title: Microlensed microchip VECSEL.
abstract: 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.
authors: Nicolas
authors: N
authors: Laurand
authors: C L
authors: CL
authors: Lee
authors: E
authors: E
authors: Gu
authors: J E
authors: JE
authors: Hastie
authors: Stephane
authors: S
authors: Calvez
authors: Martin D
authors: MD
authors: Dawson