Microlensed microchip VECSEL | Zendy

N. Laurand | Zendy; Chee-Leong Lee | Zendy; Erdan Gu | Zendy; Jennifer E. Hastie | Zendy; S. Calvez | Zendy; Martin D. Dawson | Zendy

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Microlensed microchip VECSEL

Author(s) -

N. Laurand,

Chee-Leong Lee,

Erdan Gu,

Jennifer E. Hastie,

S. Calvez,

Martin D. Dawson

Publication year - 2007

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.15.009341

Subject(s) - optics , microlens , materials science , laser , optoelectronics , semiconductor laser theory , aperture (computer memory) , lens (geology) , physics , acoustics

We report a 1.055-mum microchip VECSEL array which uses a microlens-patterned diamond both as a heatspreader and as an array of concave output mirrors. This configuration, which is suitable for laser array operation, is here exploited to perform a systematic study of a set of microchip lasers with the same semiconductor structure but different cavity properties. The transverse mode selection of individual VECSELs is found to depend on the mode-matching conditions and on the microlens aperture size. Mode-matched single-device emission in the fundamental mode (M2~1.1) with pump-limited output power of 70 mW is demonstrated.

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