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Proceedings Paper

Photonic interconnects to silicon chips
Author(s): Christof Debaes; Michael Vervaeke; Valerie Baukens; Heidi Ottevaere; Pedro Vynck; Patrik Tuteleers; Bart Volckaerts; Wim Meeus; Marnix Brunfaut; Jan Van Campenhout; Alex Hermanne; Hugo Thienpont
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Paper Abstract

A multi-channel free-space micro-optical module for dense MCM-level optical interconnections has been designed and fabricated. Extensive modeling proves that the module is scalable with a potential for multi-Tb/s.cm2 aggregate bit rate capacity while alignment and fabrication tolerances are compatible with present-day mass replication techniques. The micro-optical module is an assembly of refractive lenslet-arrays and a high-quality micro-prism. Both components are prototyped using deep lithography with protons and are monolithically integrated using vacuum casting replication technique. The resulting 16-channel high optical-grade plastic module shows optical transfer efficiencies of 46% and inter-channel cross talks as low as -22 dB, sufficient to establish workable multi-channel MCM-level interconnections. This micro-optical module was used in a feasibility demonstrator to establish intra-chip optical interconnections on a 0.6μm CMOS opto-electronic field programmable gate array. This opto-electronic chip combines fully functional digital logic, driver and receiver circuitry and flip-chipped VCSEL and detector arrays. With this test-vehicle multichannel on-chip data-communication has been achieved for the first time to our knowledge. The bit rate per channel was limited to 10Mb/s because of the limited speed of the chip tester.

Paper Details

Date Published: 6 July 2004
PDF: 15 pages
Proc. SPIE 5359, Quantum Sensing and Nanophotonic Devices, (6 July 2004); doi: 10.1117/12.518315
Show Author Affiliations
Christof Debaes, Vrije Univ. Brussel (Belgium)
Michael Vervaeke, Vrije Univ. Brussel (Belgium)
Valerie Baukens, Vrije Univ. Brussel (Belgium)
Heidi Ottevaere, Vrije Univ. Brussel (Belgium)
Pedro Vynck, Vrije Univ. Brussel (Belgium)
Patrik Tuteleers, Vrije Univ. Brussel (Belgium)
Bart Volckaerts, Vrije Univ. Brussel (Belgium)
Wim Meeus, Univ. Gent (Belgium)
Marnix Brunfaut, Univ. Gent (Belgium)
Jan Van Campenhout, Univ. Gent (Belgium)
Alex Hermanne, Vrije Univ. Brussel (Belgium)
Hugo Thienpont, Vrije Univ. Brussel (Belgium)

Published in SPIE Proceedings Vol. 5359:
Quantum Sensing and Nanophotonic Devices
Manijeh Razeghi; Gail J. Brown, Editor(s)

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