| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | 광신호 증폭 3 단자 장치, 이 장치를 이용한 광신호 전송방법, 광신호 중계 장치 및 광신호 기억 장치 | KR1020057007066 | 2003-09-19 | KR1020050083811A | 2005-08-26 | 마에다요시노부 |
| An optical signal amplifying three- terminal device (10) for directly amplifying an optical signal by using a control input light. A first input light L1 of a first wavelength lambda1 and a second input light L 2 of a second wavelength lambda2 are inputted into a first optical amplifying element (26). A light of the second wavelength lambda 2 and a third input light (control light) L3 of a third wavelength lambda3 outputted from the first optical amplifying element (26) are inputted into a second optical amplifying element (34). An output light L4 of the third wavelength lambda3 selected from the light outputted from the second optical amplifying element (34) is modulated with the intensity variation of the first input light L1 and/or the third input light L3. Therefore, the output light L4 is an amplified signal amplified with a signal amplification factor of 2 or more with respect to the third input light (control light) L3. Thus, an optical signal is directly amplified by using a control input light. | ||||||
| 182 | 반도체 광증폭기를 이용한 전광 ＯＲ 논리소자의 구현장치 | KR1020010059367 | 2001-09-25 | KR100452617B1 | 2004-10-12 | 변영태; 전영민; 김재헌; 이석; 우덕하; 김선호; 김광남 |
| 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-optical OR gate that performs all-optical logic operation by utilizing optical signals transmitted at arbitrary points of optical circuits such as optical computing circuits as the pump signal and the probe signal. | ||||||
| 183 | 전광 ＮＯＲ 논리소자 구현장치 및 그 방법 | KR1020000050420 | 2000-08-29 | KR100368793B1 | 2003-01-24 | 변영태; 김상혁; 우덕하; 이석; 김동환; 김선호 |
| An apparatus and method for realizing an all-optical NOR logic device includes a distributed feedback laser diode and a tunable laser diode respectively generating two pump signals of different wavelengths. The apparatus also includes a pulse generator and a Mach-Zehnder modulator modulating the pump signals. The apparatus also includes a delay line adapted to delay a pump signal that has been split from the modulated pump signals and that travels along one optical path, and a polarization controller and an optical attenuator adapted to control another pump signal that has been split from the modulated pump signals and that travels along another optical path, to have the same polarization and intensity as those of the pump signal passing through the delay line. An Er-doped amplifier amplifies the sum of the pump signals so that the amplified pump signal sum saturates a semiconductor optical amplifier. The semiconductor optical amplifier exhibits gain saturation and wavelength conversion characteristics in response to an output signal from the Er-doped fiber amplifier and a probe signal passing therethrough. A plurality of 50:50 fiber couplers are coupled to respective output ends of the laser diodes, the Mach-Zehnder modulator, the attenuator, and the Er-doped fiber amplifier in order to conduct coupling and splitting operations for the pump signals. | ||||||
| 184 | 전광 ＮＯＲ 논리소자 구현장치 및 그 방법 | KR1020000050420 | 2000-08-29 | KR1020020017221A | 2002-03-07 | 변영태; 김상혁; 우덕하; 이석; 김동환; 김선호 |
| PURPOSE: A device for realizing all-optical NOR logic device and a method thereof are provided to easily obtain the all-optical NOR logic operation at a certain point of a complicated optical circuit arrangement of an optical computer and all-optical signal processing system. CONSTITUTION: A device for realizing all-optical NOR logic device includes pump signal generating elements(DFB-LD, T-LD) for generating pump signals having different wavelength, external modulation elements(PG,MZM) for modulating the generated pump signals, a delay element(DL) for delaying the modulated pump signals separately, control elements(PC,ATTN) for equalizing the polarization and strength of the pump signals passed through the delay element, an amplification element(EDFA) for saturating gains of a semiconductor optical amplifier(SOA) by a sum of the pump signals, the SOA for obtaining operation characteristics of the all-optical NOR logic device by the gate saturation and the wavelength conversion characteristics when a signal of the pump signal sum and a probe signal, and coupling/decoupling elements(10a-10d) connected to rear parts of the pump signal generating element, the modulation element, the control element and the amplification element for coupling or decoupling the pump signals. | ||||||
| 185 | SPINTRONIC OPTICAL DEVICE | PCT/US0116551 | 2001-05-23 | WO0191311A3 | 2002-04-11 | SALZMAN DAVID B |
| An ultra-fast optical apparatus and methods for reading and writing optical intensities are disclosed. A shutter (104) uses a spintronic device exploiting the quantum Faraday effect to sample or modulate the intensity of an optical data stream, preferably as bits in a digital data train (4). The methods set or sample the intensity. A useful application of the methods and apparatus sets or samples optical intensities, taking or putting them , whether in optical or electrical form, optionally at a demultiplexed bus width or data rate. Optical logic, memory and communication devices and methods are disclosed. | ||||||
| 186 | SPINTRONIC OPTICAL SHUTTER | PCT/US0114238 | 2001-05-03 | WO0184726A2 | 2001-11-08 | SALZMAN DAVID B |
| An ultra-fast shutter apparatus and methods for reading and writing optical intensities are disclosed. The shutter uses a spintronic device exploiting the quantum Faraday effect to sample or modulate the intensity of an optical data stream, preferably as bits in a digital data train. The methods set or sample the intensity. A useful application of the methods and apparatus sets or samples optical intensities, taking or putting them, whether in optical or electrical form, optionally at a demultiplexed bus width or data rate. | ||||||
| 187 | DIRECTLY MODULATED SPATIAL LIGHT MODULATOR | PCT/US2010039131 | 2010-06-18 | WO2010148283A3 | 2011-04-14 | PRUCNAL PAUL; GLADNEY GLENN A |
| A directly modulated spatial light modulator (DM-SLM) may be formed using a semiconductor optical amplifier. The directly modulated spatial light modulator may also be formed with a vertical cavity surface emitting laser having an output side; and an anti- reflection coating located on the output side. | ||||||
| 188 | AN OPTICAL SWITCH USING A MICHELSON INTERFEROMETER | PCT/US2010039130 | 2010-06-18 | WO2010148282A3 | 2011-04-14 | PRUCNAL PAUL |
| An optical switch using a Michelson interferometer and differential onset of optical nonlinearity. Modulation of optical signals can occur at speeds that exceed that of electronic devices. | ||||||
| 189 | OPTICAL LOOP DEVICE, OPTICAL SIGNAL DELAY CIRCUIT, FREQUENCY SHIFT METHOD, AND OPTICAL SIGNAL DELAY METHOD | PCT/JP2009053359 | 2009-02-25 | WO2009107632A3 | 2009-10-29 | SHIODA TATSUTOSHI; KUROKAWA TAKASHI |
| A laser pulse is injected into an optical waveguide loop and then either frequency-shifted to generate a laser beam of a desired frequency, or sent around the loop to cause a desired amount of delay. A laser pulse (LP) is injected by an optical path selector (12) and then made to go around an optical waveguide loop. A frequency shifter (13) generates a frequency-shifted laser beam, and then further shifts the frequency-shifted laser beam by just a prescribed frequency interval each time the beam goes around the loop, thereby generating a laser beam frequency-shifted for a prescribed number of cycles. Also, an optical amplifier (14) amplifies the laser pulse circling the optical waveguide loop. Then, the optical path selector (12) emits the frequency-shifted laser beam to the outside of the optical waveguide loop at a prescribed time corresponding to a prescribed number of cycles. | ||||||
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