28 February 2006 Cryogenic Faraday isolator for high average power lasers
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It is experimentally demonstrated that cooling Faraday isolators to liquid nitrogen temperature considerably decreases thermally induced depolarization and thermal lens. This allows a 30 times increase in maximum average power of laser radiation going through the isolator at the same isolation ratio. It is shown that traditional Faraday isolators under such cooling conditions can operate at powers up to 10 kW, and Faraday isolators with compensation of depolarization and thermal lens - at powers up to 100 kW.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
D. S. Zheleznov, D. S. Zheleznov, A. V. Voitovich, A. V. Voitovich, I. B. Mukhin, I. B. Mukhin, O. V. Palashov, O. V. Palashov, E. A. Khazanov, E. A. Khazanov, } "Cryogenic Faraday isolator for high average power lasers", Proc. SPIE 6100, Solid State Lasers XV: Technology and Devices, 61000N (28 February 2006); doi: 10.1117/12.644135; https://doi.org/10.1117/12.644135

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