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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Stephen A. Burns
  • Vol. 25, Iss. 7 — Jul. 1, 2008
  • pp: 1629–1633

Proposal and analysis of digital concatenated gratings

Xiaoying He, Dexiu Huang, Yonglin Yu, and D. N. Wang  »View Author Affiliations


JOSA A, Vol. 25, Issue 7, pp. 1629-1633 (2008)
http://dx.doi.org/10.1364/JOSAA.25.001629


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Abstract

A digital concatenated grating composed of five subgratings is proposed. Essential formulas on Bragg periods of subgratings and an analytical expression for the reflection-spectrum envelope are presented, which show how to use reflection-spectrum envelopes to construct a digital concatenated grating with uniform reflection peaks. For a perfect design, the spectral center separation of adjacent Bragg gratings will be chosen as the integral times of the reflectivity peaks’ spacing. Gaussian apodization on the whole profile grating not only eliminates the sidelobes of each reflection peak but also provides a better flat reflection-spectrum envelope than that of the digital concatenated Gaussian-apodized grating.

© 2008 Optical Society of America

OCIS Codes
(060.2340) Fiber optics and optical communications : Fiber optics components
(070.4790) Fourier optics and signal processing : Spectrum analysis
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: March 14, 2008
Manuscript Accepted: April 26, 2008
Published: June 19, 2008

Citation
Xiaoying He, Dexiu Huang, Yonglin Yu, and D. N. Wang, "Proposal and analysis of digital concatenated gratings," J. Opt. Soc. Am. A 25, 1629-1633 (2008)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-25-7-1629

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