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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 10 — May. 20, 2013
  • pp: 11901–11912

Phase-shift formed in a long period fiber grating and its application to the measurements of temperature and refractive index

Keisuke Hishiki and Hongpu Li  »View Author Affiliations

Optics Express, Vol. 21, Issue 10, pp. 11901-11912 (2013)

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A novel approach to calibrate a phase-shift formed in a long-period fiber grating (LPG) is firstly proposed and numerically demonstrated, which is based on the use of either intensity- or wavelength-interrogation technique to the main loss-peak of the phase-shift LPG in the spectrum. Moreover, by using a CO2 laser with high-repetition-rate pulses emission, an equivalent phase-shift is successfully created at middle of the LPG. As an application of the proposed calibration scheme, measurement for the temperature and the refractive index of the ambient solution has been proposed and successfully demonstrated by using a phase-shifted LPG.

© 2013 OSA

OCIS Codes
(050.5080) Diffraction and gratings : Phase shift
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(350.2770) Other areas of optics : Gratings

ToC Category:
Quantum Optics

Original Manuscript: March 27, 2013
Revised Manuscript: May 3, 2013
Manuscript Accepted: May 3, 2013
Published: May 8, 2013

Keisuke Hishiki and Hongpu Li, "Phase-shift formed in a long period fiber grating and its application to the measurements of temperature and refractive index," Opt. Express 21, 11901-11912 (2013)

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