22Sep, 2025
    GIGALIGHT Launches Immersion Liquid-Cooled Optical Extenders to Empower the Liquid Cooling Revolution

    September 22, 2025, Shenzhen, China. – Since pioneering the industry’s first immersion liquid-cooled optical module in July 2021, GIGALIGHT has successfully built a complete portfolio of liquid-cooled optical interconnect products. This product line includes immersion liquid-cooled optical modules, AOCs, and liquid-cooled extenders, all designed for widespread deployment in 5G fronthaul and the latest AI computing scenarios, covering high-speed interconnect demands from 400G to 800G.

    New Product – Immersion Liquid-Cooled Optical Module Extender

    To further address the interconnect needs of high thermal density data centers, GIGALIGHT is introducing multiple liquid-cooled extenders:

    Technical Highlights:

    High-Speed Core: Supports extension up to 0.5m (0.3m for 800G), featuring GIGALIGHT’s patented “fish-shaped” design.

    Packaging Compatibility: Supports SFP112, QSFP28, QSFP-DD, OSFP, etc., covering 25G~800G and paving the way for 1.6T.

    Thermal Optimization: Integrated 1.5W silent fan inside the socket to enhance heat dissipation.

    Visual Monitoring: Equipped with indicator lights, ideal for frequent plug-and-play scenarios, effectively extending switch port lifespan.

    Product Portfolio:

    • 800G OSFP Liquid-Cooled Extender
    • 800G OSFP-RHS Liquid-Cooled Extender
    • 800G QSFP-DD Liquid-Cooled Extender
    • 400G QSFP-DD Liquid-Cooled Extender
    • 200G QSFP56 Liquid-Cooled Extender
    • 100G QSFP28 Liquid-Cooled Extender
    • 100G SFP112 Liquid-Cooled Extender

    Through continuous effort and technological innovation, GIGALIGHT has successfully overcome the multiple challenges of applying immersion liquid cooling to optoelectronic interconnect products. With extensive data accumulation and optimization, the R&D team has achieved a balance between stability, compatibility, and cost-effectiveness while ensuring high performance. These liquid-cooled products have already gained recognition in global markets.

    Looking ahead, GIGALIGHT will continue to lead in liquid cooling technology, providing efficient and eco-friendly cooling solutions for data centers and driving 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.

    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.