Receiver sensitivity stands as a critical parameter impacting an optical transceiver's functionality. It denotes a module's capability to function in challenging environments and aids network operators in determining the system's maximum reach or link margin. Receiver sensitivity is defined by how. In optical communication systems, sensitivity is a measure of how weak an input signal can get before the bit-error ratio (BER) exceeds some specified number. The standards body governing the application sets this specified BER.
