Credo Technology Group Holding Ltd. and Applied Optoelectronics, Inc. announced the availability of two new multimode designs including a 400G QSFP-DD and an 800G OSFP. The 400G design is available as either an Active Optical Cable (AOC) or 400GBASE-SR8 transceiver based on the Credo Seagull 452, an 8 x 50Gbps PAM4 DSP with integrated VCSEL drivers. The 800G design is available as either an Active Optical Cable (AOC) or 800GBASE-SR8 transceiver based on the Credo Dove 800, an 8 x 100Gbps PAM4 DSP.

Both designs feature industry leading performance and lower power consumption compared to previous generation solutions. The 400G and 800G designs from AOI will be showcased by Credo in booth #3601 as part of a live demonstration at the 2024 Optical Fiber Communications Conference and Exhibition (OFC) in San Diego, California from March 26 to 28. Samples of the AOI 400G QSFP-DD AOC are available for immediate shipment.

The Seagull 452 DSP is an 8 x 50Gbps PAM4 DSP with integrated VCSEL drivers. It boasts exceptionally low-power consumption while incorporating Credo?s fourth generation DSP technology on both the electrical host and optical interfaces. This allows for extended host side reach supporting seamless operation over short and long PCB channels beyond the VSR specifications eliminating any manual tuning.

On the optical side, the latest performance enhancements allow customers to relax the optical component specifications, thereby increasing manufacturing yields and lowering the overall transceiver cost. When paired with the Credo Teal 200 4 x 50Gbps TIA, Seagull 452 enables a complete 400G AOC or 400G SR8 transceiver solution offering enhanced performance, exceptionally low power, and optimized cost.