Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 128, Issue 1, Pages 46-50Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2007.05.037
Keywords
fiber optic sensor; photonic bandgap fiber; refractive index measurement
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The use of photonic bandgap fibers for refractive index measurement has been demonstrated. The demonstrated PBGF has a wavelength shift of 280 nm in the falling photonic bandgap edge when the ambient refractive indices change from 1.333 to 1.39, which agrees well with the analytical prediction. A sensitivity of 2 x 10(-6) RIU is possible to be achieved assuming the demodulation system can resolve 0.01 nm wavelength shift. (c) 2007 Elsevier B.V. All rights reserved.
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