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Two-axis acousto-optical deflector for high-power laser radiation
Author(s): D. Yu. Velikovskii; M. M. Mazur
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Paper Abstract

With the development of laser technology (for example, widespread use of diode pumping), the availability of powerful radiation sources is rising, which leads to an increase in demand for devices controlling powerful laser irradiation. The KGd(WO4)2 (short: KGW) crystal is one of the most famous due to a very high threshold of laser damage: up to 180 GW/cm2 for τ = 20 ns pulses [1]. It is widely used in laser technics as lasing material. It was shown it has rather good acousto-optical properties, as well as the group of double potassium rare-earth tungstates KRE(WO4)2, where RE = Yb, Lu, and Y. It has been demonstrated for the first time that their AO figure of merit M2 is comparable with that of LiNbO3 and better than M2 of SiO2. Moreover, these monoclinic crystals are optically biaxial, transparent in visible and infra-red ranges (0.4-5.5 μm), and demonstrate significant anisotropy.

Paper Details

Date Published: 14 May 2018
PDF: 5 pages
Proc. SPIE 10684, Nonlinear Optics and its Applications 2018, 106842A (14 May 2018); doi: 10.1117/12.2307444
Show Author Affiliations
D. Yu. Velikovskii, Scientific and Technological Ctr. for Unique Instrumentation (Russian Federation)
Kotelnikov Institute of Radio-engineering and Electronics (Russian Federation)
M. M. Mazur, VNIIFTRI (Russian Federation)


Published in SPIE Proceedings Vol. 10684:
Nonlinear Optics and its Applications 2018
Benjamin J. Eggleton; Neil G. R. Broderick; Anna C. Peacock, Editor(s)

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