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Proceedings Paper

Narrow-linewidth laser source with precision frequency tunability for distributed optical sensing applications
Author(s): Fang Wei; Bin Lu; Yulong Cao; Zhengqing Pan; Dijun Chen; Qing Ye; Haiwen Cai; Ronghui Qu; Hao Zhao
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Paper Abstract

We demonstrate a narrow-linewidth laser source for high spatial resolution distributed optical sensing by utilizing the high-order modulation sidebands injection locking. A pair of phase-locked lasers with arbitrary frequency offset from 5 GHz to 50 GHz is generated. Meanwhile, a linearized frequency sweep covering range of 15 GHz in 6 ms with frequency errors of 240 kHz from linearity is also achieved using the same scheme, the instantaneous linewidth of the frequency-swept laser is measured to be ~2.5 kHz.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96346V (28 September 2015); doi: 10.1117/12.2194489
Show Author Affiliations
Fang Wei, Shanghai Institute of Optics and Fine Mechanics (China)
Bin Lu, Shanghai Institute of Optics and Fine Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Yulong Cao, Shanghai Institute of Optics and Fine Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Zhengqing Pan, Shanghai Institute of Optics and Fine Mechanics (China)
Dijun Chen, Shanghai Institute of Optics and Fine Mechanics (China)
Qing Ye, Shanghai Institute of Optics and Fine Mechanics (China)
Haiwen Cai, Shanghai Institute of Optics and Fine Mechanics (China)
Ronghui Qu, Shanghai Institute of Optics and Fine Mechanics (China)
Hao Zhao, Shanghai Bandweaver Technologies Co. Ltd. (China)


Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

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