OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 7 — Mar. 1, 2008
  • pp: 925–932

High-resolution interrogation technique for fiber optic extrinsic Fabry–Perot interferometric sensors by the peak-to-peak method

Yi Jiang  »View Author Affiliations


Applied Optics, Vol. 47, Issue 7, pp. 925-932 (2008)
http://dx.doi.org/10.1364/AO.47.000925


View Full Text Article

Enhanced HTML    Acrobat PDF (1065 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

An improved peak-to-peak method is developed for interrogating the absolute cavity length of fiber optic extrinsic Fabry–Perot interferometric (EFPI) sensors with high resolution. A fiber Fabry–Perot tunable filter (FFP-TF) is used to scan the optical spectrum of an EFPI, and the problems caused by the nonlinear performance and poor repeatability of the FFP-TF are removed by using a wavelength calibration technique. A linear fitting is used to calculate the wavelength spacing between two adjacent apexes in the optical spectrum, and the cavity length can be retrieved using this wavelength spacing. The experimental results show that the measuring resolution is improved from 25 to 1 μm , and a linear output is also obtained.

© 2008 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.3930) Instrumentation, measurement, and metrology : Metrological instrumentation

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: October 23, 2007
Revised Manuscript: December 25, 2007
Manuscript Accepted: January 9, 2008
Published: February 28, 2008

Citation
Yi Jiang, "High-resolution interrogation technique for fiber optic extrinsic Fabry-Perot interferometric sensors by the peak-to-peak method," Appl. Opt. 47, 925-932 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-7-925


Sort:  Year  |  Journal  |  Reset  

References

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited