Spatial Multiplexing through Silicon Photonic Devices for High-Bandwidth Data Transmission

  • Authors:
    Christine P. Chen (Columbia), Jeffrey Driscoll (Intel), Richard M. Osgood (Columbia), Keren Bergman (Columbia)
    Publication ID:
    Publication Type:
    Received Date:
    Last Edit Date:
    2209.001 (Columbia University)


High-bandwidth interconnects are needed to sustain the growing amount of data supported by microelectronic system architectures. Silicon photonics (SiPh) offer an avenue for large bandwidth capacity while maintaining high energy efficiency. This work supports efforts for realizing mode-division multiplexing and polarization-division multiplexing on top of wavelength-division multiplexing technologies. These novel on-chip multiplexing schemes not only have the potential to increase data bandwidth, but can also reduce the power consumption of a system currently utilizing wavelength-division multiplexing by reducing the number of lasers used, driving down energy costs per bit. The asymmetric y-junction waveguide is used as the mode-multiplexing and de-multiplexing unit with relatively low crosstalk levels achievable. It also consists of a design methodology that offers scalable channels. This SiPh multimode waveguide is considered for integration within the microelectronics architecture, leveraging experimentally-demonstrated multiplexing techniques to supply the need for higher on-chip data bandwidth capacity.

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20–22 September 2015
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