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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Editor: Zhizhan Xu
  • Vol. 11, Iss. 11 — Nov. 1, 2013
  • pp: 110603–

Fiber inline interferometric refractive index sensors fabricated by femtosecond laser and fusion splicing

Yingyu Yu, Lan Jiang, Benye Li, Zhitao Cao, and Sumei Wang  »View Author Affiliations


Chinese Optics Letters, Vol. 11, Issue 11, pp. 110603- (2013)


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Abstract

A fiber inline interferometric refractive index (RI) sensor consisting of a microchannel and a fiber taper is proposed in this letter. The microchannel is fabricated by combining femtosecond laser micromachining and arc fusion splicing. No subsequent chemical etching process is needed. Three sensors with microchannel widths of 4, 8, and 10 \mu m are prepared. The sensitivity in the RI range from 1.33 to 1.35 is up to ~361.29 nm/RIU at the microchannel width of 8 ?m. The sensitivity is ~20 times greater than that of the paired taper-based MZI sensors and long period fiber grating pair MZI sensors.

© 2013 Chinese Optics Letters

OCIS Codes
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(220.4610) Optical design and fabrication : Optical fabrication

ToC Category:
Fiber Optics and Optical Communications

Citation
Yingyu Yu, Lan Jiang, Benye Li, Zhitao Cao, and Sumei Wang, "Fiber inline interferometric refractive index sensors fabricated by femtosecond laser and fusion splicing," Chin. Opt. Lett. 11, 110603- (2013)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-11-11-110603


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