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Proceedings Paper

Multi-wavelength resonant pumping of Er:YAG lasers for energy efficient trace gas detection systems
Author(s): Haro Fritsche; Oliver Lux; Casey Schuett; Martin Gaertner; Ronny Juhre; Andreas Grohe; Wolfgang Gries; Hans J. Eichler
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Paper Abstract

The multiplicity of narrow absorption lines of erbium ions in the spectral range from 1450 to 1540 nm is exploited for the development of a highly efficient Er:YAG laser emitting at 1645 nm. Resonant pumping of the active medium with an absorption efficiency of up to 96% is achieved using a novel diode laser system consisting of two narrowband modules with a combined output power of 80 W ex fiber. The utilization of multiple pump wavelengths allows for both substantial power scaling and reduction of the laser threshold, thus providing a low power consuming laser system feasible for LIDAR applications.

Paper Details

Date Published: 26 March 2015
PDF: 8 pages
Proc. SPIE 9342, Solid State Lasers XXIV: Technology and Devices, 93420C (26 March 2015); doi: 10.1117/12.2080232
Show Author Affiliations
Haro Fritsche, Technische Univ. Berlin (Germany)
Oliver Lux, Technische Univ. Berlin (Germany)
Casey Schuett, Technische Univ. Berlin (Germany)
Martin Gaertner, Technische Univ. Berlin (Germany)
Ronny Juhre, DirectPhotonics Industries GmbH (Germany)
Andreas Grohe, DirectPhotonics Industries GmbH (Germany)
Wolfgang Gries, DirectPhotonics Industries GmbH (Germany)
Hans J. Eichler, Technische Univ. Berlin (Germany)

Published in SPIE Proceedings Vol. 9342:
Solid State Lasers XXIV: Technology and Devices
W. Andrew Clarkson; Ramesh K. Shori, Editor(s)

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