MATLAB simulink based test bed of QW LASER for optical communication system

Optical fiber is the medium in which signals can be transmitted and distributed with high bandwidth and very low losses. The main optical sources are LED and LASER. A semiconductor laser typically has spectral width about 20 to 100 times less compared to LED. The laser was the first device capable of amplifying light waves themselves. The emitted laser light is a spatially coherent, narrow low-divergence beam. There are lasers that emit a broad spectrum of light or emit different wavelengths of light simultaneously. Thus improving the efficiency of lasers is of great importance through the entire optoelectronics field, as laser based communication can support much higher data rates. In this work Quantum-Well LASER model based on the standard rate equations is being developed for analyzing and improving the efficiency using the MATLAB Simulink platform. The presented model can be incorporated for the simulation of the optimized optical system for future need of high data rate.