TY - GEN
T1 - A high-speed optical multi-drop bus for computer interconnections
AU - Tan, Michael
AU - Rosenberg, Paul
AU - Yeo, Jong Souk
AU - McLaren, Moray
AU - Mathai, Sagi
AU - Morris, Terry
AU - Straznicky, Joseph
AU - Jouppi, Norman P.
AU - Kuo, Huei Pei
AU - Wang, Shih Yuan
AU - Lerner, Scott
AU - Kornilovich, Pavel
AU - Meyer, Neal
AU - Bicknell, Robert
AU - Otis, Charles
AU - Seals, Len
PY - 2008
Y1 - 2008
N2 - Buses have historically provided a flexible communications structure in computer systems. However, signal integrity constraints of high-speed electronics have made multi-drop electrical busses infeasible. Instead, we propose an optical data bus for computer interconnections. It has two sets of optical waveguides, one as a fan-out and the other as a fan-in, that are used to interconnect different modules attached to the bus. A master module transmits optical signals which are received by all the slave modules attached to the bus. Each slave module in turn sends data back on the bus to the master module. Arrays of lasers, photodetectors, waveguides, microlenses, beamsplitters and Tx/Rx integrated circuits are used to realize the optical data bus. With ImW of laser power, we are able to interconnect 8 different modules at 10 Gb/s per channel. An aggregate bandwidth of over 25 GB/s is achievable with 10 bit wide signaling paths.
AB - Buses have historically provided a flexible communications structure in computer systems. However, signal integrity constraints of high-speed electronics have made multi-drop electrical busses infeasible. Instead, we propose an optical data bus for computer interconnections. It has two sets of optical waveguides, one as a fan-out and the other as a fan-in, that are used to interconnect different modules attached to the bus. A master module transmits optical signals which are received by all the slave modules attached to the bus. Each slave module in turn sends data back on the bus to the master module. Arrays of lasers, photodetectors, waveguides, microlenses, beamsplitters and Tx/Rx integrated circuits are used to realize the optical data bus. With ImW of laser power, we are able to interconnect 8 different modules at 10 Gb/s per channel. An aggregate bandwidth of over 25 GB/s is achievable with 10 bit wide signaling paths.
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U2 - 10.1109/HOTI.2008.15
DO - 10.1109/HOTI.2008.15
M3 - Conference contribution
AN - SCOPUS:57849155822
SN - 9780769533803
T3 - Proceedings - Symposium on the High Performance Interconnects, Hot Interconnects
SP - 3
EP - 10
BT - Proceedings - 16th Annual IEEE Symposium on High-Performance Interconnects, HOT Inteconnects
T2 - 16th Annual IEEE Symposium on High-Performance Interconnects, HOT Interconnects
Y2 - 26 August 2008 through 28 August 2008
ER -