Surface-emitting second order distributed Bragg reflector laser with dynamic wavelength stabilization and far-field angle of 0.25°

Abstract

Operation of a dynamically stabilized surface-emitting AlGaAs channeled-substrate-planar large-optical-cavity distributed Bragg reflector laser with a 0.25°×8° far-field pattern is reported. With 50% duty cycle and 50 ns–2 ms pulse length operation at room temperature, thresholds as low as 150 mA were obtained. No side modes were observed to 40 dB below the principal wavelength intensity under 100% modulation depth operation.