公开(公告)号：EP0099193A3

公开(公告)日：1986-08-20

申请号：EP83303550

申请日：1983-06-20

申请人： THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY

发明人： Shaw, Herbert John ,  Goodman, Joseph W. ,  Bowers, John E. ,  Tur, Moshe ,  Moslehi, Behzad

IPC分类号： G06G09/00

CPC分类号： G02B6/2861 ,  G06E3/001

摘要： An array (48, 49, 50, 51 ) of fiber optic couplers coupling an input (45) and an output (46) waveguide. The output waveguide (46) is routed among the couplers of the array such that either backward or forward coupling exists. With backward coupling, energy coupled into the output waveguide (46) in a coupler of the array is guided back to the preceding coupler for coupling back into the input waveguide (45). The backward coupling allows recirculations to occur between couplers to create poles and zeroes in the transfer function of the array which transfer function can be programmed or tailored somewhat to have specific characteristics. Further, the backward coupling allows the array to be used for matrix-vector multiplication.

公开(公告)号：EP0165773A2

公开(公告)日：1985-12-27

申请号：EP85304203.4

申请日：1985-06-13

申请人： THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY

发明人： Moslehi, Behzad ,  Tur, Moshe ,  Goodman, Joseph ,  Shaw, Herbert J.

IPC分类号： G02B6/28 ,  G06G9/00 ,  H04B9/00

CPC分类号： H04L25/03057 ,  G02B6/2861

摘要： A fiber optic lattice filter having a transfer function wherein the poles and zeros are adjustable independently of each other. The filter comprises a cascaded configuration of recursive (100) and non-recursive (102) fiber optic lattice filters. In one preferred embodiment, an all-pass fiber optic filter is formed by cascading all-pole and all-zero lattice filters, and by processing the resulting filtered output signal in a subtractive detection system (104). This detection system produces a signal which represents the difference between two signal outputs provided by the all-zero filter section, and which is adjustable in magnitude, thereby providing an overall filtering function which is capable of handling both positive and negative valued input signals.

摘要翻译： 一种具有传递函数的光纤格栅滤波器，其中极和零可彼此独立地调节。 滤波器包括递归（100）和非递归（102）光纤网格滤波器的级联配置。 在一个优选实施例中，全通光纤滤波器通过级联全极点和全零点阵滤波器以及通过在减法检测系统（104）中处理所得到的滤波输出信号而形成。 该检测系统产生一个信号，该信号表示由全零滤波器部分提供的两个信号输出之间的差异，其可在幅度上调节，从而提供能够处理正值和负值输入信号的总体滤波功能。

公开(公告)号：EP0099193A2

公开(公告)日：1984-01-25

申请号：EP83303550.4

申请日：1983-06-20

申请人： THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY

发明人： Shaw, Herbert John ,  Goodman, Joseph W. ,  Bowers, John E. ,  Tur, Moshe ,  Moslehi, Behzad

IPC分类号： G06E3/00

CPC分类号： G02B6/2861 ,  G06E3/001

摘要： An array (48, 49, 50, 51 ) of fiber optic couplers coupling an input (45) and an output (46) waveguide. The output waveguide (46) is routed among the couplers of the array such that either backward or forward coupling exists. With backward coupling, energy coupled into the output waveguide (46) in a coupler of the array is guided back to the preceding coupler for coupling back into the input waveguide (45).
The backward coupling allows recirculations to occur between couplers to create poles and zeroes in the transfer function of the array which transfer function can be programmed or tailored somewhat to have specific characteristics.
Further, the backward coupling allows the array to be used for matrix-vector multiplication.

摘要翻译： 光纤耦合器耦合的阵列（48，49，50，51）的输入（45）和在输出端（46）的波导。 输出波导（46）的阵列搜索的成色之间被路由确实要么向前或向后耦合存在。 随着向后耦合，耦合到所述阵列的耦合器的输出波导（46）的能量被引导回preceding-耦合器用于耦合回输入波导（45）。 向后耦合允许再循环到耦合器之间可能发生在哪个传递函数可以被编程或稍微定制为具有特定特性的阵列的传递函数来创建极点和零点。 此外，后向耦合允许将用于矩阵 - 向量乘法阵列。

公开(公告)号：EP0099193B1

公开(公告)日：1990-05-16

申请号：EP83303550.4

申请日：1983-06-20

申请人： THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY

发明人： Shaw, Herbert John ,  Goodman, Joseph W. ,  Bowers, John E. ,  Tur, Moshe ,  Moslehi, Behzad

IPC分类号： G06E3/00

CPC分类号： G02B6/2861 ,  G06E3/001

公开(公告)号：EP0165773A3

公开(公告)日：1989-07-12

申请号：EP85304203.4

申请日：1985-06-13

申请人： THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY

发明人： Moslehi, Behzad ,  Tur, Moshe ,  Goodman, Joseph ,  Shaw, Herbert J.

IPC分类号： G02B6/28 ,  G06G9/00 ,  H04B9/00

CPC分类号： H04L25/03057 ,  G02B6/2861

摘要： A fiber optic lattice filter having a transfer function wherein the poles and zeros are adjustable independently of each other. The filter comprises a cascaded configuration of recursive (100) and non-recursive (102) fiber optic lattice filters. In one preferred embodiment, an all-pass fiber optic filter is formed by cascading all-pole and all-zero lattice filters, and by processing the resulting filtered output signal in a subtractive detection system (104). This detection system produces a signal which represents the difference between two signal outputs provided by the all-zero filter section, and which is adjustable in magnitude, thereby providing an overall filtering function which is capable of handling both positive and negative valued input signals.