公开(公告)号：US20100316324A1

公开(公告)日：2010-12-16

申请号：US12781471

申请日：2010-05-17

申请人： Mark Webster ,  Russell Romano ,  Kalpendu Shastri

发明人： Mark Webster ,  Russell Romano ,  Kalpendu Shastri

IPC分类号： G02F1/035

CPC分类号： G02F1/2257 ,  G02F2203/20 ,  G02F2203/25

摘要： A silicon-based optical modulator exhibiting improved modulation efficiency and control of “chirp” (i.e., time-varying optical phase) is provided by separately biasing a selected, first region of the modulating device (e.g., the polysilicon region, defined as the common node). In particular, the common node is biased to shift the voltage swing of the silicon-based optical modulator into its accumulation region, which exhibits a larger change in phase as a function of applied voltage (larger OMA) and improved extinction ratio. The response in the accumulation region is also relatively linear, allowing for the chirp to be more easily controlled. The electrical modulation input signal (and its inverse) are applied as separate inputs to the second region (e.g., the SOI region) of each arm of the modulator.

摘要翻译： 通过分别偏置调制装置的选定的第一区域（例如，定义为共同的多晶硅区域）来提供显示出改善的调制效率和“啁啾”（即，时变光学相位）的控制的硅基光学调制器 节点）。 特别地，公共节点被偏置以将硅基光调制器的电压摆幅移动到其累积区域中，其随着施加电压（较大的OMA）和改善的消光比而呈现较大的相位变化。 积聚区域中的响应也是相对线性的，从而可以更容易地控制啁啾声。 电调制输入信号（及其反相）作为分离的输入施加到调制器的每个臂的第二区域（例如，SOI区域）。

公开(公告)号：US08520984B2

公开(公告)日：2013-08-27

申请号：US12781471

申请日：2010-05-17

申请人： Mark Webster ,  Russell Romano ,  Kalpendu Shastri

发明人： Mark Webster ,  Russell Romano ,  Kalpendu Shastri

IPC分类号： G02F1/035

CPC分类号： G02F1/2257 ,  G02F2203/20 ,  G02F2203/25

摘要： A silicon-based optical modulator exhibiting improved modulation efficiency and control of “chirp” (i.e., time-varying optical phase) is provided by separately biasing a selected, first region of the modulating device (e.g., the polysilicon region, defined as the common node). In particular, the common node is biased to shift the voltage swing of the silicon-based optical modulator into its accumulation region, which exhibits a larger change in phase as a function of applied voltage (larger OMA) and improved extinction ratio. The response in the accumulation region is also relatively linear, allowing for the chirp to be more easily controlled. The electrical modulation input signal (and its inverse) are applied as separate inputs to the second region (e.g., the SOI region) of each arm of the modulator.

摘要翻译： 通过分别偏置调制装置的选定的第一区域（例如，定义为共同的多晶硅区域）来提供显示出改善的调制效率和“啁啾”（即，时变光学相位）的控制的硅基光学调制器 节点）。 特别地，公共节点被偏置以将硅基光调制器的电压摆幅移动到其累积区域中，其随着施加电压（较大的OMA）和改善的消光比而呈现较大的相位变化。 积聚区域中的响应也是相对线性的，从而可以更容易地控制啁啾声。 电调制输入信号（及其反相）作为分离的输入施加到调制器的每个臂的第二区域（例如，SOI区域）。