Test Report of New OSFP Optical Module

The upgraded OSFP1600 and OSFP-XD optical modules demonstrate high-speed performance up to 1.6 Tb/s with validated electrical, thermal, and optical characteristics, maintaining backward compatibility with OSFP800.Overview of Upgraded OSFP ModulesThe OSFP MSA has developed OSFP1600 and OSFP-XD modules to support next-generation data center applications. OSFP1600 supports 8x200 Gb/s host interfaces, achieving 1.6 Tb/s throughput, while OSFP-XD is designed to address thermal challenges and high electrical performance requirements for future pluggable optics. Both modules maintain mechanical reliability and backward compatibility with OSFP800, and the integrated heatsink provides over 30 W thermal performance, suitable for high-density 1600G optics deployments .Electrical and Optical Performance ValidationExperimental tests on OSFP modules, including 800G-LR4 OSFP modules, provide insights into the upgraded module performance:Chromatic Dispersion (CD) Tolerance: Experiments with commercial 800G-LR4 OSFP modules show a CD tolerance of approximately 28 ps/nm with FFE equalization, consistent with simulation results. Receiver sensitivity was measured at pre-FEC BER = 4.85E-3, with input power scanned from -5 dBm to -9 dBm .DGD Tolerance and Signal Integrity: Test validation using SSPRQ patterns confirmed the DGD tolerance and supported the 800G-LR4 baseline, including transmitter power, extinction ratio, OMA, TECQ, and TDECQ measurements .Breakout and High-Speed Support: OSFP1600 supports breakout applications and maintains electrical performance at 8x200 Gb/s, pushing the limits of signal integrity while ensuring backward compatibility .Thermal and Mechanical ConsiderationsThe upgraded modules integrate heatsinks to manage thermal dissipation efficiently. Proper installation requires adequate airflow and spacing in the data center chassis, grounding for electromagnetic compatibility, and adherence to cabinet specifications to ensure optimal performance . The OSFP-XD design specifically addresses thermal challenges for high-density deployments, ensuring reliable operation at elevated power levels.EMI and System-Level ComplianceElectromagnetic interference (EMI) testing is critical for high-speed optical modules. OSFP modules are evaluated using open hardware/software reference platforms to measure EMI reproducibly at data rates up to 800 Gbit/s. This ensures that modules meet system-level EMI requirements when deployed in large-scale switches or routers .SummaryThe upgraded OSFP1600 and OSFP-XD modules have been validated through experimental and simulation-based testing for electrical, optical, and thermal performance. Key highlights include:1.6 Tb/s throughput with 8x200 Gb/s host interfacesCD tolerance ~28 ps/nm with FFE equalizationBackward compatibility with OSFP800Integrated heatsink supporting >30 W thermal dissipationEMI evaluation for system-level deploymentSupport for breakout applications and high-density data center environments These results indicate that the upgraded OSFP modules are ready for next-generation high-speed optical networks, providing reliable performance, thermal management, and compliance with industry standards .