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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 12 — Apr. 20, 2011
  • pp: 1792–1797

Simple hybrid wire–wireless fiber laser sensor by direct photonic generation of beat signal

Shengchun Liu, Liang Gao, Zuowei Yin, Yuechun Shi, Liang Zhang, Xiangfei Chen, and Jianchun Cheng  »View Author Affiliations


Applied Optics, Vol. 50, Issue 12, pp. 1792-1797 (2011)
http://dx.doi.org/10.1364/AO.50.001792


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Abstract

Based on direct photonic generation of a beat signal, a simple hybrid wire–wireless fiber laser sensor is proposed. In the sensor, an improved multilongitudinal modes fiber laser cavity is set up by only a fiber Bragg grating, a section of erbium-doped fiber, and a broadband reflector. A photodetector is used to detect the electrical beat signal. Next, the beat signal including the sensor information can access the wireless network through the wireless transmission. At last, a frequency spectrum analyzer is used to demodulate the sensing information. With this method, the long-distance real-time monitor of the fiber sensor can be realized. The proposed technique offers a simple and cheap way for sensing information of the fiber sensor to access the wireless sensor network. An experiment was implemented to measure the strain and the corresponding root mean square deviation is about 5.7 με at 916 MHz and 3.8 με at 1713 MHz after wireless transmission.

© 2011 Optical Society of America

OCIS Codes
(140.3490) Lasers and laser optics : Lasers, distributed-feedback
(350.4010) Other areas of optics : Microwaves
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: October 19, 2010
Revised Manuscript: February 16, 2011
Manuscript Accepted: February 17, 2011
Published: April 19, 2011

Citation
Shengchun Liu, Liang Gao, Zuowei Yin, Yuechun Shi, Liang Zhang, Xiangfei Chen, and Jianchun Cheng, "Simple hybrid wire–wireless fiber laser sensor by direct photonic generation of beat signal," Appl. Opt. 50, 1792-1797 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-12-1792


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