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    • 2. 发明授权
    • Fiber optic network using space and wavelength multiplexed data channel
arrays
    • 光纤网络采用空间和波长复用数据通道阵列
    • US6023361A
    • 2000-02-08
    • US231054
    • 1999-01-14
    • Joseph E. FordWayne H. KnoxAshok V. KrishnamoorthyDavid A. B. MillerMartin C. Nuss
    • Joseph E. FordWayne H. KnoxAshok V. KrishnamoorthyDavid A. B. MillerMartin C. Nuss
    • H04B10/155H04J14/02H04Q11/00G02F1/13
    • H04B10/506H04Q11/0005H04J14/02H04Q2011/0016H04Q2011/0026
    • A network for multi-bit word parallel communication between optoelectronic chips on a two dimensional array of optical input and output channels carried on a single dimension of optical fibers. Each bit of a word is carried on a different wavelength and the multiple wavelengths carrying a word are wavelength multiplexed onto a single optical fiber. Multiple fibers can be joined into a one dimensional array of fibers. A transceiver for transmitting and receiving along the optical data channels comprises an array of modulators powered by individual wavelength light beams, either from individual monochromatic light sources and a light beam from a single broadband light source made to pass through a diffraction grating. The modulators are positioned so that each modulator reflects a different wavelength light beam, thereby providing multiple optical channels. Alternatively, multiple wavelengths are generated from CMOS integrated light sources. These multiple optical channels are then collimated and guided into one single mode fiber or multiple multimode fibers at its transmitting end. At the receiving end a diffraction grating is used to separate the distinct data channels by their individual wavelengths. The multiple wavelengths are then caused to fall on an array of optical detectors spaced according to the individual wavelengths to be detected. By constructing a one dimensional array of these fibers, a two dimensional array of optical data channels is realized. The size of the array is determined by the number of fibers and the number of distinct wavelengths combined in each fiber.
    • 用于在单个维度的光纤上承载的光输入和输出通道的二维阵列上的光电子芯片之间的多位字并行通信的网络。 一个字的每个位都承载不同的波长,并且携带一个字的多个波长被波长复用到单个光纤上。 多根纤维可以连接成一维的纤维阵列。 用于沿着光学数据通道发送和接收的收发器包括由单个波长光束供电的调制器阵列,其由单个单色光源和来自通过衍射光栅的单个宽带光源的光束。 调制器被定位成使得每个调制器反射不同的波长光束,从而提供多个光学通道。 或者,从CMOS集成光源产生多个波长。 然后,这些多个光信道在其发射端被准直并被引导到一个单模光纤或多个多模光纤中。 在接收端,衍射光栅用于通过其各自的波长分离不同的数据通道。 然后使多个波长落在根据待检测的各个波长间隔开的光学检测器阵列上。 通过构造这些光纤的一维阵列,实现了光数据信道的二维阵列。 阵列的大小由纤维的数量和每个光纤中组合的不同波长的数量决定。
    • 9. 发明授权
    • Sweep drive circuit for a streak camera
    • 扫描驱动电路为条纹相机
    • US4413178A
    • 1983-11-01
    • US246830
    • 1981-03-23
    • Gerard A. MourouWayne H. Knox
    • Gerard A. MourouWayne H. Knox
    • G04F13/02H01J29/98H01J31/50
    • G04F13/026H01J29/98
    • An inexpensive, simple and highly accurate sweep drive circuit for streak cameras generates a ramp voltage for the deflection plates of an image converter tube of a streak camera. A solid state switch is used in a manner which eliminates the need for a pulsed multi-kilovolt bias voltage and the use of cryogenics. High voltage direct current in the multi-kilovolt range is applied to a charged circuit which may include a high voltage capacitor or use the capacitance presented by the deflection plates of the tube. The switch is laser activated and becomes photo-conducting. The charge in the capacitor passes through a charging resistor which controls the sweep rate to the deflection plates. After the activating laser pulse, the switch returns rapidly to a nonconducting state, during the recombination time of the switch material. The photo-electron beam is swept linearly over a substantial portion of the recombination time from off the image forming phosphor screen to off screen on the other side thereof. A resistor connected to the deflection plates provides a time constant long compared to the transient event lifetime, which may be the fluorescence decay time of the system under study, and the beam remains off the phosphor screen for a very large time compared to the fluorescence decay time. In a second configuration when the deflection plates are used as the charged source, the laser-activated switch is connected between a deflection plate and a point of reference potential (ground) through the charging resistor.
    • 用于条纹相机的廉价,简单且高精度的扫描驱动电路为条纹相机的图像转换管的偏转板产生斜坡电压。 固态开关的使用方式是消除了对脉冲多千伏偏压的需要和使用低温原理。 将多千伏范围内的高电压直流电应用于可以包括高电压电容器的充电电路或使用由管的偏转板呈现的电容。 开关被激光激活并变成光导。 电容器中的电荷通过一个控制到偏转板的扫描速率的充电电阻器。 在激活激光脉冲之后,在开关材料的复合时间期间,开关迅速返回到非导通状态。 光电子束在从图像形成荧光屏的关键复合时间的大部分线性地扫描到其另一侧的屏幕上。 连接到偏转板的电阻器与瞬态事件寿命相比提供时间常数长,这可能是正在研究的系统的荧光衰减时间,并且与荧光衰减相比,光束保持离开荧光屏非常大的时间 时间。 在偏转板用作充电源的第二配置中,激光激活开关通过充电电阻器连接在偏转板和参考点电位(接地点)之间。