| 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 | METHOD FOR EVALUATING CHARACTERISTICS OF OPTICAL MODULATOR HAVING MACH-ZEHNDER INTERFEROMETERS | US13845393 | 2013-03-18 | US20130250306A1 | 2013-09-26 | Tetsuya KAWANISHI; Shinya NAKAJIMA; Satoshi SHINADA |
| PROBLEMSTo provide a method for evaluating characteristics of MZ interferometers in an optical modulator having a plurality of MZ interferometers.MEANS FOR SOLVING PROBLEMSWhen an optical modulator includes a plurality of MZ interferometers, the 0-degree component contains a signal derived from an MZ interferometer other than the MZ interferometers for evaluating the characteristic. For this, it is impossible to accurately evaluate the characteristic of the MZ interferometers. The present invention does not use the 0-degree component normally having the highest intensity. That is, the characteristic of the MZ interferometers are evaluated by using a side band intensity of the component other than the 0-degree component. | ||||||
| 182 | Optical device having optical modulators | US12783966 | 2010-05-20 | US08467634B2 | 2013-06-18 | Masaki Sugiyama |
| An optical device includes first and second optical modulators formed on a substrate having electro-optical effect. The first optical modulator includes a first optical waveguide; a first signal electrode configured to provide a first data signal for the first optical waveguide; and a first DC electrode, arranged at an output side of the first signal electrode, and configured to provide first DC voltage for the first optical waveguide. The second optical modulator includes a second optical waveguide; a second signal electrode configured to provide a second data signal for the second optical waveguide; and a second DC electrode provided, arranged at an input side of the second signal electrode, and configured to provide second DC voltage for the second optical waveguide. Input portions of the first and second signal electrodes are arranged at a same side edge of the substrate. | ||||||
| 183 | TFT-LCD ARRAY SUBSTRATE AND MANUFACTURING METHOD THEREOF | US13380047 | 2011-11-09 | US20130092946A1 | 2013-04-18 | Xiaolong Ma; Hungjui Chen; Tsunglung Chang |
| The present invention provides a TFT-LCD array substrate having a gate-line metal layer, a data-line metal layer crossing the gate-line metal layer and a plurality of layers covering a periphery of the gate-line metal layer and the data-line metal layer; the gate-line metal layer has first gate lines and second gate lines parallel and alternately arranged, the date-line metal layer has first data lines and second data lines parallel and alternately arranged; the first gate line and the second gate line are electrically connected; the first data line and the second data line are electrically connected. The present invention further provides a manufacturing method of the TFT-LCD array substrate. Implementing the TFT-LCD array substrate and the manufacturing method can reduce the occurrence of line-broken in the active array of TFT-LCD, increase the aperture ratio of the product and enhance yield rate of the products. | ||||||
| 184 | GAIN CONTROL FOR AN OPTICAL MODULATOR | US13551514 | 2012-07-17 | US20130022306A1 | 2013-01-24 | Alan Tipper; Amyas Holroyd |
| There is described an optical modulation system for transmitting modulated optical light. The system comprises an electro-optic modulator having at least two arms through which light is transmitted and an imbalance electrode located on at least one arm. A current source is configured to inject current into the imbalance electrode for modifying the phase of light passing through the arm. A dither generator is configured to modulate the injected current, or bias voltage applied to at least one of the arms, with a dither signal. A phase sensitive detector is configured to detect an error in the phase of light emitted by the modulator. An operating point controller is configured to monitor the detected phase error and adjust the current injected into the imbalance arm so as to compensate for the detected error and thereby control an operating point of the modulator. | ||||||
| 185 | Method for evaluating characteristics of optical modulator having high-precision Mach-Zehnder interferometers | US12921235 | 2008-03-07 | US08351047B2 | 2013-01-08 | Tetsuya Kawanishi; Shinya Nakajima; Satoshi Shinada |
| ProblemAn object is to provide a method for evaluating characteristics of individual Mach-Zehnder (MZ) interferometers in an optical modulator which includes a plurality of MZ interferometers,Means for Solving ProblemsThe method comprises a step for adjusting a bias voltage of the MZ interferometer, a step for eliminating zero-order components, a step for measuring an output intensity and a step for evaluating characteristics. An optical modulator (1) includes the first MZ interferometer (2) and the second MZ interferometer (3). The first MZ interferometer (2) includes wave-branching section (5). Two arms (6,7), wave coupling section (8) and electrodes which is not shown in figures. | ||||||
| 186 | OPTICAL WAVEGUIDE STRUCTURE | US13078210 | 2011-04-01 | US20120251029A1 | 2012-10-04 | MAURO J. KOBRINSKY; BRUCE A. BLOCK; PETER L. CHANG |
| Embodiments of the invention describe a multi-segment optical waveguide that enables an optical modulator to be low-power and athermal by decreasing the device length needed for a given waveguide length. Embodiments of the invention describe an optical waveguide that is folded onto itself, and thus includes at least two sections. Thus, embodiments of the invention may decrease the device size of a modulator by at least around a factor of two if the device is folded twofold (device size may be further reduced if the modulator is folded threefold, four-fold, five-fold, etc.).Embodiments of the invention further enable the electrode length required to create the desired electro-optic effect for the multi-segment optical waveguide to be reduced. In embodiments of the invention, certain electrodes may be “shared” amongst the different segments of the waveguide, thereby reducing the power requirement and capacitance of a device having a waveguide of a given length. | ||||||
| 187 | Parallel modulator photonic link | US12176089 | 2008-07-18 | US08180183B1 | 2012-05-15 | Daniel Yap |
| An RF photonic link having at least one light source, at least one photodetector, multiple optoelectronic modulators, and an RF waveguide common to each one of said multiple optoelectronic modulators. The multiple optoelectronic modulators are optically arranged in parallel to receive light from said at least one light source and are disposed in said RF waveguide. The RF waveguide, in use, guides an RF electromagnetic field applied to each of the multiple optoelectronic modulators disposed therein, the RF electromagnetic field propagating through the RF waveguide in a direction that is perpendicular to a direction in which an optical field propagates through each of said optoelectronic modulators. | ||||||
| 188 | METHOD FOR EVALUATING CHARACTERISTICS OF OPTICAL MODULATOR HAVING HIGH-PRECISION MACH-ZEHNDER INTERFEROMETERS | US12921235 | 2008-03-07 | US20110019199A1 | 2011-01-27 | Tetsuya Kawanishi; Shinya Nakajima; Satoshi Shinada |
| Problem An object is to provide a method for evaluating characteristics of individual Mach-Zehnder (MZ) interferometers in an optical modulator which includes a plurality of MZ interferometers.Means for Solving Problems The method comprises a step for adjusting a bias voltage of the MZ interferometer, a step for eliminating zero-order components, a step for measuring an output intensity and a step for evaluating characteristics. An optical modulator (1) includes the first MZ interferometer (2) and the second MZ interferometer (3). The first MZ interferometer (2) includes wave-branching section (5). Two arms (6,7), wave coupling section (8) and electrodes which is not shown in figures. | ||||||
| 189 | METHOD AND SYSTEM FOR GENERATING FLAT OR ARBITRARY SHAPED OPTICAL FREQUENCY COMBS | US11763868 | 2007-06-15 | US20110007383A1 | 2011-01-13 | Ioan L. Gheorma; Ganesh K. Gopalakrishnan |
| A method and system for generating an optical frequency comb that employs a dual parallel modulator that inputs an optical signal at a center frequency of a desired optical frequency comb and an RF signal at a frequency corresponding to a desired spacing of the teeth of the optical frequency comb. The amplitudes of the teeth of the optical frequency comb are controlled by controlling the amplitudes of the two RF inputs to the DPM and the phase shift between the two RF inputs. In some embodiments, the three bias voltages for the three interferometers in the DPM are also controlled. In some embodiments, all three interferometers are all biased at the same point (e.g, quadrature). Preferably, but not necessarily, the three interferometers of the DPM are formed on a single substrate. | ||||||
| 190 | System and method for ultrafast optical signal detecting via a synchronously coupled anamorphic light pulse encoded laterally | US12193841 | 2008-08-19 | US07768649B2 | 2010-08-03 | John E. Heebner |
| In one general embodiment, a method for ultrafast optical signal detecting is provided. In operation, a first optical input signal is propagated through a first wave guiding layer of a waveguide. Additionally, a second optical input signal is propagated through a second wave guiding layer of the waveguide. Furthermore, an optical control signal is applied to a top of the waveguide, the optical control signal being oriented diagonally relative to the top of the waveguide such that the application is used to influence at least a portion of the first optical input signal propagating through the first wave guiding layer of the waveguide. In addition, the first and the second optical input signals output from the waveguide are combined. Further, the combined optical signals output from the waveguide are detected. In another general embodiment, a system for ultrafast optical signal recording is provided comprising a waveguide including a plurality of wave guiding layers, an optical control source positioned to propagate an optical control signal towards the waveguide in a diagonal orientation relative to a top of the waveguide, at least one optical input source positioned to input an optical input signal into at least a first and a second wave guiding layer of the waveguide, and a detector for detecting at least one interference pattern output from the waveguide, where at least one of the interference patterns results from a combination of the optical input signals input into the first and the second wave guiding layer. Furthermore, propagation of the optical control signal is used to influence at least a portion of the optical input signal propagating through the first wave guiding layer of the waveguide. | ||||||
| 191 | Optical device | US12289980 | 2008-11-07 | US20090238512A1 | 2009-09-24 | Masaki Sugiyama |
| According to an aspect of an embodiment, an optical device comprising: a first modulator for independently modulating first light having a first predetermined polarization mode; a second modulator for independently modulating second light having a second predetermined polarization mode; and a polarization beam coupler having a first port, a second port, a third port, and a fourth port; the polarization beam coupler for inputting the first light from the first modulator via the first port, inputting the second light from the second modulator via the second port, outputting the first light via the third port and inputting reflected and polarization converted light on the first light by a wave plate and a mirror, and outputting the first light having the converted polarization mode and the second light having the predetermined polarization mode via the fourth port. | ||||||
| 192 | Stacked storage capacitor structure for a LTPS TFT-LCD | US11295422 | 2005-12-05 | US07554619B2 | 2009-06-30 | Mu-Chia Lee; Chun-Wei Huang; Hung-Che Lu; Kuo-Hung Kuo; Hong-Bin Li; Wen-Kuei Lai; Chia-Yi Tsai; Yu-Chi Chang; Hau-Chiun Li; Wei-Chih Chang |
| The invention discloses a stacked storage capacitor structure for a LTPS TFT-LCD comprising a processed substrate, a first storage capacitor and a second storage capacitor. The first storage capacitor comprises a first conductive layer, a second conductive layer and a first insulating layer therebetween. The stacked storage capacitor structure further comprises a third conductive layer including a first portion and an extended second portion. The second storage capacitor comprises the second conductive layer, the extended second portion of the third conductive layer and a second insulating layer therebetween. | ||||||
| 193 | Multi-component wavelength conversion devices and lasers incorporating the same | US11978857 | 2007-10-30 | US20090110013A1 | 2009-04-30 | Jacques Gollier; James Michael Harris |
| According to one embodiment of the present invention, a frequency-converted laser source is provided wherein the wavelength conversion device comprises a plurality of waveguide components comprising respective input faces positioned in an effective focal field of the laser source. Individual ones of the waveguide components contribute different elements to a set of distinct wavelength conversion properties, defining a set of distinct wavelength conversion properties attributable to the waveguide components. The set of distinct wavelength conversion properties comprises properties representing phase matching wavelengths of the waveguide components, spectral widths of the waveguide components, conversion efficiency of the waveguide components, or combinations thereof. Additional embodiments are disclosed and claimed. | ||||||
| 194 | Tunable wavelength optical transmission module | US11120751 | 2005-05-02 | US07305160B2 | 2007-12-04 | Mahn Yong Park; Byoung Whi Kim |
| Disclosed herein is a tunable wavelength optical transmission module, the wavelength of which can be tuned over the wide wavelength region of a C band and which can be implemented at a low price and, thus, can be applied to an optical network terminal. Bragg gratings having different grating periods are arranged in parallel or series and the temperatures of Bragg grating regions are then controlled, so that the wavelength of an optical signal can be tuned over a wide wavelength range through the small variation in temperature. | ||||||
| 195 | Stacked storage capacitor structure for a LTPS TFT-LCD | US11295422 | 2005-12-05 | US20070126943A1 | 2007-06-07 | Mu-Chia Lee; Chun-Wei Huang; Hung-Che Lu; Kuo-Hung Kuo; Hong-Bin Li; Wen-Kuei Lai; Chia-Yi Tsai; Yu-Chi Chang; Hau-Chiun Li; Wei-Chih Chang |
| The invention discloses a stacked storage capacitor structure for a LTPS TFT-LCD comprising a processed substrate, a first storage capacitor and a second storage capacitor. The first storage capacitor comprises a first conductive layer, a second conductive layer and a first insulating layer therebetween. The stacked storage capacitor structure further comprises a third conductive layer including a first portion and an extended second portion. The second storage capacitor comprises the second conductive layer, the extended second portion of the third conductive layer and a second insulating layer therebetween. | ||||||
| 196 | Optical multilayer disk, multiwavelength light source, and optical system using them | US11409762 | 2006-04-24 | US20060193231A1 | 2006-08-31 | Kiminori Mizuuchi; Kazuhisa Yamamoto; Rie Kojima; Noboru Yamada |
| When a wavelength of a first laser beam with which a first recording medium including a first recording layer is recorded and reproduced is indicated as λ1 (nm), a wavelength of a second laser beam with which a second recording medium including a second recording layer is recorded and reproduced as λ2 (nm), the relationship between the wavelength λ1 and the wavelength λ2 is set to be expressed by 10≦|λ1−λ2|≦120. The first recording layer has a light absorptance ratio of at least 1.0 with respect to the wavelength λ1. The light transmittance of the first recording medium with respect to the wavelength λ2 is set to be at least 30 in both the cases where the recording layer is in a crystal state and in an amorphous state. In order to record and reproduce the optical multilayer disk with the above-mentioned characteristics, a multiwavelength light source with the following configuration is used. Wavelengths of fundamental waves with different wavelengths from injection parts formed at one end of a plurality of optical waveguides, which satisfy phase matching conditions different from one another and are formed in the vicinity of the surface of a substrate, are converted simultaneously, and the first and second laser beams are emitted from emission parts formed at substantially the same position at the other end of the optical waveguides. This enables an optimum optical system for high density recording and reproduction to be obtained. | ||||||
| 197 | Optical digital-to-analog converter | US10771089 | 2004-02-03 | US20050168364A1 | 2005-08-04 | Young-Kai Chen; Andreas Leven; Kun-Yii Tu |
| An optical digital-to-analog conversion is realized by employing either a continuous wave or pulsed laser optical signal. The laser optical signal is split into a plurality of mutually coherent optical beams, which are phase shift modulated by bits of a digital data sequence to be converted to an analog signal. The phase shift modulated optical beams are recombined to realize the desired digital-to-analog converted optical signal. | ||||||
| 198 | System and method for providing collimated electromagnetic energy in the 8—12 micron range | US09556216 | 2000-04-24 | US06639921B1 | 2003-10-28 | Joseph M. Fukumoto |
| A novel and efficient system and method for providing an output beam of collimated energy in the 8-12 micron range. The solid state system includes a pump laser (210) for providing an input beam and an OPO (250) using an x-cut potassium titanyl arsenate crystal for shifting the input beam from the first wavelength to a second wavelength. A second optical parametric oscillator (271) is included for shifting the beam from a second wavelength to a third wavelength. The second optical parametric oscillator (271) uses a cadmium selenide crystal. A tuning mechanism with an associated controller is provided to tune the oscillator as needed for a particular application. | ||||||
| 199 | Discrete element light modulating microstructure devices | US09530318 | 2000-06-30 | US06486996B1 | 2002-11-26 | Alexander B. Romanovsky |
| An optical system may be formed by including a plurality of discrete protrusions comprising electro-optic material. Each discrete protrusion is electrically and optically isolated from each other. The protrusions further have defined a top face, a bottom face, a first side face or first and second side faces, and front and back faces. A plurality of electrodes are associated with each of the protrusions. The electrodes are capable of inducing an electric field in the electro-optic material for independently modulating one or more light beams which are incident upon one of the faces of the protrusions. In one preferred embodiment, the protrusions are oriented with respect to the one or more light beams such that each of the light beams enters the protrusion and strikes a boundary between first and second portions of the protrusion at an angle and is reflected by total internal reflection when the first portion is electro-optically activated by application of sufficient voltage, but which will pass substantially unreflected through the boundary when the first portion is not electro-optically activated. | ||||||
| 200 | Optical digital waveform generator | US09538097 | 2000-03-29 | US06396971B1 | 2002-05-28 | Martin L. Pullam; Ronald E. Rope |
| A method and a system for generating optical waveforms from electrical signals is disclosed. An input electrical signal is sampled to obtain a single channel data which is converted to multi-channel data. The multi-channel data is converted to multi-channel electrical pulses which are input along with a light source output into a switch array containing optical switches to obtain a multi-channel optical waveform made up of a plurality of optical waveforms. These waveforms are superpositioned to generate a stacked optical pulse. Alternatively, the multi-channel data may be converted to a multi-channel optical pulses. The stacked optical pulse may be used to write data to a storage medium. | ||||||
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