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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 33, Iss. 15 — Aug. 1, 2008
  • pp: 1666–1668

Influence of depressed-index outer ring on evanescent tunneling loss in tapered double-cladding fibers

Nan-Kuang Chen, Kuei-Chu Hsu, Shien-Kuei Liaw, Yinchieh Lai, and Sien Chi  »View Author Affiliations


Optics Letters, Vol. 33, Issue 15, pp. 1666-1668 (2008)
http://dx.doi.org/10.1364/OL.33.001666


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Abstract

A tapered fiber with a depressed-index outer ring is fabricated and dispersion engineered to generate a widely tunable ( 1250 1650 nm ) fundamental-mode leakage loss with a high cutoff slope ( 1.2 dB nm ) and a high attenuation for stop band ( > 50 dB ) by modification of both waveguide and material dispersions. The higher cutoff slope is achieved with a larger cross angle between the two refractive index dispersion curves of the tapered fiber and surrounding optical liquids through the use of depressed-index outer ring structures in double-cladding fibers.

© 2008 Optical Society of America

OCIS Codes
(060.2340) Fiber optics and optical communications : Fiber optics components
(260.2030) Physical optics : Dispersion

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: April 7, 2008
Revised Manuscript: June 8, 2008
Manuscript Accepted: June 9, 2008
Published: July 22, 2008

Citation
Nan-Kuang Chen, Kuei-Chu Hsu, Shien-Kuei Liaw, Yinchieh Lai, and Sien Chi, "Influence of depressed-index outer ring on evanescent tunneling loss in tapered double-cladding fibers," Opt. Lett. 33, 1666-1668 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-15-1666


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