An integrated, optically powered, optoelectronic 'smart' logic pixel for interconnection and computing applications

An architecture for optoelectronic interconnection and computing applications, based on the concept of supplying local power to several locations on a 2-D array of circuits using optical means, is described. Optical powering has the advantage of supplying power with reduced crosstalk while simplifying the layout complexity of the arrays. The concept is demonstrated using an integrated and optically powered optoelectronic smart logic pixel that operates variously as a thresholding amplifier, bistable switch/latch, and a signal inverter. The mode of operation is set by the intensity of an optical control beam, and the power is supplied by illumination of an integrated photovoltaic cell array. The circuits are integrated in the InGaAs(P) materials system, and have a bandwidth of 40 MHz, a data beam switching energy of 3.8 pJ, and an optoelectronic gain as high as 11. Analysis of circuit operation and fabrication, as well as comparisons with competing technologies for smart pixel interconnections, are discussed. >

[1]  T. Tanbun-Ek,et al.  High temperature operation of lattice matched and strained InGaAs-InP quantum well lasers , 1991, IEEE Photonics Technology Letters.

[2]  L. D. Hutcheson,et al.  Optical Interconnects For High Speed Computing , 1986 .

[3]  Joseph W. Goodman,et al.  Architectural development of optical data processing systems , 1982 .

[4]  Akio Sasaki,et al.  Light-to-light transducers with amplification , 1988 .

[5]  P. W. Smith.  On the role of photonic switching in future communications systems , 1987, IEEE Circuits and Devices Magazine.

[6]  Jack L. Jewell,et al.  Digital optics , 1989, Proc. IEEE.

[7]  C. A. Burrus,et al.  InP/InGaAs heterojunction phototransistors , 1981 .

[8]  M. Yano,et al.  High temperature characteristics of stripe-geometry InGaAsP/InP double-heterostructure lasers , 1981 .

[9]  Wood,et al.  Electric field dependence of optical absorption near the band gap of quantum-well structures. , 1985, Physical review. B, Condensed matter.

[10]  R. Bhat,et al.  Submilliampere-threshold 1.5- mu m strained-layer multiple quantum well lasers , 1990, IEEE Photonics Technology Letters.

[11]  John E. Midwinter,et al.  Optically interconnected switching networks , 1991 .

[12]  M. Mahalingam.  Thermal management in semiconductor device packaging , 1985, Proceedings of the IEEE.

[13]  J. Shibata,et al.  Integration of 1024 InGaAsP/InP optoelectronic bistable switches , 1990 .

[14]  John E. Midwinter,et al.  Photonic switching technology: component characteristics versus network requirements , 1988 .

[15]  Joe C. Campbell,et al.  InP/InGaAs heterojunction phototransistor with integrated light emitting diode , 1982 .

[16]  George W. Turner,et al.  High‐efficiency InP homojunction solar cells , 1980 .

[17]  Henryk Temkin,et al.  High gain InGaAs/InP heterostructure bipolar transistors grown by gas source molecular beam epitaxy , 1986 .

[18]  K. Zheng,et al.  Cascadable, latching photonic switch with high optical gain by the monolithic integration of a vertical-cavity surface-emitting laser and a pn-pn photothyristor , 1991, IEEE Photonics Technology Letters.

[19]  Noriaki Tsukada,et al.  Complex multistable responses of serially connected optical bistable devices , 1991 .

[20]  Suchul Shin,et al.  Optical multistability using optoelectronic feedback , 1988 .

[21]  K. E. Singer,et al.  The electrical and compositional structure of thin Ni-Cr films☆ , 1979 .

[22]  K. Y. Choi,et al.  p/n InP homojunction solar cells with a modified contacting scheme by liquid phase epitaxy , 1988 .

[23]  M. Govindarajan,et al.  Optically powered optoelectric switch with polarization routing , 1991, IEEE Photonics Technology Letters.

[24]  H. Scott Hinton,et al.  Architectural considerations for photonic switching networks , 1988, IEEE J. Sel. Areas Commun..

[25]  M Govindarajan,et al.  Optically powered arrays for optoelectronic interconnection networks. , 1991, Applied optics.

[26]  F.J. Leonberger,et al.  Optical interconnections for VLSI systems , 1984, Proceedings of the IEEE.

[27]  A.A. Sawchuk,et al.  Digital optical computing , 1984, Proceedings of the IEEE.

[28]  A. Sasaki,et al.  Optoelectronic integrated device with light amplification and optical bistability , 1984, IEEE Transactions on Electron Devices.

[29]  D. Schroder,et al.  Contact resistance: Its measurement and relative importance to power loss in a solar cell , 1984, IEEE Transactions on Electron Devices.

[30]  J. E Midwinter.  Digital optics, smart interconnect or optical logic? I , 1988 .

[31]  F. Hegner.  The industrial production of high quality nickel-chromium resistors with controlled temperature coefficients of resistance☆ , 1979 .

[32]  G. R. Olbright,et al.  Surface-emitting laser logic , 1992 .