Powered by Greylock and Delphi DSP ASICs, and silicon photonic integrated circuits (PICs) for an optimized co-packaged design with 3D Siliconization Supports an expansive list of interoperability modes from Optical Internetworking Forum (OIF), OpenZR+ MSA, and OpenROADM MSA. Powered by Greylock and Delphi DSP ASICs, and silicon photonic integrated circuits (PICs) for an optimized co-packaged design with 3D Siliconization Supports an expansive list of interoperability modes from Optical Internetworking Forum (OIF), OpenZR+ MSA, and OpenROADM MSA. Quad Small Form-factor Pluggable Double Density (QSFP-DD) solution that fits into high-density switch and router client ports for optical interconnect links Powered by Greylock and Delphi DSP ASICs, and silicon photonic integrated circuits (PICs) for an optimized co-packaged design with 3D. The Cisco ® family of QSFP-DD modules provide the industry's highest bandwidth density while leveraging the backward compatibility to lower-speed QSFP pluggable modules and cables. The Cisco 400GBASE Quad Small Form-Factor Pluggable Double Density (QSFP-DD) portfolio offers customers a wide variety. QSFP-DD Packaged Optical Module by Application (Data Center, Cloud Computing, Large Scale Network, Others), by Types (200G, 400G, 800G, Others), by North America (United States, Canada, Mexico), by South America (Brazil, Argentina, Rest of South America), by Europe (United Kingdom, Germany, France. Compared to traditional direct detection, coherent detection provides significant advantages: High Sensitivity: Capable of detecting extremely weak optical signals, enhancing system reception sensitivity. High Spectral Efficiency: Supports advanced modulation formats (e., QPSK, 16QAM, 64QAM). By adding photonics capability to world-leading silicon manufacturing, Intel® is developing a new class of high-speed optical connectivity products. Intel® Silicon Photonics combines the manufacturing scale and capability of silicon with the power of light onto a single chip. The 400G QSFP-DD ZR+ HO is designed for 100G/200G long haul and 300G/400G Metro IP over DWDM applications.