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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 24 — Nov. 21, 2011
  • pp: 23727–23742

Decoding the spectra of low-finesse extrinsic optical fiber Fabry-Perot interferometers

Cheng Ma, Bo Dong, Jianmin Gong, and Anbo Wang  »View Author Affiliations


Optics Express, Vol. 19, Issue 24, pp. 23727-23742 (2011)
http://dx.doi.org/10.1364/OE.19.023727


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Abstract

A theoretical model is developed to address the fringe visibility and additional phase in the interference spectra of low-finesse extrinsic optical fiber excited Fabry-Pérot interferometers. The model described in the paper applies to both single-mode and multimode fiber excitations; according to the theory, the fringe visibility and additional phase term are primarily determined by the working wavelength and angular power density distribution outputting from the excitation fiber, rather than based on spatial and temporal degree of coherence. Under certain approximations, the output interference intensity and the spatial power density distribution projected onto the fiber axis form a Fourier-transform pair, which potentially provides a tool for spatial density distribution analysis of fiber output. With excellent agreement with experiments, the theory presented in this paper leads to design guidelines for Fabry-Pérot interferometric sensors and insightful physical understanding of such devices.

© 2011 OSA

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(120.2650) Instrumentation, measurement, and metrology : Fringe analysis
(120.3180) Instrumentation, measurement, and metrology : Interferometry

ToC Category:
Sensors

History
Original Manuscript: July 15, 2011
Manuscript Accepted: August 29, 2011
Published: November 8, 2011

Citation
Cheng Ma, Bo Dong, Jianmin Gong, and Anbo Wang, "Decoding the spectra of low-finesse extrinsic optical fiber Fabry-Perot interferometers," Opt. Express 19, 23727-23742 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-24-23727


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