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Proceedings Paper

Diode-pumped solid state laser with 2D intracavity beam scanning using liquid crystal spatial light modulator
Author(s): A. F. Kornev; Arkady P. Onokhov; Vasiliy P. Pokrovskiy; Leonid N. Soms; V. K. Stupnikov
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Paper 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

Paper Details

Date Published: 29 December 1998
PDF: 11 pages
Proc. SPIE 3682, Laser Optics '98: Solid State Lasers, (29 December 1998); doi: 10.1117/12.334798
Show Author Affiliations
A. F. Kornev, S.I. Vavilov State Optical Institute (Russia)
Arkady P. Onokhov, Peterlab Ltd. (Russia)
Vasiliy P. Pokrovskiy, S.I. Vavilov State Optical Institute (Russia)
Leonid N. Soms, S.I. Vavilov State Optical Institute (Russia)
V. K. Stupnikov, S.I. Vavilov State Optical Institute (Russia)


Published in SPIE Proceedings Vol. 3682:
Laser Optics '98: Solid State Lasers
Vladimir I. Ustugov, Editor(s)

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