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Theory of All-Optical GaAs Logic Devices
Topical Meeting on Optical Computing, 1987All-optical semiconductor devices are numerically modeled and optimized using a microscopic theory for the optical nonlinearities of room-temperature GaAs. Single-frequency NOR-gate operation in reflection is predicted.
M.E. Warren, S.W. Koch, H.M. Gibbs
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Diode laser based optical logic devices
SPIE Proceedings, 1990Dispersive optical bistability is reviewed with particular emphasis on trans- mission characteristics, time dependence, cascadability and fan-out capability of bistable diode laser amplifiers. Bistability in inhomogeneously excited diode lasers, gain quenching and polarization bistability are also discussed.
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All-Optical Surface Plasmonic Universal Logic Gate Devices
Plasmonics, 2016We have introduced optically controlled two-stage cascaded surface plasmonic two-mode interference waveguide structure (having silicon core and silver upper and lower cladding) as universal gates. GaAsInP cladding is used in left and right side of core for optical pulse controlled cladding refractive index modulation which controls propagation of ...
Nilima Gogoi, Partha Pratim Sahu
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Three-dimensional optical logic devices using spatial multiwaveguide system
Chinese Optics Letters, 2008Based on the weakly coupled-mode theory, the coupled-mode equations of the spatial multiwaveguide system are presented in general. The intensity distribution in each waveguide is determined by numerical method. Optical logic devices based on spatial multiwaveguide system are proposed.
Jianxia Pan Jianxia Pan +1 more
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Active optical NOR logic devices using surface-emitting lasers
IEEE Photonics Technology Letters, 1992Cascadable active laser logic devices are described, demonstrating NOR and INVERTER functions with a negative optical gain of five. The surface-emitting laser logic device consists of an AlGaAs superlattice surface-emitting laser discretely connected to an AlGaAs heterojunction phototransistor in parallel.
LEE, YH Lee, Yong-Hee +5 more
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Semiconductor optical amplifier based photonic logic devices (Invited Paper)
SPIE Proceedings, 2005All optical XOR, AND, and, OR functionality has been demonstrated experimentally using semiconductor optical amplifier (SOA) based devices at 40 Gb/s, 80 Gb/s. The performance of the optical logic operations has been analyzed by solving the rate equation of the SOA numerically. The high-speed operation is limited by the gain and phase recovery times in
N. K. Dutta +6 more
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All optical logic gates using active plasmonic device block
SPIE Proceedings, 2010We have proposed a novel all-optical logic gates based on active plasmonics that may control the electron-photon coupling through an external effect. The phenomenon of surface plasmon resonance (SPR) is basically appeared on attenuated total reflection mirror block.
Geum-Yoon Oh +3 more
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Use of deformable mirror devices in optical logic functions
Optical Society of America Annual Meeting, 1991Weighted-outer-product processing, a generalization of the bilinear transform, plays an important role in many computing, signal processing, and image processing applications. A technique for the implementation of optical logic functions, the use of such a processor, is presented in this paper.
Mohammed E. Hoq +2 more
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Optical and Electrical Logic Operations by a Liquid Crystal Bistable Optical Device
Japanese Journal of Applied Physics, 1990A liquid crystal bistable optical device (LCBOD) with internal optical feedback is prepared using a twisted nematic (TN) liquid crystal cell, a photoconductive (CdS) cell and a polarizing film. Its picture elements are arranged in a 3×5 matrix structure, and the bistable properties are measured as a function of optical input and electrical input ...
Toshiaki Nose, Susumu Sato
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Module for optical logic circuits using symmetric self-electrooptic effect devices
Applied Optics, 1990An optical module designed to perform cascadable optical logic using arrays of symmetric self-electrooptic effect devices (S-SEEDs) is described. The operation of an array of 7 x 3 devices with optical windows spaced by 20 microm is demonstrated including both array preset and individual device switching.
M E, Prise +6 more
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