Bit Error Rate and Receiver Sensitivity

This lecture covers the concepts of bit error rate (BER) and receiver sensitivity in optical communication systems. It explains how BER is the probability of incorrect bit identification due to noise or distortion, with a target requirement of BER < 10^-9. The lecture also delves into receiver sensitivity, which is the minimum received power needed to achieve a specific BER. Topics include probability density functions, decision functions, threshold tests, and error probability calculations.