7. (a) With the aid of simple diagrams, describe the basic principle of coherent optical detection. [7] (b) Explain why
Posted: Fri Jan 21, 2022 8:39 am
7. (a) With the aid of simple diagrams, describe the basic principle of coherent optical detection. [7] (b) Explain why coherent optical detection can improve receiver sensitivity and achieve much higher capacity in the same bandwidth compared to intensity modulation and direct detection. [16]