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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 33, Iss. 8 — Apr. 15, 2008
  • pp: 812–814

Photonic crystal fiber interferometer composed of a long period fiber grating and one point collapsing of air holes

Hae Young Choi, Kwan Seob Park, and Byeong Ha Lee  »View Author Affiliations


Optics Letters, Vol. 33, Issue 8, pp. 812-814 (2008)
http://dx.doi.org/10.1364/OL.33.000812


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Abstract

We present an all-fiber interferometer fabricated with a single piece of an endless single-mode photonic crystal fiber (PCF) by an electric arc discharge. By forming a long period grating (LPG) at a point and collapsing the air holes at another point along the PCF, the simple but effective interferometer could be implemented. The LPG made a strong wavelength selective mode coupling between the core and cladding modes in the interesting wavelength range, while the air-hole collapse induced wavelength independent mode couplings. By cascading them, we could implement the all-fiber interferometer. As a potential application of the proposed all PCF interferometer, strain sensing is experimentally demonstrated.

© 2008 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.5295) Fiber optics and optical communications : Photonic crystal fibers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: January 4, 2008
Revised Manuscript: March 5, 2008
Manuscript Accepted: March 6, 2008
Published: April 10, 2008

Citation
Hae Young Choi, Kwan Seob Park, and Byeong Ha Lee, "Photonic crystal fiber interferometer composed of a long period fiber grating and one point collapsing of air holes," Opt. Lett. 33, 812-814 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-8-812


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