High-power, highly-reliable operation of InGaAs/InGaAsP0.98 µm lasers with an exponential-shaped flared stripe

Abstract
A 0.98 µm InGaAs/InGaAsP/GaAs strained quantum-well laser with an exponential-shaped-flared stripe has been developed. Its maximum output power is 40 – 60% higher than that of ordinary straight-stripe lasers for the same kink-occurrence output power. Testing at 150 mW showed stable operation with an estimated lifetime of >200000 h.