Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/12714
Title: Twisted optical microfibers for refractive index sensing
Authors: Liao, CR
Wang, DN 
He, X
Yang, MW
Keywords: Optical microfiber
refractive index sensor
Issue Date: 2011
Publisher: IEEE-Inst Electrical Electronics Engineers Inc
Source: IEEE photonics technology letters, 2011, v. 23, no. 13, 5744101, p. 848-850 How to cite?
Journal: IEEE Photonics Technology Letters 
Abstract: A simple, compact, and robust refractive index sensor is developed, by twisting a pair of silica microfibers to form a coupling device. The transmission spectrum of the device is highly sensitive to the surrounding refractive index and the highest sensitivity obtained is -2377 nm/refractive index unit (RIU), at the refractive index value of - 1.3680, for the fibers with diameter of ∼4.2 μm, and the sensitivity can be further increased to - 2735 nm/RIU for a smaller fiber diameter of ∼2.8 μm. Such a device is easy to construct, of low cost, and compatible with the optical fiber system.
URI: http://hdl.handle.net/10397/12714
DOI: 10.1109/LPT.2011.2138126
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