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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 38, Iss. 5 — Mar. 1, 2013
  • pp: 757–759

Microfiber in-line Mach–Zehnder interferometer for strain sensing

C. R. Liao, D. N. Wang, and Ying Wang  »View Author Affiliations


Optics Letters, Vol. 38, Issue 5, pp. 757-759 (2013)
http://dx.doi.org/10.1364/OL.38.000757


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Abstract

An elegant way of achieving an ultracompact optical fiber in-line Mach–Zehnder interferometer is to create an inner air cavity in a section of microfiber. The sandwich structure splits the light propagating in the fiber into two beams: one passes through the inner air cavity and the other travels along the silica wall of the cavity before recombining at the cavity end, resulting in an interference fringe pattern. Such a device is applied for strain measurement with a high sensitivity of 6.8pm/με.

© 2013 Optical Society of America

OCIS Codes
(230.3990) Optical devices : Micro-optical devices
(260.3160) Physical optics : Interference

ToC Category:
Optical Devices

History
Original Manuscript: October 30, 2012
Revised Manuscript: February 4, 2013
Manuscript Accepted: February 4, 2013
Published: February 27, 2013

Citation
C. R. Liao, D. N. Wang, and Ying Wang, "Microfiber in-line Mach–Zehnder interferometer for strain sensing," Opt. Lett. 38, 757-759 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-5-757


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