Adjustable fiber optical filters
    22.
    发明授权
    Adjustable fiber optical filters 失效
    可调式光纤滤光片

    公开(公告)号:US06912343B1

    公开(公告)日:2005-06-28

    申请号:US10268622

    申请日:2002-10-09

    CPC classification number: G02B6/29332 G02B6/266 G02B6/30

    Abstract: Adjustable filters formed in fibers or waveguides based on evanescent coupling, where a coupling layer is formed between a waveguide overlay and a side-polished coupling port on the fiber or waveguide. A control mechanism may be provided to adjust a property of at least one of the waveguide overlay and the coupling layer to adjust the output of the filter.

    Abstract translation: 基于ev逝耦合的在光纤或波导中形成的可调滤光器,其中耦合层形成在光纤或波导上的波导覆盖层和侧抛光耦合端口之间。 可以提供控制机构来调节波导覆盖层和耦合层中的至少一个的特性以调节滤波器的输出。

    Semiconductor radiation detector with downconversion element
    24.
    发明授权
    Semiconductor radiation detector with downconversion element 有权
    具有下变频元件的半导体辐射探测器

    公开(公告)号:US06194726B1

    公开(公告)日:2001-02-27

    申请号:US09158639

    申请日:1998-09-22

    Abstract: A radiation detection device for gamma radiation is disclosed having an array of crystals optically positioned adjacent an optional collimator, the crystals emitting visible light upon illumination by the incident gamma radiation. An array of photodetectors is optically positioned adjacent the crystal array on the side of the crystal array opposite that of the collimator. A select photodetector in the photodetector array provides an output signal when the select photodetector is illuminated by the visible light. An integrated circuit having an input from the output signals of said array of photodetectors is used to process and output signals indicative of the intensity and position of the gamma radiation.

    Abstract translation: 公开了一种用于伽马辐射的放射线检测装置,其具有邻近可选的准直器光学定位的晶体阵列,该晶体在入射的伽马辐射照射时发射可见光。 光学器件的阵列在晶体阵列侧面与准直器相反的晶体阵列处于光学位置。 当选择光电检测器被可见光照亮时,光电检测器阵列中的选择光电检测器提供输出信号。 使用具有来自所述光电检测器阵列的输出信号的输入的集成电路来处理和输出指示伽马辐射的强度和位置的信号。

    Front end data readout chip
    25.
    发明授权
    Front end data readout chip 失效
    前端数据读出芯片

    公开(公告)号:US5696458A

    公开(公告)日:1997-12-09

    申请号:US460489

    申请日:1995-06-02

    CPC classification number: G01J1/44

    Abstract: A multi-channel readout chip is provided in which each channel has an analog section and a digital section. Each channel of the readout chip employs low noise charge amplifiers with self trigger and calibration capabilities to provide timing information with better than 20 nanosecond precision. The trigger threshold can be adjusted to provide energy discrimination. The chip has a sparse readout function in which only the channels which have received signals greater than a preselected threshold value are readout, thus providing fast data acquisition capabilities.

    Abstract translation: 提供多通道读出芯片,其中每个通道具有模拟部分和数字部分。 读出芯片的每个通道采用具有自我触发和校准功能的低噪声电荷放大器,以提供优于20纳秒精度的定时信息。 可以调整触发阈值以提供能量鉴别。 芯片具有稀疏读出功能,其中仅读取已经接收到大于预选阈值的信号的信道,从而提供快速的数据采集能力。

    Stabilized and integrated fiber devices
    30.
    发明授权
    Stabilized and integrated fiber devices 有权
    稳定和集成的光纤设备

    公开(公告)号:US06549713B1

    公开(公告)日:2003-04-15

    申请号:US09894971

    申请日:2001-06-27

    Applicant: Bo Pi Shulai Zhao

    Inventor: Bo Pi Shulai Zhao

    CPC classification number: G02B6/3636 G02B6/3652 G02B6/3692 G02B6/3855

    Abstract: Techniques for forming fiber devices that engage fibers to a substrate with similar material properties. A semiconductor template may be used to define positions and orientations of the fibers.

    Abstract translation: 用于形成将纤维接合到具有相似材料性质的基底的纤维装置的技术。 可以使用半导体模板来限定纤维的位置和取向。

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