Voltage-controlled Q switching of InGaAs/InP single quantum well lasers

Abstract
The light emission characteristics of high performance InGaAs/InP single quantum well laser diodes with a monolithically integrated intracavity loss modulator have been investigated. We demonstrate efficient voltage‐controlled tuning of the lasing threshold current over more than one order of magnitude. In addition, active Q switching of 7 mW lasing light power with a change in electrical power of <30 μW is achieved.