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An 8-Gb/s optical backplane bus based on microchannel interconnects: design, fabrication, and performance measurements

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3 Author(s)
Kim, G. ; Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA ; Han, Xuliang ; Chen, R.T.

We describe the characteristics of a microchannel-based optical backplane including signal-to-noise ratio (SNR), interconnect distances, and data transfer rates. The backplane employs 250 /spl mu/m-spacing two-dimensional (2-D) vertical cavity surface emitting lasers (VCSELs) and a microlens array to implement 500 /spl mu/m-, 750 /spl mu/m-, and 1-mm optical beam arrays. By integrating the transmitter and a multiplexed polymeric hologram as a deflector/beam-splitter for the guided-wave optical backplane, the result demonstrates a multibus line architecture and its high-speed characteristics. Maximum interconnect distances of 6 cm and 14 cm can be achieved to satisfy 10/sup -12/ bit error rate (BER) using 2/spl times/2 beams of 500 /spl mu/m- and 1 mm-spacing array devices. The total data transfer rate of the developed backplane has shown 8 Gb/s from eye diagram measurements.

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Lightwave Technology, Journal of  (Volume:18 ,  Issue: 11 )