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Proceedings Paper

LD pumped high efficiency, high power Tm:YLF laser with adhesive-free bond laser composites
Author(s): Xiaodong Mu; Helmuth Meissner; Huai-Chuan Lee
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Paper Abstract

Adhesive-free bonded (AFB®) un-doped end-capped and segmentally bonded Tm:YLF laser composites have been investigated for high efficiency LD-pumped laser operations. With a fiber coupled 792-nm diode laser as pump source and a single-end pump arrangement, an optical-to-optical laser efficiency of 48.3% (quantum efficiency of 116%) and a slope efficiency of 55% (quantum efficiency of 132%) have been measured at the laser output wavelength of 1.908 μm. A maximum laser output power up to 29 W has been also achieved before the thermal stress fracture limit. The high laser efficiencies and output power can be attributed to the two-for-one cross-relaxation process and the efficient thermal management of the AFB laser composites.

Paper Details

Date Published: 15 February 2011
PDF: 5 pages
Proc. SPIE 7912, Solid State Lasers XX: Technology and Devices, 79121B (15 February 2011); doi: 10.1117/12.873595
Show Author Affiliations
Xiaodong Mu, Onyx Optics Inc. (United States)
Helmuth Meissner, Onyx Optics Inc. (United States)
Huai-Chuan Lee, Onyx Optics Inc. (United States)

Published in SPIE Proceedings Vol. 7912:
Solid State Lasers XX: Technology and Devices
W. Andrew Clarkson; Norman Hodgson; Ramesh Shori, Editor(s)

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