QSFP-DD 400G Tun. DWDM 0dBm Open ZR+ 0-70°C

AQE-78206 is a high-performance QSFP-DD transceiver module for up to 400 Gigabit Ethernet DP-16QAM modulated data links over two single mode fibres. The maximum reach is more than 600km without inline chromatic dispersion compensation. The narrow linewidth tunable laser is shared between the transmitter and receiver sections (LO). A tapped monitor diode is used to control the optical output power. The transceiver is compliant with the QSFP-DD Multisource Agreement (MSA) and hot pluggable.

The receiver module is performing the coherent intradyne reception and O/E conversion of the incoming optical signal after being mixed with a local optical oscillator. Four pairs of balanced photo detectors perform quadratic detection and produce I and Q components of the two orthogonal polarizations (H and V).