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Proceedings Paper

Diode-pumped multipath laser oscillators
Author(s): Juergen Erhard; Holger Laabs; Bernd Ozygus; Horst Weber; Qincheng Zhang
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Paper Abstract

Multipath resonators are well known as optical delay lines. By many zick-zack rays between two mirrors large optical path lengths can be obtained. This passive system can be converted into a laser oscillator by closed ray paths and a Nd:YAG crystal at one mirror. Optical pumping occurs by directly coupled diodes at the reflection points. Very efficient (more than 40% optical/optical) and compact systems up to 20 W, with the beam propagation factor m2 < 3 were generated. Q-switching and internal frequency doubling were also demonstrated. The fundamental physics of this system including the transverse mode-locking at the degeneration points of the resonator was investigated, experimentally and theoretically.

Paper Details

Date Published: 24 May 1999
PDF: 9 pages
Proc. SPIE 3611, Laser Resonators II, (24 May 1999); doi: 10.1117/12.349262
Show Author Affiliations
Juergen Erhard, Technical Univ. Berlin (Germany)
Holger Laabs, Technical Univ. Berlin (United States)
Bernd Ozygus, Technical Univ. Berlin (Germany)
Horst Weber, Technical Univ. Berlin (Germany)
Qincheng Zhang, Technical Univ. Berlin (Germany)


Published in SPIE Proceedings Vol. 3611:
Laser Resonators II
Alexis V. Kudryashov, Editor(s)

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