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Proceedings Paper

Thulium fibre laser pumped mid-IR laser
Author(s): Ian Elder
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Paper Abstract

A simple scheme for efficient generation of mid-IR laser radiation is reported. Using a 50 W thulium fibre laser to pump a Q-switched Ho:YAG laser 27.3 W of average output power is achieved with an M2 of 1.5 (optical to optical conversion efficiency 65%) at a wavelength of 2.1 μm. The holmium laser is used to pump a ZGP OPO generating 12.6 W of average output power in the 3-5 μm waveband (optical to optical conversion efficiency 52%) with a worst case M2 of 2.7. These efficiencies were maintained at 25% and 50% duty cycle operation.

Paper Details

Date Published: 2 October 2008
PDF: 11 pages
Proc. SPIE 7115, Technologies for Optical Countermeasures V, 711505 (2 October 2008); doi: 10.1117/12.803643
Show Author Affiliations
Ian Elder, SELEX Galileo (United Kingdom)

Published in SPIE Proceedings Vol. 7115:
Technologies for Optical Countermeasures V
David H. Titterton; Mark A. Richardson, Editor(s)

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