Effect of polarization on efficiency of volume Bragg grating filter

Diffraction efficiency of volume Bragg grating, whose period is in the same order as the incident wavelength, is related to the polarization direction of the incident linear polarized beam. When two linearly polarized recording beams with the same polarization direction are used for recording volume...

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Bibliographic Details
Published in:	Chinese optics letters no. 8; pp. 738 - 740
Main Author:	郑浩斌何焰蓝谭吉春丁道一刘一星于晓燕郑光威王逍王晓东
Format:	Journal Article
Language:	English
Published:	10-08-2010
Subjects:	偏振方向光学滤波器光栅滤波器布拉格光栅线偏振光衍射光束衍射光栅
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Summary:	Diffraction efficiency of volume Bragg grating, whose period is in the same order as the incident wavelength, is related to the polarization direction of the incident linear polarized beam. When two linearly polarized recording beams with the same polarization direction are used for recording volume Bragg gratings in a photopolymer with diffusion amplification, the azimuth of polarization of the reconstruction beam influences the diffraction efficiency of the grating. When the probe beam is linearly polarized and oriented orthogonally to the grating vectors, the ±1-order diffraction beams are also linearly polarized with polarization direction parallel to that of the probe beam. According to the results, a two-dimensional nonspatial optical filter consisting of the volume Bragg gratings would achieve significantly higher efficiency.
Bibliography:	31-1890/O3 TN713 TN253
ISSN:	1671-7694
DOI:	10.3788/COL20100808.0738