This guide provides a clear overview of 400G ZR QSFP-DD standards, specifications, and selection criteria for coherent pluggable optics in metro and long-haul networks. QSFP-DD ZR Coherent Optics presents a sea of change in the field of optical transportation architecture. Cisco QSFP-DD and OSFP 800G ZR/ZR+ digital coherent optics modules enable 800G traffic over amplified Dense Wavelength-Division Multiplexing (DWDM) links up to 120 km for 800ZR and over 1000 km for 800G ZR+. They then trialed high-power ZR+ variants. During deployment, however, they discovered that the router vendor did not support the additional. 100Gbps Ethernet, OTN and OpenROADM applications. The transceiver is intended for use in interconnect applications between data centers with switches, routers etc. having QSFP-DD supp ain (NCG) of 11. TQD026-TUNC-SO also supports the OpenROADM 2. 0 with the media. Today, Acacia, now part of Cisco, is adding to its award-winning, comprehensive portfolio of 400G coherent pluggable solutions, based on its Greylock 7nm Digital Signal Processor (DSP), with the new Bright 400ZR+ and ER1 400G pluggable coherent optical modules.
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