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Multimode interference tapered fiber refractive index sensors |
Applied Optics, Vol. 51, Issue 24, pp. 5941-5945 (2012)
http://dx.doi.org/10.1364/AO.51.005941
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Abstract
Real-time monitoring of the fabrication process of tapering down a
multimode-interference-based fiber structure is presented. The device is
composed of a pure silica multimode fiber (MMF) with an initial
125 μm diameter spliced between two single-mode fibers. The process
allows a thin MMF with adjustable parameters to obtain a high signal
transmittance, arising from constructive interference among the guided modes at
the output end of the MMF. Tapered structures with waist diameters as low as
55 μm were easily fabricated without the limitation of fragile
splices or difficulty in controlling lateral fiber alignments. The sensing
device is shown to be sensitive to the external environment, and a maximum
sensitivity of
© 2012 Optical Society of America
OCIS Codes
(060.2270) Fiber optics and optical communications : Fiber characterization
(060.2370) Fiber optics and optical communications : Fiber optics sensors
ToC Category:
Fiber Optics and Optical Communications
History
Original Manuscript: April 4, 2012
Revised Manuscript: June 27, 2012
Manuscript Accepted: July 6, 2012
Published: August 20, 2012
Citation
Claudecir R. Biazoli, Susana Silva, Marcos A. R. Franco, Orlando Frazão, and Cristiano M. B. Cordeiro, "Multimode interference tapered fiber refractive index sensors," Appl. Opt. 51, 5941-5945 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-24-5941
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