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 |
|---|---|---|---|---|---|---|
| 201 | Pyroelectric radiation detection system with extended frequency range and reduced capacitance | US3480777D | 1969-02-28 | US3480777A | 1969-11-25 | ASTHEIMER ROBERT W |
| 202 | Acoustical light signal-translating apparatus | US3431504D | 1964-08-10 | US3431504A | 1969-03-04 | ADLER ROBERT |
| 203 | Infrared modulators and detectors employing single crystal te or se | US51597365 | 1965-12-23 | US3414728A | 1968-12-03 | PATEL CHANDRA K N |
| 204 | Light beam demodulator | US27004263 | 1963-04-02 | US3403257A | 1968-09-24 | PETROFF MICHAEL D |
| 205 | Photosensitive broadband coupler using wave guide | US26720963 | 1963-03-22 | US3244890A | 1966-04-05 | WITTWER JR NORMAN C |
| 206 | Detector for varying carrier frequency signals | US22597962 | 1962-09-25 | US3220003A | 1965-11-23 | MONTAGUE III HILL; GERIG JOHN S; HOFFMANN GERHARD E |
| 207 | COHERENT OPTICAL MIXER CIRCUIT | US15568610 | 2016-05-27 | US20180143376A1 | 2018-05-24 | Shin Kamei; Makoto Jizodo; Hiroshi Fukuda; Kiyofumi Kikuchi; Ken Tsuzuki |
| A coherent optical mixer circuit is provided that can measure a phase error without requiring a step of cutting away a delay circuit. Odd-numbered or even-numbered two of four inputs of an 4-input-and-4-output multimode interference circuit are connected to an input mechanism. The four outputs of the multimode interference circuit are all connected to an output mechanism to the exterior. Other two inputs of the multimode interference circuit are connected to two monitor waveguides. One of the monitor waveguide is longer than the other to configure a light delay circuit. The monitor waveguides constituting the light delay circuit are connected to the respective outputs of a 2-branched light splitter. The 2-branched light splitter has an input connected to a monitor light input mechanism from the exterior via a monitor input waveguide. | ||||||
| 208 | Microwave to Optical Conversion Device and Method for Converting a Microwave Photon to an Optical Photon | US15442730 | 2017-02-27 | US20170248832A1 | 2017-08-31 | Tobias Kippenberg; Clement Javerzac-Galy |
| A microwave to optical conversion device comprising: a superconducting microwave resonator, and an optical resonator including an electro-optical material, the superconducting microwave resonator and the optical resonator being arranged one with respect to the other so as to be electro-magnetically coupled. | ||||||
| 209 | Coherent Optical Imaging for Detecting Neural Signatures and Medical Imaging Applications Using Common-Path Coherent Optical Techniques | US15348604 | 2016-11-10 | US20170135581A1 | 2017-05-18 | David W. Blodgett; Mark A. Chevillet; Scott M. Hendrickson; Michael P. McLoughlin |
| Example apparatuses and methods relating to imaging systems are provided. An example imaging system may include an optical source configured to generate an optical beam, a beam splitter configured to split the optical beam into a reference beam and an object beam, and a beam combiner configured to route a combined beam with reference beam and object beam components along a common path into a target medium. In this regard, the target medium may act upon the combined beam to form a common path interference beam. The example imaging system may further include an imaging sensor configured to receive the common path interference beam and generate common path interference beam data associated with the common path interference beam, and an image data processor configured to analyze the common path interference beam data to generate image data describing the target medium. | ||||||
| 210 | FIBER GRATING DEMODULATION SYSTEM FOR ENHANCING SPECTRAL RESOLUTION BY FINELY ROTATING IMAGING FOCUS MIRROR | US15292244 | 2016-10-13 | US20170108378A1 | 2017-04-20 | Lianqing Zhu; Wei He; Xiaoping Lou; Feng Liu; Mingli Dong; Fei Luo; Wei Zhuang |
| A fiber grating demodulation system for enhancing spectral resolution by finely adjusting an imaging focus mirror, 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, 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. | ||||||
| 211 | FIBER GRATING DEMODULATION SYSTEM FOR ENHANCING SPECTRAL RESOLUTION OF DETECTOR ARRAY | US15292347 | 2016-10-13 | US20170102269A1 | 2017-04-13 | 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. | ||||||
| 212 | FIBER GRATING DEMODULATION SYSTEM FOR ENHANCING SPECTRAL RESOLUTION BY FINELY SHIFTING SLIT | US15292313 | 2016-10-13 | US20170102268A1 | 2017-04-13 | 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. | ||||||
| 213 | Fiber grating demodulation system for enhancing spectral resolution by finely adjusting a collimating mirror | US15292224 | 2016-10-13 | US09574939B1 | 2017-02-21 | Lianqing Zhu; Wei He; Feng Liu; Fei Luo; Mingli Dong; Xiaoping Lou; Fan Zhang |
| A fiber grating demodulation system for enhancing spectral resolution by finely adjusting a collimating mirror, 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, a linear array detector. The laser pump source, the wavelength division multiplexer, and 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. | ||||||
| 214 | Near-field enhanced photon conversion | US14100497 | 2013-12-09 | US09432587B1 | 2016-08-30 | David R. Twede; Matthew G. Comstock; Clara R. Baleine |
| A photon conversion assembly. The photon conversion assembly includes a first plurality of photon conversion particles configured to convert photons in a first received band to photons in a first converted band, and a second plurality of photon conversion particles configured to convert photons in a second received band to photons in a second converted band. A first plasmonic near-field enhancement material that enhances an attraction of photons in the first received band is positioned in proximity to at least some of the first plurality of photon conversion particles, and a second plasmonic near-field enhancement material that enhances an attraction of photons in the second received band is positioned in proximity to at least some of the second plurality of photon conversion particles. | ||||||
| 215 | SIGNAL PROCESSING METHOD OF MULTIPLE MIRCO-ELECTRO-MECHANICAL SYSTEM (MEMS) DEVICES AND COMBO MEMS DEVICE APPLYING THE METHOD | US14676216 | 2015-04-01 | US20150355523A1 | 2015-12-10 | 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. | ||||||
| 216 | X-ray multiband emission and conversion | US14210809 | 2014-03-14 | US09157872B1 | 2015-10-13 | David R. Twede |
| A system for emitting X-ray energy is disclosed. An X-ray emitter emits photons in a first X-ray band toward a first photon conversion layer. The first photon conversion layer receives the photons in the first X-ray band and converts the photons in the first X-ray band to photons in a plurality of different second predetermined X-ray bands. The first photon conversion layer emits the photons in the plurality of different second predetermined X-ray bands in a downstream direction toward a second photon conversion layer. | ||||||
| 217 | Two-dimensional Planar Lightwave Circuit Integrated Spatial Filter Array and Method of Use Thereof | US14212822 | 2014-03-14 | US20150277209A1 | 2015-10-01 | Jun Ai; Fedor Dimov |
| A large coherent two-dimensional (2D) spatial filter array (SFA), 30 by 30 or larger, is produced by coupling a 2D planar lightwave circuit (PLC) array with a pair of lenslet arrays at the input and output side. The 2D PLC array is produced by stacking a plurality of chips, each chip with a plural number of straight PLC waveguides. A pupil array is coated onto the focal plane of the lenslet array. The PLC waveguides are produced by deposition of a plural number of silica layers on the silicon wafer, followed by photolithography and reactive ion etching (RIE) processes. A plural number of mode filters are included in the silica-on-silicon waveguide such that the PLC waveguide is transparent to the fundamental mode but higher order modes are attenuated by 40 dB or more. | ||||||
| 218 | Systems and methods for a polarization matched resonator fiber optic gyroscope | US14158641 | 2014-01-17 | US09097526B1 | 2015-08-04 | Glen A. Sanders; Lee K. Strandjord; Tiequn Qiu; Jianfeng Wu |
| Systems and methods for a polarization matched resonator fiber optic gyroscope are provided. In one embodiment an RFOG comprises: a light source; a fiber optic ring resonator; a photodetector that outputs an electrical signal that varies as a function of optical intensity; and an input light polarization servo. A light beam from the servo is launched into the resonator ring in a first direction of circulation. The input polarization servo comprises a birefringence modulator that modulates a phase shift between two components of an input polarization state of the light beam at ωm, the modulator is controlled to drive towards zero a 1st harmonic of ωm as measured in the electrical signal. The servo further comprises a tunable ½ waveplate that adjusts an amplitude of the two components of the input polarization state relative to each other. The tunable ½ waveplate is controlled to maximize a peak optical intensity as measured in the electrical signal. | ||||||
| 219 | Optical interferometer | US13361683 | 2012-01-30 | US08983244B2 | 2015-03-17 | Jinxi Shen; Hiroaki Yamada; David J. Chapman; Shanrui Ren |
| An optical interferometer for demodulating a differential phase shift keying optical signal includes a planar lightwave circuit and at least one free space delay line optically coupled to the planar lightwave circuit. The planar lightwave circuit has a waveguide splitter, a waveguide coupler, and a phase adjuster. In operation, the splitter splits the optical signal into equal portions, the phase adjuster adjusts the relative phase of the optical signal portions, and the free space delay line provides one-bit delay between the portions of the optical signal. The delayed signals are mixed in the waveguide coupler. The free space delay line can be made variable for adjustment of the bit delay for operation at different bit rates, and/or for optimization of the interferometer performance. | ||||||
| 220 | Generating and detecting radiation | US13384214 | 2010-07-19 | US08809092B2 | 2014-08-19 | Edmund Linfield; John Cunningham; Alexander Giles Davies; Christopher Wood; Paul John Cannard; David Graham Moodie; Xin Chen; Michael James Robertson |
| A method of generating radiation comprises: manufacturing a structure comprising a substrate supporting a layer of InGaAs, InGaAsP, or InGaAlAs material doped with a dopant, said manufacturing comprising growing said layer such that said dopant is incorporated in said layer during growth of the layer; illuminating a portion of a surface of the structure with radiation having photon energies greater than or equal to a band gap of the doped InGaAs, InGaAsP, or InGaAlAs material so as to create electron-hole pairs in the layer of doped material; and accelerating the electrons and holes of said pairs with an electric field so as to generate radiation. In certain embodiments the dopant is Fe. Corresponding radiation detecting apparatus, spectroscopy systems, and antennas are described. | ||||||
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