100G QSFP28 DWDM1
    28Apr, 2025
    GIGALIGHT Unveils 100G QSFP28 DWDM1 O-BAND/200GHz Silicon Photonics Transceiver for 30km Links

    April 28, 2025, Shenzhen, China. – GIGALIGHT, a global leading provider of optical communication technologies, has unveiled its 100G QSFP28 DWDM1 optical transceiver based on the O-Band (Original Band), further expanding its high-speed optical interconnection product portfolio. This product encompasses 16 wavelength bands with a 200GHz frequency spacing, making it suitable for a variety of short-distance, low-cost DWDM transmission scenarios.

    Technical Highlights:

    • High-precision O-Band Wavelength Division Multiplexing (WDM)
    • 100Gbps Single-Channel Rate: Supports PAM4 modulation and is compatible with IEEE/ITU standards, ensuring seamless integration with existing networks.
    • Zero Dispersion Advantage: The O-Band inherently exhibits low dispersion in single-mode fibers, minimizing signal distortion in medium-to-short-distance transmissions without the need for additional compensation.
    • Low Power Consumption Design: Consumes less than 3.5W, a 20% reduction compared to similar products, contributing to the construction of green data centers.

    Application Scenarios: Flexible Adaptation for High-Density Networks

    This product can be widely applied in:

    • Metropolitan Access and Aggregation Networks: Provides cost-effective solutions for 5G front-haul and enterprise private lines.
    • Data Center Interconnection (DCI): Supports medium-to-short-distance transmissions within 80km, meeting the demands of distributed computing power.
    • Open Optical Networks: Decouples from white-box equipment, enhancing network deployment flexibility.

    Data Center 10km Interconnection (without SOA Amplifier)

    Data Center 30km Interconnection (with SOA Amplifier)

    Metropolitan Access and Aggregation Application Scenario (30km with SOA)

    Industry Value: Filling the Market Gap for O-Band High-Speed Modules

    The Product Director of GIGALIGHT stated, “The O-Band offers unique advantages in metropolitan scenarios due to its dispersion characteristics. The newly launched DWDM1 module fills the market’s urgent need for cost-effective, medium-distance 100G solutions, particularly suitable for operator edge network upgrades.” According to Dell’Oro’s forecast, the global DWDM optical transceiver market is expected to exceed $5 billion by 2025, and GIGALIGHT’s O-Band strategy will strengthen its competitiveness in niche markets.

    Future Plans: GIGALIGHT will continue to optimize its O/C/L multi-band product matrix and accelerate the commercial deployment of 400G/800G DWDM technologies.

    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.

    17Jul, 2024
    GIGALIGHT Releases Color X O-BAND 100G QSFP28 DWDM1 Silicon Optical Transceivers

    July 17, 2024. Shenzhen, China. – In response to client application requirements, GIGALIGHT now launches the new Color X Series 100G QSFP28 DWDM1 O-BAND silicon optical transceivers. Previously, GIGALIGHT launched the Color ZR+ 100G QSFP28 PSM DWDM4 optical transceivers based on 4x25G NRZ four-carrier DWDM solution, which have been widely used in the client sides and has been highly recognized by customers.

    Now launching the new Color X Series 100G QSFP28 DWDM1 O-BAND silicon optical transceivers based on 150Ghz O-BAND DWDM Grid, single-wave 100G PAM4 silicon optical modulation technology platform. Duplex LC interface is adopted to provide 16 wavelengths for selection, achieve 1600G total bandwidth on SMF dual-fiber, meet DCI interconnection applications, and can achieve 30km transmission under the support of SOA optical amplifier (10km transmission without SOA), without the need for dispersion compensation DCM module, the power consumption of this optical transceiver is less than 3.5W. Compared with coherent DWDM, this scheme has the advantages of low cost, low delay, low power consumption and easy deployment.

    Color X 100G QSFP28 DWDM1 O-BAND silicon optical transceivers integrates the latest technology DSP chip to realize 4x25G NRZ to 100G PAM4 and monolithic integrated silicon optical MZ modulation chip, CWL laser achieves 150Ghz O-BAND DWDM wavelength optional.

    The product has the advantages of low power consumption and high performance, and the key parameters are as follows:

    • TDECQ per channel is less than 2.4dB, which is better than the protocol specification <3.4dB;
    • Rx Sens(OMA) sensitivity is better than -9dBm@2.4e-4 Pre-FEC 53GBd PAM4, better than the protocol specification <-6.1dBm;
    • The maximum power consumption of the optical transceiver is less than 3.5W.

    GIGALIGHT focuses on integrating silicon photonics technology with traditional technology advantages to create non-coherent DWDM transmission solutions for 100G DCI networks. The core of this strategy focuses on achieving low-cost, cost-effective deployment, while relying on its innovative technical solutions to ensure that it is unique in the market and leads the industry development.

    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.