公开(公告)号：US20170186933A1

公开(公告)日：2017-06-29

申请号：US14983139

申请日：2015-12-29

Applicant: Kristen Ann Sunter ,  Faraz Najafi ,  Adam Nykoruk McCaughan ,  Karl Kimon Berggren

Inventor： Kristen Ann Sunter ,  Faraz Najafi ,  Adam Nykoruk McCaughan ,  Karl Kimon Berggren

IPC: H01L39/02 ,  G01J1/44 ,  H01L31/107

CPC classification number: H01L39/02 ,  G01J1/42 ,  G01J2001/442 ,  G01J2001/4466 ,  H01L31/107 ,  H01L39/10

Abstract: Superconducting nanowire avalanche photodetectors (SNAPs) have using meandering nanowires to detect incident photons. When a superconducting nanowire absorbs a photon, it switches from a superconducting state to a resistive state, producing a change in voltage that can be measured across the nanowire. A SNAP may include multiple nanowires in order to increase the fill factor of the SNAP's active area and the SNAP's detection efficiency. But using multiple meandering nanowires to achieve high fill-factor in SNAPs can lead to current crowding at bends in the nanowires. This current crowding degrades SNAP performance by decreasing the switching current, which the current at which the nanowire transitions from a superconducting state to a resistive state. Fortunately, staggering the bends in the nanowires reduces current crowding, increasing the nanowire switching current, which in turn increases the SNAP dynamic range.

公开(公告)号：US09651417B2

公开(公告)日：2017-05-16

申请号：US13766801

申请日：2013-02-14

Applicant: PRIMESENSE LTD.

Inventor： Alexander Shpunt ,  Raviv Erlich

IPC: G01C3/08 ,  G01J1/04 ,  H01S3/00 ,  B23P19/04 ,  G06T15/00 ,  H01S5/022 ,  H01S5/40 ,  H01S5/42 ,  G01S17/10 ,  G01S17/42 ,  G01S17/89 ,  G01S7/481 ,  G01J1/44 ,  G02B27/09 ,  G01S7/486

CPC classification number: G06F3/011 ,  B23P19/04 ,  G01J1/0411 ,  G01J1/44 ,  G01J2001/4466 ,  G01S7/4812 ,  G01S7/4817 ,  G01S7/4865 ,  G01S7/4868 ,  G01S17/10 ,  G01S17/42 ,  G01S17/89 ,  G02B27/0961 ,  G06T15/00 ,  H01S3/0071 ,  H01S5/02248 ,  H01S5/02288 ,  H01S5/02296 ,  H01S5/4012 ,  H01S5/4075 ,  H01S5/423 ,  Y10T29/49002

Abstract: Mapping apparatus includes a transmitter, which emits a beam comprising pulses of light, and a scanner, which is configured to scan the beam, within a predefined scan range, over a scene. A receiver receives the light reflected from the scene and to generate an output indicative of a time of flight of the pulses to and from points in the scene. A processor is coupled to control the scanner so as to cause the beam to scan over a selected window within the scan range and to process the output of the receiver so as to generate a 3D map of a part of the scene that is within the selected window.

公开(公告)号：US09541448B2

公开(公告)日：2017-01-10

申请号：US14615806

申请日：2015-02-06

Applicant: General Electric Company

Inventor： Jianjun Guo ,  Sergei Ivanovich Dolinsky

IPC: G01J1/42 ,  G01J1/44

CPC classification number: G01J1/4228 ,  G01J1/44 ,  G01J2001/4466 ,  G01T1/248 ,  G01T1/2985

Abstract: A silicon photomultiplier array of microcells including a photon avalanche diode and an electronic circuit configured to provide a first one-shot pulse and a second one-shot pulse based on a detected current flowing through the photon avalanche diode. The microcells arranged in rows and columns with each microcell of a respective row connected to a respective row data bus connected to a row counter configured to count one or more first one-shot pulses for a predetermined time period, a pixel adder configured to sum the count, and a digital-to-analog converter connected to the pixel adder to convert sum to an analog signal representative of an energy readout. A timing logic circuit configured to provide a validation signal to a counter control logic circuit, and the counter control logic circuit configured to provide one of a start signal, a stop signal, and a reset signal to the row counter.

Abstract translation: 包括光子雪崩二极管和电子电路的微电池的硅光电倍增管阵列，被配置为基于流过光子雪崩二极管的检测电流提供第一单触发脉冲和第二单触发脉冲。 微电池以行和列排列，每行的每个微电池连接到连接到配置成在一个预定时间段内对一个或多个第一单触发脉冲进行计数的行计数器的相应行数据总线;像素加法器， 计数器和连接到像素加法器的数模转换器将和转换为表示能量读出的模拟信号。 定时逻辑电路，被配置为向计数器控制逻辑电路提供有效信号，并且所述计数器控制逻辑电路经配置以向所述行计数器提供起始信号，停止信号和复位信号中的一个。

公开(公告)号：US09157790B2

公开(公告)日：2015-10-13

申请号：US13766811

申请日：2013-02-14

Applicant: PRIMESENSE LTD.

Inventor： Alexander Shpunt ,  Zafrir Mor ,  Raviv Erlich

IPC: G02B27/00 ,  G01J1/04 ,  H01S3/00 ,  B23P19/04 ,  G06T15/00 ,  H01S5/022 ,  H01S5/40 ,  H01S5/42

CPC classification number: G06F3/011 ,  B23P19/04 ,  G01J1/0411 ,  G01J1/44 ,  G01J2001/4466 ,  G01S7/4812 ,  G01S7/4817 ,  G01S7/4865 ,  G01S7/4868 ,  G01S17/10 ,  G01S17/42 ,  G01S17/89 ,  G02B27/0961 ,  G06T15/00 ,  H01S3/0071 ,  H01S5/02248 ,  H01S5/02288 ,  H01S5/02296 ,  H01S5/4012 ,  H01S5/4075 ,  H01S5/423 ,  Y10T29/49002

Abstract: An optoelectronic module includes a micro-optical substrate and a beam transmitter, including a laser die mounted on the micro-optical substrate and configured to emit at least one laser beam along a beam axis. A receiver includes a detector die mounted on the micro-optical substrate and configured to sense light received by the module along a collection axis of the receiver. Beam-combining optics are configured to direct the laser beam and the received light so that the beam axis is aligned with the collection axis outside the module.

Abstract translation: 光电子模块包括微光学衬底和光束发射器，其包括安装在微光学衬底上并被配置为沿着光束轴线发射至少一个激光束的激光裸片。 接收器包括安装在微光学基板上并被配置为沿着接收器的收集轴感测由模块接收的光的检测器管芯。 光束组合光学器件被配置为引导激光束和接收的光，使得光束轴线与模块外部的收集轴线对齐。

公开(公告)号：US09123611B1

公开(公告)日：2015-09-01

申请号：US14063627

申请日：2013-10-25

Applicant: Jefferson Science Associates, LLC

Inventor： John E. McKisson ,  Fernando Barbosa

IPC: G01J1/44 ,  H01L27/146

CPC classification number: H04N5/3698 ,  G01J1/44 ,  G01J2001/444 ,  G01J2001/4466 ,  H04N5/365

Abstract: A method for designing a completely passive bias compensation circuit to stabilize the gain of multiple pixel avalanche photo detector devices. The method includes determining circuitry design and component values to achieve a desired precision of gain stability. The method can be used with any temperature sensitive device with a nominally linear coefficient of voltage dependent parameter that must be stabilized. The circuitry design includes a negative temperature coefficient resistor in thermal contact with the photomultiplier device to provide a varying resistance and a second fixed resistor to form a voltage divider that can be chosen to set the desired slope and intercept for the characteristic with a specific voltage source value. The addition of a third resistor to the divider network provides a solution set for a set of SiPM devices that requires only a single stabilized voltage source value.

Abstract translation: 一种用于设计完全无源偏置补偿电路以稳定多像素雪崩光电检测器器件的增益的方法。 该方法包括确定电路设计和分量值以实现增益稳定性的期望精度。 该方法可用于具有必须稳定的额定线性系数的电压相关参数的任何温度敏感器件。 电路设计包括与光电倍增器装置热接触以提供变化电阻的负温度系数电阻器和第二固定电阻器，以形成分压器，该电压分压器可被选择以用特定电压源为特性设置所需的斜率和截距 值。 向分频器网络添加第三个电阻为一组仅需要稳定的电压源值的SiPM器件提供解决方案。

公开(公告)号：US20150168211A1

公开(公告)日：2015-06-18

申请号：US14414718

申请日：2013-08-01

Applicant: NEC CORPORATION

Inventor： Rintaro Nomura

IPC: G01J1/18

CPC classification number: G01J1/18 ,  G01J1/44 ,  G01J2001/186 ,  G01J2001/444 ,  G01J2001/4466 ,  H03M1/1038 ,  H04B10/69

Abstract: The objective of the present invention is to quickly and precisely correct the measured value for light reception power to the actual value with few resources, by installing a correction device for a light reception power monitor for signal light in an optical module. The correction device is equipped with a correction table which is referenced when correcting the measured value for the light reception power of signal light, and in this correction table multiple correction values are stored in advance on the basis of the correspondence relationships between multiple reference values and multiple actual values. In the correction table, for segments wherein the change in the actual values with respect to the change in the measured values is small, the interval between the reference values is made smaller and more correction values are stored than for segments wherein the change in the actual values with respect to the change in the measured values is large. When an input value indicating the measured value for the light reception power of the signal light matches a reference value in the correction table, the correction device reads from the correction table the correction value corresponding to the reference value. When an input value does not match a reference value in the correction table, the correction device calculates a correction value in accordance with a prescribed calculation formula on the basis of the input value.

Abstract translation: 本发明的目的是通过在光学模块中安装用于信号光的光接收功率监视器的校正装置，以很少的资源将光接收功率的测量值快速和精确地校正为实际值。 校正装置配备有校正表，其在校正信号光的光接收功率的测量值时参考，并且在该校正表中，根据多个参考值与多个参考值之间的对应关系预先存储多个校正值 多个实际值。 在校正表中，对于其中实际值相对于测量值的变化的变化小的段，使参考值之间的间隔变小并且存储更多的校正值而不是实际值的变化 关于测量值的变化的值很大。 当指示信号光的光接收功率的测量值的输入值与校正表中的参考值相匹配时，校正装置从校正表读取与参考值对应的校正值。 当校正表中的输入值与参考值不匹配时，校正装置根据输入值根据规定的计算公式计算校正值。

公开(公告)号：US20150144797A1

公开(公告)日：2015-05-28

申请号：US14088124

申请日：2013-11-22

Applicant: General Electric Company

Inventor： Sergei Ivanovich Dolinsky ,  Jianjun Guo

IPC: G01T1/24 ,  H01L31/102 ,  G01J1/44 ,  H01L31/115 ,  G01T1/20 ,  G01T1/208

CPC classification number: G01T1/248 ,  G01J1/44 ,  G01J2001/4466 ,  G01T1/2006 ,  G01T1/208 ,  G01T1/247 ,  G01T1/249 ,  H01L31/102 ,  H01L31/115

Abstract: Photomultipliers are disclosed which comprise circuitry for detecting photo electric events and generating short digital pulses in response. In one embodiment, the photomultipliers comprise solid state photomultipliers having an array of microcells. The microcells, in one embodiment, in response to incident photons, generate a digital pulse signal having a duration of about 2 ns or less.

Abstract translation: 公开了包括用于检测光电事件并响应地产生短数字脉冲的电路的光电倍增管。 在一个实施例中，光电倍增管包括具有微小区阵列的固态光电倍增管。 在一个实施例中，响应于入射光子的微单元产生具有约2ns或更短持续时间的数字脉冲信号。

公开(公告)号：US09029774B2

公开(公告)日：2015-05-12

申请号：US13881274

申请日：2011-06-28

Applicant: Abdessattar Bouzid ,  Sung Wook Moon ,  Dong Hoon Yi ,  Se Min Kim

Inventor： Abdessattar Bouzid ,  Sung Wook Moon ,  Dong Hoon Yi ,  Se Min Kim

IPC: G01J5/20 ,  H01L31/09 ,  G01J1/44

CPC classification number: H01L31/09 ,  G01J1/44 ,  G01J2001/442 ,  G01J2001/4466

Abstract: The present invention relates to a single photon detector (SPD) at telecom wavelength of 1.55 μm based on InGaAs/InP avalanche photodiode (APD). In order to operate the SPD at a low after-pulse noise, a DC bias voltage lower than the breakdown voltage is applied to an InGaAs/InP APD. A bipolar rectangular gating signal is superimposed with the DC bias voltage and applied to the APD so as to exceed the breakdown voltage during the gate-on time of each period of the gate signal. The use of the bipolar rectangular gating signal enabling us to operate the APD well below the breakdown voltage during the gate-off time, thereby make the release of the trapped charge carriers faster and then reduces the after-pulse noise. As a result, it permits to increase the repetition rate of the SPD.

Abstract translation: 本发明涉及基于InGaAs / InP雪崩光电二极管（APD）的电信波长为1.55μm的单光子检测器（SPD）。 为了在低后脉冲噪声下操作SPD，将低于击穿电压的DC偏置电压施加到InGaAs / InP APD。 双极矩形门控信号与直流偏置电压叠加并施加到APD，以便在栅极信号的每个周期的栅极导通时间内超过击穿电压。 使用双极矩形门控信号，使得我们能够在栅极截止时间内将APD远低于击穿电压，从而使捕获的电荷载体更快地释放，然后降低脉冲后噪声。 结果，它允许增加SPD的重复率。

公开(公告)号：US20150034808A1

公开(公告)日：2015-02-05

申请号：US14517471

申请日：2014-10-17

Applicant: Kabushiki Kaisha Toshiba

Inventor： Zhiliang YUAN ,  Andrew James Shields

IPC: G01J1/44

CPC classification number: G01J1/44 ,  G01J2001/442 ,  G01J2001/4466 ,  H04B10/697

Abstract: A photon detection system including a photon detector configured to detect single photons, a signal divider to divide the output signal of the photon detector into a first part and a second part, wherein the first part is substantially identical to the second part, a delay mechanism to delay the second part with respect to the first part, and a combiner to combine the first and delayed second parts of the signal such that the delayed second part is used to cancel periodic variations in the first part of the output signal.

Abstract translation: 一种光子检测系统，包括配置成检测单个光子的光子检测器，用于将光子检测器的输出信号划分成第一部分和第二部分的信号分配器，其中第一部分基本上与第二部分相同;延迟机构 相对于第一部分延迟第二部分，以及组合器，以组合信号的第一和延迟的第二部分，使得延迟的第二部分被用于消除输出信号的第一部分中的周期性变化。

公开(公告)号：US20140361151A1

公开(公告)日：2014-12-11

申请号：US14344493

申请日：2012-09-11

Applicant: Rintaro Nomura

Inventor： Rintaro Nomura

IPC: G01J1/44 ,  G01K13/00

CPC classification number: G01J1/44 ,  G01J2001/4466 ,  G01K13/00 ,  H03F3/087

Abstract: An optical power monitoring device is provided with: an APD as a photodiode that converts the power of light to a current (Iapd); a resistor that is connected in parallel to the APD; a current mirror circuit that detects, as a first current value (I1), the value corresponding to the sum of the current (Irb) flowing through the resistor and the current (Iapd) flowing through the APD; and a control unit. The control unit stores in advance a value corresponding to the current flowing through the resistor as a second current value (I2), and determines the current (Iapd) flowing through the APD on the basis of the second current value (I2) and the first current value (I1) detected by the current mirror circuit.

Abstract translation: 光功率监测装置具有：作为将光的功率转换成电流（Iapd）的光电二极管的APD; 与APD并联连接的电阻器; 检测作为第一电流值（I1）的与流过电阻器的电流（Irb）和流过APD的电流（Iapd）之和相对应的值的电流镜电路; 和控制单元。 控制单元预先存储与流过电阻器的电流对应的值作为第二电流值（I2），并且基于第二电流值（I2）和第一电流值（I2）确定流过APD的电流（Iapd） 由电流镜电路检测的电流值（I1）。