Precise Broadband Frequency Modulated Laser
    1.
    发明申请
    Precise Broadband Frequency Modulated Laser 有权
    精密宽带调频激光器

    公开(公告)号:US20150071315A1

    公开(公告)日:2015-03-12

    申请号:US14538789

    申请日:2014-11-11

    Abstract: A method and apparatus are described including a laser with a plurality of internal or external actuators for affecting an optical frequency of light output by the laser, wherein the plurality of actuators have a corresponding plurality of different frequency response bands for changing optical properties of the laser and a corresponding plurality of actuation ranges of optical frequencies affected. Also included is an optical detector, and a plurality of optical paths configured to direct light output by the laser onto the detector. A laser controller is configured to provide a plurality of inputs to the plurality of actuators based on a detector signal output from the optical detector and the corresponding frequency response bands and actuation ranges.

    Abstract translation: 描述了一种方法和装置,其包括具有多个内部或外部致动器的激光器,用于影响由激光器输出的光的光频率,其中多个致动器具有对应的多个不同的频率响应带,用于改变激光器的光学特性 并且受影响的光频率的相应的多个致动范围。 还包括光学检测器,以及多个光路,被配置为将由激光器输出的光引导到检测器上。 激光控制器被配置为基于从光学检测器输出的检测器信号和相应的频率响应带和致动范围向多个致动器提供多个输入。

    Precise broadband frequency modulated laser
    2.
    发明授权
    Precise broadband frequency modulated laser 有权
    精密宽带调频激光器

    公开(公告)号:US08913636B2

    公开(公告)日:2014-12-16

    申请号:US13318135

    申请日:2010-04-29

    Abstract: A method, apparatus and computer-readable storage medium are described for a tunable laser source that produces a desired frequency modulated optical waveform with a precision within 0.01 percent over a bandwidth greater than about 50 gigaHertz. An apparatus includes a tunable laser having one or more drive inputs for affecting an optical frequency of light output by the laser; and an optical detector. Multiple optical paths are configured to direct light output by the laser onto the optical detector. A laser controller is configured to provide to a drive input a loopback signal based on a measured or predetermined difference in optical dispersion among the plurality of optical paths and a detector signal output from the optical detector. In some embodiments, a ranging device includes the tunable laser source.

    Abstract translation: 对于可调谐激光源描述了一种方法,装置和计算机可读存储介质,其可产生期望的频率调制光波形,其精度在大于约50千兆赫(Hz)以上的带宽上的0.01%以内。 一种装置包括具有一个或多个驱动输入的可调激光器,用于影响由激光器输出的光的光频率; 和光学检测器。 多个光路被配置为将激光输出的光引导到光学检测器上。 激光控制器被配置为基于多个光路中的光学色散的测量或预定差异以及从光学检测器输出的检测器信号向驱动输入提供环回信号。 在一些实施例中,测距装置包括可调激光源。

    Precise Broadband Frequency Modulated Laser
    3.
    发明申请
    Precise Broadband Frequency Modulated Laser 有权
    精密宽带调频激光器

    公开(公告)号:US20120106579A1

    公开(公告)日:2012-05-03

    申请号:US13318135

    申请日:2010-04-29

    Abstract: A method, apparatus and computer-readable storage medium are described for a tunable laser source that produces a desired frequency modulated optical waveform with a precision within 0.01 percent over a bandwidth greater than about 50 gigaHertz. An apparatus includes a tunable laser having one or more drive inputs for affecting an optical frequency of light output by the laser; and an optical detector. Multiple optical paths are configured to direct light output by the laser onto the optical detector. A laser controller is configured to provide to a drive input a loopback signal based on a measured or predetermined difference in optical dispersion among the plurality of optical paths and a detector signal output from the optical detector. In some embodiments, a ranging device includes the tunable laser source.

    Abstract translation: 对于可调谐激光源描述了一种方法,装置和计算机可读存储介质,其可产生期望的频率调制光波形,其精度在大于约50千兆赫(Hz)以上的带宽上的0.01%以内。 一种装置包括具有一个或多个驱动输入的可调激光器,用于影响由激光器输出的光的光频率; 和光学检测器。 多个光路被配置为将激光输出的光引导到光学检测器上。 激光控制器被配置为基于多个光路中的光学色散的测量或预定差异以及从光学检测器输出的检测器信号向驱动输入提供环回信号。 在一些实施例中,测距装置包括可调激光源。

    Precise broadband frequency modulated laser
    4.
    发明授权
    Precise broadband frequency modulated laser 有权
    精密宽带调频激光器

    公开(公告)号:US09559486B2

    公开(公告)日:2017-01-31

    申请号:US14538789

    申请日:2014-11-11

    Abstract: A method and apparatus are described including a laser with a plurality of internal or external actuators for affecting an optical frequency of light output by the laser, wherein the plurality of actuators have a corresponding plurality of different frequency response bands for changing optical properties of the laser and a corresponding plurality of actuation ranges of optical frequencies affected. Also included is an optical detector, and a plurality of optical paths configured to direct light output by the laser onto the detector. A laser controller is configured to provide a plurality of inputs to the plurality of actuators based on a detector signal output from the optical detector and the corresponding frequency response bands and actuation ranges.

    Abstract translation: 描述了一种方法和装置,其包括具有多个内部或外部致动器的激光器,用于影响由激光器输出的光的光频率,其中多个致动器具有对应的多个不同的频率响应带,用于改变激光器的光学特性 并且受影响的光频率的相应的多个致动范围。 还包括光学检测器,以及多个光路,被配置为将由激光器输出的光引导到检测器上。 激光控制器被配置为基于从光学检测器输出的检测器信号和相应的频率响应带和致动范围向多个致动器提供多个输入。

    Laser sensor using optical feedback-induced frequency modulation
    5.
    发明授权
    Laser sensor using optical feedback-induced frequency modulation 失效
    激光传感器采用光反馈感应调频

    公开(公告)号:US5808743A

    公开(公告)日:1998-09-15

    申请号:US629361

    申请日:1996-04-05

    CPC classification number: G01H9/00 G01S17/06 G01S7/4916 G01S17/50

    Abstract: This invention provides an inexpensive, sensitive sensor to measure target position, velocity and vibration based on optical feedback-induced fluctuations in the operating frequency of a diode laser. The sensor comprises a diode laser, an optical frequency discriminator to measure the laser operating frequency, and an electronic signal analyzer to obtain the modulation frequency of the laser operating frequency. This invention further includes two calibration mechanisms for vibration amplitude measurement. In a first calibration mechanism the diode laser is mounted on a laser vibrator, which vibrates the laser relative to the target. In a second calibration mechanism a frequency modulator is coupled to the diode laser to modulate the operating frequency.

    Abstract translation: 本发明提供了一种廉价的灵敏传感器,用于基于二极管激光器的工作频率的光学反馈引起的波动来测量目标位置,速度和振动。 传感器包括二极管激光器,用于测量激光器工作频率的光学鉴频器,以及用于获得激光器工作频率的调制频率的电子信号分析器。 本发明还包括用于振幅测量的两个校准机构。 在第一校准机构中,二极管激光器安装在激光振动器上,激光振动器相对于目标振动激光器。 在第二校准机构中,频率调制器耦合到二极管激光器以调制工作频率。

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