Finite-Difference Time-Domain Analysis of Wavelength-Selective Characteristics in Weighted Acoustooptic Switches for Wavelength-Division-Multiplexed Photonic Routing

• Goto Nobuo

  Department of Information and Computer Sciences, Toyohashi University of Technology

• Miyazaki Yasumitsu

  Department of Electronics and Information Engineering, Aichi University of Technology

抄録

Waveguide-type acoustooptic (AO) switches can switch optical waves wavelength-selectively for wavelength-division-multiplexed (WDM) signals. The switches can be expected to be used in WDM photonic networks. In this paper, finite-difference time-domain (FDTD) analysis is presented for wavelength-selective switching with a collinear weighted AO device consisting of an optical directional coupler, input/output Y-branches and a tapered surface acoustic wave (SAW) waveguide. The FDTD simulated results are compared with the result from the coupled mode theory. It is shown that a sidelobe level as low as −20 dB in the filtering characteristics is realized by using weighted AO interaction. It is also shown that the sidelobe structure is affected by the characterisitcs of the input Y-branch.

収録刊行物

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 43 (5B), 2958-2964, 2004

  The Japan Society of Applied Physics

キーワード

• WDM
• photonic switching
• acoustooptic device
• FDTD method
• weighted coupling

詳細情報

• CRID: 1390001206264450048
• NII論文ID: 10013097730
• NII論文ID: 30021854776
• NII論文ID: 210000055581
• NII論文ID: 130004532063
• NII書誌ID: AA10457675
• DOI: 10.1143/jjap.43.2958
• ISSN: 13474065
• ISSN: 00214922
• ISSN: http://id.crossref.org/issn/00214922
• NDL書誌ID: 6957961
• Web Site: http://id.ndl.go.jp/bib/6957961
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6957961
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.43.2958
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.43.2958/pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
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