Diode-pumped solid state laser with 2D intracavity beam scanning using liquid crystal spatial light modulator

A. F. Kornev; Arkady P. Onokhov; Vasiliy P. Pokrovskiy; Leonid N. Soms; V. K. Stupnikov

doi:10.1117/12.334798

29 December 1998 Diode-pumped solid state laser with 2D intracavity beam scanning using liquid crystal spatial light modulator

A. F. Kornev, Arkady P. Onokhov, Vasiliy P. Pokrovskiy, Leonid N. Soms, V. K. Stupnikov

Author Affiliations +

Proceedings Volume 3682, Laser Optics '98: Solid State Lasers; (1998) https://doi.org/10.1117/12.334798
Event: Laser Optics '98, 1998, St. Petersburg, Russian Federation

Abstract

The problem of swift steering of laser beams is important for many applications, (projection, marking, engraving, etc.). An approach of intracavity laser beams spatial control was proposed and developed by several teams [1 -9, 14] . Laser beam movement is provided, with thisapproach, by the positioning of the "ruling diaphragm" across the surface of one of mirrors of conjugate laser cavity. The "ruling diaphragm" can be done as a Spatial Light Modulator (SLM). Such modulators are based on various physical effects and can use various modulating media: electrooptical crystals [2, 10], thin semiconductor layers [1 1], ferro-electrical ceramics [12-14], or liquid crystals [6,8]. The electrically-addressed intracavity Spatial Light Modulators (SLMs) were experimentally shown to provide computer-controlled beam addressing to any pixel insidelaserFieldOfView (FOV) [12, 13,14] In the presented article the following aspects are treated of such laser development: (a) design and properties of iniracavity LC SLMs with random addressing to arbitrary pixel in 2D field, and (b) some peculiarities ofDPSSL with intracavity beam scanning, in terms of SLM operation inside the cavity, and thermal lens influence on the laser FOV

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A. F. Kornev, Arkady P. Onokhov, Vasiliy P. Pokrovskiy, Leonid N. Soms, and V. K. Stupnikov "Diode-pumped solid state laser with 2D intracavity beam scanning using liquid crystal spatial light modulator", Proc. SPIE 3682, Laser Optics '98: Solid State Lasers, (29 December 1998); https://doi.org/10.1117/12.334798

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KEYWORDS

Spatial light modulators

Liquid crystals

Resonators

Mirrors

Laser induced damage

Laser resonators

Resistance

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