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Proceedings Paper

Refraction index measurement using long period grating fabricated by symmetrical-hole fiber
Author(s): Juan Kang; Xinyong Dong; Mengchao Li; Zaixuan Zhang; Shangzhong Jin
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Paper Abstract

A Long-Period Fiber Grating (LPFG) fabricated by CO2 laser in a symmetrical two-hole single-mode fiber (STHSMF) for refraction index (RI) measurement is demonstrated. The solved sugar liquid of different concentration was filled into the holes by capillary force and its RI was experimentally measured. The results show that resonant peak shifts toward shorter wavelengths with its resonance peak intensity changes a little when the external refractive index increases. RI sensitivity of 141.67 nm/RIU have been achieved with R2 of 0.975.The temperature sensitivity of the STHSMF is also investigated.

Paper Details

Date Published: 19 January 2011
PDF: 6 pages
Proc. SPIE 7986, Passive Components and Fiber-Based Devices VII, 79860X (19 January 2011); doi: 10.1117/12.888335
Show Author Affiliations
Juan Kang, China Jiliang Univ. (China)
Univ. of Shanghai for Science and Technology (China)
Xinyong Dong, China Jiliang Univ. (China)
Mengchao Li, Univ. of Shanghai for Science and Technology (China)
Zaixuan Zhang, China Jiliang Univ. (China)
Shangzhong Jin, China Jiliang Univ. (China)


Published in SPIE Proceedings Vol. 7986:
Passive Components and Fiber-Based Devices VII

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