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Proceedings Paper

Novel pump configuration for thin disk lasers
Author(s): M. Gilbert; G. Cheymol; P.-Y. Thro; M. Pealat; G. Le Touze
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Paper Abstract

Since its introduction the thin disk laser based on Yb:YAG material has been thoroughly investigated and first industrial systems are now available. Nevertheless, some problems arise when scaling the power up: The pump set-up is becoming complicated and there could be some difficulties in bonding the thin disk on the cooling finger. In this paper, we describe a novel pumping scheme solving those two problems. Instead of pumping from one face or on the side of thin disk we propose to use a combination of both using an additional optical element to guide the pump light to the disk. We show that up to 85 % of pump light can be absorbed by the laser material and the pump distribution can be very homogeneous. FEA calculations show that this configuration is also favourable to a better cooling of disk and reduced deformation in the laser material.

Paper Details

Date Published: 27 April 2005
PDF: 8 pages
Proc. SPIE 5707, Solid State Lasers XIV: Technology and Devices, (27 April 2005); doi: 10.1117/12.592160
Show Author Affiliations
M. Gilbert, CEA Saclay (France)
G. Cheymol, CEA Saclay (France)
P.-Y. Thro, CEA Saclay (France)
M. Pealat, SAGEM SA (France)
G. Le Touze

Published in SPIE Proceedings Vol. 5707:
Solid State Lasers XIV: Technology and Devices
Hanna J. Hoffman; Ramesh K. Shori, Editor(s)

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