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Self-stabilized recording of fixed gratings at high temperature in LiNbO_(3):Fe

机译:LiNbO_(3):Fe中高温下固定光栅的自稳定记录

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摘要

A high quality fixed holographic grating was recorded in a photorefractive LiNbO_(3):Fe crystal at about 100 deg C in a homemade temperature-controlled vacuum chamber. The recording was carried out using self-stabilization techniques with lambda velence 532 nm beams guided onto the crystal by polarization maintaining fibers. The diffraction efficiency of the fixed grating was eta velence 0.44 when measured in the recording setup using the same lambda velence 532 nm recording beams. A compatible eta was measured with lambda velence 633 nm in an auxiliary setup, and a 1 mrad angular Bragg selectivity at FWMH was estimated, thus demonstrating the uniformity and good quality of the fixed grating.
机译:在自制的温控真空室中,在约100摄氏度的光折射LiNbO_(3):Fe晶体中记录了高质量的固定全息光栅。记录是使用自稳定技术进行的,其中波长为532 nm的光束通过保偏光纤引导到晶体上。当使用相同的λ声速532 nm记录光束在记录设置中测量时,固定光栅的衍射效率为ε速度0.44。在辅助设置中用λ波长633 nm测量了相容的eta,并估计了FWMH处的1 mrad角布拉格选择性,从而证明了固定光栅的均匀性和良好的质量。

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