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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 46, Iss. 23 — Aug. 10, 2007
  • pp: 5604–5607

Wavelength demultiplexing with layered multiple Bragg gratings in LiNbO3:Fe crystal

Dexing Yang, Haibin Wang, Xiarui Guo, Jianlin Zhao, and Hongli Xiang  »View Author Affiliations

Applied Optics, Vol. 46, Issue 23, pp. 5604-5607 (2007)

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Dense wavelength division multiplexing (DWDM) is an important technology for expanding the capacity of optical network. The optical component based on the superimposed Bragg gratings shows that it can be used as one of advantageous multichannel components because of its excellent angle and wavelength selectivities. An optimized method for recording multiple Bragg gratings for wavelength demultiplexing in optical telecommunication band is proposed to achieve gratings with equal diffraction efficiency. A structure of three layers with twenty four gratings is demonstrated in a LiNbO 3 : Fe crystal by employing the optimized recording method. Then an initial wavelength demultiplexing experiment based on the formed gratings is carried out in optical telecommunication C-band. The results obtained by measuring and analyzing the transmitted spectra of the fabricated gratings show that the diffraction efficiencies of the gratings are uniform. It is suggested that this kind of multiple gratings can be used for increasing the number of the demultiplexed wavelengths in recording medium with unit volume for WDM.

© 2007 Optical Society of America

OCIS Codes
(050.7330) Diffraction and gratings : Volume gratings
(060.4230) Fiber optics and optical communications : Multiplexing
(090.4220) Holography : Multiplex holography
(090.7330) Holography : Volume gratings
(160.3730) Materials : Lithium niobate

ToC Category:
Diffraction and Gratings

Original Manuscript: January 4, 2007
Revised Manuscript: May 11, 2007
Manuscript Accepted: May 18, 2007
Published: August 8, 2007

Dexing Yang, Haibin Wang, Xiarui Guo, Jianlin Zhao, and Hongli Xiang, "Wavelength demultiplexing with layered multiple Bragg gratings in LiNbO3:Fe crystal," Appl. Opt. 46, 5604-5607 (2007)

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