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Optics Letters

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  • Vol. 36, Iss. 2 — Jan. 15, 2011
  • pp: 268–270

Femtosecond laser microfabricated fiber Mach–Zehnder interferometer for sensing applications

Ping Lu and Qiying Chen  »View Author Affiliations


Optics Letters, Vol. 36, Issue 2, pp. 268-270 (2011)
http://dx.doi.org/10.1364/OL.36.000268


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Abstract

We demonstrate a femtosecond laser microfabricated fiber Mach–Zehnder interferometer and reveal the dependences of the sensitivities of different environmental parameters on the specifications of the interferometer. A 30-mm-long fiber interferometer at a wavelength of 1593 nm exhibits a temperature sensitivity of 0.103 nm / ° C , axial strain sensitivity of 1.35 pm / με , and refractive index sensitivity of 15.294 nm / RIU , respectively. In addition to dependence on interferometer length, the sensitivities are also strongly dependent on the operation wavelength of the selected interference order. When the operation wavelength is selected at 1525 nm , the sensitivities are 0.085 nm / ° C , 0.09 pm / με , and 13.824 nm / RIU , respectively.

© 2011 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(060.4005) Fiber optics and optical communications : Microstructured fibers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: October 11, 2010
Revised Manuscript: December 3, 2010
Manuscript Accepted: December 13, 2010
Published: January 13, 2011

Citation
Ping Lu and Qiying Chen, "Femtosecond laser microfabricated fiber Mach–Zehnder interferometer for sensing applications," Opt. Lett. 36, 268-270 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-2-268

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