30Aug, 2021
    GIGALIGHT Returns to the Competition Track of Data Center Passive DAC
    Shenzhen, China, August 30, 2021 − GIGALIGHT’s today launched an 8-channel 400G QSFP56-DD passive direct-attached cable (PCC) assembly that supports 3m transmission, marking its successful return to the technology track of DAC products.
    The newly developed 400G QSFP56-DD PCC assembly can reach a maximum transmission distance of 3m, the insertion loss is better than 17.16dB@13.28GHz, the Pre-FEC bit error ration is better than average 1E-8, and the Post -FEC bit error ration is better than 1E-14 level, showing superior consistency of each channel.
    (Partial testing diagram of 400G DACs)
    Case A CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
    PreBER 1.02E-08 4.79E-08 3.65E-08 9.09E-09 2.11E-08 8.39E-09 7.56E-08 5.03E-07
    PostBER 0 0 0 0 0 0 0 0
    Margin 71 43 43 43 57 71 57 43
    Table ：400G QSFP56-DD 3m DAC Case A
    Case B CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
    PreBER 2.26E-09 9.72E-09 2.88E-09 1.30E-08 1.82E-08 2.68E-09 1.99E-08 2.72E-07
    PostBER 0 0 0 0 0 0 0 0
    Margin 71 71 57 43 71 71 71 57
    Table 2：400G QSFP56-DD 3m DAC Case B
    GIGALIGHT has started the R&D and production of passive DAC assemblies since 2011 and gained a large amount of customers of Passive DAC products worldwide. Through 10 years of technological innovation and practice, the company has completely solved the compliance problem of COM computing software & hardware and protocols, and has endowed high-density DACs with a set of efficient and reliable manufacturability procedures.
    Over the years of R & D, GIGALIGHT has a complete family of DAC and its branch products:
    Product name Protocol Maximum insertion loss Transmission distance
    10G SFP+ PCC IEEE 802.3ae 17.04dB@5.16GHz 7m
    25G SFP28 PCC IEEE 802.3by 22.48dB@12.89GHz 5m
    40G QSFP PCC IEEE 802.3ba 17.04dB@5.16GHz 5m
    100G QSFP28 PCC IEEE 802.3bj 22.48dB@12.89GHz 5m
    200G QSFP56 PCC IEEE 802.3cd 17.16dB@13.26GHz 3m
    400G QSFP-DD PCC IEEE 802.3cd 17.16dB@13.26GHz 3m
    Table 3: GIGALIGHT DAC and branch product family

    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.
    5Aug, 2021
    GIGALIGHT will Share the Latest R&D Results of 400G Silicon Optical Transceivers at CIOE 2021
    Shenzhen, China, August 5, 2021 − Invited by the CIOE conference, GIGALIGHT will share the technology exploration fruits of silicon optical transceivers at the Optical Transceivers & Silicon Photonics Forum of CIOE 2021 on September 2 and will demonstrate a 400G QSFP DD DR4 silicon optical transceiver at GIGALIGHT’s booth at CIOE exhibit.
    It is almost a definite situation that Silicon Photonics 400G transceivers will enter in the Internet industry. Since 2020, several manufacturers have announced their successful research and development of silicon optical transceivers. GIGALIGHT has tested many silicon optical transceiver products, including its self-developed 400G DR4 and items from the competing brands, the testing results are all good. Meanwhile, GIGALIGHT also compared the results with that of the the 400G DR4 optical transceiver based on EML TOSA synchronously, those study data will be all opened to public on CIOE Optical Transceivers & Silicon Photonics Forum.
    As early as 2016, GIGALIGHT cooperated with CFOL to promote the silicon optical business, and also undertook the major project of the Shenzhen Municipal Government focusing on the development of silicon optical chips. However, the project process was affected by the patent issue with US later. GIGALIGHT didn’t stop its step to explore the new technology due to the incident, but grows to a more powerful and mature enterprise under great pressure. Now, the development of Silicon Photonics is just unfolding, and the brighter future needs the joint effort of all industry participants!
    GIGALIGHT will release a series of silicon optical products that can be mass-produced after 2022 successively, including:
    • 100G QSFP28 DR1
    • 400G QSFP DD DR4 lite /DR4/DR4+
    • 800G QSFP DD DR8
    • 800G OSFP DR8

    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.