High-power singlemode AlGaAs distributed Bragg reflector laser diodes operating at 856 nm

Abstract
Data are presented describing AlGaAs distributed Bragg reflector (DBR) laser diodes operating at 856 nm with single transverse and longitudinal mode behaviour beyond 270 mW CW. The threshold current of these lasers is 35 mA, with a differential quantum efficiency of 58%. Preliminary lifetest data are presented.