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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 11, Iss. 2 — Feb. 1, 2013
  • pp: 020606–

Inscription of Bragg gratings in few-mode optical fibers

Peng Guo, Yunjiang Rao, Dengyong Li, Yuan Gong, Gangding Peng, Yu Wu, Weili Zhang, and Huijuan Wu  »View Author Affiliations


Chinese Optics Letters, Vol. 11, Issue 2, pp. 020606- (2013)


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Abstract

Few-mode fiber Bragg grating (FM-FBG) has wide applications in the field of multi-wavelength fiber lasers and fiber-optic sensing. In this letter, FBG is successfully written in a novel type of FM fiber (FMF) based on 248-nm excimer laser and a uniform phase mask. A low-loss coupling between the FMF to a singlemode fiber is realized by a graded-index multi-mode fiber with a length of about a quarter pitch. The sensing properties of the FMF grating are further investigated. The experimental results indicate that the novel FM-FBG has sensitivities of temperature, strain, and bending of 11.2 pm/°C, 1.3 pm/με, and 636.9 pm/m-1, respectively.

© 2013 Chinese Optics Letters

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings

Citation
Peng Guo, Yunjiang Rao, Dengyong Li, Yuan Gong, Gangding Peng, Yu Wu, Weili Zhang, and Huijuan Wu, "Inscription of Bragg gratings in few-mode optical fibers," Chin. Opt. Lett. 11, 020606- (2013)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-11-2-020606

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