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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 22 — Aug. 1, 2006
  • pp: 5733–5739

Optical low-coherence reflectometry based on long-period grating Mach–Zehnder interferometers

A. Ping Zhang, Zu-Guang Guan, and Sailing He  »View Author Affiliations


Applied Optics, Vol. 45, Issue 22, pp. 5733-5739 (2006)
http://dx.doi.org/10.1364/AO.45.005733


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Abstract

The optical low-coherent interferometric technology for long-period grating (LPG) Mach–Zehnder interferometers is described. By including the coupling and recoupling behaviors of a LPG pair, a numerical model is developed to analyze the output reflectogram of the system. The effects of the grating interval, grating length, grating strength, and light source on the output reflectogram have been comprehensively discussed, which reveals that the low-coherence reflectometry offers the capability of interrogating the multiplexed sensors based on LPG pairs. A comparison of the calculated and experimental results is presented, and an excellent agreement between the simulation and the measurement is shown.

© 2006 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.2370) Fiber optics and optical communications : Fiber optics sensors

ToC Category:
Interferometry

History
Original Manuscript: January 3, 2006
Revised Manuscript: February 23, 2006
Manuscript Accepted: March 3, 2006

Citation
A. Ping Zhang, Zu-Guang Guan, and Sailing He, "Optical low-coherence reflectometry based on long-period grating Mach-Zehnder interferometers," Appl. Opt. 45, 5733-5739 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-22-5733


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