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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
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Connection cube modules for optical backplanes and fiber networks.

R K Kostuk, D L Ramsey, T J Kim

    Applied Optics
    |July 10, 1997
    PubMed
    Summary

    A novel modular free-space optical system, the connection cube, enables bidirectional data transfer for processing nodes. This optical interconnect technology scales to connect 14 nodes, offering 112 Gbits/s capacity with low power consumption.

    Area of Science:

    • Optoelectronics
    • Optical Interconnects
    • Free-Space Optics

    Background:

    • Traditional interconnects face limitations in bandwidth and scalability.
    • Modular optical systems are crucial for high-performance computing and data centers.

    Purpose of the Study:

    • To introduce and evaluate a modular free-space optical system, the connection cube.
    • To assess its potential as a building block for optical backplanes and interconnect networks.

    Main Methods:

    • Development of a modular connection cube system.
    • Experimental setup for connecting four processing nodes.
    • Analysis of alignment, packaging, dimensional requirements, and scaling.

    Main Results:

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  • The connection cube facilitates bidirectional data transfer between processing nodes.
  • Experimental validation addressed alignment and packaging challenges.
  • Scaling analysis indicates potential for connecting up to 14 nodes.

    • Conclusions:

    • The connection cube is a viable modular building block for optical interconnects.
    • Adapted for vertical-cavity surface-emitting-laser (VCSEL) links, it achieves 112 Gbits/s at 19.6 W.
    • Demonstrates significant potential for future high-capacity, low-power optical networks.