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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 23 — Dec. 1, 2007
  • pp: 3376–3378

Design of wavelength tunable long-period grating couplers based on asymmetric nonlinear dual-core fibers

Florence Y.M. Chan and Kiyotoshi Yasumoto  »View Author Affiliations


Optics Letters, Vol. 32, Issue 23, pp. 3376-3378 (2007)
http://dx.doi.org/10.1364/OL.32.003376


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Abstract

We demonstrate a grating coupler using an asymmetric nonlinear dual-core fiber with a pair of long-period gratings (LPGs). Simple formulas for the achievement of 100% coupling efficiency and small sidelobes are derived. The passband exhibits steep band transitions. By launching high-intensity optical pumps to alter the refractive indices of the fiber cores through cross-phase modulation, a wavelength tunable LPG dual-core coupler can be realized.

© 2007 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(060.2310) Fiber optics and optical communications : Fiber optics
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(350.2770) Other areas of optics : Gratings

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: August 6, 2007
Revised Manuscript: October 11, 2007
Manuscript Accepted: October 25, 2007
Published: November 16, 2007

Citation
Florence Y. M. Chan and Kiyotoshi Yasumoto, "Design of wavelength tunable long-period grating couplers based on asymmetric nonlinear dual-core fibers," Opt. Lett. 32, 3376-3378 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-23-3376


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