期刊
APPLIED OPTICS
卷 52, 期 17, 页码 3993-3997出版社
OPTICAL SOC AMER
DOI: 10.1364/AO.52.003993
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- DARPA/ADHELS program [H0011-06-1-0010]
Experimental and modeled dependencies of the induced refractive index on dosage of UV exposure in photo-thermo-refractive glass for different thermal treatment regimes are presented. Resulting spatial profiles of refractive index modulation in a reflecting Bragg grating recorded by a holographic technique are computed, and corresponding diffraction efficiencies are modeled. It is shown that nonlinearity of the photosensitivity response is responsible for spatial distortions of a recorded grating that result in a decrease of the diffraction efficiency. (C) 2013 Optical Society of America
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