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Proceedings Paper

Kaleidoscopic Optical Backplane For Parallel Processing
Author(s): Jongeling Th. J. M.; Frietman E. E. E.; Moddemeijer K.; Dekker L.
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Paper Abstract

A laboratory model of a hybrid optical interconnect for board to board communication in a multiple broadcast topology has been built. The hybrid structure contains both free space and guided elements. The device is able to connect 9 processing elements each with a 64 bits output word. So 576 parallel output channels are fanned out to 5184 parallel channels. More processors can be interconnected by stacking these units or by making an adaption of the dimensions and lay-out. The fan-out is provided by multiple imaging of the fiber tips in the input plane by an objective lens and a facet mirror. The crosstalk between two neighbouring 250 μm diameter fiber channels with a pitch of 375μm is as good as -28 dB. The performance of this first non-optimized model showed some image distortion and a mismatch in numerical aperture of the fibers and the imaging optics.

Paper Details

Date Published: 14 December 1988
PDF: 5 pages
Proc. SPIE 0991, Fiber Optic Datacom and Computer Networks, (14 December 1988); doi: 10.1117/12.959997
Show Author Affiliations
Jongeling Th. J. M., TNO Institute of Applied Physics (United States)
Frietman E. E. E., Delft University of Technology (The Netherlands)
Moddemeijer K., TNO Institute of Applied Physics (United States)
Dekker L., Delft University of Technology (The Netherlands)

Published in SPIE Proceedings Vol. 0991:
Fiber Optic Datacom and Computer Networks
James E. Hayes; James Pazaris, Editor(s)

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