1 June 1991 Photorefractive two-wave mixing characteristics for image amplification in diffusion-driven media
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Proceedings Volume 1409, Nonlinear Optics II; (1991) https://doi.org/10.1117/12.43562
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States
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
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
G. Charmaine Gilbreath, Anne E. Clement, S. N. Fugera, Gregory J. Mizell, "Photorefractive two-wave mixing characteristics for image amplification in diffusion-driven media", Proc. SPIE 1409, Nonlinear Optics II, (1 June 1991); doi: 10.1117/12.43562; https://doi.org/10.1117/12.43562
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