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Integrated-optic add/drop multiplexing of free-space waves for intra-board chip-to-chip optical interconnects

Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, ISSN: 0021-4922, Vol: 44, Issue: 11, Page: 7987-7992
2005
  • 16
    Citations
  • 0
    Usage
  • 0
    Captures
  • 0
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  • 0
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Metrics Details

  • Citations
    16
    • Citation Indexes
      16

Article Description

In order to construct future optical interconnecting board providing ultra-broadband chip-to-chip signal transmission, integrated-optic configuration from two-dimensional array of surface emitting lasers to two-dimensional array of photodiodes was discussed with wavelength-division-multiplexing technique. TE guided mode was used for signal transmission while TE mode was used for input/output coupling of free-space waves to/from waveguide. Guided-mode-selective focusing grating coupler and different-guided-mode- coupling distributed Bragg reflector were integrated in thin-film waveguide to form free-space-wave add/drop multiplexer. Two-channel multi-/demultiplexing function was experimentally demonstrated for the first time with 5nm wavelength spacing around 850 nm wavelength, although insertion loss and crosstalk noise were estimated to be not sufficient but -30 and -5 dB, respectively. © 2005 The Japan Society of Applied Physics.

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