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6 条记录 (耗时 0.037 秒)

    Wide dynamic range optical power detector
    1.
    发明授权
    Wide dynamic range optical power detector 有权
    宽动态范围光功率检测器

    公开(公告)号：US06677570B1

    公开(公告)日：2004-01-13

    申请号：US09847506

    申请日：2001-05-02

    申请人： Yakov Kogan ,  Donald McDaniel ,  Reich Watterson

    发明人： Yakov Kogan ,  Donald McDaniel ,  Reich Watterson

    IPC分类号： H01J4014

    CPC分类号： G01J1/4257 ,  G01J1/02 ,  G01J1/0252

    摘要： According to an aspect of the present invention, a power detector including a photodiode and a logarithmic transimpedance amplifier is mounted inside a hermetically sealed package in such a way that the photodiode and the logarithmic transimpedance amplifier are located on the same thermally conductive substrate.

    摘要翻译： 根据本发明的一个方面，包括光电二极管和对数跨阻抗放大器的功率检测器安装在密封封装内，使得光电二极管和对数跨阻抗放大器位于相同的导热基板上。

    Wavelength reference device
    2.
    发明授权
    Wavelength reference device 失效
    波长参考装置

    公开(公告)号：US06594022B1

    公开(公告)日：2003-07-15

    申请号：US09644781

    申请日：2000-08-23

    申请人： Reich Watterson ,  Parviz Tayebati ,  Kevin McCallion ,  Daryoosh Vakhshoori

    发明人： Reich Watterson ,  Parviz Tayebati ,  Kevin McCallion ,  Daryoosh Vakhshoori

    IPC分类号： G01B902

    CPC分类号： H01S5/0687 ,  G01J9/0246 ,  H01S5/18366 ,  H01S5/18388

    摘要： A wavelength reference device for tuning a tunable Fabry-Perot filter and/or a tunable VCSEL to a desired frequency, where the device uses a Fizeau interferometer and a position sensitive detector, with the position sensitive detector being used to measure the location of the maximum reflected power from the interferometer, whereby to determine the wavelength of laser radiation for tuning the device.

    摘要翻译： 用于将可调谐Fabry-Perot滤波器和/或可调谐VCSEL调谐到所需频率的波长参考装置，其中该装置使用Fizeau干涉仪和位置敏感检测器，位置敏感检测器用于测量最大值的位置 来自干涉仪的反射功率，从而确定用于调谐该装置的激光辐射的波长。

    Single etalon optical wavelength reference device
    3.
    发明授权
    Single etalon optical wavelength reference device 失效
    单标准光学波长参考装置

    公开(公告)号：US06526079B1

    公开(公告)日：2003-02-25

    申请号：US09636817

    申请日：2000-08-10

    申请人： Reich Watterson ,  Parviz Tayebati ,  Kevin McCallion

    发明人： Reich Watterson ,  Parviz Tayebati ,  Kevin McCallion

    IPC分类号： H01S313

    CPC分类号： H01S5/0687 ,  H01S5/0078 ,  H01S5/183

    摘要： A compact wavelength monitoring and control assembly for a narrow band source is provided comprising a narrow bandpass, wavelength selective transmission filter element, of Fabry-Perot structure, through which two collimated beams from a laser source are directed onto two photodetectors. The differential output of the two photodetectors is used in a feedback loop to stabilize the source to the desired wavelength. Through the dependence of the wavelength transmission of the Fabry-Perot etalon on angle and physical parameters, a wavelength variation of the source is converted into a transmission loss, which is different for the detectors, so that the wavelength change is detected by changes in the signals output from the detectors. Through the controlled variation of the source wavelength in the vicinity of the transmission maximum of the etalon, the absolute frequency of the Fabry-Perot locking point may be confirmed by the variation of the ratio of the detector signals.

    摘要翻译： 提供了一种用于窄带源的紧凑型波长监测和控制组件，其包括法布里 - 珀罗结构的窄带通波长选择性透射滤波器元件，来自激光源的两个准直束通过该波长选择透射滤波器元件被引导到两个光电检测器上。 两个光电检测器的差分输出用于反馈回路，以将源稳定到期望的波长。 通过法布里 - 珀罗标准具的波长传输对角度和物理参数的依赖性，源的波长变化被转换为传感器损耗，这对于检测器是不同的，因此波长变化通过 从检测器输出的信号。 通过在标准具的传输最大值附近的源波长的受控变化，法布里 - 珀罗锁定点的绝对频率可以通过检测器信号的比率的变化来确定。

    Double etalon optical wavelength reference device
    6.
    发明授权
    Double etalon optical wavelength reference device 有权
    双标准光波长参考装置

    公开(公告)号：US06498800B1

    公开(公告)日：2002-12-24

    申请号：US09636807

    申请日：2000-08-10

    申请人： Reich Watterson ,  Parviz Tayebati ,  Don McDaniel ,  Kevin McCallion

    发明人： Reich Watterson ,  Parviz Tayebati ,  Don McDaniel ,  Kevin McCallion

    IPC分类号： H01S310

    CPC分类号： G01J9/0246 ,  G01J2009/0257 ,  H01S5/0078 ,  H01S5/0687 ,  H01S5/18366 ,  H01S5/18388

    摘要： A compact wavelength monitoring and control assembly for a narrow band (i.e., laser) source is provided, comprising two narrow bandpass, wavelength selective transmission filter elements of Fabry-Perot structure through which two separate collimated beams from a laser source are directed onto two photodetectors. The spacing of the multiple transmission maxima for one etalon is chosen to match that of the desired set of frequencies to be used for locking purposes. The spacing of the transmission maxima for the second etalon is used, in combination with a dielectric filter, to generate a wavelength fiducial to denote an absolute frequency. The spacing of the second etalon is chosen to be much wider than the frequency grid etalon. A control circuit processes the simultaneously acquired signals from the two detectors as the laser wavelength is varied. The device functions as an optical wavelength discriminator in which the detectors convert optical energy to current (or voltage) for a feedback loop for controlling the laser source. Any one of a large number of discrete, predetermined wavelengths may be chosen for locking using the same device. The system is compact and may be packaged within the same temperature controlled laser assembly for maximum performance and minimum circuit board space requirements.

    摘要翻译： 提供了一种用于窄带（即激光）源的紧凑型波长监视和控制组件，其包括法布里 - 珀罗结构的两个窄带通波长选择性透射滤波器元件，来自激光源的两个分离的准直光束通过该组件被引导到两个光电检测器 。 选择一个标准具的多个传输最大值的间距以匹配要用于锁定目的的期望频率组的间隔。 与介质滤波器组合使用第二标准具的透射最大值的间隔以产生表示绝对频率的波长基准。 第二个标准具的间距被选择为比频率网格标准具宽得多。 当激光波长变化时，控制电路处理来自两个检测器的同时采集的信号。 该器件用作光学波长鉴别器，其中检测器将光能转换成用于控制激光源的反馈回路的电流（或电压）。 可以选择大量离散的预定波长中的任何一个用于使用相同的装置进行锁定。 该系统紧凑，可以封装在相同的温度控制激光器组件中，以实现最大的性能和最小的电路板空间要求。