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Proceedings Paper

Ultrahigh resolution optical spectrometry based on Brillouin dynamic grating
Author(s): Yongkang Dong; Taofei Jiang; Lei Teng; Hongying Zhang; Liang Chen; Xiaoyi Bao; Zhiwei Lu
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Paper Abstract

We demonstrate an ultrahigh resolution optical spectrometry based on Brillouin dynamic grating (BDG). Taking advantage of creating a long grating in an optical fiber, an ultra-narrow bandwidth optical filter is realized by operating a BDG in a long single-mode fiber (SMF), and the optical spectrometry is performed by sweeping the center wavelength of the filter through swept-tuned laser. In experiment, a 4-fm (0.5 MHz) spectral resolution is achieved by operating a BDG in a 400-m SMF, and the wavelength coverage can be readily extended to C+L band with a commercial tunable laser.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91572U (2 June 2014); doi: 10.1117/12.2059406
Show Author Affiliations
Yongkang Dong, Harbin Institute of Technology (China)
Taofei Jiang, Harbin Institute of Technology (China)
Lei Teng, Harbin Institute of Technology (China)
Hongying Zhang, Harbin Univ. of Science and Technology (China)
Liang Chen, Univ. of Ottawa (Canada)
Xiaoyi Bao, Univ. of Ottawa (Canada)
Zhiwei Lu, Harbin Institute of Technology (China)


Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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