公开(公告)号：US5784185A

公开(公告)日：1998-07-21

申请号：US699657

申请日：1996-08-19

申请人： Kevin Smith ,  Julian K. Lucek ,  Danny R. Pitcher ,  Terence Widdowson ,  David G. Moodie

发明人： Kevin Smith ,  Julian K. Lucek ,  Danny R. Pitcher ,  Terence Widdowson ,  David G. Moodie

IPC分类号： G02F1/015 ,  H04B10/50 ,  H04B10/508 ,  H04J20060101 ,  H04J3/00 ,  H04J3/02 ,  H04J3/04 ,  H04J14/08 ,  H04L7/00 ,  H04L7/033

CPC分类号： H04B10/505 ,  H04B10/508 ,  H04J14/08 ,  H04L7/0037 ,  H04L7/0075 ,  H04J14/083 ,  H04L7/0337

摘要： A receiver at a node in an optical network receives an optical clock signal and an OTDM datastream. A detector converts the clock signal to the electrical domain. A variable delay stage applies a selected delay to the clock signal in the electrical domain. A non-linear electro-optic modulator which may be an electro-absorption modulator, receives the OTDM datastream at its optical input. An electrical control input of the modulator is connected to the output of the variable delay stage. The electro-optic modulator outputs an OTDM channel selected by setting the delay of the variable delay stage. The variable delay stage may include a number of logic gates, particularly AND gates, connected between a pair of microstrip delay lines. The gates are controlled to provide different paths with different corresponding delay times for the clock signal.

摘要翻译： 光网络中的节点处的接收机接收光时钟信号和OTDM数据流。 检测器将时钟信号转换为电域。 可变延迟级将选择的延迟施加到电域中的时钟信号。 可以是电吸收调制器的非线性电光调制器在其光输入处接收OTDM数据流。 调制器的电气控制输入连接到可变延迟级的输出端。 电光调制器通过设置可变延迟级的延迟来输出选择的OTDM信道。 可变延迟级可以包括连接在一对微带延迟线之间的多个逻辑门，特别是与门。 门被控制以为时钟信号提供具有不同相应延迟时间的不同路径。