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  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 6 — Mar. 15, 2006
  • pp: 703–705

Tunable optical add–drop multiplexer based on long-period fiber gratings for coarse wavelength division multiplexing systems

Young-Geun Han, Sang Bae Lee, Chang-Seok Kim, and Myung Yung Jeong  »View Author Affiliations


Optics Letters, Vol. 31, Issue 6, pp. 703-705 (2006)
http://dx.doi.org/10.1364/OL.31.000703


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Abstract

We propose and experimentally demonstrate a voltage-controllable add–drop multiplexer with a tunable coupler based on long-period fiber gratings (LPFGs). The tunable coupler is based on cladding mode coupling between two parallel LPFGs with divided coil heaters, which controls the resonant wavelength positions of the two LPFGs. The wavelength tunability of the tunable coupler is measured to be 0.45 nm ° C in the temperature range from 20 to 120 ° C . The large tuning range of optical signals ( 50.54 nm ) from 1502.32 to 1552.86 nm , which covers both the short (S) and the conventional (C) bands, is achieved. The channel isolation is as high as 40 dB . It has several advantages, including a broad tuning range of wavelength in both the S- and C-bands, high channel isolation, no backreflection, and so on.

© 2006 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2340) Fiber optics and optical communications : Fiber optics components

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: October 13, 2005
Revised Manuscript: December 4, 2005
Manuscript Accepted: December 15, 2005

Citation
Young-Geun Han, Sang Bae Lee, Chang-Seok Kim, and Myung Yung Jeong, "Tunable optical add-drop multiplexer based on long-period fiber gratings for coarse wavelength division multiplexing systems," Opt. Lett. 31, 703-705 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-6-703


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