Lafite's Blog

The Gigalight 40G QSFP+ ER4 40km optical transceiver is designed for 40GBASE-ER4 Ethernet and OTN OTU3 links reach up to 40km over Single-Mode Fiber (SMF). Features Hot-pluggable QSFP+ form factor 4 channels full-duplex transceiver module 4x uncooled CWDM DFB lasers and APD ROSA Compliant with QSFP MSA, IEEE 802.3bm 40GBASE-ER4 and OTN OTU3 Data rate up to 44Gbps Reach up to 40km over SMF Low power consumption < 3.5W Duplex LC receptacles Operating case temperature range 0°C to 70°C Single 3.3V power supply RoHS compliant (lead-free) Conclusion The Gigalight 40G QSFP+ ER4 40km optical transceiver is designed for 40G Ethernet and OTN OTU3 links reach up to 40km over Single-Mode Fiber (SMF). It is compliant with the QSFP+ MSA, IEEE 802.3bm 40GBASE-ER4, and OTU3 requirements. The Gigalight technology enables the integration of 4 transmitters, 4 receivers and an optical MUX/DeMUX into a small form factor package. Gigalight has successfully launched 40G QSFP+ E...

The Gigalight 200G QSFP-DD PSM8 NRZ 10km optical transceiver (GDM-SPO201-LR8C) is designed for 2x 100G PSM4 Ethernet links reach up to 10km over Single-Mode Fiber (SMF). Features The 200G QSFP-DD PSM8 (dual PSM4) module integrates eight data lanes in each direction. Each lane can operate at 25.78Gbps up to 10km over G.652 SMF. It is designed to operate over single-mode fiber systems using a nominal wavelength of 1310nm. The electrical interface uses a 76-contact edge type connector. The optical interface uses a 24-fiber MTP/MPO connector. This module incorporates Gigalight proven circuit and optical technology to provide reliable long life, high performance, and consistent service. Hot-pluggable QSFP-DD form-factor 8 channels full-duplex transceiver modules 8x 1310nm DFB array and PIN photo-detector array Internal CDR circuits on both receiver and transmitter channels Supports CDR bypass Compliant with QSFP-DD MSA, 100G PSM4 MSA and InfiniBand DDR/EDR Data rate up to 206...

5G motivates the edge computing progress. Higher rate and higher density optical transceivers will be required. Edge computing is the leading-edge technology for the next-generation data center. In the current period, edge computing is in the period of practice. It is important that how to develop edge computing and how to meet the needs of edge computing. On Jun. 25, 2019, the OCP China Day hosted in Beijing, China by one OCP Platinum member, Inspur. The distinguished guests from Microsoft, Facebook, LinkedIn, Baidu, Tencent, and Inspur attended the conference. They share vital topics such as artificial intelligence, edge computing, and SONiC about various leading-edge technologies here. Among these topics, edge computing has been frequently mentioned, here we will discuss the development of 5G and edge computing. Source: Inspur Edge Computing The emerging applications and exponential data growth have been driving cloud service to extend the edge. It is difficult to cope with ...

With the commercial use of cloud computing, big data and other new technologies, data center flow and bandwidth have an exponential increase. There is a huge opportunity for optical transceiver vendors. At the same time, we can see that there are some differences in the application for optical transceivers between the data center and Telecom. First of all, here will discuss the requirements for data center optical transceivers in detail. The Requirements for Optical Transceivers Low Cost It's the foundation for data centers to use a large number of optical transceivers and the power of facilitating the data center development. Low Power Consumption It complies with the concept of human green development and promotes industrial development under the premise of protecting the environment. High Speed It meets the requirement of data communication such as cloud computing and big data. High Density It increases the number of optical transmission channels in unit spac...

In general, there are three ways of 25G access of server, namely DAC (Direct Attach Cable), optical transceiver and AOC(Active Optical Cable). DAC can reach no more than 5m, so it is difficult to meet the requirements of cross-rack wiring distance. The optical transceiver can reach up to 100m or more using multi-mode fiber, but the cost is high. AOC is an Active Optical Cable. AOC can reach up to 30m at a reasonable cost. Therefore, AOC cable is a good choice for cross-rack server access, which is more suitable for China's current data center rack power and network architecture. Here’s some information about the 25G AOC that you may be wondering about. 25G AOC provides a cost-effective solution for those same data center applications that require longer distance interconnect using active optical Ethernet technology. There are some advantages to 25G AOC . The Advantages of 25G AOC 25G is the next trend from 10G to reduce the cost per Gbit/sec 25G provides 2.5 times the b...

Since 2006, Gigalight has been dedicated to providing the best optical devices for telecom customers. Today, Gigalight has accumulated the most comprehensive portfolio of optical transceivers covering 100M to 400G optical transmission networks. These products adopt the latest form factors such as QSFP28, QSFP56 and QSFP-DD, as well as the latest PAM4 and coherent technologies. At the same time, Gigalight has also prepared the best solution for 5G commercials around the world, the proudest of which is the 10G/25G/100G industrial transceivers and 5G OMUX portfolio for 5G fronthaul. Gigalight has always regarded product reliability as one of the most important indicators, and through long-term and large investment in R&D, it is now guaranteed that all products will achieve the best reliability within the GR standard of MTBF>20 years. Depending on the scaled production line and the automated production line being deployed, Gigalight has a strong supply capability and continues...

To meet ever-growing bandwidth requirements of service provider and data center networks, 100 Gigabit Ethernet was officially standardized in July 2010 under IEEE 802.3ba. In response, Gigalight 's engineers deliver industry-leading, standards-compliant, 100G pluggable optical transceivers . This Multisource Agreement (MSA)-compliant, CFP modules help to provide connectivity options within service provider core networks, and from service provider networks to large data centers. Modern data center traffic is becoming more and heavier, and east-west flow between servers if you haven't adopted the new two-tier Ethernet switching architecture called leaf-spin. They get you the highest density interconnects between data center switches and to the outside world. Let's see which ones belong where at the bottom we have the leaf switches and servers. The 100G QSFP downlinks on the leaf switches break out into 425G QSFP connections one for each server copper cables are lowest ...

The demand for the 100G optical transceiver by the 5G network is very urgent. At present, there are many kinds of mature 100G optical transceivers in the market such as 100G QSFP28 optical transceivers and 100G CFP-DCO optical transceivers provided by Gigalight. This article will introduce the optical transceivers can be provided by Gigalight for 5G fronthaul, midhual and backhaul, especially, 25G BiDi Fronthaul Solution, 100G QSFP28/200G QSFP56 Midhaul/Backhaul Solution. First of all, let’s see the demand for optical transceivers by 5G. Optical Transceivers for 5G Fronthaul( I-temp) Product Name Wavelength Reach Optical Interface Fiber Type Power Consumption 100G QSFP28 SR4 850nm 100m MPO-12 MMF ＜2.5w 100G QSFP28 4WDM-10 LWDM 10km Dual LC SMF ＜3.5w 25G SFP28 SR 850nm 100m Dual LC MMF ＜1w 25G SFP28 LR 1310nm 10km Dual LC SMF ＜1.5w 25G SFP28 ER 1310nm 40km Dual LC SMF ＜2.5w 25G BiDi SFP...

AOC is composed of integrated optoelectronic devices for high-speed, high-reliability interconnected transmission device between data centers, high-performance computers, and large-capacity memory devices. It usually meets the industry standard electrical interface and transmits data by the superiority of fiber optic cable and electrical-to-optical conversion. While AOC reaches can extend to the limits of the optical technology used (100-200m), installing a long 100m cable, complete with an expensive transceiver end, is difficult in crowded data center racks so the average reach typically used is between 3-30m. Only one “oops” per cable allowed. Damaging the cable means replacing it as it cannot be repaired in the field. AOCs are typically deployed in open access areas such as within racks or in open cable trays for this reason. Gigalight 25G SFP28 Active Optical Cables (AOCs) are direct-attach fiber assemblies with SFP28 connectors, compliant with 25G Ethernet IEEE 802.3by 25GBA...

25G Ethernet, or 25Gigabit Ethernet (25GbE), is developed by IEEE 802.3 Task Force P802.3by. The IEEE 802.3by standard uses technology defined for 100Gigabit Ethernet implemented as four 25Gbps lanes (IEEE 802.3bj). Actually, 40G and 100G have already existed before the emergence of 25G. However, 25G Ethernet can provide a more convenient path to Ethernet speeds of 50G, 100G and beyond. With 25G, network operators are no longer to use 40G Ethernet (using four lanes of 10G) to migrate to 100G but using 4 lanes of 25G. The article introduces low-cost 25G AOC. What Is A 25G AOC? 25G AOC can be overcome the bandwidth limitation of traditional high-speed cable, and the 25G AOC can provide an ideal alternative solution for high-speed cable and short-distance SFP28 optical transceiver, and the signal is more complete and higher performance. It is widely used in high-speed, high-density, and low-power data center networks. The 25G AOC consists of optical transceiver devices at both ends a...

It is crucial that the ability of continuous innovation is the source of sustainable development for a company. Gigalight is able to provide cost-effective products keeping up the times for customers. Gigalight designs products that meet the increasing demands for network bandwidth, data storage and so on. As an innovator in optical communication, Gigalight delivers specialist service, dependability and performance at competitive prices. Gigalight has founded in 2006, is headquartered in Shenzhen, China. We have opened the Wuhan R&D Center in 2017. And we have representative offices in Russia, Taiwan. North America, Europe and India centers are in preparation. We cooperate with key channel distribution partners around the world. We mainly focus on Internet operators such as Baidu, Alibaba, China Unicom, China Telecom and other traditional operators as well as data communications equipment manufacturers in China. Our overseas markets center on telecommunication, Internet opera...