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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 21 — Nov. 1, 2013
  • pp: 4473–4476

Tunable phase-shifted fiber Bragg grating based on femtosecond laser fabricated in-grating bubble

Changrui Liao, Lei Xu, Chao Wang, D. N. Wang, Yiping Wang, Qiao Wang, Kaiming Yang, Zhengyong Li, Xiaoyong Zhong, Jiangtao Zhou, and Yingjie Liu  »View Author Affiliations


Optics Letters, Vol. 38, Issue 21, pp. 4473-4476 (2013)
http://dx.doi.org/10.1364/OL.38.004473


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Abstract

We present a type of phase-shifted fiber Bragg gratings based on an in-grating bubble fabricated by femtosecond (fs) laser ablation together with a fusion-splicing technique. A microchannel vertically crossing the bubble is drilled by fs laser to allow liquid to flow in or out. By filling different refractive index (RI) liquid into the bubble, the phase-shift peak is found to experience a linear red shift with the increase of RI, while little contribution to the change of phase shift comes from the temperature and axial strain. Therefore, such a PS-FBG could be used to develop a promising tunable optical filter and sensor.

© 2013 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(140.7090) Lasers and laser optics : Ultrafast lasers
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: October 3, 2013
Revised Manuscript: October 11, 2013
Manuscript Accepted: October 13, 2013
Published: October 31, 2013

Citation
Changrui Liao, Lei Xu, Chao Wang, D. N. Wang, Yiping Wang, Qiao Wang, Kaiming Yang, Zhengyong Li, Xiaoyong Zhong, Jiangtao Zhou, and Yingjie Liu, "Tunable phase-shifted fiber Bragg grating based on femtosecond laser fabricated in-grating bubble," Opt. Lett. 38, 4473-4476 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-21-4473

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