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

Juan Kang; Xinyong Dong; Mengchao Li; Zaixuan Zhang; Shangzhong Jin

doi:10.1117/12.888335

19 January 2011 Refraction index measurement using long period grating fabricated by symmetrical-hole fiber

Juan Kang, Xinyong Dong, Mengchao Li, Zaixuan Zhang, Shangzhong Jin

Proceedings Volume 7986, Passive Components and Fiber-Based Devices VII; 79860X (2011) https://doi.org/10.1117/12.888335
Event: Asia Communications and Photonics Conference and Exhibition, 2010, Shanghai, Shanghai, China

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.

Citation Download 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 (19 January 2011); https://doi.org/10.1117/12.888335

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