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Optical fiber refractometer based on cladding-mode Bragg grating

✍ Scribed by Han, Ming; Guo, Fawen; Lu, Yongfeng


Book ID
115432801
Publisher
Optical Society of America
Year
2010
Tongue
English
Weight
328 KB
Volume
35
Category
Article
ISSN
0146-9592

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A novel method to measure refractive index of liquids by using an extrinsic-phase-shift fiber Bragg grating (EPS-FBG) is proposed and experimentally demonstrated. The EPS-FBG is obtained by separating two identical FBG reflectors with a micrometer air gap as a phase-shift. This gap forms a phase-shi