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lt is a high performance QSFP-DD transceiver module for 400 Giga bits Ethernet DP-16 QAM modulated data links over two single mode fibres. The maximum reach is up to 120km without inline chromatic dispersion compensation. The narrow line width tunable laser is shared between the transmitter and receiver sections (LO). A tapped monitor diode is used to control the optical output power.
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