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Optics Letters

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  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 15 — Aug. 1, 2007
  • pp: 2082–2084

Widely tunable asymmetric long-period fiber grating with high sensitivity using optical polymer on laser-ablated cladding

Nan-Kuang Chen, Der-Yi Hsu, and Sien Chi  »View Author Affiliations


Optics Letters, Vol. 32, Issue 15, pp. 2082-2084 (2007)
http://dx.doi.org/10.1364/OL.32.002082


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Abstract

We demonstrate high-efficiency, wideband-tunable, laser-ablated long-period fiber gratings that use an optical polymer overlay. Portions of the fiber cladding are periodically removed by CO 2 laser pulses to induce periodic index changes for coupling the core mode into cladding modes. An optical polymer with a high thermo-optic coefficient with a dispersion distinct from that of silica is used on a deep-ablated cladding structure so that the effective indices of cladding modes become dispersive and the resonant wavelengths can be efficiently tuned. The tuning efficiency can be as high as 15.8 nm ° C , and the tuning range can be wider than 105 nm ( 1545 1650 nm ) .

© 2007 Optical Society of America

OCIS Codes
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(350.2770) Other areas of optics : Gratings

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: March 26, 2007
Revised Manuscript: May 10, 2007
Manuscript Accepted: May 10, 2007
Published: July 16, 2007

Citation
Nan-Kuang Chen, Der-Yi Hsu, and Sien Chi, "Widely tunable asymmetric long-period fiber grating with high sensitivity using optical polymer on laser-ablated cladding," Opt. Lett. 32, 2082-2084 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-15-2082


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