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91. 发明授权

US3918007A Fabry-perot polarization laser beam modulator 失效
标题翻译：法布里 - 珀罗偏振激光束调制器
公开(公告)号：US3918007A
公开(公告)日：1975-11-04
申请号：US45415774
申请日：1974-03-25
申请人： RCA CORP
发明人： WAKSBERG ARMAND LUCIEN
IPC分类号： G02F1/21 , H01S3/107 , H01S3/10
CPC分类号： H01S3/1075 , G02F1/21 , G02F2001/213 , H01S3/08054 , H01S3/082
摘要： A polarization rotating electro-optic crystal, responsive to an applied modulating signal, is situated in a Fabry-Perot cavity which is external to but aligned with a main laser optical resonant cavity. The two cavities include in common a partially reflective-partially transmissive mirror which separates the two cavities, but permits coupling of incident wave energy from the laser cavity to the Fabry-Perot cavity and the feed back of wave energy having a polarization-modulation component from the FabryPerot cavity to the laser cavity. Polarizer means in the laser cavity ejects this polarization component from the laser cavity as an output. The modulator exhibits a high modulating efficiency with respect to modulating drive power.
摘要翻译：响应于所施加的调制信号的偏振旋转电光晶体位于法布里 - 珀罗腔中，其在主激光光谐振腔外部但与之对准。这两个空腔共同包括分离两个空腔的部分反射部分透射的反射镜，但允许将来自激光腔的入射波能量耦合到法布里 - 珀罗腔，并且具有偏振调制分量的波能量反馈法布里 - 珀罗腔到激光腔。在激光腔中的偏振器装置作为输出从激光腔喷射该偏振分量。调制器在调制驱动功率方面表现出高的调制效率。

92. 发明授权

US3699242A Electro-optical display system 失效
标题翻译：电光显示系统
公开(公告)号：US3699242A
公开(公告)日：1972-10-17
申请号：US3699242D
申请日：1971-02-24
申请人： EDGAR E PRICE
发明人： PRICE EDGAR E
IPC分类号： G02F1/21 , H04N9/31 , H04N9/12 , H04N5/66
CPC分类号： H04N9/3102 , G02F1/21
摘要： An electro-optical display system particularly for projecting an enlarged color television image on a screen in which the transmitted signals are converted into points of light modulated by a multiple Fabry-Perot interferometric or multiple electrooptical light modulator assembly.
摘要翻译：一种电光显示系统，特别用于在屏幕上投影放大的彩色电视图像，其中发送的信号被转换成由多个法布里 - 珀罗干涉仪或多个电光调制器组件调制的光点。

93. 发明授权

US3395960A Light modulator 失效
标题翻译：光调制器
公开(公告)号：US3395960A
公开(公告)日：1968-08-06
申请号：US37093264
申请日：1964-05-28
申请人： IBM
发明人： CHANG PAUL T , KOSANKE KURT M
IPC分类号： G02F1/21
CPC分类号： G02F1/21

94. 发明授权

US3164665A Electro-optical light shutter 失效
标题翻译：电光光闸
公开(公告)号：US3164665A
公开(公告)日：1965-01-05
申请号：US21323662
申请日：1962-07-30
申请人： HUGHES AIRCRAFT CO
发明人： STELLO PHYLLIS E
IPC分类号： G02F1/03 , G02F1/21
CPC分类号： G02F1/21 , G02F1/03 , G02F2001/213

95. 发明公开

US20240369895A1 ACTIVE CANCELLATION OF FREQUENCY NOISE IN LASERS 审中-公开
公开(公告)号：US20240369895A1
公开(公告)日：2024-11-07
申请号：US18653068
申请日：2024-05-02
申请人： The Board of Trustees of the University of Illinois
发明人： Lintao Li , Jacob Paul Covey , William Chiu Wong Huie , Jia Pern Neville Chen , Brian Leeds DeMarco
IPC分类号： G02F1/21 , G02F1/11 , G02F1/35 , H01S5/00 , H01S5/14
CPC分类号： G02F1/21 , G02F1/113 , G02F1/353 , H01S5/0085 , G02F2201/02 , G02F2203/055 , H01S5/14
摘要： The present disclosure relates to active cancellation of frequency noise in lasers. One example embodiment includes a device. The device includes an optical cavity exhibiting a resonant optical frequency. The device also includes a laser. An output of the laser is locked to the resonant optical frequency. A first portion of the laser output is transmitted through the optical cavity to filter out high-frequency noise from the first portion of the laser output to generate a modified signal. Additionally, the device includes an acousto-optic modulator configured to generate a reference signal. Further, the device includes a feedforward circuit configured to receive a first portion of the reference signal and generate a feedforward signal. In addition, the device includes an electro-optic modulator configured to interfere a second portion of the reference signal with a second portion of the modified signal using the feedforward signal to generate an output signal.

96. 发明授权

US12038511B2 Precisely controlled chirped diode laser and coherent LIDAR system 有权
公开(公告)号：US12038511B2
公开(公告)日：2024-07-16
申请号：US17505640
申请日：2021-10-20
申请人： Intel Corporation
发明人： Naresh Satyan , George Rakuljic
IPC分类号： G01C3/08 , G01S7/481 , G01S7/4911 , G01S7/4914 , G01S7/4915 , G01S7/497 , G01S17/34 , G01S17/42 , G01S17/89 , G02F1/21 , H01S5/026 , H01S5/10 , H01S5/00 , H01S5/12 , H01S5/50
CPC分类号： G01S17/89 , G01S7/4812 , G01S7/4817 , G01S7/4911 , G01S7/4914 , G01S7/4915 , G01S7/497 , G01S17/34 , G01S17/42 , G02F1/21 , H01S5/0261 , H01S5/0265 , H01S5/1014 , G01S7/4818 , G02F1/212 , H01S5/0064 , H01S5/1212 , H01S5/5027
摘要： A light detection and ranging (LIDAR) system may include a laser source configured to emit one or more optical beams; a scanning optical system configured to scan the one or more optical beams over a scene and capture reflections of the one or more optical beams from the scene; a measurement system configured to divide the scene into a plurality of pixels, the measurement system comprising a detector configured to detect a return signal from multiple pixels of the plurality of pixels as the one or more optical beams are scanned across the scene, and a data processor configured to perform data processing from the return signal from the multiple pixels to determine a range and/or range rate for each pixel of the scene.

97. 发明公开

US20240094592A1 MACH-ZEHNDER INTERFEROMETER DEVICE FOR WAVELENGTH LOCKING 审中-公开
公开(公告)号：US20240094592A1
公开(公告)日：2024-03-21
申请号：US18526269
申请日：2023-12-01
申请人： Apple Inc.
发明人： Yi-Kuei Wu , Jason Pelc , Mark Alan Arbore , Thomas C. Greening , Matthew A. Terrel , Yongming Tu , Mohamed Mahmoud
IPC分类号： G02F1/21
CPC分类号： G02F1/21 , G02F1/212
摘要： Disclosed herein is an integrated photonics device including an on-chip wavelength stability monitor. The wavelength stability monitor may include one or more interferometric components, such as Mach-Zehnder interferometers and can be configured to select among the output signals from the interferometric components for monitoring the wavelength emitted by a corresponding photonic component, such as a light source. The selection may be based on a slope of the output signal and in some examples may correspond to a working zone at or around a wavelength or wavelength range. In some examples, the interferometric components can be configured with different phase differences such that the corresponding working zones have different wavelengths. In some examples, the slopes of the output signals may be weighted based on the steepness of the slope and all of the output signals may include information for wavelength locking the measured wavelength to the target wavelength.

98. 发明授权

US11835388B2 Light detection device 有权
公开(公告)号：US11835388B2
公开(公告)日：2023-12-05
申请号：US16843244
申请日：2020-04-08
申请人： HAMAMATSU PHOTONICS K.K.
发明人： Masaki Hirose , Katsumi Shibayama , Takashi Kasahara , Toshimitsu Kawai , Hiroki Oyama , Yumi Teramachi
IPC分类号： G01J5/08 , G01J3/26 , G02B26/00 , G01J3/02 , G01J5/0802 , G01J5/20 , G02F1/21 , H01L31/02 , H01L31/0203 , H01L31/0232 , H01L31/0304 , G01J5/04 , H10N15/10
CPC分类号： G01J3/26 , G01J3/0213 , G01J3/0256 , G01J3/0291 , G01J5/0802 , G01J5/20 , G02B26/00 , G02F1/21 , H01L31/0203 , H01L31/02005 , H01L31/02327 , H01L31/03046 , G01J5/045 , G02F1/213 , H10N15/10
摘要： A light detection device includes: a Fabry-Perot interference filter provided with a light transmission region; a light detector configured to detect light transmitted through the light transmission region; a package having an opening and accommodating the Fabry-Perot interference filter and the light detector; and a light transmitting unit arranged on an inner surface of the package so as to close an opening, the light transmitting unit including a band pass filter configured to transmit light incident on the light transmission region. When viewed from a direction parallel to the line, an outer edge of the Fabry-Pert interference filter is positioned outside an outer edge of the opening, and an outer edge of the light transmitting unit is positioned outside the outer edge of the Fabry-Perot interference filter.

99. 发明授权

US11684273B2 Tunable optoelectronic device and blood pressure sensor including the same 有权
公开(公告)号：US11684273B2
公开(公告)日：2023-06-27
申请号：US15976658
申请日：2018-05-10
申请人： STMICROELECTRONICS S.R.L.
发明人： Massimo Cataldo Mazzillo , Piero Fallica , Sebania Libertino
IPC分类号： A61B5/021 , G02F1/21 , A61B5/024 , A61B5/00 , G01J3/26 , G01J3/12 , G01J1/44
CPC分类号： A61B5/02125 , A61B5/02141 , A61B5/02433 , A61B5/742 , G01J3/26 , G02F1/21 , A61B2562/0238 , G01J2001/442 , G01J2001/4466 , G01J2003/1226 , G02F1/213 , G02F2203/055 , G02F2203/11
摘要： In various embodiments, the present disclosure provides devices and systems for detecting the blood pressure of a user. In one embodiment, an optoelectronic device includes an array of avalanche photodiodes operating in Geiger mode. A tunable optical filter is optically coupled to the array and receives a light beam reflected from a vascularized tissue of the user, in response to the vascularized tissue being illuminated by an optical source.

100. 发明公开

US20230152154A1 FABRY-PEROT INTERFEROMETER HAVING SUPPORTING ELEMENTS 审中-公开
公开(公告)号：US20230152154A1
公开(公告)日：2023-05-18
申请号：US17914968
申请日：2021-03-30
申请人： Teknologian tutkimuskeskus VTT Oy
发明人： Christer HOLMLUND , Aki KESKISAARI , Ingmar STUNS , Hans TOIVANEN
IPC分类号： G01J3/26 , G01J3/02 , G02F1/21 , G02B26/00
CPC分类号： G01J3/26 , G01J3/0202 , G02F1/21 , G02B26/001
摘要： A Fabry-Perot interferometer includes

a first mirror plate with a first semi-transparent mirror,
a second semi-transparent mirror to define an optical cavity together with the first mirror, and
one or more first supporting elements to support the first mirror plate, wherein the first mirror plate has a first substantially planar surface and a second substantially planar surface defining the maximum thickness of the first mirror plate,

wherein the first mirror plate is bonded to the one or more first supporting elements by three or more joints,

wherein each joint is bonded to the first mirror plate at a bonding region,

wherein the distance between each bonding region and the first substantially planar surface is greater than 30% of the thickness of the mirror plate, and the distance between each bonding region and the second substantially planar surface is greater than 30% of the thickness of the mirror plate.

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