公开(公告)号：US6122422A

公开(公告)日：2000-09-19

申请号：US93323

申请日：1998-06-08

申请人： Christopher Stephen Koeppen ,  Jefferson Lynn Wagener

发明人： Christopher Stephen Koeppen ,  Jefferson Lynn Wagener

IPC分类号： G02B6/293 ,  G02B6/12 ,  G02B6/34 ,  G02B6/42 ,  G02B6/26

CPC分类号： G02B6/4246 ,  G02B6/12007 ,  G02B6/29317 ,  G02B6/29323

摘要： A bidirectional waveguide tap is disclosed. The tap comprises an appropriately blazed grating in the waveguide, with coupling means in optical co-operation with the waveguide causing transfer of light from a guided mode in the waveguide to a radiation mode. Radiation mode light of a given wavelength and propagation direction is brought to a focus on a predetermined region of utilization means, e.g., an array of photosensors.

摘要翻译： 公开了一种双向波导抽头。 抽头包括在波导中的适当闪耀的光栅，耦合装置与波导光学合作，导致光从波导中的导向模式转移到辐射模式。 将给定波长和传播方向的辐射模式光聚焦到使用装置的预定区域，例如光电传感器阵列上。

公开(公告)号：US06909826B2

公开(公告)日：2005-06-21

申请号：US09948325

申请日：2001-09-06

申请人： Yongming Cai ,  Christopher Stephen Koeppen ,  Stephan F. Wielandy

发明人： Yongming Cai ,  Christopher Stephen Koeppen ,  Stephan F. Wielandy

IPC分类号： G02B6/122 ,  G01J3/18 ,  G01J3/36 ,  G02B5/18 ,  G02B6/00 ,  G02B6/293 ,  G02B6/34 ,  G02B6/42 ,  H04B10/02 ,  H04B10/08 ,  H04J14/00 ,  H04J14/02

CPC分类号： G02B6/4249 ,  G01J3/18 ,  G02B6/02085 ,  G02B6/2931 ,  G02B6/29317 ,  G02B6/29323 ,  G02B6/29385 ,  G02B6/4215 ,  G02B6/4286 ,  G02B6/4287 ,  H04B10/077 ,  H04B10/07955

摘要： An optical monitoring arrangement utilizes the properties of a blazed Bragg grating to redirect a portion of an optical signal out of the axial path and into a detecting device. A plurality of blazed Bragg gratings are utilized, each having unique properties, to increase the robustness of the monitor. In particular, by utilizing a plurality of N gratings, the bandwidth of the monitor may be increased N-fold (assuming no overlap in wavelength between gratings). Alternatively, an improvement in resolution can be obtained by utilizing a narrower bandwidth and measuring N times the number of raw data points within that bandwidth. A combination of increase in bandwidth and resolution may be obtained by a comprise between these two extremes. Chirped blazed gratings may also be employed.

摘要翻译： 光学监测装置利用闪耀的布拉格光栅的特性将光信号的一部分重新定位在轴向路径外并进入检测装置。 使用多个闪耀的布拉格光栅，每个具有独特的性质，以增加监视器的鲁棒性。 特别地，通过利用多个N个光栅，监视器的带宽可以增加N倍（假设光栅之间的波长没有重叠）。 或者，通过利用较窄的带宽并测量该带宽内的原始数据点的数量N倍，可以获得分辨率的改善。 通过在这两个极端之间构成一个可以获得带宽和分辨率增加的组合。 也可以使用啁啾闪耀的光栅。