Plastic microoptical interconnection modules for parallel free-space interand intra-MCM data communication

We design and fabricate a prototype scalable multichannel free-space interconnection module with the potential for Tb/s/spl middot/cm/sup 2/ aggregate bit-rate capacity over inter- and intra-MCM interconnection distances. The component is fabricated in a high quality optical plastic, PMMA, using deep proton lithography, an ion-based rapid prototyping technology. As a feasibility demonstration, data communication is achieved at 622 Mb/s per channel with a bit error rate smaller than 10/sup -13/ for 16 channels with an interchannel crosstalk lower than -22 dB. We perform a sensitivity analysis for misalignments and fabrication errors and study the fabrication issues of these components with injection molding techniques. Finally, we provide evidence that these modules can be mass fabricated with the required precision.

[1]  Ingrid Moerman,et al.  Microcavity LED-based parallel data link using small-diameter (125 m) plastic optical fibres , 1999 .

[2]  Kent D. Choquette,et al.  Foundary fabricated array of smart pixels integrating MESFETs/MSMs and VCSELs , 1997 .

[3]  D.V. Plant,et al.  Optical interconnects at the chip and board level: challenges and solutions , 2000, Proceedings of the IEEE.

[4]  J. Ko,et al.  Flip-chip bonded arrays of monolithically integrated, microlensed vertical-cavity lasers and resonant photodetectors , 1999, IEEE Photonics Technology Letters.

[5]  P. McNally,et al.  A comparative study of Pd/Sn/Au, Au/Ge/Au/Ni/Au, Au-Ge/Ni and Ni/Au-Ge/Ni ohmic contacts to n-GaAs , 1998 .

[6]  Ray T. Chen,et al.  Fully embedded board-level guided-wave optoelectronic interconnects , 2000, Proceedings of the IEEE.

[7]  Y. Li,et al.  Board-level 2-D data-capable optical interconnection circuits using polymer fiber-image guides , 2000, Proceedings of the IEEE.

[8]  Maria Kufner,et al.  Micro-Optics and Lithography , 1997 .

[9]  A.F.J. Levi,et al.  Optical interconnects in systems , 2000, Proceedings of the IEEE.

[10]  Ashok V. Krishnamoorthy,et al.  Firehose Architectures for Free-Space Optically Interconnected VLSI Circuits , 1997, J. Parallel Distributed Comput..

[11]  Andreas Neyer,et al.  64 channel 2D POF-based optical array interchip interconnect , 1999 .

[12]  Jan Van Campenhout.  Optics and the CMOS interconnection problem: a systems and circuits perspective. , 1998 .

[13]  Predrag Milojkovic,et al.  Description and evaluation of the FAST-Net smart pixel-based optical interconnection prototype , 2000 .

[14]  D. Kossives,et al.  Clocked-sense-amplifier-based smart-pixel optical receivers , 1996, IEEE Photonics Technology Letters.

[15]  W. S. Hobson,et al.  Vertical-cavity surface-emitting lasers flip-chip bonded to gigabit-per-second CMOS circuits , 1999, IEEE Photonics Technology Letters.

[16]  Chi Fan,et al.  Power minimization and technology comparisons for digital free-space optoelectronic interconnections , 1999 .

[17]  R. Jurrat,et al.  8/spl times/8 array of smart pixels fabricated through the Vitesse foundry integrating MESFET, MSM, and VCSEL elements , 1996, Digest IEEE/Leos 1996 Summer Topical Meeting. Advanced Applications of Lasers in Materials and Processing.

[18]  Kent D. Choquette,et al.  Comparison of techniques for bonding VCSELs directly to ICs , 1998, Other Conferences.

[19]  M.W. Haney,et al.  Description and evaluation of the FAST-Net smart pixel-based optical interconnection prototype , 2000, Proceedings of the IEEE.

[20]  J. P. Menendez,et al.  THE ADVANTAGES OF PLASTIC OPTICAL COMPONENTS , 1999 .

[21]  David A. B. Miller,et al.  Limit to the Bit-Rate Capacity of Electrical Interconnects from the Aspect Ratio of the System Architecture , 1997, J. Parallel Distributed Comput..

[22]  Kent D. Choquette,et al.  Comparison of techniques for bonding VCSELS directly to ICs , 1999 .

[23]  Ashok V. Krishnamoorthy,et al.  Scaling optoelectronic-VLSI circuits into the 21st century: a technology roadmap , 1996 .

[24]  D.A.B. Miller,et al.  Rationale and challenges for optical interconnects to electronic chips , 2000, Proceedings of the IEEE.

[25]  R. Michalzik,et al.  Highly efficient oxide-confined VCSEL arrays for parallel optical interconnects , 1999 .

[26]  J. Genoe,et al.  Demonstration of a monolithic multichannel module for multi-Gb/s intra-MCM optical interconnects , 1998, IEEE Photonics Technology Letters.

[27]  Kai Shum,et al.  Clock delivery using laminated polymer fibre circuits , 1999 .

[28]  W. Ehrfeld,et al.  Micro-Optics for Optical Interconnects in Automotive Applications , 2000 .

[29]  Roel Baets,et al.  Introduction to the issue on smart photonic components, interconnects, and processing , 1999 .

[30]  Hugo Thienpont,et al.  Performances of optical multi-chip-module interconnects: comparing guided-wave and free-space pathways , 1999 .