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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 15 — May. 20, 2007
  • pp: 2817–2824

Segmented chirped grating for coarse wavelength division demultiplexing with multimode optical fibers

Tatsuya Sugita, Kouki Hirano, Tomiya Abe, and Yuzo Itoh  »View Author Affiliations


Applied Optics, Vol. 46, Issue 15, pp. 2817-2824 (2007)
http://dx.doi.org/10.1364/AO.46.002817


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Abstract

A chirped grating segmented into partitions each having a constant blaze angle to use in a demultiplexer for coarse wavelength division multiplexing with multimode optical fibers is developed. Its designed configuration utilizes a resonance region to achieve high diffraction efficiency and large dispersion. The width, blaze angle, and diffraction order of each partition were optimized by vector diffraction analysis. The diffraction loss of the manufactured grating was less than 1.5   dB , and polarization-dependent loss was less than 0 .6   dB within a wavelength width of at least 70   nm . It is confirmed that a demultiplexer with the developed chirped grating had a wide passband and low cross talk.

© 2007 Optical Society of America

OCIS Codes
(060.4230) Fiber optics and optical communications : Multiplexing
(230.1950) Optical devices : Diffraction gratings

ToC Category:
Diffraction and Gratings

History
Original Manuscript: October 5, 2006
Revised Manuscript: January 18, 2007
Manuscript Accepted: January 20, 2007
Published: May 1, 2007

Citation
Tatsuya Sugita, Kouki Hirano, Tomiya Abe, and Yuzo Itoh, "Segmented chirped grating for coarse wavelength division demultiplexing with multimode optical fibers," Appl. Opt. 46, 2817-2824 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-15-2817


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