公开(公告)号：US3626312A

公开(公告)日：1971-12-07

申请号：US3626312D

申请日：1968-10-04

Applicant: AMERICAN OPTICAL CORP

Inventor： SNITZER ELIAS

IPC: G01J1/00 ,  G01J1/42 ,  H01S3/00 ,  H01S3/067 ,  H01S3/16 ,  H04B10/158 ,  H01S3/02

CPC classification number: H01S3/16 ,  G01J1/0407 ,  G01J1/0425 ,  G01J1/0459 ,  G01J1/42 ,  H01S3/0007 ,  H01S3/06754 ,  H01S2301/02 ,  H04B10/675

Abstract: A light energy detector which includes a laser preamplifier coupled to means for converting the amplified light into electrical energy is provided. The detector is capable of detecting 1.06 micron wavelength light and is capable of detecting a minimum signal of approximately 1,000 photons or less at a duration of 50 nanoseconds or less.

公开(公告)号：US11913831B2

公开(公告)日：2024-02-27

申请号：US17838745

申请日：2022-06-13

Applicant: STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITED

Inventor： Neale Dutton ,  John Kevin Moore

IPC: G01J1/44 ,  G01J1/02 ,  G01J1/04 ,  H01L31/02

CPC classification number: G01J1/44 ,  G01J1/0271 ,  G01J1/0459 ,  H01L31/02016 ,  G01J2001/446 ,  G01J2001/4413

Abstract: An optical sensor includes at least one photodetector configured to be reverse biased at a voltage exceeding a breakdown voltage by an excess bias voltage. At least one control unit is configured to adjust the reverse bias of the at least one photodetector. A method of operating an optical sensor is also disclosed.

公开(公告)号：US20180232208A1

公开(公告)日：2018-08-16

申请号：US15951110

申请日：2018-04-11

Applicant: QuintessenceLabs Pty Ltd.

Inventor： Ken Li Chong ,  Andrew Lance

IPC: G06F7/58 ,  G01J1/04 ,  G06N99/00 ,  G01J1/16

CPC classification number: G06F7/588 ,  G01J1/0425 ,  G01J1/0459 ,  G01J1/1626 ,  G06N10/00

Abstract: An integrated quantum random noise source includes a substrate, an optical oscillator that may be integral to the substrate coupled by an optical waveguide to an optical directional coupler. The optical directional coupler has two outputs that are coupled by optical waveguides to a pair of photodetectors that are part of a balanced photodetector. The balanced photodetector in response outputs an analogue signal proportional to the difference in photocurrents of the two photodetectors. The analogue output signal from the balanced photodetector is a random Gaussian-distributed signal representative of quadrature measurements on the quantum vacuum state of light. The random noise source can be coupled other apparatus to provide a source of random bits.

公开(公告)号：US09752925B2

公开(公告)日：2017-09-05

申请号：US14997261

申请日：2016-01-15

Applicant: Taiwan Biophotonic Corporation

Inventor： Chang-Sheng Chu ,  Yu-Tang Li ,  Yeh-Wen Lee ,  Chih-Hsun Fan ,  Lung-Pin Chung ,  Jyh-Chern Chen ,  Shuang-Chao Chung

IPC: G01J1/42 ,  G01J1/04 ,  G01J1/44 ,  A61B5/1455 ,  A61B5/00 ,  H01L31/0203 ,  H01L31/0232 ,  H01L31/173 ,  H04B10/071 ,  G01J1/02 ,  G01J1/08 ,  H01L31/12 ,  H01L33/54 ,  H01L33/58

CPC classification number: G01J1/0459 ,  A61B5/14552 ,  A61B5/681 ,  A61B2560/0443 ,  A61B2562/0233 ,  A61B2562/164 ,  A61B2562/227 ,  G01J1/0271 ,  G01J1/0437 ,  G01J1/08 ,  G01J1/4228 ,  G01J1/44 ,  H01L31/0203 ,  H01L31/0232 ,  H01L31/02325 ,  H01L31/02327 ,  H01L31/125 ,  H01L31/173 ,  H01L33/54 ,  H01L33/58 ,  H04B10/071

Abstract: The present disclosure relates to an optical sensor module, an optical sensing accessory, and an optical sensing device. An optical sensor module comprises a light source, a photodetector, and a substrate. The light source is configured to convert electric power into radiant energy and emit light to an object surface. The photodetector is configured to receive the light from an object surface and convert radiant energy into electrical current or voltage. An optical sensing accessory and an optical sensing device comprise the optical sensor module and other electronic modules to have further applications.

公开(公告)号：US09506802B2

公开(公告)日：2016-11-29

申请号：US15006124

申请日：2016-01-26

Applicant: Taiwan Biophotonic Corporation

Inventor： Chang-Sheng Chu ,  Yu-Tang Li ,  Yeh-Wen Lee ,  Chih-Hsun Fan ,  Lung-Pin Chung ,  Jyh-Chern Chen ,  Shuang-Chao Chung

IPC: H01J40/14 ,  G01J1/04 ,  H04B10/071 ,  G01J1/44

CPC classification number: G01J1/0459 ,  A61B5/14552 ,  A61B5/681 ,  A61B2560/0443 ,  A61B2562/0233 ,  A61B2562/164 ,  A61B2562/227 ,  G01J1/0271 ,  G01J1/0437 ,  G01J1/08 ,  G01J1/4228 ,  G01J1/44 ,  H01L31/0203 ,  H01L31/0232 ,  H01L31/02325 ,  H01L31/02327 ,  H01L31/125 ,  H01L31/173 ,  H01L33/54 ,  H01L33/58 ,  H04B10/071

Abstract: The present disclosure relates to an optical sensor module, an optical sensing accessory, and an optical sensing device. An optical sensor module comprises a light source, a photodetector, and a substrate. The light source is configured to convert electric power into radiant energy and emit light to an object surface. The photodetector is configured to receive the light from an object surface and convert radiant energy into electrical current or voltage. An optical sensing accessory and an optical sensing device comprise the optical sensor module and other electronic modules to have further applications.

Abstract translation: 本发明涉及光学传感器模块，光学感测附件和光学感测装置。 光学传感器模块包括光源，光电检测器和衬底。 光源被配置为将电力转换成辐射能并将光发射到物体表面。 光电检测器被配置为从物体表面接收光并将辐射能转换成电流或电压。 光学传感附件和光学感测装置包括光学传感器模块和其他电子模块以具有进一步的应用。

公开(公告)号：US09259270B2

公开(公告)日：2016-02-16

申请号：US13127911

申请日：2009-11-06

Applicant: Joe Denton Brown

Inventor： Joe Denton Brown

IPC: A61B18/24 ,  A61B18/22 ,  A61B17/00 ,  G01J1/04 ,  A61N5/06

CPC classification number: A61B18/22 ,  A61B2017/00057 ,  A61B2017/00084 ,  A61B2017/00119 ,  A61B2218/008 ,  A61N5/0601 ,  A61N2005/0628 ,  A61N2005/063 ,  G01J1/0425 ,  G01J1/0459

Abstract: A method and apparatus for improving the safety of a surgical procedure involving delivery of laser energy to a tissue, involves enhancing or increasing the detectability of radiation emitted by the tissue or any portion of a surgical instrument or device by providing a sacrificial material that absorbs radiation emitted during the surgical procedure, increasing the temperature of a surface on which the material is disposed and/or causing damage radiation to be emitted in a way that can be detected by monitoring the temperature of the surface and/or radiation, including infrared and/or visible light, emitted by the surface. In a preferred embodiment of the invention, the radiation absorbing material is a sheath arranged to surround the fiber.

Abstract translation: 一种用于改善涉及向组织递送激光能量的手术过程的安全性的方法和装置，涉及通过提供吸收辐射的牺牲材料来增强或增加由组织或外科器械或装置的任何部分发射的辐射的可检测性 在外科手术过程中发射，增加材料被放置的表面的温度和/或以可以通过监测表面和/或辐射的温度（包括红外线和/ 或可见光，由表面发射。 在本发明的优选实施例中，辐射吸收材料是围绕纤维布置的护套。

公开(公告)号：US20130134302A1

公开(公告)日：2013-05-30

申请号：US13816160

申请日：2011-04-19

Applicant: Kenji Sato

Inventor： Kenji Sato

IPC: G01J1/04

CPC classification number: G01J1/0459 ,  G02F7/00 ,  H04B10/07955

Abstract: An optical intensity determination unit includes: an optical input port; an optical output port; an optical resonator provided between the optical input port and the optical output port; a first light receiving element for converting at least a part of an optical signal output from a first output port of the optical resonator into an electric signal; a second light receiving element for converting at least a part of an optical signal output from a second output port of the optical resonator into an electric signal; a comparing circuit for determining magnitudes of the electric signals output from the first light receiving element and the second light receiving element to output a digital signal; and an optical branching circuit for branching light output from the second output port of the optical resonator into the optical output port and the second light receiving element. An optical intensity phase conversion unit for modulating an optical phase according to intensity of input light is provided in a part of a waveguide in the optical resonator.

Abstract translation: 光强决定单元包括：光输入端口; 光输出端口; 设置在光输入端口和光输出端口之间的光谐振器; 第一光接收元件，用于将从光谐振器的第一输出端口输出的光信号的至少一部分转换为电信号; 第二光接收元件，用于将从光谐振器的第二输出端口输出的光信号的至少一部分转换为电信号; 比较电路，用于确定从第一光接收元件和第二光接收元件输出的电信号的幅度以输出数字信号; 以及用于将从光谐振器的第二输出端口输出的光分支到光输出端口和第二光接收元件的光分支电路。 在光谐振器的波导的一部分中设置有用于根据输入光的强度来调制光学相位的光强度相位转换单元。

公开(公告)号：US20130087693A1

公开(公告)日：2013-04-11

申请号：US13646423

申请日：2012-10-05

Applicant: TELCORDIA TECHNOLOGIES, INC.

Inventor： Ted Woodward ,  Anjali Agarwal ,  Nicholas Peters

IPC: G01J1/04

CPC classification number: G01N21/17 ,  G01J1/0425 ,  G01J1/0459 ,  G01J1/42 ,  G01J1/58 ,  G01J3/4531 ,  G01N21/41 ,  G01S7/486 ,  G01S7/487 ,  G01S17/10 ,  G02B6/29338 ,  G02F1/3536 ,  G02F1/39 ,  G02F2001/392 ,  H01L31/0232 ,  H04B10/70

Abstract: Systems for enhancing the sensitivity of detecting an optical signal using nonlinear optics and method of performing the same. In one embodiment, a single-photon detection system includes an optical amplifier realized in a waveguide, and a photodetector coupled to an output of the optical amplifier. A light detection and ranging system includes the optical amplifier coupled to an optical source and one photodetector. In another embodiment, a photodetection system includes a plurality of optical frequency converters, coupled to an optical source, that sequentially convert a wavelength of photons of the optical source to a final wavelength, and a single-photon photodetector coupled to the optical frequency converters to detect single photons produced by the optical source. In another embodiment, an optical sensor includes an optical pump, and a transducer including an optical ring cavity coupled to the optical pump and configured to utilize optical four-wave mixing to detect an external stimulus.

公开(公告)号：US20130087692A1

公开(公告)日：2013-04-11

申请号：US13646404

申请日：2012-10-05

Applicant: Telcordia Technologies, Inc.

Inventor： Ted Woodward ,  Anjali Agarwal ,  Nicholas Peters

IPC: G01J1/04

CPC classification number: G01N21/17 ,  G01J1/0425 ,  G01J1/0459 ,  G01J1/42 ,  G01J1/58 ,  G01J3/4531 ,  G01N21/41 ,  G01S7/486 ,  G01S7/487 ,  G01S17/10 ,  G02B6/29338 ,  G02F1/3536 ,  G02F1/39 ,  G02F2001/392 ,  H01L31/0232 ,  H04B10/70

Abstract: Systems for enhancing the sensitivity of detecting an optical signal using nonlinear optics and method of performing the same. In one embodiment, a single-photon detection system includes an optical amplifier realized in a waveguide, and a photodetector coupled to an output of the optical amplifier. A light detection and ranging system includes the optical amplifier coupled to an optical source and one photodetector. In another embodiment, a photodetection system includes a plurality of optical frequency converters, coupled to an optical source, that sequentially convert a wavelength of photons of the optical source to a final wavelength, and a single-photon photodetector coupled to the optical frequency converters to detect single photons produced by the optical source. In another embodiment, an optical sensor includes an optical pump, and a transducer including an optical ring cavity coupled to the optical pump and configured to utilize optical four-wave mixing to detect an external stimulus.

公开(公告)号：US07372031B2

公开(公告)日：2008-05-13

申请号：US11384574

申请日：2006-03-20

Applicant: Stephen A. Cerwin ,  David B. Chang

Inventor： Stephen A. Cerwin ,  David B. Chang

IPC: G01J1/00

CPC classification number: G01J1/42 ,  G01J1/02 ,  G01J1/0295 ,  G01J1/04 ,  G01J1/0422 ,  G01J1/044 ,  G01J1/0459

Abstract: A sensitive photon detection system generates an electronic photon sensor signal as a K factor times a number N photons per unit time. The system is configured by combining a separate optical amplifier with a gain factor K1 with a photo detector with a gain factor K2 such that K may be realized as the product of K1 and K2. The values of K1 and K2 are chosen to meet a predetermined K while optimizing a signal quality of the photon sensor signal. The optical amplifier may be preceded by a photon gathering device and/or a light chopping device to further optimize system performance. Further, the photon sensor signal may be further processed analog circuitry or may be digitized and processed using digital signal processing to generate an enhanced photon sensor signal with enhanced signal quality by adding gain and/or bandwidth limiting.

Abstract translation: 敏感光子检测系统产生电子光子传感器信号作为每单位时间数N个光子的K因子。 该系统通过将具有增益因子K 1的单独光学放大器与增益因子K 2的光电检测器组合，使得可以实现K作为K 1和K 2的乘积来配置该系统。 选择K 1和K 2的值以在优化光子传感器信号的信号质量的同时满足预定的K。 光放大器之前可以有光子收集装置和/或光斩波装置，以进一步优化系统性能。 此外，光子传感器信号可以进一步处理模拟电路，或者可以使用数字信号处理进行数字化和处理，以通过增加增益和/或带宽限制来产生增强的信号质量的增强的光子传感器信号。