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Proceedings Paper

Thermal lensing in diamond at 1 kW Raman laser power (Conference Presentation)

Paper Abstract

Diamond Raman lasers are an emerging high-power laser technology offering kW-level beam powers with high brightness. Here we report experimental observation of a diamond thermal lens at output powers up to 1.1 kW in a quasi-steady-state regime. It is found that a thermal lens of up 16 diopters is induced, which causes the beam quality to evolve over the investigated power range. The results aid design at higher power and clarify conditions under which beam quality degradation is expected when scaling output power.

Paper Details

Date Published: 10 March 2020
Proc. SPIE 11259, Solid State Lasers XXIX: Technology and Devices, 1125916 (10 March 2020); doi: 10.1117/12.2546704
Show Author Affiliations
Robert J. Williams, Macquarie Univ. (Australia)
Sergei Antipov, Macquarie Univ. (Australia)
Ondrej Kitzler, Macquarie Univ. (Australia)
David J. Spence, Macquarie Univ. (Australia)
Rich P. Mildren, Macquarie Univ. (Australia)

Published in SPIE Proceedings Vol. 11259:
Solid State Lasers XXIX: Technology and Devices
W. Andrew Clarkson; Ramesh K. Shori, Editor(s)

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