Novel pump configuration for thin disk lasers

M. Gilbert; G. Cheymol; P.-Y. Thro; M. Pealat; G. Le Touze

doi:10.1117/12.592160

27 April 2005 Novel pump configuration for thin disk lasers

M. Gilbert, G. Cheymol, P.-Y. Thro, M. Pealat, G. Le Touze

Proceedings Volume 5707, Solid State Lasers XIV: Technology and Devices; (2005) https://doi.org/10.1117/12.592160
Event: Lasers and Applications in Science and Engineering, 2005, San Jose, California, United States

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.

Citation Download Citation

M. Gilbert, G. Cheymol, P.-Y. Thro, M. Pealat, and G. Le Touze "Novel pump configuration for thin disk lasers", Proc. SPIE 5707, Solid State Lasers XIV: Technology and Devices, (27 April 2005); https://doi.org/10.1117/12.592160

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