Characteristics and reliability of high-power InGaAs/AlGaAs laser diodes with decoupled confinement heterostructure

摘要

Abstract: In order to overcome catastrophic optical damage, decoupled confinement heterostructure (DCH) featuring a broadened waveguide and thin carrier block layers have been developed. Due to decoupling of carrier and optical confinement, a DCH laser can be designed more flexibly than a conventional separated confinement heterostructure laser, i.e., laser diodes can be designed with a variety of gain coupling factor $Gamma$-$PRP$/, quantum-well number N$-W$/, keeping the beam divergence angle constant.!9