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Multiwavelength parallel optical interconnects for massively parallel processing
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DOI：10.1109/JSTQE.2003.813313.png)
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We describe a multiwavelength, multifiber (parallel) optical interconnect based on multimode fiber ribbon cables with applications in massively parallel processing systems. By combining the benefits of parallel optics and coarse wavelength division multiplexing high aggregate throughputs are possible in a broadcast and select architecture that provides a single hop to all nodes. We identify the key components needed for such a system and report on our component development efforts for multiwavelength parallel optical interconnects. System components reported herein include a four-wavelength bit-parallel transmitter using a silicon optical bench and hybrid packaging, and two-port and three-port wavelength selective filter modules packaged to be compatible with mechanically transferable ferrule terminated ribbon cables. The transmitters were modulated up to 1.25 Gb/s with a bit-error rate better than 10(-12) and no measurable power penalty due to multiple wavelength bit parallel operation. The filters exhibited insertion losses of between I and 2 dB and would support 10 nm spaced channels at -23-dB crosstalk.
Keyword:
coarse WDM
massively parallel processing interconnects
multiwavelength bit parallel transmitters
multiwavelength parallel optical interconnects
WDM filter modules
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5.6K
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