4.5 W Hybrid Integrated Master-Oscillator Power-Amplifier at 976 nm on Micro-Optical Bench

Published in:
Proc. SPIE, vol. 7221, no. 72210W (2009).
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Abstract:
Compact high power laser light sources emitting a single frequency with diffraction limited beams in continuouswave (CW) operation are required for many applications including frequency conversation. We present a hybrid integrated package consisting of a distributed feedback ridge-waveguidemaster-oscillatorpower- amplifier mounted on an AlN micro-optical bench with a CW output power of 4.5 W at 976 nm having a beam propagation ratio of M² < 2 (including second order moments). The longitudinal mode emission has a linewidth of λ < 10 pm. Due to thermal decoupling the wavelength shift is nearly independent of the amplifier pump-current.

Keywords:
Hybrid integration, laser system, MOPA

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