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Power-Scaling of Diamond Microlensed Microchip Semiconductor Disk Lasers

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5 Author(s)
Laurand, N. ; Inst. of Photonics, Univ. of Strathclyde, Glasgow ; Lee, C.-L. ; Gu, E. ; Calvez, S.
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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.

Published in:

Photonics Technology Letters, IEEE  (Volume:21 ,  Issue: 3 )