96 mW longitudinal single mode red-emitting distributed Bragg reflector ridge waveguide laser with tenth order surface gratings

Published in:
Opt. Lett., vol. 37, no 9, pp. 1532-1534 (2012).
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Abstract:
Red-emitting ridge waveguide lasers with integrated tenth order surface distributed Bragg reflector gratings were developed. The grating was implemented by the use of a BCl₃-Ar-plasma, while the shape of the grating trench was controlled by additional He-backside cooling of the wafer. The devices exhibit longitudinal single mode operation up to 96 mW at 635.3 nm with a side mode suppression ratio of 18 dB and a good beam quality of M² < 3. The spectrum is free of mode hops for a span of more than 55 pm.

OCIS codes:
140.2020, 140.7300, 230.1480

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