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JP2006330403A |
To achieve all-optical logic operation per bit, which doesn't require current control and allows ultra-high-speed operation.This all-optical logic operation method includes a first step of making a plurality of optical pulse signals (opt...
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JP3854059B2 |
To provide a practicable quantum information processing method having a sufficient coherency in which a quantum bit can be distinguished and defined regardless of its space position, wiring nor microfabrication is not needed, the degree ...
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JP3854074B2 |
To provide a processing method and system of performing arithmetic processings, to determine similarity, correlation, etc., of two different time series light signals by a light signal system. The two different time series light signals ...
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JP3837485B2 |
To solve the problem that a phase relaxation time is very short in conventional proposals by Barenco, etc., because of the use of inter-subband electrons and the problem that technology of a very-short light pulse laser is not available ...
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JP3829173B2 |
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JP3825498B2 |
To improve contrast ratio and enable operation of low input power, by applying a variable bias potential across a gate electrode and other electrical contact, and changing the bias potential applied to the gate electrode. A metal Schottk...
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JP2006215484A |
To conduct desired arithmetic processing with respect to propagating light with a multiplexed frequency just as it is, without being controlled by a diffraction limit of light by finding a photophysical phenomenon peculiar to a quantum d...
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JP3809908B2 |
To provide an optical path switching apparatus and a method for switching optical path by which angles and directions for switching optical paths can be freely determined without depending on polarized waves, attenuation in the intensity...
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JP3809948B2 |
To provide a polarization mode dispersion suppressing apparatus wherein an exOR circuit is normally in operation even when an intensity difference of TE/TM polarization components is great and capable of excellently suppressing the polar...
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JP3806800B2 |
To provide an optical operational amplifying device which operates and amplifies light signals. The optical operational amplifying device 2 has optical transmitting media 8, 10 containing erbium elements and showing functions of optical ...
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JP3805286B2 |
To realize an all-optical half adder by an XOR logic element and an AND logic element by using an element with semiconductor optical amplifiers as a base. A pump signal and an irradiation signal are made incident together on the two semi...
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JP3781015B2 |
To realize an optical signal processor capable of high-speed operation. The optical signal processor is provided with at least one photo diode for converting an optical signal to an electric signal and a resonance tunnel diode which take...
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JP3776500B2 |
To provide a multiplexing optical system which is necessary to speedingly and precisely transform inputted information into effective feature vectors without omitting spatial frequency components of multiplexed process object vectors, an...
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JP3773774B2 |
To provide a multiple-light-source compact and parallel coupling and converting correlation device capable of realizing drastic miniaturization and parallelization and the reduction of the dispersion of correlation value in the spatial d...
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JP3768413B2 |
To provide a light wave merging/branching method for optical wavelength division multiplex communication capable of the withdrawal of a packet unit at an ultra high speed in a WDM network, and a device therefor. An optical label selector...
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JP3756948B2 |
PCT No. PCT/GB94/01953 Sec. 371 Date Mar. 8, 1996 Sec. 102(e) Date Mar. 8, 1996 PCT Filed Sep. 8, 1994 PCT Pub. No. WO95/07583 PCT Pub. Date Mar. 16, 1995A method of communication based on quantum cryptography is modified to include an i...
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JP3748236B2 |
The present invention is related to an all-optical OR device embodied by using the gain saturation and wavelength conversion characteristics of semiconductor optical amplifier (SOA), and more particularly, to a technique to embody an all...
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JP3743881B2 |
To provide a method and device capable of converting the time variation of an ultra-short optical pulse spectrum into a two-dimensional spatial distribution at a high conversion efficiency without necessity of repeating pulse incidence a...
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JP2006023505A |
To provide an arithmetic circuit with which arithmetic processing, such as summing and summing of products and so on is carried out, without being influenced by a diffraction limit of light by finding a photophysical phenomenon distinct ...
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JP3738991B2 |
To carry out optical exOR operation at high speed. In a position shifted from a midpoint of an optical fiber (loop waveguide) 51 of a loop type interference device 50, an XPM type wavelength transformation element 1 is intervened. Contin...
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JP3737402B2 |
To provide a simple optical signal reproducing inverter using a mode synchronized integrated type semiconductor laser and having digital characteristics of high performance and high flexibility in used frequency. CW light of wavelength Î...
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JP3734830B2 |
PCT No. PCT/GB94/01955 Sec. 371 Date Apr. 22, 1996 Sec. 102(e) Date Apr. 22, 1996 PCT Filed Sep. 8, 1994 PCT Pub. No. WO95/07585 PCT Pub. Date Mar. 16, 1995In a communication system using quantum cryptography for the distribution of a ke...
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JP3718234B2 |
Devices useful for storage of information which comprises mixtures of suitable chiral materials with nematic liquid crystals and in which by irradiation with light of two different wavelengths the chirality of the mixture can be reversib...
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JP2005309447A |
To provide quadrature amplitude modulation (QAM) of optical carriers which encodes five or more signal points onto the optical carrier for each encoding interval in relation to modulation of the optical carriers.The quadrature amplitude ...
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JP2005532599A |
A molecular system is provided for electric field activated switches, such as optical switches. The molecular system has an electric field induced band gap change that occurs via a molecular conformation change, based on a rotor/stator c...
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JP3699493B2 |
PURPOSE: To provide an optical memory which can extend a storage time com paring with a conventional simple loop type optical memory without sacrificing the efficiency. CONSTITUTION: A first loop memory having a first circulating time, a...
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JP2005234526A |
To provide a whole optical functional operation element which can be applied to a logic operation, a counting operation, and the like.The whole optical functional operation element has a structure of a plurality of quantum dots wherein t...
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JP2005524127A |
A method and apparatus for performing logic operations using quantum polarization states of single photons, include a first polarizing beam splitter having first input spatial modes and first output spatial modes for a first set of ortho...
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JP3682266B2 |
To provide a single photon producing element capable of producing a single photon pulse repeatedly without using a coherent electromagnetic wave source for producing a π pulse. The single photon producing element has an energy level str...
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JP3679188B2 |
To provide an optical spacial filtering device capable of selecting only a narrow spacial frequency with high accuracy whose size of a space performing filtering action is about 10nm at minimum by using interaction in the proximity field...
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JP2005173530A |
To provide a for light signal processing method and device which processes coding and quantization with a light signal and which can process at higher speed.An optical coding circuit 200 optically codes pulse trains of a signal light hav...
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JP3666317B2 |
To prevent particularly signal delay and malfunction in a reception circuit side in a circuit transmitting/receiving a logic signal through a capacitor. A source voltage of a buffer 410 transmitting the logic signal in a transmission cir...
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JP3664305B2 |
To provide a polarization mode dispersion compensating device which can change a bit rate, does not affect a feedback system even when '10' codes appear consecutively, and can be formed by using a low speed photodetector. An input optica...
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JP3660987B2 |
To provide a silicon-based optical device which enables to realize a new photoelectronic integrated circuit or a new optical arithmetic device. A photochemical etching silicon 1 produced by a photochemical etching method has characterist...
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JP3656152B2 |
To provide a quantum bit element structure and a quantum correlation gate element structure in a quantum computer, which can realize quantum bit and quantum correlation gate. A quantum dot 12 having a quantum level 16 and a quantum dot 1...
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JP3653868B2 |
To achieve high speed processing while reducing power consumption significantly by performing a logical sum, a logical product or a composite operation thereof based on a tact that the tunneling to a lowest energy level is prohibited by ...
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JP3652945B2 |
To provide a mall and integrated optical information processing device of multiple arrays, high density, and multiple pixels which is used for optical computing and optical image processing, etc. A light-emitting element array 11, where ...
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JP3650348B2 |
To provide a frequency selective optical filter which does not output an unnecessary light beam and is little in cross talk light. Input optical paths 1 and output optical paths 2 are connected to a waveguide pair in the first input and ...
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JP3645261B2 |
PCT No. PCT/GB94/01952 Sec. 371 Date Mar. 7, 1996 Sec. 102(e) Date Mar. 7, 1996 PCT Filed Sep. 8, 1994 PCT Pub. No. WO95/07582 PCT Pub. Date Mar. 16, 1995In a method of quantum cryptography, a transmitter (T) communicates on a quantum ch...
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JP3638951B2 |
A pattern recognition apparatus and a method for operating same. The apparatus includes a volume holographic medium (4) having a plurality of Fourier-space volume holograms representing pattern templates stored within. The apparatus furt...
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JP3632081B2 |
To monitor whether or not an optical signal to be monitored is changed from the original in the state of an optical signal level. This optical signal monitoring device for monitoring an optical signal added with a parity bit so that the ...
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JP3630782B2 |
PURPOSE: To accept negative numbers and to effectively perform linear arithmetic operations over the wide range from the negative value to the positive value in the optical computer which performs inner product arithmetic operation betwe...
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JP2005055809A |
To perform logical operation by optical wiring in a simple structure.The optical wiring 1A has a Y-shape core 2 composed of a first core 5a and a second core 5b branched into two lines and a third core 5c coupling the first core 5a and t...
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JP2005003846A |
To arithmetic process ultrafast optical signals in a light region without once converting them into the electric signals and to solve the problem of delay associated with conversion into electric signals.The arithmetic unit has an optica...
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JP3607622B2 |
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JP2004318096A |
To easily realize the generation of a Bell state, Bell measurement, and controlled-NOT gate conversion.A quantum state generating device is equipped with an input means of inputting two particles e+ and e- having no correlation in a 2-qu...
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JP2004309679A |
To provide an optical buffer circuit which is capable of high-speed operation without requiring photoelectric conversion or electric-photo conversion and which can arbitrarily vary the storage time.The optical buffer circuit includes a l...
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JP3585452B2 |
To provide an optical operation device which is applicable to an optical operation system and has an organic multilayered thin-film structure based on a principle not existing heretofore. An organic optical operation element 80 which has...
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JP2004296075A |
To provide an optical cache memory of a low-cost constitution, and a method for making an optical cache memory which stores optical signals.The optical memory (10) has an input port (12) for receiving optical signals to store in the opti...
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JP3575518B2 |
To directly and easily convert parallel signal lights being spatially one dimensional or two dimensional multiple channels into the serial signal light of such a high bit rate as to be equal to or higher than 1T bits/s. Line shaped optic...
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