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Proceedings Paper

Scanned Talbot interferometer based on fiber translation for changing written Bragg wavelength
Author(s): C. Li; Y. M. Zhang; T. G. Liu; J. F. Jiang; Z. Wan; M. J. Li; Y. Wang
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Paper Abstract

A scanned Talbot interferometer based on shifting phase mask and fiber is developed to change the inscribed Bragg wavelength. In the scanned Talbot interferometer with scan translation platform and fiber translation platform, the ±1 order diffraction light beams form the interference fringe in the far field, thereinto, the fiber translation platform drives the fiber exposing in the interference fringe, and the scan translation platform causes the fiber shifting in the interference fringe to point-by-point write grating in the fiber. Followed the size of interference fringe is decreases from 10 mm to about fraction of a mm, the coherence length of light beams is reduced distinctly. It is important that the length of mirror could be reduced to the size of interference fringe. Additionally, the pulse energy of light source is also reduced evidently.

Paper Details

Date Published: 24 January 2008
PDF: 5 pages
Proc. SPIE 6829, Advanced Materials and Devices for Sensing and Imaging III, 68290U (24 January 2008); doi: 10.1117/12.753620
Show Author Affiliations
C. Li, Kunming Univ. of Science and Technology (China)
Y. M. Zhang, Tianjin Univ. (China)
T. G. Liu, Tianjin Univ. (China)
J. F. Jiang, Tianjin Univ. (China)
Z. Wan, Kunming Univ. of Science and Technology (China)
M. J. Li, Kunming Univ. of Science and Technology (China)
Y. Wang, Kunming Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 6829:
Advanced Materials and Devices for Sensing and Imaging III
Anbo Wang; Yimo Zhang; Yukihiro Ishii, Editor(s)

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