1.5 µm wavelength, SCH-MQW InGaAsP/InP broadened-waveguidelaser diodes with low internal loss and high output power

Abstract

Reduction of internal loss and a twofold increase of differential efficiency have been obtained for 1.5 µm wavelength InGaAsP/InP separate confinement multiquantum well long cavity lasers with broadened waveguides. A record CW output power of 4.6 W has been demonstrated for a laser with a 200 µm aperture.