Photorefractive Tungsten Bronze Crystals for Optical Limiters and Filters.
Final technical rept. 10 Aug 88-31 May 94,
ROCKWELL INTERNATIONAL THOUSAND OAKS CA SCIENCE CENTER
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The photorefractive tungsten bronze SBN6O and BSKNN-2 crystals were investigated for sensor protection applications with considerable success. Our best photorefractive crystals exhibit response times of approximately 10 microseconds with coupling 25cm. This fast response was achieved using suitable dopant combinations, external field and focusing the incoming 1Wsq cm laser beam. Prototype limiters based on these photorefractive crystals have been tested at the University of Arkansas and their overall performance is promising for sensor protection applications. MM
- Electrooptical and Optoelectronic Devices