Edgecore Networks 400G QSFP-DD ZR Coherent Transceiver

The ECPO-QDDZR400G is a 400Gbps tunable dense wavelength division multiplexing (DWDM) DP-16QAM coherent transceiver. The QSFP-DD form factor device is hot pluggable and includes digital diagnostics monitoring (DDM) and control functions. This module enables interoperable and cost-effective solutions (OIF Type-1) for WDM transmission links up to 120 km. This transceiver employs coherent optic techniques and its key components include a nano-integrable tunable laser assembly (ITLA), a 7-nm coherent digital signal processing (DSP) chip, and a silicon-photonics-based coherent transmitter and receiver optical assembly (COSA). The transceiver supports one 400GAUI-8 (PAM4) Ethernet interface on the client side, which is fully compatible with an IEEE 802.3 400GAUI-8 C2M to OIF 400GE-ZR client/host system. The transceiver uses a single-carrier 60 GBaud coherent DP-16QAM modulation format on the line side. Concatenated FEC (C-FEC) enables a post-FEC error floor of <1e-15 with a pre-FEC BER threshold of 1.25e-2. The ...