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http://hdl.handle.net/10397/4755
Title: | Photonic bandgap fiber tapers and in-fiber interferometric sensors | Authors: | Ju, J Ma, L Jin, W Hu, Y |
Issue Date: | 15-Jun-2009 | Source: | Optics letters, 15 June 2009, v. 34, no. 12, p. 1861-1863 | Abstract: | Nonadiabatic tapers in hollow-core air-silica photonic bandgap fibers (PBFs) were fabricated by the use of a fiber fusion splicer. In addition to the well-known scaling down of fiber dimensions, the innermost rings of air holes were found collapsed or significantly deformed, which results in almost doubling the diameter of the hollow core in the tapered region. The tapering of the PBF causes coupling of the fundamental core mode to a surface mode with ~10% higher effective mode index. An in-fiber core-surface mode interferometer was constructed by cascading two such tapers along the PBF. The interferometer was experimentally demonstrated for strain and temperature measurement, and the sensitivities of the interferometric peak wavelength to strain and temperature are measured to be −0.64 pm/με and 495.6 pm/(°C m), respectively. | Keywords: | Energy gap Fiber optic components Fibers Interferometers Interferometry Optical waveguides Silica Spontaneous emission Temperature measurement |
Publisher: | Optical Society of America | Journal: | Optics letters | ISSN: | 0146-9592 | EISSN: | 1539-4794 | DOI: | 10.1364/OL.34.001861 | Rights: | © 2009 Optical Society of America. This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-12-1861. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law. |
Appears in Collections: | Journal/Magazine Article |
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