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Proceedings Paper

Photorefractive two-wave mixing characteristics for image amplification in diffusion-driven media
Author(s): G. Charmaine Gilbreath; Anne E. Clement; S. N. Fugera; Gregory J. Mizell
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Paper Abstract

Photorefractive two-wave mixing was examined in the context of optical image amplification for diffusion-driven crystals at three wavelengths. Gain, beam fanning, and energy distribution at the image plane were studied in poled doped samples of KNbO3, BaTiO3, and SBN. Response were characterized at 514.5 nm, 632 nm, and 823 nm. To study the response at 823 nm, a mode-stabilized laser diode was used. To achieve stable optical image amplification in a continuous wave regime, low light levels were required for BaTiO3 at 514.5 nm. KNbO3 was a viable coupler at 514.5 nm at milliwatt power levels. Data indicates that SBN is a suitable coupler in the green only at extremely low power levels (microwatts). All three crystals exhibited gains in the near-infrared

Paper Details

Date Published: 1 June 1991
PDF: 13 pages
Proc. SPIE 1409, Nonlinear Optics II, (1 June 1991); doi: 10.1117/12.43562
Show Author Affiliations
G. Charmaine Gilbreath, Naval Research Lab. (United States)
Anne E. Clement, Naval Research Lab. (United States)
S. N. Fugera, Sachs-Freeman Associates, Inc. (United States)
Gregory J. Mizell, Virgo Optics, Inc. (United States)

Published in SPIE Proceedings Vol. 1409:
Nonlinear Optics II
Robert A. Fisher; John F. Reintjes, Editor(s)

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