Wavelength Dependence of Optical Waveguide-Type Devices for Recognition of QPSK Routing Labels

DOI Web Site 被引用文献6件 参考文献23件
  • MAKIMOTO Yoshihiro
    Department of Optical Science and Technology, The University of Tokushima
  • HIURA Hitoshi
    Department of Optical Science and Technology, The University of Tokushima
  • GOTO Nobuo
    Department of Optical Science and Technology, The University of Tokushima
  • YANAGIYA Shin-ichiro
    Department of Optical Science and Technology, The University of Tokushima

書誌事項

公開日
2010
DOI
  • 10.1587/transele.e93.c.157
公開者
一般社団法人 電子情報通信学会

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説明

In photonic label routing networks, recognition of optical labels is one of the key functions. We have proposed passive waveguide-type devices for recognition of optical labels coded in quadri-phase-shift-keying (QPSK) form. In this paper, we consider wavelength dependence of the devices. The basic module of the proposed device consists of a 3-dB directional coupler, two Y-junctions, and an asymmetric X-junction. The Y-junction and an asymmetric X-junction have basically no wavelength dependence. Although the 3-dB directional coupler has weak wavelength dependence, the device for two-symbol label recognition is found to work in wavelength 1.5-1.6µm. The performance of the device is confirmed by simulation using beam propagation method (BPM).

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