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Proceedings Paper

Fourier-transform spectral measurement with waveguide holographic grating
Author(s): Manli Hu; Jifang Liu; Yulin Li; Yushan Tan
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Paper Abstract

We propose a novel method of transform spectral measurement, based on the diffraction of light through the side of a waveguide fabricated in photorefractive crystal where a holographic grating is recorded by holography. The optical spectrum can be obtained by Fourier transform for the interference pattern, which is formed by lights diffracted from counter-propagating mode in the waveguide. Changing the periodic length of the holographic Bragg grating recorded in the waveguide can widen the range of measurable spectrum. This spectral measurement method is well suited as high- resolution wavelemeter, terminal network spectrum monitor and spectral measurement advice for fiber-grating sensor.

Paper Details

Date Published: 16 October 2001
PDF: 5 pages
Proc. SPIE 4603, Fiber Optics and Optoelectronics for Network Applications, (16 October 2001); doi: 10.1117/12.444561
Show Author Affiliations
Manli Hu, Northwest Univ. (China)
Jifang Liu, Xidian Univ. (China)
Yulin Li, Xi'an Institute of Optics and Fine Mechanics (China)
Yushan Tan, Xi'an Jiaotong Univ. (China)

Published in SPIE Proceedings Vol. 4603:
Fiber Optics and Optoelectronics for Network Applications
Jian Liu; Zhigong Wang, Editor(s)

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