Power-Scaling of Diamond Microlensed Microchip Semiconductor Disk Lasers

Laurand, N. and Lee, C.L. and Gu, E. and Calvez, S. and Dawson, M.D. (2009) Power-Scaling of Diamond Microlensed Microchip Semiconductor Disk Lasers. IEEE Photonics Technology Letters, 21 (3). pp. 152-154. ISSN 1041-1135 (http://dx.doi.org/10.1109/LPT.2008.2009129)

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Abstract

Power-scaling of an optically pumped 1040-nm microlensed microchip semiconductor disk laser is reported, where the monolithic cavity and lens structure is embodied in single-crystal diamond. Low threshold and circularly symmetric single-transverse-mode emission (M2<1.2) at output power up to 180 mW is obtained for a mode-matched device having an integrated output coupler of 9.4-mm radius of curvature and a 300-mum aperture. Multitransverse mode operation above 1 W is also presented.