Performance Analysis of a 1550nm MQW VCSEL by Varying Injection Current

Abstract

Abstract

In this work, the performance of a 1550nm top emitting multi quantum well (MQW) vertical cavity surface emitting laser (VCSEL) has been obtained for the selected quaternary compound In_0.53Ga_0.47As_0.88P_0.12 quantum well material the peak material gain is obtained as 1425cm-1. The optical output power of 31.35dBm and the resonance frequency of 5.8GHz are obtained at 6.1mA of injection current. Further by increasing the injection current up to 12mA a maximum resonance frequency of 8.1GHz and the corresponding modulation bandwidth of 12.72GHz are obtained which makes the laser capable for transmitting data at high speed through optical fiber.

Index Terms: VCSEL, MQW, Relative Response