Liquid crystal television (LCTV) as an angle-tuning means for phase matching in three-wave mixing devices

Narasimha S. Prasad; Natalie Clark

doi:10.1117/12.217383

23 August 1995 Liquid crystal television (LCTV) as an angle-tuning means for phase matching in three-wave mixing devices

Narasimha S. Prasad, Natalie Clark

Author Affiliations +

Proceedings Volume 2566, Advanced Imaging Technologies and Commercial Applications; (1995) https://doi.org/10.1117/12.217383
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

In this paper we have demonstrated a wavelength tuning scheme using a twisted nematic liquid crystal based LCTV operated in an amplitude coupled binary phase mode for three wave mixing devices. A cosine chirp that is written on the LCTV by electrically addressing its pixels through a personal computer, functions as a programmable spherical lens. Deflection of the input beam is achieved by introducing tilt aberration on the lens. A spot resolution of less than 1.65 arcsec, and a steering range of 2 degrees at a wavelength of 632.8 nm were achieved by continuously varying the tilt coefficient of the lens. The potential advantages of this scheme are speed, compactness, operational ease, and power consumption.

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Narasimha S. Prasad and Natalie Clark "Liquid crystal television (LCTV) as an angle-tuning means for phase matching in three-wave mixing devices", Proc. SPIE 2566, Advanced Imaging Technologies and Commercial Applications, (23 August 1995); https://doi.org/10.1117/12.217383

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