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100G OTU4 BiDi QSFP28
C-LIGHT has independently developed the 100G OTU4 BiDi single-fiber bidirectional QSFP28 optical module, which supports data transmission rates of 112Gb/s and 100Gb/s, and supports a variety of single-fiber bidirectional transmission distances, mainly including 2km, 10km, 20km, 40km, and 80km. Its communication protocol complies with IEEE 802.3bm; the interface protocol complies with SFF-8636/8665; and the packaging protocol complies with QSFP28 MSA HW. This optical module is widely used in data center interconnection, long-distance optical fiber communication, telecommunication networks, medical fields, and other scenarios with high bandwidth requirements. The 100G OTU4 BiDi QSFP28 optical module is compatible with more than 100 switch brands, demonstrating C-LIGHT is 15 years of technical accumulation in the field of optical communications. We provide spot supply and customization services, and are committed to providing customers with original after-sales support to help reduce operating costs.
  • 3-year warranty Long term maintenance
  • Technical Support Professional free technical guidance
  • 100% detection Each module is 100% tested
  • Spot stock Always in stock, short delivery time
  • Product Details
    Form Factor Part No. Fiber Type Data Rate Wavelength Distance Connector Case Temperature Note
    QSFP28 BIDI CLOTU4QBD80-A SMF 100G/112G 4CH LAN WDM 80km LC Com./Ind.  
    QSFP28 BIDI CLOTU4QBD80-B SMF 100G/112G 4CH LAN WDM 80km LC Com./Ind.  
    QSFP28 BIDI CLOTU4QBD40-A SMF 100G/112G 4CH LAN WDM 40km LC Com./Ind.  
    QSFP28 BIDI CLOTU4QBD40-B SMF 100G/112G 4CH LAN WDM 40km LC Com./Ind.  

    100G OTU4 BiDi QSFP28 is an optical transceiver module designed for high-speed network interconnects. It employs Bi-Directional (BiDi) technology, enabling full-duplex 100Gbps communication over a single strand of single-mode fiber. Utilizing wavelength-division multiplexing, it transmits at 1270nm and receives at 1330nm on one end, thereby saving 50% of fiber resources and significantly alleviating pressure on fiber infrastructure. 

    100G OTU4 BiDi QSFP28 strictly complies with the telecom-grade OTU4 protocol standard, supporting a line rate of approximately 111.8 Gbps, which ensures seamless integration into optical transport networks for efficient and reliable long-distance transmission. With the mainstream QSFP28 form factor, it offers a compact design and low power consumption, providing a high-density port solution. Consequently, this module is primarily deployed in data center interconnects, metropolitan area networks, and telecommunication aggregation layers.

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    ●100% of products pass initial test, final test and factory inspection.

    ●3-step quality control management process.

    ●100% complete implementation of customer order quality requirements.

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    Quality certification

    Please contact us to download the certification certificate.

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    Please Note: Installing a third party transceiver does not void your network equipment warranty. Network equipment manufacturers all have guidelines stating that warranty support on their products will not be affected.


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