Refractometry based on a photonic crystal fiber interferometer
Optics Letters, Vol. 34, Issue 5, pp. 617-619 (2009)
http://dx.doi.org/10.1364/OL.34.000617
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Abstract
We report a simple and compact modal interferometer for applications in refractometry. The device consists of a stub of large-mode-area photonic crystal fiber (PCF) spliced between standard single-mode fibers. In the splice regions the voids of the PCF are fully collapsed, thus allowing the coupling and recombination of PCF core and cladding modes. The device is highly stable over time, has low temperature sensitivity, and is suitable for measuring indices in the 1.330–1.440 range. The measure of the refractive index is carried out by monitoring the shift of the interference pattern.
© 2009 Optical Society of America
OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(280.4788) Remote sensing and sensors : Optical sensing and sensors
(060.5295) Fiber optics and optical communications : Photonic crystal fibers
ToC Category:
Fiber Optics and Optical Communications
History
Original Manuscript: December 15, 2008
Revised Manuscript: January 21, 2009
Manuscript Accepted: January 21, 2009
Published: February 24, 2009
Citation
Rajan Jha, Joel Villatoro, Gonçal Badenes, and Valerio Pruneri, "Refractometry based on a photonic crystal fiber interferometer," Opt. Lett. 34, 617-619 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-5-617
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