Abstract
The role of chromium dopant concentration in photorefractive strontium barium niobate is investigated in two 5 mm cubed crystals doped with 0.011% and 0.06% chromium and one 0.5 mm thick (0.06% chromium). Two-beam coupling, grating formation and erasure times, and beam fanning are utilized to extrapolate several material parameters from these crystals.
© 1993 Optical Society of America
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