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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. 23, Iss. 10 — Oct. 1, 2006
  • pp: 2645–2649

Sidelobe suppression design of etched diffraction grating demultiplexers using optimized air trenches in front of each output waveguide

Jun Song, Ning Zhu, and Sailing He  »View Author Affiliations


JOSA A, Vol. 23, Issue 10, pp. 2645-2649 (2006)
http://dx.doi.org/10.1364/JOSAA.23.002645


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Abstract

An etched diffraction grating (EDG) demultiplexer with high sidelobe suppression is designed. Sidelobes resulting from two adjacent wavelengths are suppressed by etching two optimized rectangular air trenches in front of each output waveguide that can induce large resonance loss in the adjacent wavelength but have little influence on the operational wavelength. The designed EDG demultiplexer can suppress crosstalk to less than 50 dB in theory.

© 2006 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(230.3120) Optical devices : Integrated optics devices
(250.5300) Optoelectronics : Photonic integrated circuits

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: January 27, 2006
Revised Manuscript: April 4, 2006
Manuscript Accepted: April 13, 2006

Citation
Jun Song, Ning Zhu, and Sailing He, "Sidelobe suppression design of etched diffraction grating demultiplexers using optimized air trenches in front of each output waveguide," J. Opt. Soc. Am. A 23, 2645-2649 (2006)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-23-10-2645


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References

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