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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 20 — Jul. 10, 1998
  • pp: 4347–4356

High-contrast spatial light modulator by use of the electroabsorption and the electro-optic effects in a GaAs single crystal

Youichi Bitou and Takumi Minemoto  »View Author Affiliations


Applied Optics, Vol. 37, Issue 20, pp. 4347-4356 (1998)
http://dx.doi.org/10.1364/AO.37.004347


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Abstract

A new spatial light modulator that uses the electroabsorption and the electro-optic effects in a GaAs single crystal is proposed. The device has the same structure as a Pockels readout optical modulator and can be operated at a frame rate higher than 500 Hz. When the electroabsorption and the electro-optic effects are combined, the dynamic range (contrast ratio) becomes larger than that which results when either effect is used singly. It was experimentally confirmed that the modulator has a high contrast ratio (greater than 2000:1), high sensitivity, and consequently large γ characteristics.

© 1998 Optical Society of America

OCIS Codes
(230.2090) Optical devices : Electro-optical devices
(230.6120) Optical devices : Spatial light modulators

History
Original Manuscript: August 18, 1997
Revised Manuscript: February 23, 1998
Published: July 10, 1998

Citation
Youichi Bitou and Takumi Minemoto, "High-contrast spatial light modulator by use of the electroabsorption and the electro-optic effects in a GaAs single crystal," Appl. Opt. 37, 4347-4356 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-20-4347

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