InGaAs-GaAs-AlGaAs strained-layer distributed feedback ridge waveguide quantum well heterostructure laser array

摘要

Strained-layer DFB ridge waveguide laser arrays, requiring only a single MOCVD growth step, exhibit phase-locked emission in the highest order supermode. Uncoated 14 element arrays with CW threshold current of 110 mA and eta /sub ext/=36% emit in a single longitudinal mode to above 190 mA. Peak pulsed and CW output powers are 400 mW and 53 mW, respectively.