Multichannel free-space intrachip optical interconnections: combining plastic micro-optical modules and VCSEL-based OE-FPGA

Christof Debaes; Michael Vervaeke; Valerie Baukens; Wim Meeus; Patrik Tuteleers; Marnik Brunfaut; Jan M. Van Campenhout; Hugo Thienpont

doi:10.1117/12.469577

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3 June 2002 Multichannel free-space intrachip optical interconnections: combining plastic micro-optical modules and VCSEL-based OE-FPGA

Christof Debaes, Michael Vervaeke, Valerie Baukens, Wim Meeus, Patrik Tuteleers, Marnik Brunfaut, Jan M. Van Campenhout, Hugo Thienpont

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Proceedings Volume 4652, Optoelectronic Interconnects, Integrated Circuits, and Packaging; (2002) https://doi.org/10.1117/12.469577
Event: Symposium on Integrated Optoelectronic Devices, 2002, San Jose, California, United States

Abstract

We fabricated and replicated in semiconductor compatible plastics a multichannel free-space optical interconnection module designed to establish intra-chip interconnections on an Opto-Electronic Field Programmable Gate Array (OE-FPGA). The micro-optical component is an assembly of a refractive lenslet-array and a high-quality microprism. Both components were prototyped using deep lithography with protons and were monolithically integrated using a vacuum casting replication technique. The resulting 16-channel module shows optical transfer efficiencies of 50% and interchannel crosstalks as low as -22 dB. These characteristics are sufficient to establish multichannel intra-chip interconnects with OE- FPGAs. The OE-FPGA we used was designed within a European co- founded MEL-ARI consortium, working towards a manufacturable solution for optical interconnects between CMOS ICs. The optoelectronic chip combines fully functional FPGA digital logic with the drivers, receivers and flip-chipped optoelectronic components. It features 2 optical inputs and 2 optical outputs per FPGA cell, amounting to 256 photonic I/O links based on multimode 980-nm VCSELs and InGaAs detectors.

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Christof Debaes, Michael Vervaeke, Valerie Baukens, Wim Meeus, Patrik Tuteleers, Marnik Brunfaut, Jan M. Van Campenhout, and Hugo Thienpont "Multichannel free-space intrachip optical interconnections: combining plastic micro-optical modules and VCSEL-based OE-FPGA", Proc. SPIE 4652, Optoelectronic Interconnects, Integrated Circuits, and Packaging, (3 June 2002); https://doi.org/10.1117/12.469577

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