28 February 2014 Increased efficiency of Er:YAG lasers at 1645 nm using narrow bandwidth diode lasers and dual-wavelength resonant pumping
Author Affiliations +
Abstract
We demonstrate cw and Q-switched operation of Er:YAG laser systems emitting eye-safe radiation at 1645 nm. High brightness, narrow bandwidth diode laser modules at 1532 nm are used for resonant pumping, providing an absorption efficiency of 96%. Comparison with broadband diode pumping at 1455 nm shows an increase of the pumping efficiency by a factor of 2.5, leading to an optical efficiency of more than 25% in cw and 10 % in Q-switched mode under cw pumping. In addition, dual-wavelength resonant pumping of the Er:YAG laser is investigated.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Haro Fritsche, Oliver Lux, Casey Schuett, Stefan W. Heinemann, Marcus Dziedzina, Wolfgang Gries, Hans J. Eichler, "Increased efficiency of Er:YAG lasers at 1645 nm using narrow bandwidth diode lasers and dual-wavelength resonant pumping", Proc. SPIE 8959, Solid State Lasers XXIII: Technology and Devices, 895907 (28 February 2014); doi: 10.1117/12.2040427; https://doi.org/10.1117/12.2040427
PROCEEDINGS
9 PAGES


SHARE
RELATED CONTENT


Back to Top