Cryogenic Yb:YAG thin-disk laser

N. Vretenar; T. Carson; T. Lucas; T. Newell; W. P. Latham; P. Peterson; H. Bostanci; J. J. Lindauer; B. A. Saarloos; D. P. Rini

doi:10.1117/12.903731

5 October 2011 Cryogenic Yb:YAG thin-disk laser

N. Vretenar, T. Carson, T. Lucas, T. Newell, W. P. Latham, P. Peterson, H. Bostanci, J. J. Lindauer, B. A. Saarloos, D. P. Rini

Author Affiliations +

Proceedings Volume 8187, Technologies for Optical Countermeasures VIII; 818706 (2011) https://doi.org/10.1117/12.903731
Event: SPIE Security + Defence, 2011, Prague, Czech Republic

Abstract

At cryogenic temperatures, Yb:YAG behaves as a 4-level laser. Its absorption and emission cross-sections increase, and its thermal conductivity improves. Yb:YAG thin disk laser performance at room and cryogenic (80°K) temperatures will be presented. The Yb:YAG gain media is cooled using either a pressurized R134A refrigerant system or by a two-phase liquid nitrogen spray boiler. Interchangeable mounting caps allow the same Yb:YAG media to be switched between the two systems. This allows direct comparison of lasing, amplified spontaneous emission, and temperature performance between 20°C and -200°C.

Citation Download Citation

N. Vretenar, T. Carson, T. Lucas, T. Newell, W. P. Latham, P. Peterson, H. Bostanci, J. J. Lindauer, B. A. Saarloos, and D. P. Rini "Cryogenic Yb:YAG thin-disk laser", Proc. SPIE 8187, Technologies for Optical Countermeasures VIII, 818706 (5 October 2011); https://doi.org/10.1117/12.903731

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