Difference between 100G QSFP28 and CFP/CFP2/CFP4 Optical Modules

Before the advent of the 100G QSFP28 optical module (an optical module that can be used to support 100G transmission), the development direction of the 100G network is 10G > 40G >100G. After the QSFP28 optical modules appeared, the development mode of 10G > 25G > 100G or 10G > 25G > 50G >100G began to become widespread in the industry. And now there are already some data centers that have began to adopt this method to achieve 10G to 100G upgrade.

The cost and power consumption of data center is an important driver of the optical communication market. Reviewing the development of 100G optical modules, the form factors (CFP, CFP2, and CFP4) and the standard development and improvement also mainly focus on low cost and low power consumption. 100G QSFP28 optical module meets these requirements. The post will compare 100G QSFP28 optical module and other 100G optical modules in terms of port density, power consumption, and cost respectively.

1. Port Density

The first generation of 100G optical modules was a very large CFP optical module, and then CFP2 and CFP4 optical modules were launched, among which CFP4 optical module was the latest generation of 100G optical modules and had a width of only 1/4 of the CFP optical modules. However, the form factor of 100G QSFP28 optical module is smaller than the CFP4 optical module, which means the 100G QSFP28 optical module has a higher port density on the switch.

2. Power Consumption

The power consumption of 100G QSFP28 optical module is usually lower than 3.5W while that of other 100G optical modules is usually between 6W and 24W. From this, 100G QSFP28 optical modules have much lower power consumption than other 100G optical modules.

3. Cost

Now the data center is mainly 10G network architecture, in which the interconnection solution is mainly 10GBASE-SR optical module and duplex LC multimode fiber jumper. If the existing 10G network architecture can be directly upgraded to 40 / 100G networks, it will save a lot of time and cost.

Although 100G QSFP28 optical modules have many advantages, it is only one of many solutions for 100G network. For data centers and server rooms, suit is best. Therefore, other 100G optical modules also have a place in the 100G network. Gigalight thinks that 100G QSFP28 optical module series, like 100G QSFP28 SR4, 100G QSFP28 LR4, 100G QSFP28 CWDM4 and 100G QSFP28 PSM4, have brought a new solution for 100G applications that will promote the faster development of 100G.


Development and Applications of 100G Ethernet

The fundamental requirement to speed Ethernet interface upgrading to 100 Gbit / s is bandwidth increasing. One of the most important factors is the bandwidth-intensive applications such as video. In addition, the telecom application of Ethernet also causes the increase of convergence bandwidth demand. Every level of network, from access to Ethernet users to the backbone, is approaching its current speed limit.

The development of 100G Ethernet standards and technologies is driven by demand but ahead of schedule. According to the plan of the IEEE802.3ba Task Force (TF), it is expected that standards will be finalized by mid-2010, but the real business time depends on more factors.

Bandwidth Demand for 100G Ethernet

First of all, under the premise of standard maturity, it also needs real network demand driven and is in the interest of operators. The main factors of bandwidth demands include:

1. The increasing business is based on IP, as it is now described by ALL IP;
2. Almost all the IP packets are sent from the source to sink, the whole process is encapsulated in the Ethernet frame;
3. The technology used in Ethernet over TDM /Ethernet has matured and traditional voice compatibility is no longer a problem;
4. Ethernet encapsulation is simpler and cheaper than SONET / SDH encapsulation.

 These decisions to upgrade the Ethernet interface to 100 Gbit / s are both objective and urgent. Network communications can be achieved on 100G Ethernet networks with "accelerated network communications and improved application performance", enabling fast access to data stored in data Center of the various applications, implementation of bandwidth management, cache, compression, path optimization and protocol acceleration and other functions.

Applications of 100G Ethernet

For the application at the convergence layer, the downlink port is switching to 10 Gbit / s and the uplink can only use 10 Gbit / s port link aggregation. If there is a 100G Ethernet interface, you can improve the management, distribution and efficiency of data flow. For the data center, with the increase of 10 Gbit / s interface, there is also the demand for upstream and inter-connected high-speed interfaces. For the efficient transmission of backbone networks, we also expect the 100G high- Interface and transmission maturity.

The P802.3ba standard has fully considered the maturity of related standards and technologies of the electrical interface when adopting the 10.312 5 Gbit / s inter-chip interconnection transmission channel. The multimode parallel optical interface can support the OM3 optical fiber to meet the requirements of 100 m Even over longer distances; single-mode 40GBASE-LR4 is economical with coarse wavelength division multiplexing (CWDM); 100GBASE-LR4 uses DWDM with 25.781 25 Gbit / s per wavelength and 1 295-1 310 nm wavelength, Fully use the original fiber, integrated technology and cost, the standard selection of technologies are practical and feasible, to help promote the 100G interface in the local and metropolitan area within the commercial.

For the whole network of use, serial 100GE transmission standard and technology before maturity can use the reverse multiplexing technology. 100GE services of 10 × 10GE or 4 × 25GE interfaces are adapted to OTU2 / OTU3 through ODU2 / ODU3 and transmitted through multiple wavelengths in 10G / 40G optical networks. It is possible to eliminate the need to redesign and modify existing 10G / 40G DWDM optical networks. The transmission pattern is still ODB / DRZ / EPR - Differential Quadrature Phase Shift Keying Control (eRZ-DQPSK). This model can be used 10G / 40G existing mature optoelectronic devices, and the entire system performance and 10G / 40G system consistent. This scheme can realize the smooth network upgrade, meet the operator's cost expectation, and the device is ripe [10].

Therefore, the current cost and demand point of view, 100 Gigabit Ethernet commercial first in the metropolitan area network is more feasible solution, because in the MAN, a lot of data on the road at any time, without a variety of compensation Device transmission system will greatly simplify the network design, 100 Gigabit Ethernet just to meet this demand, while high bandwidth to meet the metropolitan area network 40% annual traffic growth. In a word, the development demand of 100 Gigabit Ethernet has already been obvious, and the cost advantage will also be strengthened constantly. However, the transmission of 100 Gigabit Ethernet transmissions needs constant technical improvement from modulation mode to operation management and maintenance.

In addition to this technology upgrade, in addition to 100 Gigabit Ethernet, other protocols, including Fiber Channel, Infiniband and SONET, will also appear in 40/100 Gbit / s networks. In the late 1990s, Ethernet ports Equipment prices have dropped more than twice as fast as competitive ATM and Fiber Distributed Data Interface (FDDI). However, 40 Gbit / s and faster networks share many of the same FPGAs, SERDES, and encoding technologies, making it difficult for any device to achieve cost advantage by mass production. 100G Ethernet may not be as dominant as it used to be. 


In general, 100 Gigabit Ethernet technology is a very viable with high-profile technology that everyone is enthusiastic to participate in, but the standards and technologies themselves have yet to mature, and commercial pilots will be launched by the end of 2009 but mature commercial is expected to be beyond 2012.

In addition to the technical and commercial challenges, the opportunities presented are enormous, starting with the opportunity for research institutes to discover and innovate; bringing new, high-return markets to component and module suppliers (but also requires high investment); For system suppliers is a comeback and take this opportunity to lead the market.

As we all know, QSFP28 optical transceiver is considered as the mainstream modules for 100G Ethernet. But how to select QSFP28 optical transceivers for 100G Ethernet? Gigalight is able to provide various kinds of QSFP28 products, including QSFP28 DAC, QSFP28 AOC, and QSFP28 optical transceivers with different interfaces such as 100G SR4 / LR4 / PSM4 / CWDM4 optical transceivers. For more details, please visit its official website: http://www.gigalight.com/.


Way to Select QSFP28 Optical Transceivers for 100GbE Network

As we all know, QSFP28 is considered as the mainstream form factor of 100GbE optical transceiver. There are many QSFP28 products on the market, including QSFP28 DAC, QSFP28 AOC, and QSFP28 optical transceivers with different interfaces such as 100G SR4 / LR4 / PSM4 / CWDM4 optical transceivers. Which of the following is the best fit for your 100GbE network in these QSFP28 optical transceivers? It depends on several factors, the most basic being the distance you might want to reach and the type of cable you plan to use. This article will focus on how to select QSFP28 optical transceivers for 100GBE network.

1. Rack Cabling: 1-5M

QSFP28 Passive DAC High Speed ​​Cables include the QSFP28 to QSFP28 DACs and the QSFP28 to 4x SFP28 DACs, all of which are ideal for use within 5m. The QSFP28 DAC is an ideal solution to replace 100G optical transceivers for 100G short-range connections. If your 100GbE network is deployed in a 5m rack, the QSFP28 DAC passive high-speed cable is perfect for you.

2. Multi-mode Fiber Cabling between the Switches: 5-100M

There are two options for 100GbE cabling that uses multimode fiber between switches. One is to use the most suitable QSFP28 AOC active optical cable 3-20 meters. Another option is to use a QSFP28 SR4 optical transceiver with a 12-pin MTP OM3 / OM4 fiber patch cord. QSFP28 SR4 optical transceiver and 12-pin OM4 MTP fiber patch cord can support 100 meters of data transmission.

3. Single-mode Fiber Cabling between the Switches :100M-2KM

More than 100 meters but less than 2 kilometers are often referred to as medium distances. For most large data center operators, the 100GbE solution that is able to meet the medium-to-long distance at low cost is their best choice. QSFP28 PSM4 optical transceiver and QSFP28 CWDM4 / CRL4 optical transceiver are both suitable for long-distance 100G network. The PSM4 QSFP28 optical transceiver needs to be used with eight parallel single-mode optical fibers at a transmission distance of about 500 meters. CWDM4 / CRL4 QSFP28 optical transceivers need to be used together with single-mode fiber, the transmission distance can reach 2 km.

4. Long-mode Single-mode Fiber: ≤ 10KM

For very long 100GbE networks, such as connections between two buildings at distances of up to 10 km, the QSFP28 100GBASE-LR4 with an LC interface is the best defined by the IEEE and is typically used with single mode fibers. But now, the price of QSFP28 LR4 light module is still very high.

In Conclusion:

High-speed cables can only be used for short-haul connections between racks and at a fraction of the cost of optical transceivers, but their range of applications is limited. For most applications, various 100G optical transceivers still have an irreplaceable role. Gigalight supplies a variety of high-quality 100G optical transceivers, and ensures 100% compatibility. For more details, please visit its official website.


Gigalight Announces the Completion of Establishment for 100G CWDM4&PSM4 Mass-Production Lines

Shenzhen, China, November 29, 2017 Gigalight today announces that the mass productions of Gigalight 100G optical transceivers with high performance (100G QSFP28 CWDM4 and 100G QSFP28 PSM4 ) have been completed, which adopt the same tech platform and producing platform.
The development of data center leads to the huge demands on the 100G QSFP28 CWDM4/PSM4 optical transceivers. For many top-ranking companies manufacturing optical transceivers, the research and development of samples is easy, but how to produce them in volume and to guarantee their quality and reliability has always been a trouble in the industry. Gigalight 100G CWDM4/PSM4 is finally developed into the products with high productivity and high reliability after a long-time research and development from the COB tech to the third-generation hybrid hermetic encapsulation.
During the establishment of product lines, the CWDM4/PSM4 is produced in the 10000 grade dust-free workshop with constant temperature and constant humidity. Besides, this workshop covers 2000 square meters, and is equipped with 3 sets of fully-automatic wire bond/die bond devices with high precision and other automatic devices for producing and testing. At present, the capability of production is producing 20k optical modules per month. The brief introductions about PSM4 and CWDM4 will be respectively involved in the following contents.
The general power consumption of PSM4 optical transceivers produced in volume is almost less than 3.0W; the margin of optic eye diagram is higher than 20%; the receiving sensitivity of RX optic is higher than -14.0dbm under 1E-5BER; the jitter rms is less than 2.5ps. In addition, over 10KM optical transmission without error code is available for this module.  

The general power consumption of CWDM4 optical transceivers produced in volume is almost less than 3.0W; the margin of optic eye diagram is higher than 20%; the receiving sensitivity of RX light is higher than -10dbm under 1E-5BER; the jitter rms is less than 2ps. Moreover, over 2-10KM optic link circuit transmission is available for this module.

In 2011, Gigalight launched leading data-center active optical cables in domestic at the first time. After that, Gigalight successively launched 100G AOC, 100G SR4/LR4 optical transceiver, 200G QSFP-DD SR4 optical transceiver and AOC.

The announcement that CWDM4/PSM4 optical module can be officially put into production means that Gigalight has completely controlled all technical secrets about the COB tech platform, space optical design platform, AWG platform and hybrid hermetic encapsulation platform. All efforts build the solid foundation for Gigalight challenging to silicon tech platform.   
About Gigalight:
Gigalight is global optical interconnect technology innovator that focuses on high-end optical network products and solutions in three main applications: Data Center & Cloud Computing, MAN & Mobile Base Station, and Video & Consumer Optics. With more than 10 years' experience in optics industry, Gigalight has become a leader in global market of optical communications. Gigalight also sets up its e-commerce platform - Infiberone, which is mainly for industrial grade high-end fiber optics products. 


A Good Chance of Lifetime for You to Show Your Talents In the Communication Industry

Maybe you have been looking forward to a chance to display your talents for a long time. Now, fortunately, Gigalight right has a good opportunity for you!
Once you miss it, maybe you will be regretful! Therefore, Don't wait, just visit here to catch it: https://www.infiberone.com/Plate_Detail_388.html
Gigalight Tech Center Address In Wuhan


Gigalight 100G Single Optical Transceiver Has Been Admitted By Domestic DPI Manufacturers

Nowadays, DPI industry is developed rapidly. In the development waves, the demand of Network security is constantly raised, and the personalized recognition for the users’ service is also gradually strengthened. Therefore, how to meet the market demands of data center, manufacturers and Internet enterprises,has recently become the crucial topic of Gigalight.
However, at the process of the implement from the gradual upgrading of 10G POS/WAN-40G/100G to the enrichment of product line, the improvement of delivery capability, the making of long-term goals, Gigalight has made breakthrough achievements in these aspects, seen from the truth that Gigalight continuously has won the bids  of the leading DPI device manufacturers in this field and has gained their supports. Now, the below is the detailed introduction about these measures:

Measure 1: Providing Rich Product Lines
For an enterprise, products are the core. Rich product lines is able to meet the needs of manufacturers in many aspects and to reduce the combination costs. Therefore, Gigalight spares no effort to build one rich product line, 100G QSFP28 LR4/CFP LR4/CFP2 LR4 series single optical module product line, satisfying the needs of clients about the high bandwidth. Meanwhile, by the tech innovation , the adoption of self-developed ROSA components lead to the low-cost products, bringing DPI manufacturers practical benefits. In addition, the 100G CFP4 LR4 also can be customized and achieve the multiple options of products.

Measure 2: Improving the Delivery Capability
For the professional optical transceiver manufacturers, they are not only with the ability to offer clients high-quality and high-performance optical transceiver solutions, but also with the delivery capability to share the delivery pressure of manufacturers.

Recently, Gigalight DPI series 100G single optical transceiver continuously won the bids of leading device manufacturers. Faced with the short delivery time, Gigalight gave the manufacturers a satisfying result by virtue of their strong delivery ability and high quality products, by which they are highly admitted by domestic DPI manufacturers and DPI market is also injected a new fresh air. 

Measure 3: Making The Long-Term Goals
For a company, a long-term  goal is the motivation of producing and the soul of offering higher-quality service for clients. Gigalight combines the market needs and its own tech strengths to achieve the goal, in the later two years’ DPI market, making the 100G product’s cost at $100 via scale and new tech to get the DPI devices applied widely, to continuously provide manufacturers with high-quality and low-cost optical module products and to offer more low-cost products to DPI manufacturers for options.

Above all is the Gigalight news about 100G single optical transceiver. If you want to know more, welcome to contact us at any time.

Note: Gigalight is the head office of Infiberone.


Consideration on the Applications of 100GE QSFP28 in the Large-Scare Data Center

1.The Changes On the Structure of Data Supercomputing Center Lead to the 100GE ports’ rapid increasing in Number, Showing the importance of Structure 
With the rapid increasing of IP flux , the accelerated infiltration of cloud computing and virtualization, and the fast burstout of IDC inner flux, large-scale data center is developed toward new and flat leaf- spine network structure continuously. Traditional three-layers network structure of data center will be replaced by new and flat leaf- spine network structure. 

Meanwhile, With the rapid increasing in quantity of interconnection ports between leaf converters and spine converters, the demands on high-end 40GE/100GE optical transceiver also rise rapidly with it. It’s predicted by the Third-Part Institution that 40GE/100GE high-speed optical modules’ quantity ,needed by leaf- spine network structure, is 15-30 times the quantity of Traditional three-layers network structure for the large-scale data center. In addition, high-speed optical modules will be upgraded from10G/40G optical module to 100G/200G, especially is 100G optical module, demands for it will be raised in a large scale. 

2.Exploration On the Background of Rapid Increasing for 100G Optical Module, Showing the Importance of Wiring 
It’s predicted by the Third-Part Institution, Ovum, that the deployed quantity of 100G single-mode optical module will be close to or exceed the one of 100G multimode optical module, With the rapid increasing in quantity of interconnection ports between leaf converters and spine converters, and the distance among converters extended . Shown as the above pic, in the data center with 500,000 ft2, the quantity of TOR/Leaf/Spine converters and 100G single-mode/multimode optical modules has been listed clearly. We need to make some theoretical exploration:  

A. Difficulties in wiring space due to the density of scales and devices. For these difficulties, data center may prefer to choose the 100G CWDM4 optical module in the long-distance interconnection, because it saves the fiber wiring space and the reduces fiber wiring difficulties superficially at least. But such kind of savings lead to self-limitation on account that wiring structure has no good designs from the beginning. Therefore, deep consideration is necessary before deploying it.

B. Based on the comprehension for scale and different techs, PSM4 and CWDM4 optical module will be deployed. They should be used on the basis of comprehensive assessment for their stability, power dissipation and working life. Technically evaluating, CWDM4 optical module is more complicated than PSM4 optical module. 

But whether the complex standards constituted by industry association are reasonable is worth reflecting. The performance of CWDM4 optical module is becoming higher and higher, and the large-scale usage for it will exist no dangers under the guarantee of 65 or double-85 test’s reliability. But we haven’t seen the improvements on techs from PSM4 to CWDM4, and it seems that everything is like factitious tech barriers and trends. Our viewpoints on CWDM4 are that it’s just an extension for PSM4 optical module, not another application tech superior to the former. The large-scale applications for the PSM4 and CWDM4 may be a miracle in the data center.

C. The wiring structure of data center has a great influence in the cost of large-scale data center. What we should focus on is wiring, not devices, which we consider as the deviation of industry’s focus. When we are keen on studying converters and servers with high speed and high performance, we must have wiring techs suitable for them, which is just like that inspection for subgrade , the assurance for the structure and plot ratio of the building, should be done before building a house. If everything about it weren’t confirmed, the built house may be with hidden safety dangers or not good in Fengshui theory. 

Similarly, if we don’t confirm the basic wiring, the PCB layout of electrical products, in advance, the performance of them will be at a mess. If a data center is built hastily, no differences with previously-built computer room, and it will truly enter into the deserted stage. 

D. We must have a long-term consideration on data center, in which long term must be a relative concept. How long it should be must integrate the present progress and demands on dealing with the datas in the data center. If the sources of rapid increasing needs aren’t confirmed, frankly speaking, the distribution for a new data center will be finally proved to be impractical and wasteful when it adopts immatural or the most advanced products. 

In addition, the future level about interconnection tech of data center still isn’t confirmed, even though certain paths made by industry association aren’t necessarily correct in the direction. Now, industry association is used to making many decisions hastily, which usually leads to efforts in the incorrect direction. 

3.Advantages of 100G PSM4/100G CWDM4/100G LR4 Optical Module And The Importance of Choices.
A comparison about the integrated parameters of 100G optical module in wavelength, optical connector, fiber types, working distance, the interior of optical module with/without MUX/DEMUX, system terminal with/without needs of FEC function, the power dissipation of optical module and so on, in this table, used for customers’ reference:    

100GBASE-SR4(100 m) and 100GBASE-LR4(10 km) are defined by IEEE. Due to the needs from data center customers, 100G CWDM4 and 100G PSM4 are also defined by MSA, making up for the gap in needs between 100meters and 10KM. Compared with 100GBASE-LR4, 100G CWDM4 and 100G PSM4 have the lower cost advantages and their application distances cover 2 KM. And 100G PSM4 adopts parallel single-mode tech and MPO APC 8°connector with eight fibers, with the lowest cost in the 100G single-mode transmission tech. 

Besides, in the market, there is 100G PSM4 made on the basis of silicon photonics tech or traditional 4x mini TOSA packaging tech. Similarly, they have the advantages on the low cost. Sometimes two-fibers CWDM4 are considered to be more economical and practical than multi-fibers PSM4. However, the results is contrary:
1. PSM4 increases the complexity of wiring density, and CWDM4 results in the complexity of devices’ performance. 

2. PSM4 is still available to extend in space, and CWDM4 has gotten into the endless loop.

3. PSM4 is with higher stability and reliability in the wavelength, and in the present whole chain, CWDM4 still exists problems in reliability and have no way to pass the double-85 test. 

4. PSM4 is with lower power dissipation, and CWDM4 needs interior temperature or control from the external environment to reach the ideal power dissipation on account that the narrow space of module causes the heat dissipation problem.

5. PSM4 is easier to manage because of its clear link path, and CWDM4’s link path is not clear. 

Whatever optic product manufacturers of data center want, the producers of optical module can provide it for them. And it’s proved that there exists direction problems in the previous comparison of advancement and superiority between optical module/ devices and data center. All techs about optical module will tend to be same in the performance and be more stable one year later. We should concentrate on the improvement of wiring techs and more economical and practical items. 

With the progress in the optical interconnection tech, data center will tends to be at the state of instant evolution and flourish, which means continuous devotion and evolution and is with no ultimate products. The combination process from 1G to 100G and then from 400G to 1T, will be the final and vital formation of data center, based on the combination of different applications.  

4.Introduction about 100GE QSFP28 Data Center Application Cases
1. In June, 2016, Azure data center started to adopt Intel 100G QSFP28 PSM4 silicon photonics optical module volumely. Azure cloud service have been used in the 140 countries, and over 90% of Fortune 500 enterprises have applied Microsoft Azure, which will be immediately expanded to 34 areas on the basis of existing 28 areas in the world where more than 100 data centers were invested to build. The number will exceed the sum of AWS, Google and AliCloud. 

2. In February, 2017, Facebook specially released OCP CWDM4 standards to deploy 100G QSFP28 CWDM4 scalely. For the volume production and low cost, Facebook has loosened part of standards, such as working temperature, optical emission power, receiving sensitivity and optical link path index. At present, Facebook has purchased 100G QSFP28 CWDM4 optical module.

5.Recommendation on the Infiberone 100GE QSFP28 Products 
By their own strength, Infiberone developed 100G QSFP28 CWDM4 optical module with cost benefit by themself. This optical module adopts self-packaged optical engine, and some micro components are assembled inside, such as DFB laser(1271nm,1291nm,1311nm and 1331nm)of 4-channels 25Gbps uncooled CWDM, 4-channels optical detector, CDRs, micro AWG chip and so on. Under the total air temperature(0~70℃), its typical power consumption is lower than 2.6W, and its optic eye diagram margin is higher than 20%. 

In addition, its sensitivity is(pre-FEC 1E-5BER OMA)<-10.5dBm. Its error rate guarantees BER is higher than 1x10-12 under the application of post FEC. Meanwhile, it uses Duplex LC optical interface and meets the needs of 2km transmission distance. Infiberone will get about to producing it volumely in the forth quarter of 2017.
Infiberone QSFP28 PSM4 optical module shows a good performance under the  -5°C/25°C /55°C. The uniformity and consistency of four channels are accorded with design requirements and its optical eye diagram margin is higher than 15% under the -5°C/25°C /55°C . and sensitivity is higher than-9.5dbm(1E-5) constrained by agreements, meeting the needs of data center applications in the fiber transmission distance, no less than 2km. the success on the development of Infiberone 100G PSM4 optical module, means that it officially has its own essential tech and skill in the single-mode optical engine. In addition, it will start to produce this product volumely in the third quarter of 2017.

Infiberone set about to developing data center single-mode product line and its packaging techs in 2015 and officially sold 100G QSFP28 LR4 (DML)products in the end of 2016. 100G QSFP28 LR4 optical module’s power consumption is lower than 3.5W, and uses self-packaged optical engine, ROSA. In addition, its transmission distance can reach 10km when it’s connected with single-mode fiber. It conforms to IEEE802.3ba 100GBASE-LR4 and QSFP+ MSA standards. Its typical power consumption is lower than 2.6w under the total air temperature (0~70℃) and its optical eye diagram margin is higher than 20%. In the first quarter of 2017, Infiberone gets down to producing this product volumely.

For Infiberone second-generation 100G QSFP28 SR4 with lower power consumption, under the CDR working condition, its typical power consumption under the indoor temperature and 70℃ respectively is 2W and 2.2W, reaching the power consumption level ,MAX POWER 2.5W in the SFF-8436 V4.8 MSA Power level 3. 

Meanwhile, it meets the standards, such as IEEE 802.3bm 100GBASE SR4, InfiniBand EDR, 32GFC and so on, downward compatible with 10GE, completely suitable for transmission applications on transmission, such as OM3 75meters fiber transmission and OM4 100meters fiber transmission. Under the true test conditions, OM4 fiber with 100meters transmission distance has no any error code according to the stricter error rate test standards. 100G QSFP28 SR4 adopts the lens tech and optical engine tech self-developed by Infiberone, supporting the digital diagnostic function and integrating data channel of 25Gbps with 4 channels and receiving-and-sending function. 

In addition, 100G QSFP28 SR4 optical module is with higher performance in optical eye diagram, sensitivity for receiving and electric eye chattering. At present, this product has been produced volumely. The VCSEL optical module tech and production tech platform are self-developed by Infiberone, and their related cost is close to critical value by optimization whether it’s in coaxial packaging or COB tech. Advantages on the scale of delivering has been strongly supported by suppliers. 

Infiberone is the advocator of 100G QSFP28 optical module products and tech marketing in date center ,and maintains a keen insight into technology and cost . In 2016, Infiberone started to arrange the layout about all series of 100G QSFP28 optical module and solutions. In March,2017, 100G PSM4 optical module was officially pushed out. And in July,2017, the sample of 100G QSFP28 CWDM4 optical module was developed, which used AAWG chip and unique COB tech platform, with good stability in temperature, suitable for the capacity expansion of data center with parallel structure or optical interconnection structure of wavelength division multiplexing style data center. 

The successful development of 100G QSFP28 CWDM4 and 100G QSFP28 PSM4 optical module has built a new competitive strength for Infiberone data center market strategy, and will also be one of the most powerful suppliers of 100G optical module in the domestic data center.

Note: Infiberone is a sub-brand of Gigalight, we focus on high-end optical network devices, mainly supplying industrial-grade optical transceivers and professional optical interconnection components for data centers. With more than 10 years' experience in optics industry, we now have professional R&D team(more than 100 engineers) and stable supply ability. 


Infiberone Pushed Out Low-Cost OTU4 100G Optical Transceiver to Remarch Toward DPI Market

News on August 31st,2017. It’s reported that Infiberone has pushed out new-style OTU4 100G optical transceiver, including 100G CFP2 LR4 10KM and 100G OTU4 QSFP28 LR4, before the coming of CIOE, which will be a very attractive choice for DPI clients.
     100G CFP2 LR4 10KM

      100G OTU4 QSFP28 LR4

Infiberone new-style OTU4 100G optical transceiver is available for four-channels full duplex communication, in which the transmission speed rate of each channel is 28Gbps, uses self-developed 100G ROSA, is accorded to CFP2 /QSFP28 MSA hardware standards, IEEE 802.3ba 100GBASE LR4 and OTU4 4I1-9D1F, and is with MDIO digital diagnostics and control functions. In addition, DML optical master with assembled LD chip and DML PIN acceptor with high flexibility are adopted, in which the power consumption of CFP2-LR4 is lower than 6W and the one of QSFP28 LR4 is lower than 3.5W, both of which have advantages of low power consumption, and available to transmit data of 100GbE and OTU4 in 10km single-mode optic fiber.

                             Transmitting Optic Eye Diagram

Compared with EML 100G optical module adopting EML optical master,DML optical receiver is mainly responsible to deal with problems about the low cost and low power consumption in the DPI market. The requirements for DML optical master are raised due to the rising of speed rate. Therefore, the transmission of OTU4 will be a very big challenge. However, Infiberone succeeds in breaking through the hard tech problems and solving the usage problems of DML at the speed of 28Gbps by combining the market trend and its own developed strength and via innovative tech development.
With the rapid development of Internet, cloud computing, data center and so on. Infiberone will push out more products with high-quality and new tech to meet the clients’ multiple needs. Let’s expect it.

Note: Infiberone is a sub-brand of Gigalight, we focus on high-end optical network devices, mainly supplying industrial-grade optical transceivers and professional optical interconnection components for data centers. With more than 10 years' experience in optics industry, we now have professional R&D team(more than 100 engineers) and stable supply ability. 


A Big Sale for Optic Transceiver

Hey, Look here quicklyGood newsA very big sale for you! Chances will not come again once you miss it!
A Big Sale for Optic Transceiver


Infiberone Will Demonstrate 200G QSFP DD SR8 During the 2017 CIOE and ECOC Exhibition

It’s recently reported that Infiberone has pushed out 200G QSFP DD SR8(2X 100GBASE-SR4) optical module officially and will have a demonstration on the spot during the CIOE2017 and ECOC2017 exhibition. 
Infiberone 200G QSFP DD SR8 optical transceiver supports 8-channels 25Gb/s data channel, and its total bandwidth is suitable for 200GE Ethernet, conformed to QSFP-DD MSA. Besides, it has apparent advantages, such as the low power dissipation lower than 3.5W, outstanding design to solve problems about the accumulations of temperature, and has the digital diagnostic function. In the real testing environment, it is entirely accorded with the  100m OM4 fiber transmission applications without error code according to the strict error-code testing standard, lower than -152 . In addition, 200G QSFP DD SR8 optical transceiver is with high-quality optical eye diagram, high flexibility in accepting and high performance in electric eye jittering.

The testing data about TX optical eye diagram, RX electric eye diagram, power dissipation, and error code rate is as below:
                Emitting Optic Eye Diagram(CH 1)        
                    Outputing Electric Eye Diagram(CH 2)
Infiberone 200G QSFP DD SR8 adopts the self-designed lens, assembles two self-developed optical engines, and has duplex 25Gbps data channel with 8 channels under the same packaging size as QSFP+ . To some degree, QSFP DD optical transceiver with bandwidth twice as much as 100GE QSFP28 SR4’s, and with doubled-density, can vastly meet the needs for the rapid increasing of data center flow. 

                              200G QSFP DD SR8 Internal Sketch
Besides offering higher capacity of bandwidth density and higher bandwidth density, QSFP-DD optical transceiver is also forward/backward compatible with QSFP, QSFP28 optical transceiver, AOC/DAC and so on. Seen from the present market needs, demands for data center products are prosperous, which requires to update products continuously and reduce the products’ costs. At present, Infiberone pushes out brand new 200G QSFP DD SR8 optical transceiver right to solve cost problem for clients depending on their own strength.  
Meanwhile, Infiberone also provides 200G QSFP DD AOC and 200G QSFP DD to 2x 100G QSFP28 Breakout AOC. If you want to know more details about it, and welcome to visit our exhibition stand for consulting! 

2017 CIOE Address: ShenZhen Ritz-Carlton Hotel
2017 ECOC Exhibition Stand NO:481, See You in Sweden!

Note: Infiberone is a sub-brand of Gigalight, we focus on high-end optical network devices, mainly supplying industrial-grade optical transceivers and professional optical interconnection components for data centers. With more than 10 years' experience in optics industry, we now have professional R&D team(more than 100 engineers) and stable supply ability. 


Cautions About the Cabling System To Improve Devices’ Performances

Maybe you know about #cabling system. However, Do you know how to choose a good cabling system to improve your devices' performance? Well, here are tips for you:


It’s Time To Make A Cleaning For the Data Center

After seeing the pics, are you still hesitant to clean for the #data center?😱

Don't be mean to your data center, and it needs your attention. So just do it!

BTW, here is cleaning tips for you: https://www.infiberone.com/Plate_Detail_329.html


The Handiest Pre-terminated Fiber Cabling Assemblies in Data Center

Nowadays, it usually takes a lot of time and labor to deploy data center, especially in the #fiber cabling .To deal with these problems and to meet the requirements for high density of the data center, pre-terminated fiber wiring are introduced to data center. Among of it, the handiest one is this one in this website:


When using MTP Fiber Patch Cable, What Should We Pay Attention to On Earth?

To keep pace with the development of data center and meet the demands on the wiring system. Optic MTP fiber patch cable plays a key role in them and is popularly applies in our life. However, how much do we know about it on earth, and what should we pay attention to when using it? I believe we can get the answers from this article

Brief Introduction
Fiber MTP patch cable/cord is used for the connection from the device to fiber wiring link path, with thicker protection layer, usually applied for the connection of optical transceiver and terminal box.
Patch cord is also called fiber connector, connector plugs set on the both ends of fiber cables to finish the optic path connection. In addition, the fiber end with plug is called pigtail of optic fiber cableMTP patch cable is similar to coaxial cable, but without mesh shielding layer. Its core is glass fiber used for optic transmission. For the multimode fiber, its fiber diameter is 50μm~65μm, almost as thick as a person’s hair. While for the single-mode fiber, its fiber diameter is 8μm~10μm. External of fiber is covered with a layer of glass wrapper with low index of refraction to keep the fiber in the core. Then its outermost layer is a layer of thin plastic cover to protect the wrapper.
1m 12 fibers MTP-12-F MTP Single mode Patch cord Standard loss
Types of MTP Fiber Cables
1. According to its transmission media, it is classified into silicon-based single-mode/multimode fiber patch cables .
2. According to the structure of connector, it can be classified into FC patchcord, SC patchcord, ST patchcord, LC patchcord, MTRJ patchcord, MPO patchcord, MU patchcord, SMA patchcord, FDDI patchcord, E2000 patchcord, DIN4 patchcord, D4 patchcord. In addition, the common ones can be classified into FC-FC, FC-SC, FC-LC, FC-ST, SC-SC, SC-ST.
Single-mode Fiber Patch Cable: It usually is shown in yellow, and its connector and protection case usually are shown in blue. Besides, its transmission distance is relatively longer.
Multimode fiber patch cable: It usually is shown in orange, sometimes in gray, and its connector and protection case usually are shown in beige or black. Besides, its transmission distance is relatively shorter.

Among the patch cables, What FC\ST\SC\LC\MTRJPC\APC\UPC Representing Respectively?
FC, ST, SC, LC and MTRJ mean the differences in the connecting way of physical connector.
FC means round screw port
ST means round 45° bayonet
SC means square inserting port
LC and MTRJ mean connector for small fiber stub, used rarely in China,but used in part of imported devices.
PC, APC, UPC means the front interface structure of ceramic ferrule
PC means spherical structure
APC means oblique 8 degrees structure.
UPC means hyperplane structure.

Using Tips
1.The receiving-and-sending wavelength of optical transceivers on the both ends of fiber patch cable must be same, distinguished by the color of optical module. Among the optical modules, ones with short wavelength uses multimode fiber patch cable, and ones with long wavelength uses single-mode fiber, to guarantee the accuracy of data transmission.
2. Without excessive bending and encircling when used in case that the weaken degree of optics is enlarged in the process of transmission. The fiber patch cord’s connector must be protected with protective jacket to avoid damage of fiber coupling due to the dust and oil.
3. If the fiber connector get dirty, it would be better to clean it with alcohol to avoid affecting the quality of community.

Cautions You Should Pay More Attention to
1. Necessary to clean the ceramic core and core interface of fiber patch cord with alcohol before using it.
2. The minimum bending radius of fiber is higher than 150mm when used.
3. Protecting core and core interface from the damage or pollution. So dust cap would better be blocked after using it.
4. No looking at the fiber interface directly when the laser signal is transmitted.
5. Would better replace the damaged fiber patch cord in time when it’s damaged due to factitious or other irresistible factors.
6. Would better read its specifications before installing it, and finish the installation and test under the guide of factory’s engineer
7. Able to test them one by one via the method of eliminating the troubles when the abnormal situation happens in the fiber network . When testing or eliminating patch cord troubles, Continuity Testing can be done at first, usually able to make a polishing judgment on the whole fiber link path by the visible laser pen. Or taking the further test for indexes with the precise fiber Insert Loss and Return Loss equipment, if indexes are within the required range, the patch cord is qualified; if not, it’s not.

Guide for Selection of MTP Patch Cord
According to the termination connection type, fiber patch cord is classified into three types: ST-ST, SC-SC, ST-SC. According to the fiber type, it can be classified into single-mode fiber and multimode fiber. And the length of patch cord includes 0.5m, 1m, 2m, 3m, 5m, 10m. According to the material of cable outer sheath, it can be classified into ordinary type, ordinary flame retardance type, LZSH, LSHF-FR and so on.
According to the fireproof grade of buildings and demands on the refractory material, the related measures should be taken in the wiring system. In the flammable areas and building silos, the cables or fiber cables made by refractory materials would better be applied. In the  large-scale public places, cables or fiber cables with refractory material , low smoke and low toxicity would better be used.

Above all is the detailed tips about the MTP patch cord, hoping that is beneficial to you. If you want to know more about details, maybe you can visit this website: www.Infiberone.com.

Infiberone is a sub-brand of Gigalight, we focus on high-end optical network devices, mainly supplying industrial-grade optical transceivers and professional optical interconnection components for data centers.With more than 10 years' experience in optics industry, we now have professional R&D team(more than 100 engineers) and stable supply ability. 
We aim to create a highly reliable procurement platform for clients those value brands and quality. Every merchandise sold on Infiberone has 5-year quality warranty period, every order sent with free shipping and every item allowed to return in 30 days if there is quality issue. 
                  Product Lines                                    Catalogue                                Video introduction

               Head office:   17F, Zhongtai Nanshan Zhujue Building, 4269 Dongbin Road, Nanshan District, 
               Shenzhen, Guangdong, China
               Company Website: www.infiberone.com
               Business Inquiry: sales@infiberone.com  
               Customer Support: support@infiberone.com 
               Account Issue:  account@infiberone.com
              Suggestion/advice: suggest@infiberone.com 
              Skype: infiberone

              Follow us: