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Active Optical NOR Logic Devices Using Surface-Emitting Lasers

IEEE Photonics Technology Letters, 1992
Cascadable active laser logic devices are described, demonstrating NOR and INVERTER functions with negative optical gain of 5. The surface-emitting laser logic device consists of an AlGaAs superlattice surface-emitting laser discretely connected to an ...
J I Song, R E Leibenguth, B Tell
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Optical logic operations in InSb bistable devices

Conference on Lasers and Electro-Optics, 1983
Colin T. Seaton, F. A. P. Tooley, M. R. Taghizadeh, W. J. Firth, S. D. Smith   +4 more
openaire   +3 more sources

Optical Logic Devices

1993
Free-space digital optics relies on optical devices which may be required to play the same role as a transistor in digital electronics. In addition to being an optical port, i.e., a modulator or emitter and a detector, they may also be required to act as a thresholding device. Such devices are called optically bistable (OB).
H. Scott Hinton, J. R. Erickson, T. J. Cloonan, F. A. P. Tooley, F. B. McCormick, A. L. Lentine   +5 more
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All-Optical Logic Devices For Waveguide Optics

SPIE Proceedings, 1985
Requirements for all-optical logic devices for waveguide optics are stated. Existing proposals for such devices are briefly reviewed. The Mach-Zehnder waveguide structure is discussed. The device opportunities offered by the Multiple-Quantum-Well structures are discussed.
Hermann A. Haus, Norman A. Whitaker, Jr.
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Adaptive Optical Logic And Switching Devices

SPIE Proceedings, 1988
Tunable Optical Bistability, where a low power control beam is used to adapt the hysteresis response and the switching of optically bistable elements, is shown to occur in various systems with a bichromatic input. Some applications of this are suggested for more complex logic gates and for pattern recognition.
David Kagan, Harry Friedmann
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Optical Bistable Devices for Memory and Logic

Physica Scripta, 1989
Nonlinear interference filters and liquid crystal cells for low power optical bistability are reviewed. The use of filters for prototype optical circuitry and a proposed cellular-logic-image-processing architecture are ...
B S Wherrett, Y T Chow, A K Rhoomy-Darzi, A D Lloyd   +3 more
openaire   +1 more source

Nanoscale all-optical logic devices

Science China Physics, Mechanics & Astronomy, 2018
Commercial computers based on electronic logic devices have brought great changes to the world. However, traditional electronic devices are suffering from numerous technical challenges in their attempts to continue to satisfy Moore’s law. All-optical logic devices, as promising successors to their electronic counterparts, have become a major focus of ...
Ye Chen, YinKe Cheng, RongBin Zhu, FeiFan Wang, HaoTian Cheng, ZhenHuan Liu, ChongXiao Fan, YuXuan Xue, ZhongCheng Yu, JianKun Zhu, XiaoYong Hu, QiHuang Gong   +11 more
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Semiconductor optical amplifier based optical logic devices

SPIE Proceedings, 2005
All optical Boolean logic functionality has been demonstrated experimentally using integrated semiconductor optical amplifier (SOA) based interferometry at 40 Gb/s. The demonstrated functions are XOR, AND, and OR. The performance of the operations has been analyzed by solving the rate equation of the SOA numerically. The high-speed operation is limited
N. K. Dutta, J. Jaques
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All-optical logic devices with cascaded nonlinear couplers

Applied Optics, 2000
The switching behaviors of cascaded nonlinear couplers were investigated. They have nearly ideal digital-switching characteristics, and their output power levels can be adjusted by means of varying the nonlinear coupling coefficient of the final coupler.
Wang, Y., Wang, Z., Bialkowski, M. E.
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Conservative Optical Logic Devices: COLD

2006
Publisher Summary Conservative optical logic devices (COLD) aim at satisfying needs in niche markets. Where it is applicable, it has uniquely wonderful properties. This chapter describes COLD. Many integrated optical devices on silicon substrates have been developed and many more are being developed that combine small optical components on the same ...
H. John Caulfield, Lei Qian, Chandra S. Vikram, Andrey Zavalin, K. Chouffani, James Hardy, W.J. McCurdy, Jonathan Westphal   +7 more
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