公开(公告)号：WO1996009737A1

公开(公告)日：1996-03-28

申请号：PCT/US1995012152

申请日：1995-09-22

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  FRITZ, Daniel, J. ,  BAILEY, Timothy, J. ,  BALL, Gary, A.

IPC: H04Q11/00

CPC classification number: G02B6/351 ,  G02B6/2932 ,  G02B6/29322 ,  G02B6/3534 ,  G02B6/3546 ,  G02B6/356 ,  G02B6/3578 ,  H04Q11/0005 ,  H04Q2011/0009 ,  H04Q2011/0015 ,  H04Q2011/0022 ,  H04Q2011/0026 ,  H04Q2011/0039 ,  H04Q2011/0052

Abstract: An all fiber wavelength selective optical switch has one or more 1xN input optical couplers (20, 120), each having an input signal with a plurality of wavelengths ( lambda 1, lambda 2, lambda 3). The output signals from the couplers (20, 120) are connected to fibers (26, 32, 126, 158) having Bragg gratings impressed therein, each having a central reflection wavelength, and each having a tuner attached thereto for detuning a central reflection wavelength of the gratings from a base wavelength corresponding to a wavelength of the input signal. For a given grating to pass a particular wavelength of the input signal that grating must be detuned. The fibers (26, 32, 126, 158) are also connected to one or more Nx1 couplers (66, 98) to combine input signals from different input couplers. The switch allows any combination of input wavelengths from any input signal to be selectively switched to one or more output ports.

Abstract translation: 全光纤波长选择光开关具有一个或多个1xN输入光耦合器（20,120），每个具有多个波长（λ1，λ2，λ3）的输入信号。 来自耦合器（20,120）的输出信号被连接到其中印有布拉格光栅的光纤（26,32,126,158），每个具有中心反射波长，并且每个具有附接到其上的调谐器以使中心反射波长失谐 从与输入信号的波长相对应的基波长的光栅。 对于给定的光栅来传递光栅必须失谐的输入信号的特定波长。 光纤（26,32,126,158）也连接到一个或多个Nx1耦合器（66,98）以组合来自不同输入耦合器的输入信号。 开关允许来自任何输入信号的输入波长的任何组合被选择性地切换到一个或多个输出端口。