子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | Device for measuring optical frequency modulation characteristics | EP89303703.6 | 1989-04-14 | EP0337796A3 | 1991-04-10 | Iwashita, Katsushi |
A frequency-modulated light signal is introduced into an input 12 of a Mach-Zehnder interferometer 1. The light signals at the outputs 17 and 18 are converted into electrical signals and subtracted, giving an output signal in which the effect of the frequency-modulation is not overwhelmed by the effect of amplitude-modulation of the input signal. |
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| 142 | Systèmes de mesure électrooptiques pour l'analyse fréquentielle de signaux à trés large bande | EP89402016.3 | 1989-07-13 | EP0357475A1 | 1990-03-07 | Loualiche, Slimane; Salin, François |
Un système de mesure électro-optique selon l'invention comprend une source laser à émission continue et faible largeur de raie (1), un modulateur électro-optique (2) et un dispositif de spectroscopie (3). Le modulateur électro-optique fournit une onde lumineuse (LA) modulée linéairement en amplitude par un signal électrique à analyser (V). Cette onde lumineuse modulée a un spectre de fréquence composé d'une raie centrale correspondant à la fréquence d'onde centrale de l'onde lumineuse et de deux bandes latérales représentant chacune le spectre de fréquence du signal électrique. Le dispositif de spectroscopie est constitué par exemple par un interféromètre de FABRY-PEROT à balayage (30), un détecteur optique (31) et un oscilloscope (32). Il reçoit l'onde lumineuse modulée et fournit une représentation du spectre de fréquence du signal électrique. Le système de mesure a une bande passante de l'ordre de 8000 GHz et est adapté pour la caractérisation de composants électroniques et de microcircuits hyperfréquences par des mesures in situ et sans contact. |
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| 143 | Monitoring and controlling radiation source stability | EP87300692.8 | 1987-01-27 | EP0235920A1 | 1987-09-09 | Cameron, Keith Henderson; Smith, David William |
A method and apparatus for monitoring and/or controlling the frequency of a beam of coherent radiation is described. The apparatus comprises a reference source (1) which is controlled to generate a reference radiation beam with a frequency which is repeatedly swept through a range of operating frequencies. This reference beam is combined with a beam of coherent radiation from a test source and the combined beams are fed to a photodiode (9). The output of the photodiode (9) can be displayed so that the upper and lower beat frequencies can be determined enabling the variation of the average of the upper and lower beat frequencies with time to be monitored. Alternatively, the average beat frequency can be fed back as a control signal to control the test beam source (8). In this latter case, the frequency of the test beam will be locked. |
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| 144 | Reducing fluctuations in a radiation beam characteristic | EP87300690.2 | 1987-01-27 | EP0234744A1 | 1987-09-02 | Smith, David William |
A method and apparatus for reducing fluctuations such as phase noise in a characteristic of a coherent beam of radiation is described. The apparatus comprises an interferometer (5) for sensing the fluctuation at the first position to generate an interference beam (6). The interference beam (6) is incident on a radiation detector (7) such as a photodiode which generates an electrical output signal responsive to the intensity of the incident beam. This signal is amplified by an amplifier (8) and fed to a phase modulator (4). Another portion of the original laser beam is also fed to the phase modulator (4). The arrangement is such that the phase modulations applied to the beam by the phase modulator 4 under the control of the signal from the detector (7) reduce or cancel the phase noise in the original beam. |
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| 145 | NANOPATCH ANTENNAS AND RELATED METHODS FOR TAILORING THE PROPERTIES OF OPTICAL MATERIALS AND METASURFACES | PCT/US2015055033 | 2015-10-10 | WO2016108990A3 | 2016-09-22 | MIKKELSEN MAIKEN H; SMITH DAVID R; AKSELROD GLEB M |
| Nanopatch antennas and related methods for enhancing and tailoring are disclosed. According to an aspect, an apparatus includes a conductive material defining a substantially planar surface. The apparatus also includes a conductive nanostructure defining a substantially planar surface. The conductive material and the conductive nanostructure are positioned such that the planar surface of the conductive material faces the planar surface of the conductive nanostructure, such that the planar surfaces are substantially parallel, and such that the planar surfaces are spaced by a selected distance. The apparatus also includes an optically-active material positioned between the planar surfaces. | ||||||
| 146 | OPTICAL PULSE GENERATION USING A HIGH ORDER TRANSFER FUNCTION WAVEGUIDE INTERFEROMETER | PCT/US0014136 | 2000-05-23 | WO0073848A3 | 2001-04-05 | MCBRIEN GREGORY J; KISSA KARL M; HALLEMEIR PETER; GRYK THOMAS JOSEPH |
| An optical pulse generator having a high order transfer function that comprises a first and a second nested interferometric modulator, each modulator comprising an optical input, an electrical input, a first arm, a second arm and an optical output. The second interferometric modulator is optically coupled into the second arm of the first interferometric modulator. The optical output of the first interferometric modulator generates pulses at a repetition rate that is proportional to a multiple of a frequency of an electrical signal applied to the electrical input of at least one of the first and second interferometric modulator and at a duty cycle that is inversely proportional to the order of the transfer function of the optical pulse generator. The multiple may be any integer equal to or greater than one. | ||||||
| 147 | ANTI-FOULING SYSTEM WITH UPCONVERSION FOR GENERATING UV RADIATION | PCT/EP2017081603 | 2017-12-06 | WO2018108645A2 | 2018-06-21 | SALTERS BART ANDRE; NIESSEN EDUARD MATHEUS JOHANNES; PAULUSSEN ELVIRA JOHANNA MARIA; HIETBRINK ROELANT BOUDEWIJN |
| The invention provides an anti-fouling device (10) comprising a window (100), a radiation concentrator optical element (200) and an upconversion element (300), wherein: said window (100) comprises an anti-fouling surface (110) for transmission of at least part of anti-fouling radiation (11) to the external of the device (10), wherein the window (100) is further transmissive for at least part of one or more of visible and IR radiation (1) from external of the device (10); the radiation concentrator optical element (200) is configured for concentrating at least part of said one or more of visible and IR radiation (1); and the upconversion element (300) is configured within the device (10), and is configured for upconverting at least part of said one or more of visible and IR radiation (1) into said anti- fouling radiation (11), wherein said anti-fouling radiation (11) comprises UV radiation. | ||||||
| 148 | GENERATION OF SINGLE OPTICAL TONE, RF OSCILLATION SIGNAL AND OPTICAL COMB IN A TRIPLE-OSCILLATOR DEVICE BASED ON NONLINEAR OPTICAL RESONATOR | PCT/US2012038015 | 2012-05-15 | WO2012158727A3 | 2013-04-25 | MALEKI LUTE; MATSKO ANDREY |
| Techniques and devices based on optical resonators made of nonlinear optical materials to form triple-oscillator devices for generating a single optical tone, a radio frequency (RF) oscillation signal and an optical frequency comb signal having different optical frequencies. | ||||||
| 149 | Imaging module and imaging device | US15101766 | 2015-01-08 | US10110811B2 | 2018-10-23 | Suguru Sangu |
| An imaging module has a spatial light modulation element which applies spatial modulation to an incident luminous flux and emits it; an image sensor which obtains the luminous flux to which the spatial modulation has been applied by the spatial light modulation element as image information; and a fixing part which integrally fixes the spatial light modulation element and the image sensor, and the fixing part has a gap-defining member which is arranged between the spatial light modulation element and the image sensor and forms a gap structure having a certain distance, and an imaging device includes the imaging module. | ||||||
| 150 | PLUGGABLE OPTICAL MODULE AND OPTICAL COMMUNICATION SYSTEM | US15740231 | 2016-06-07 | US20180188456A1 | 2018-07-05 | Isao TOMITA |
| A pluggable optical connector is configured to be insertable into and removable from an optical communication apparatus, and to be capable of communicating a modulation signal and a data signal with the optical communication apparatus. A wavelength-tunable light source is configured to output an output light and a local oscillation light. An optical transmission unit is configured to output an optical signal generated by modulating the output light in response to the modulation signal. An optical reception unit is configured to demodulate an optical signal received by using the local oscillation light to the data signal. Pluggable optical receptors are configured in such a manner that an optical fiber is insertable into and removable from the pluggable optical receptors, and configured to be capable of outputting the optical signal to the optical fiber and transferring the optical signal received thorough the optical fiber to the optical reception unit. | ||||||
| 151 | SYSTEMS AND METHODS FOR DEMODULATION OF FREE SPACE OPTICAL SIGNALS WITHOUT WAVEFRONT CORRECTION | US15717175 | 2017-09-27 | US20180091228A1 | 2018-03-29 | Andrew Kowalevicz; Gary M. Graceffo; Benjamin P. Dolgin |
| Optical signal receivers and methods are provided that include an optical resonator that allows an optical signal to enter and optical signal energy to accumulate at regions inside the optical resonator. A portion of optical signal energy is emitted from among various regions of the optical resonator, such that a combination of the emitted optical signal energy is disturbed when a phase transition occurs in the received optical signal. A detector aligned with the output detects the combined emitted optical signal energy and is configured to detect the disturbance and determine a characteristic of the phase transition in the received optical signal based upon the disturbance. | ||||||
| 152 | Fiber grating demodulation system for enhancing spectral resolution by finely shifting slit | US15292313 | 2016-10-13 | US09869588B2 | 2018-01-16 | Lianqing Zhu; Wei He; Feng Liu; Mingli Dong; Xiaoping Lou; Hong Li; Fei Luo |
| A fiber grating demodulation system for enhancing spectral resolution by finely adjusting a slit, includes a laser pump source, a wavelength division multiplexer, a fiber Bragg grating, a diaphragm, a slit, a collimating mirror, a light splitting grating, an imaging focus mirror, and a linear array detector. The laser pump source, the wavelength division multiplexer, the fiber Bragg grating are connected in sequence, and the wavelength division multiplexer is connected to the diaphragm. Light emitted from the laser pump source is multiplexed by the wavelength division multiplexer and then enters the fiber Bragg grating, a reflection spectrum of the fiber Bragg grating enters the slit of the fiber grating demodulation system as injected light. After passing through the slit, the injected light is reflected by the collimating mirror, the light splitting grating, and the imaging focus mirror in sequence, and is finally converged to the linear array detector. | ||||||
| 153 | Fiber grating demodulation system for enhancing spectral resolution of detector array | US15292347 | 2016-10-13 | US09784619B2 | 2017-10-10 | Lianqing Zhu; Kuo Meng; Fei Luo; Wei He; Feng Liu; Xiaoping Lou; Mingli Dong; Fan Zhang; Hong Li; Wei Zhuang |
| A fiber grating demodulation system for enhancing spectral resolution of a detector array, includes a laser pump source, a wavelength division multiplexer, a fiber Bragg grating, a diaphragm, a slit, a collimating mirror, a light splitting grating, an imaging focus mirror, and a linear array detector. The laser pump source, the wavelength division multiplexer, and the fiber Bragg grating are connected in sequence, and the wavelength division multiplexer is connected to the diaphragm. Light emitted from the laser pump source is multiplexed by the wavelength division multiplexer and then enters the fiber Bragg grating. A reflection spectrum of the fiber Bragg grating enters the slit of the fiber grating demodulation system as injected light. After passing through the slit, the injected light is reflected by the collimating mirror. The light splitting grating, and the imaging focus mirror in sequence, and is finally converged to the linear array detector. | ||||||
| 154 | Fiber grating demodulation system for enhancing spectral resolution by finely rotating light splitting grating | US15292330 | 2016-10-13 | US09784618B2 | 2017-10-10 | Lianqing Zhu; Wei He; Feng Liu; Mingli Dong; Xiaoping Lou; Wei Zhuang; Fei Luo |
| A fiber grating demodulation system for enhancing spectral resolution by finely adjusting a light splitting grating, includes a laser pump source, a wavelength division multiplexer, a fiber Bragg grating, a diaphragm, a slit, a collimating mirror, a light splitting grating, an imaging focus mirror, and a linear array detector. The laser pump source, the wavelength division multiplexer, the fiber Bragg grating are connected in sequence, the wavelength division multiplexer is connected to the diaphragm. Light emitted from the laser pump source is multiplexed by the wavelength division multiplexer and then enters the fiber Bragg grating, a reflection spectrum of the fiber Bragg grating enters the slit of the fiber grating demodulation system as injected light. After passing through the slit, the injected light is reflected by the collimating mirror, the light splitting grating, and the imaging focus mirror in sequence, and is finally converged to the linear array detector. | ||||||
| 155 | OPTICAL UP/DOWN CONVERSION-TYPE OPTICAL PHASE CONJUGATE PAIR SIGNAL TRANSMISSION/RECEPTION CIRCUIT | US15514529 | 2015-09-02 | US20170264366A1 | 2017-09-14 | Takahide SAKAMOTO |
| To provide a method capable of easily compensating waveform distortion due to a non-linear effect caused by a complicated electric circuit, and a device for implementing the method. Provided are a method capable of effectively compensating signal degradation such as waveform distortion due to a nonlinear effect caused by an optical fiber that is an optical transfer path using an optical phase conjugate signal pair at the time of optical up-conversion or down-conversion, and a device capable of implementing the method. This emission device 25 includes an optical modulator 11, a signal source 13, an optical fiber 15, a multiplexing unit 17, a multiplexing local signal source 19, an optical detector 12, and a transmission antenna 23. | ||||||
| 156 | Coherent Optical Imaging for Detecting Neural Signatures and Medical Imaging Applications Using Holographic Imaging Techniques | US15348397 | 2016-11-10 | US20170135583A1 | 2017-05-18 | David W. Blodgett; Mark A. Chevillet; Michael P. McLoughlin |
| A neural imaging system may include an imaging array, an image data processor operably coupled to the imaging array to process image data received from the imaging array, and a beam angle separator disposed between the imaging array and an object being imaged. The beam angle separator may be configured to separate an object beam reflected from the object being imaged into a plurality of reference beams each having different angular separation with respect to the object beam. The image data processor may be configured to generate image data of the object for each one of the reference beams to correspond to a respective different depth within the object. | ||||||
| 157 | OPTICAL RECEIVER AND OPTICAL RECEIVING METHOD | US15317928 | 2015-06-10 | US20170134097A1 | 2017-05-11 | Masao MORIE |
| In order to precisely know the light power of a received signal in a wide light input power range, a light reception device comprises: a reception unit that receives a coherent-modulated signal light and outputs a first electric signal to which the signal light has been converted; an amplification unit that amplifies the first electric signal and outputs the amplified electric signal as a second electric signal; and a control unit that determines the light power of the signal light on the basis of a relationship between the light power of the signal light in the reception unit and at least one of the gain of the amplification unit and the amplitude of the second electric signal. | ||||||
| 158 | Optical functional integrated unit and method for manufacturing thereof | US14764607 | 2013-10-25 | US09577410B2 | 2017-02-21 | Hiroyuki Yamazaki |
| It is provided that an optical functional integrated unit and a method for manufacturing thereof in which a positive optical device and a passive optical device including a silicon waveguide can be readily integrated. An optical functional integrated unit includes a semiconductor optical amplifier, a photonics device, a mounting board, pedestals and. The pedestals and are provided on the mounting board. The semiconductor optical amplifier is mounted on the pedestal and outputs a light from an active layer. The photonics device is mounted on the pedestal. The photonics device includes silicon waveguide to which the light output from the semiconductor optical amplifier is guided. | ||||||
| 159 | Signal processing method of multiple mirco-electro-mechanical system (MEMS) devices and combo MEMS device applying the method | US14676216 | 2015-04-01 | US09563102B2 | 2017-02-07 | Yu-Wen Hsu; Ying-Che Lo; Lu-Po Liao; Chia-Yu Wu |
| This invention provides a signal processing method of multiple micro-electro-mechanical system devices. The signal processing method includes: providing at least two MEMS devices; applying driving or modulating signals of different frequencies to the MEMS devices such that the MEMS devices generate respective MEMS signals with respective frequencies; and combining the MEMS signals with respective frequencies into one or more multi-frequency signals and outputting the multi-frequency signals, wherein a number of the multi-frequency signals is less than a number of the MEMS signals with respective frequencies. This invention also provides a combo MEMS device integrating two or more MEMS devices and two or more vibration sources. | ||||||
| 160 | IMAGING MODULE AND IMAGING DEVICE | US15101766 | 2015-01-08 | US20160316142A1 | 2016-10-27 | Suguru SANGU |
| An imaging module has a spatial light modulation element which applies spatial modulation to an incident luminous flux and emits it; an image sensor which obtains the luminous flux to which the spatial modulation has been applied by the spatial light modulation element as image information; and a fixing part which integrally fixes the spatial light modulation element and the image sensor, and the fixing part has a gap-defining member which is arranged between the spatial light modulation element and the image sensor and forms a gap structure having a certain distance, and an imaging device includes the imaging module. | ||||||
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