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Implementation of the concept of neutral gain modules in thin-disk lasers

Mende, Jens and Spindler, Gerhard and Hall, Thomas and Schmid, Elke and Speiser, Jochen and Giesen, Adolf (2012) Implementation of the concept of neutral gain modules in thin-disk lasers. Applied Physics B, Vol. 108 (Issue 4), pp. 779-792. Springer-Verlag. DOI: DOI 10.1007/s00340-012-5174-7. ISSN 0946-2171.

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Official URL: http://link.springer.com/article/10.1007%2Fs00340-012-5174-7

Abstract

Experimental results of the implementation of our concept of neutral gain modules (NGM) in high-power thin-disk lasers are presented. To demonstrate power scalability and high brightness, series of NGMs comprising up to four Yb:YAG thin-disk laser modules have been integrated in various ways into stable and unstable resonators. Furthermore, to compensate for the parabolic component of the remaining thermal lens effects in the high-power regime, an intracavity deformable mirror was embedded. On the basis of the underlying concept, in our experiments an output power of nearly 3 kW with a beam propagation factor M2 = 5 as well as a brightness up to B = 21 GW/(cm2 sr) could be demonstrated. Compensating systematically for the nonparabolic components of the phase aberrations, the concept also enables a further enhancement of the beam quality. The principle is transferable to other laser configurations, e.g., master oscillator power amplifier systems.

Document Type:Article
Title:Implementation of the concept of neutral gain modules in thin-disk lasers
Authors:
AuthorsInstitution or Email of Authors
Mende, JensTP
Spindler, GerhardTP
Hall, ThomasTP
Schmid, ElkeTP
Speiser, JochenTP
Giesen, AdolfTP
Date:16 September 2012
Journal or Publication Title:Applied Physics B
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:Vol. 108
DOI:DOI 10.1007/s00340-012-5174-7
Page Range:pp. 779-792
Publisher:Springer-Verlag
Series Name:Applied Physics B: Lasers and Optics
ISSN:0946-2171
Status:Published
Keywords:laser, thin-disk laser, power scalability, beam quality, high brightness, neutral gain module, multi disk configuration
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Laser Research and Technology
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics
Deposited By: Dr. Jens Mende
Deposited On:12 Nov 2012 11:11
Last Modified:07 Feb 2013 20:46

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