29Jul, 2021
    GIGALIGHT Launches the Universal Technology of Submersible Optical Transceivers Available for Liquid-cooled Data Centers
    Shenzhen, China, July 30, 2021 − GIGALIGHT has announced its accomplishment of technical research on submersible optical transceivers today. The technological fruit can provide liquid-cooled data centers with high-reliability and high cost-performance optical interconnection solutions, and is applicable to all data center optical transceivers developed by GIGALIGHT.
    Liquid-cooled data center technology has been mature for a long time, but related applications have not yet been popularized. According to industry research, a data center’s PUE can be easily controlled to about 1.1 through the application of liquid cooling. If the power density of a single cabinet reaches 20KW, the liquid cooling technology can help save energy effectively.
    GIGALIGHT has conducted a number of researches on immersion cooling technology of optical transceivers and realized a series of advantages as follows:
    • Direct immersion liquid cooling method is available
    • Adopting optimized optical device sealing design (patent pending), which can effectively prevent the coolant from entering the optical circuit and prevent the solution from affecting the optical circuit
    • Passed 72 hours of 0.5 kg liquid pressurization test (to improve the fluidity of the coolant), showing its high reliability and long-term stability of data transmission
    • The temperature range of the liquid environment is 10-55℃
    • Working depth in liquid can reach deeper than 1m
    • Optical transceiver material selection meets the long-term compatibility requirements of liquid cooling
    The types of immersion cooling optical transceivers launched by GIGALIGHT this time are listed as follows:
    • 25G SFP28 SR 850nm, with Dual LC pigtail
    • 25G SFP28 LR 1310nm, with Dual LC pigtail
    • 100G QSFP28 SR4 850nm, with MPO pigtail
    • 100G QSFP28 PSM4 1310nm, with MPO pigtail
    It it worth mentioning that GIGLALIGHT will demonstrate the technological achievement at 2021 CIOE.

    About GIGALIGHT

    As the open optical network device explorer, GIGALIGHT integrates the design, manufacture and sales of active & passive optical devices and subsystems. The main products are optical transceivers, silicon photonics transceivers, liquid cooling transceivers, optical passive components, AOC & DAC, coherent optical modules and open DCI BOX subsystems. GIGALIGHT is a hardware solution provider of innovatively designed high-speed optical interconnection that focuses on data center, 5G carrier network, metro WDM transmission, UHD broadcast video and other application fields.
    20Jul, 2021
    GIGALIGHT Launches 100G QSFP28 ER4&eER4&ZR4 Modules
    Shenzhen, China, July 20, 2021 − GIGALIGHT today announced the launch of three 100G long-distance optical transceiver modules, OTU4 100G QSFP28 ER4&eER4&ZR4. These modules feature the industry’s leading performances, suitable for metropolitan area networks, 5G backhaul and data center interconnection (DCI).
    • Dual Rates: both 100GE and OTU4 rates are supported in the full temperature range
    • Ultra Long Reach: ER4 and eER4 up to 40km and 60km respectively without FEC (Zero BER); ZR4 up to 90km (5E-5 BER)
    • Low Power Consumption: 4.4W at 25℃ and less than 6W at 70℃
    figure 1: product
    The successful development of 100G QSFP28 ER4, 100G QSFP28 eER4 and 100G QSFP28 ZR4 modules demonstrates GIGALIGHT’s technical design advantages in the field of optical transceiver modules.
    The transmitter optical eye diagram, receiver sensitivity and optical fiber transmission parameters are as follows:
    figure 2：optical eye diagram
    ROSA CH 100G QSFP28 ER4 100G QSFP28 ZR4
    BER: 1E-12 BER: 5E-5
    SOA + PIN L0 -22.9 -29.2
    L1 -22.3 -28.7
    L2 -23 -28.9
    L3 -23.6 -30.1
    table: receiver sensitivity
    figure 3: optical fiber transmission parameters

    About GIGALIGHT

    As the open optical network device explorer, GIGALIGHT integrates the design, manufacture and sales of active & passive optical devices and subsystems. The main products are optical transceivers, silicon photonics transceivers, liquid cooling transceivers, optical passive components, AOC & DAC, coherent optical modules and open DCI BOX subsystems. GIGALIGHT is a hardware solution provider of innovatively designed high-speed optical interconnection that focuses on data center, 5G carrier network, metro WDM transmission, UHD broadcast video and other application fields.
    7Jul, 2021
    GIGALIGHT Launches the Industry’s First 200G QSFP56 ER4 Optical Transceiver for Metro DCI

    Shenzhen, China, July 8, 2021 − Under the context of 5G network, faster broadband speed, longer transmission distance and lower cost are the directions that data center and metro optical transmission network users heading up to. In order to meet market demand, GIGALIGHT recently released the industry’s first 200G QSFP56 ER4 optical transceiver. It adopts the mainstream 4-lane WDM optical engine architecture which integrates 4-channel refrigerated EML lasers and APD optical detectors, supports 200GE (4X53 Gbps) and OTN protocols, can perfectly adapt to 200G metro DCI long reach interconnection and 5G backhaul.


    Picture 1: GIGALIGHT 200G QSFP56 ER4GIGALIGHT’s 200G QSFP56 ER4 optical transceiver has superior evergy-saving performance, its power consumption keeps lower than 6.4W at room temperature and lower than 7.5W under 0℃, 25℃ and 75℃ test temperatures; it complies with QSFP56 MSA and IEEE 802.3cn 200GBASE ER4 Ethernet protocols; the OMA sensitivity of the receiver is excellent, which keeps lower than -17dBm; The product uses 50G PAM4 CDR based on DSP technology, shows excellent performance and fully meets the requirements of 40km long reach transmission.Below the performance testing results are shown:

    Picture 2: Optical Eye Diagram

    Picture 3 Over 40km Fiber FEC Margin under 70℃ test temperature

    Picture 4: 200G QSFP56 ER4 OMA
    Sensitivity@2.4E-4, PRBS31@26.5625GbpsSame as the role of 100G QSFP28 ER4 in 100G network transmission, the 200G QSFP56 ER4 is to be an economic alternative for coherent optical modules in 40km long reach transmission of 200G network to achieve cost reduction.

    GIGALIGHT complete 200G product portfolio:

    AOC Series

    • 200G QSFP-DD AOC
    • 200G QSFP56 AOC

    DAC Series

    • 200G QSFP56 PCC
    • 200G QSFP-DD PCC

    4-Lane WDM Optical Engine Architecture Series

    • 200G QSFP56 SR4 100m
    • 200G QSFP56 DR4 500m
    • 200G QSFP56 FR4 2km
    • 200G QSFP56 eFR4 10km
    • 200G QSFP56 LR4 10km/20km
    • 200G QSFP56 ER4 40km

    8-Lane WDM Optical Engine Architecture Series

    • 200G QSFP-DD SR8 100m
    • 200G QSFP-DD PSM8 2km/10km
    • 200G QSFP-DD LR8 10km/20km

    About GIGALIGHT

    As the open optical network device explorer, GIGALIGHT integrates the design, manufacture and sales of active & passive optical devices and subsystems. The main products are optical transceivers, silicon photonics transceivers, liquid cooling transceivers, optical passive components, AOC & DAC, coherent optical modules and open DCI BOX subsystems. GIGALIGHT is a hardware solution provider of innovatively designed high-speed optical interconnection that focuses on data center, 5G carrier network, metro WDM transmission, UHD broadcast video and other application fields.