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Chinese Optics Letters

Chinese Optics Letters


  • Editor: Zhizhan Xu
  • Vol. 12, Iss. 9 — Sep. 1, 2014
  • pp: 090601–

Liquid refractive index sensor based on polymer fiber with micro-holes created by femtosecond laser

Wenchao Dong, Jue Wei, Xuehai Wang, Zhihui Kang, and Xiaofeng Xu  »View Author Affiliations

Chinese Optics Letters, Vol. 12, Issue 9, pp. 090601- (2014)

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We present a liquid refractive index (RI) sensor based on step-index multimode polymer optical fiber with a micro-hole drilled by the femtosecond laser. The experimental results show that in the RI operation range of 1.333-1.473, the sensor has a good linear loss (dB) response to the liquid RI in the micro-holes and a high sensitivity of 18 dB/RIU approximately. The experimental results are explained with the mode of the refraction loss caused by the hole-core interface and connection loss caused by the gap of the holes. The sensor has many advantages including high sensitivity and low cost.

© 2014 Chinese Optics Letters

OCIS Codes
(060.2300) Fiber optics and optical communications : Fiber measurements
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2370) Fiber optics and optical communications : Fiber optics sensors

ToC Category:
Fiber Optics and Optical Communications

Wenchao Dong, Jue Wei, Xuehai Wang, Zhihui Kang, and Xiaofeng Xu, "Liquid refractive index sensor based on polymer fiber with micro-holes created by femtosecond laser," Chin. Opt. Lett. 12, 090601- (2014)

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