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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 37, Iss. 22 — Nov. 15, 2012
  • pp: 4768–4770

Acoustic vibration sensor based on nonadiabatic tapered fibers

Ben Xu, Yi Li, Miao Sun, Zhen-Wei Zhang, Xin-Yong Dong, Zai-Xuan Zhang, and Shang-Zhong Jin  »View Author Affiliations

Optics Letters, Vol. 37, Issue 22, pp. 4768-4770 (2012)

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A simple and low-cost vibration sensor based on single-mode nonadiabatic fiber tapers is proposed and demonstrated. The environmental vibrations can be detected by demodulating the transmission loss of the nonadiabatic fiber taper. Theoretical simulations show that the transmission loss is related to the microbending of the fiber taper induced by vibrations. Unlike interferometric sensors, this vibration sensor does not need any feedback loop to control the quadrature point to obtain a stable performance. In addition, it has no requirement for the coherence of the light source and is insensitive to temperature changes. Experimental results show that this sensing system has a wide frequency response range from a few hertz to tens of kilohertz with the maximal signal to noise ratio up to 73 dB.

© 2012 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.4005) Fiber optics and optical communications : Microstructured fibers

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: September 6, 2012
Revised Manuscript: October 9, 2012
Manuscript Accepted: October 10, 2012
Published: November 14, 2012

Ben Xu, Yi Li, Miao Sun, Zhen-Wei Zhang, Xin-Yong Dong, Zai-Xuan Zhang, and Shang-Zhong Jin, "Acoustic vibration sensor based on nonadiabatic tapered fibers," Opt. Lett. 37, 4768-4770 (2012)

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