Acousto-optic modulators of high-power laser radiation on the basis of KGW and KYW crystals
| Autor: | A. V. Ryabinin, A. A. Sirotkin, M. M. Mazur, V. N. Shorin, L. I. Mazur |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science business.industry Wavelength range Statistical and Nonlinear Physics Radiation Laser 01 natural sciences Q-switching Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Power (physics) law.invention 010309 optics law 0103 physical sciences Optoelectronics Laser beam quality Electrical and Electronic Engineering business Lasing threshold Radiation resistance |
| Zdroj: | Quantum Electronics. 50:957-961 |
| ISSN: | 1468-4799 1063-7818 |
| DOI: | 10.1070/qel17375 |
| Popis: | Different modifications of acousto-optic modulators (AOMs) based on KG(WO4)2 (KGW) and KY(WO4)2 (KYW) crystals, designed for Q switching of high-power pulsed lasers, is developed and investigated. It is shown that AOMs based on these crystals are universal, can be combined with different lasers in the wavelength range of 1 – 3 μm, and have a high radiation resistance in the absence of antireflection coatings and light input at Brewster’s angle. The operation efficiency of KGW-based AOMs is experimentally demonstrated. Solid-state lasers based on Cr : Er : YSGG (λ = 2.78 μm), Cr : Yb : Ho : YSGG (λ = 2.87 μm), Cr : Tm : Ho : YSGG (λ = 2.09 μm), and Nd : YAG (λ = 1.064 μm) crystals with active acousto-optic Q switching, operating in the repetitively pulsed regime with a high beam quality and without surface destruction, are investigated. Lasing pulses (30 – 60)-ns long with energy up to 32 mJ at a repetition rate from 1 to 1000 Hz are obtained. |
| Databáze: | OpenAIRE |
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