Figure 1. Schematic of Optical Transmission system (a) Transmitter, (b) Receiver

From

A Technical Review on Semiconductor Optical Amplifiers (SOAs) and their Applications

Gourav Misra, Arun Agarwal, Saurabh Narendra Mehta

American Journal of Electrical and Electronic Engineering. 2024, 12(2), 8-13 doi:10.12691/ajeee-12-1-2