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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Editor: Zhizhan Xu
  • Vol. 10, Iss. 5 — May. 1, 2012
  • pp: 050501–

Comparative study of fiber optic liquid level sensors based on long-period fiber gratings with different doping concentrations

Barerem-Melgueba Mao, Yizhen Wei, and Bin Zhou  »View Author Affiliations


Chinese Optics Letters, Vol. 10, Issue 5, pp. 050501- (2012)


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Abstract

The performances of two liquid level sensors based on long-period fiber gratings are studied. The long-period gratings (LPGs) have similar characteristics (length and period), but are fabricated with two photosensitive B-Ge co-doped fibers with different dopant concentrations. We investigate the temperature sensitivities of LPGs and exploit their refractive index sensitivity to implement liquid level measurement. By controlling fiber parameters, such as the dopant concentrations, the measurement sensitivity of a LPG-based fiber optic liquid level sensor can be improved.

© 2012 Chinese Optics Letters

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(230.1150) Optical devices : All-optical devices

ToC Category:
Diffraction and Gratings

Citation
Barerem-Melgueba Mao, Yizhen Wei, and Bin Zhou, "Comparative study of fiber optic liquid level sensors based on long-period fiber gratings with different doping concentrations," Chin. Opt. Lett. 10, 050501- (2012)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-10-5-050501

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