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Proceedings Article

Refraction index measurement using long period grating fabricated by symmetrical-hole fiber

[+] Author Affiliations
Juan Kang

China Jiliang Univ. (China) and Univ. of Shanghai for Science and Technology (China)

Xinyong Dong, Zaixuan Zhang, Shangzhong Jin

China Jiliang Univ. (China)

Mengchao Li

Univ. of Shanghai for Science and Technology (China)

Proc. SPIE 7986, Passive Components and Fiber-Based Devices VII, 79860X (January 19, 2011); doi:10.1117/12.888335
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From Conference Volume 7986

  • Passive Components and Fiber-Based Devices VII
  • Perry P. Shum
  • Shanghai, China | December 08, 2010

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.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Juan Kang ; Xinyong Dong ; Mengchao Li ; Zaixuan Zhang and Shangzhong Jin
"Refraction index measurement using long period grating fabricated by symmetrical-hole fiber", Proc. SPIE 7986, Passive Components and Fiber-Based Devices VII, 79860X (January 19, 2011); doi:10.1117/12.888335; http://dx.doi.org/10.1117/12.888335


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