80 °C CW Operation of GaInAsP/InP Membrane BH-DFB Laser with Air-Bridge Structure

Abstract

Membrane BH-DFB lasers emitting in 1500-1600 nm wavelength are realized with an air-bridge structure, and continuous wave operations up to moderately high temperature (80degC) were achieved under an optical pumping. The thermal resistance was estimated to be 11 K/mW, which is half that of membrane BH-DFB lasers fabricated by bonding on BCB coated InP substrate.