26Aug, 2024
    GIGALIGHT Upgrades Optical Transceiver Sealing Tech for Liquid Environments, Covering 10G-800G

    August 26, 2024. Shenzhen, China. – Since launching its immersion liquid-cooled optical transceiver product line in July 2021, GIGALIGHT has developed a comprehensive immersion liquid cooling product line, with product applications covering the 5G fronthaul product line and the latest 400G and 800G product lines for AI computing power applications.

    In response to the urgent demand for efficient cooling solutions in AI computing power data centers, Gigalight has developed highly reliable and cost-effective immersion liquid-cooled optical transceivers. They use direct immersion liquid cooling and optimized optical device sealing design to effectively prevent coolant from entering the optical path, and thereby eliminating the negative impact of liquids on the optical route.

    Gigalight’s immersion liquid-cooled interconnect products are mainly based on unique technology and superb signal integrity. The product design fully integrates material compatibility, mechanics, optics, pressurization, signal integrity (SI) simulations and comprehensive tests, The optimized sealing design of optical components and engines ensures that all products undergo rigorous 100% immersion testing before leaving the factory to verify their suitability and durability in both spray-type and fully immersed liquid-cooled environments.

    Currently, these products have been successfully deployed in a variety of cooling liquids, including 3M and domestic fluorinated liquids, silicone oil, and PAO, proving their broad applicability and outstanding compatibility. As of now, Gigalight has become one of the global leaders in the field of liquid cooling interconnection in the world. The immersion liquid cooling optical transceiver products are as follows:

    Data Center and 5G Fronthaul Immersion Optical Transceivers

    • 10G SFP+ SR 850nm VCSEL 300m(OM3)/400m(OM4)
    • 10G SFP+ LR 1310nm DML 10km
    • 25G SFP28 SR 850nm VCSEL 70m(OM3)/100m(OM4)
    • 25G SFP28 LR 1310nm DML 10km
    • 100G QSFP28 SR4 850nm VCSEL 70m(OM3)/100m(OM4)
    • 100G QSFP28 PSM4 1310nm DML 2km
    • 200G QSFP56 SR4 850nm VCSEL 70m(OM3)/100m(OM4)
    • 200G QSFP56 DR4 1310nm DML 500m
    • Immersed Liquid Cooling AOC：25G SFP28、100G QSFP28、200G QSFP56 AOC 850nm VCSEL 1~100m

    AI computing power immersion liquid-cooled optical transceiver (with MPO pigtail)

    • 400G QSFP112 SR4 850nm VCSEL 100m
    • 400G OSFP-RHS SR4 850nm VCSEL 100m
    • 800G OSFP finned-top SR8 850nm VCSEL 100m
    • 800G QSFP-DD SR8 850nm VCSEL 100m

    Through unremitting efforts and technological innovation, Gigalight has successfully overcome the multiple challenges of immersion liquid cooling technology in optoelectronic interconnect products. The data accumulation and optimization work of its R&D team has achieved a balance in stability, compatibility and cost-effectiveness while ensuring high performance. These liquid cooling products have gained global market recognition. Looking ahead, Gigalight will continue to be a leader in liquid cooling technology, providing efficient and environmentally friendly cooling solutions for data centers and promoting the green development of the AI ​​computing industry.

    About GIGALIGHT

    As an open optical networking explorer, Gigalight integrates the design, manufacturing, and sales of both active and passive optical devices and subsystems. The company’s product portfolio includes optical modules, silicon photonics modules, liquid-cooled modules, passive optical components, active optical cables, direct attach copper cables, coherent optical communication modules, and OPEN DCI BOX subsystems. Gigalight focuses on serving applications such as data centers, 5G transport networks, metropolitan WDM transmission, ultra-HD broadcast and video, and more. It stands as an innovative designer of high-speed optical interconnect hardware solutions.

    13Aug, 2024
     It doesn’t matter where you run, what matters is the right direction

    Optical communications field – the main application scenarios of silicon photonic chips

    With the rapid development of artificial intelligence (AI) and machine learning (ML) applications, the demand is for components to exchange data quickly and consume as little power as possible while maintaining high computing density, especially in terms of short-distance connections between XPUs (CPU, GPU, and memory).

    The AI computing era we are facing has the following characteristics:

    • Require faster network speeds – rapidly advancing towards 800G/1.6T
    • Require network products to have lower latency – improve computing efficiency, and increase the response speed and training speed of AI systems
    • Require network products to have lower power consumption – reduce energy consumption and develop sustainable AI computing power
    • Require higher reliability of system hardware and software – reduce failure rate, improve availability and user experience of AI services

    In this context, traditional pluggable optical modules are already “stretched” in terms of cost performance and power consumption, while highly integrated high-speed silicon photonic chips have become a more superior option due to their obvious advantages in potential price reduction and power consumption. The market’s choice is the best proof. Silicon photonic modules have achieved partial commercial success, and the application of higher-speed silicon photonic modules will also increase significantly.

    Silicon photonics is emerging as a promising technology compared to traditional methods. Silicon photonics can enable better communication between computing units such as CPUs and GPUs. Memory units can also be improved to increase the computing power and efficiency of AI applications.

    Gigalight Silicon Photonics Transceiver

    In response to the comprehensive goal of large-scale commercial use and technological advancement of 800G architecture in AI data centers at home and abroad, Gigalight launched a low-power 800G series silicon photonic modules based on 7nm DSP with a power consumption of 16W, including 800G DR8\DR8+, 800G 2×FR4/2×LR4 data center optical modules, supporting OSFP and QSFP-DD packaging forms, laying a solid delivery foundation for the company to become a pioneer in the field of silicon photonics.

    800G OSFP 2×FR4/ 2×LR4

    Gigalight’s 800G OSFP 2×FR4 and 800G OSFP 2×LR4 optical module ports use 2× Dual LC interfaces. The transmitter uses a monolithic integrated silicon photonic modulation chip solution, using 4 CWDM4 light sources. The integrated silicon photonic chip realizes 1-to-2 light source and CWDM wavelength division and MZ modulation. The receiver is 2 discrete free-space optical POSAs and adopts a low-power direct-drive 7nm DSP chip solution. The product has the advantages of low power consumption and high performance.

    800G DR8/DR8+/DR8++

    Gigalight’s 800G OSFP DR8/DR8+/DR8++ optical module port uses a 2×MPO-12/APC interface. The transmitter uses a monolithic integrated silicon photonic modulation chip solution, uses two CWL light sources, and implements 1-to-4 and MZ modulation of the light source in the integrated silicon photonic chip. The receiver uses two discrete FA solutions and a low-power direct-drive 7nm DSP chip solution. This product has the advantages of low power consumption and high performance.

    At the same time, Gigalight also provides 800G silicon photonic modules in QSFP-DD package to meet the needs of different users.

    800G QSFP-DD DR8/DR8+/DR8++

    • 1310nm CW+MZ+PIN
    • 500m/2km/10km
    • <14.5W/16W

    800G QSFP-DD 2×FR4/ 2×LR4

    • CWDM4 CW+MZ+PIN
    • 2km/10km
    • <16W

    400G DR4

    As early as 2023, Gigalight has mass-produced 400G OSFP-RHS DR4 and 400G QSFP112 DR4 silicon photonic modules. The addition of the latest low-power version 800G silicon photonic series has strongly promoted the company’s confidence in the growth of next-generation optical communication performance. Gigalight has substantially entered the research and development of silicon photonic chips and silicon photonic modules since 2018, and has completed the mass production or sample stage of at least 10 silicon photonic modules. Thanks to the strong collaboration of the global supply chain, more innovative and differentiated silicon photonic modules will be launched in Gigalight in the future.

    In the 800G AI computing center, the 800G silicon photonic module can branch two 400G optical modules through single-mode optical fiber to achieve a smooth upgrade of the 400G network.