Abstract

A high-bandwidth density and low-power optical multichip module (MCM) is developed and demonstrated. The module includes bare optical and driver chips and an application specific integrated circuit bonded on an optical waveguide-integrated organic carrier. Characterization results show that the optical I/O operates up to 20 Gb/s. The high-speed performance is not limited by the electrical characteristics of the carrier but by the optical chip bandwidth. The space between the VCSEL/PD surface and the waveguide is minimized to less than 5 μm by using an assembly technology with chip height control, which results in an average insertion loss of 2.7 dB. Alignment tolerances for a 0.5 dB insertion loss increase are ±5 and 7 μm for the transmitter, and ±6 and 7 μm for the receiver in the parallel and perpendicular directions respectively. This type of organic optical MCM promises to integrate high-bandwidth density and low-power optical I/Os with CMOS ICs on first level packages for next generation high performance computers and servers.

© 2013 IEEE

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References

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2012 (1)

F. E. Doany, "Terabit/s-class optical PCB links incorporating 360-Gb/s bidirectional 850 nm parallel optical transceivers," J. Lightw. Technol. 30 , 560-571 (2012).

J. Lightw. Technol. (1)

F. E. Doany, "Terabit/s-class optical PCB links incorporating 360-Gb/s bidirectional 850 nm parallel optical transceivers," J. Lightw. Technol. 30 , 560-571 (2012).

Opt. Exp. (1)

X. Lin, A. Hosseini, X. Dou, H. Subbaraman, R. T. Chen, "Low-cost board-to-board optical interconnects using molded polymer waveguide with 45 degree mirrors and inkjet-printed micro-lenses as proximity vertical coupler," Opt. Exp. 21, 60-69 ( 2013).

Other (8)

Y. Taira, "OE device integration for optically enabled MCM," Proc 57th Electron. Components Technol. Conf (2007) pp. 1262-1267.

TOP500. [Online]. Available: http://www.top500.org/.

S. Nakagawa, "1.5 mW/Gbps low power optical interconnect transmitter exploiting high-efficiency VCSEL and CMOS driver," Tech Dig Optical Fiber Communication Conf. presented at theSan DiegoCAUSA (2008).

SNAP12. (2005, Dec.). [Online]. Available: http://www.avagotech.co.jp/docs/5989–4524EN.

Roadrunner. (2008). [Online]. Available: http://www.lanl.gov/roadrunner/.

Power 775. (2011, Aug.). [Online]. Available: http://209.240.136.95/ Hardware/IBM-Power-Systems/PDFs/IBM-Power-775-Server.PDF .

A. F. Benner, "Optics for high-performance servers and supercomputers," Tech Dig Optical Fiber Communication Conf. presented at theSan DiegoCAUSA ( 2010, Paper OTuH1).

M. H. Fields, "Transceivers and optical engines for computer and datacenter interconnects," Proc. Tech Dig Optical Fiber Communication Conf. presented at theSan DiegoCAUSA (2010, Paper OTuP1).

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