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61. 发明申请

US20060083144A1 Optical detector configuration and utilization as feedback control in monolithic integrated optic and electronic arrangements 有权
标题翻译：光学检测器配置和利用作为单片集成光学和电子布置中的反馈控制
公开(公告)号：US20060083144A1
公开(公告)日：2006-04-20
申请号：US11253456
申请日：2005-10-19
申请人： David Piede , Kalpendu Shastri , Robert Montgomery , Prakash Gothoskar , Vipulkumar Patel , Mary Nadeau
发明人： David Piede , Kalpendu Shastri , Robert Montgomery , Prakash Gothoskar , Vipulkumar Patel , Mary Nadeau
IPC分类号： G11B7/00
CPC分类号： G02F1/025 , G02B6/3586 , G02B6/3588 , G02B6/3594 , G02F1/0123 , G02F2201/58 , G02F2203/21
摘要： An improvement in the reliability and lifetime of SOI-based opto-electronic systems is provided through the use of a monolithic opto-electronic feedback arrangement that monitors one or more optical signals within the opto-electronic system and provides an electrical feedback signal to adjust the operation parameters of selected optical devices. For example, input signal coupling orientation may be controlled. Alternatively, the operation of an optical modulator, switch, filter, or attenuator may be under closed-loop feedback control by virtue of the inventive monolithic feedback arrangement. The feedback arrangement may also include a calibration/look-up table, coupled to the control electronics, to provide the baseline signals used to analyze the system's performance.
摘要翻译：通过使用单片光电反馈装置来提供基于SOI的光电系统的可靠性和寿命的改进，该装置监测光电系统内的一个或多个光信号，并提供电反馈信号以调整所选光器件的运行参数。例如，可以控制输入信号耦合取向。或者，光学调制器，开关，滤波器或衰减器的操作可以通过本发明的单片反馈装置进行闭环反馈控制。反馈布置还可以包括耦合到控制电子器件的校准/查找表，以提供用于分析系统性能的基线信号。

62. 发明授权

US07657130B2 Silicon-based optical modulator for analog applications 有权
标题翻译：用于模拟应用的硅基光调制器
公开(公告)号：US07657130B2
公开(公告)日：2010-02-02
申请号：US12287366
申请日：2008-10-08
申请人： Kalpendu Shastri , Prakash Gothoskar , Vipulkumar Patel , David Piede , Mark Webster
发明人： Kalpendu Shastri , Prakash Gothoskar , Vipulkumar Patel , David Piede , Mark Webster
IPC分类号： G02F1/035 , G02F1/01 , G02B6/12
CPC分类号： G02F1/0121 , G02F1/2255 , G02F1/2257 , G02F2001/0152
摘要： A silicon-insulator-silicon capacitive (SISCAP) optical modulator is configured to provide analog operation for applications which previously required the use of relatively large, power-consuming and expensive lithium niobate devices. An MZI-based SISCAP modulator (preferably a balanced arrangement with a SISCAP device on each arm) is responsive to an incoming high frequency electrical signal and is biased in a region where the capacitance of the device is essentially constant and the transform function of the MZI is linear.
摘要翻译：硅 - 绝缘体 - 硅电容（SISCAP）光调制器被配置为为先前需要使用相对较大，耗电和昂贵的铌酸锂器件的应用提供模拟操作。基于MZI的SISCAP调制器（优选地，在每个臂上具有SISCAP器件的平衡布置）响应于输入的高频电信号，并且被偏置在器件的电容基本上恒定的区域中，并且MZI的变换函数是线性的

63. 发明申请

US20070292075A1 Silicon modulator offset tuning arrangement 有权
标题翻译：硅调制器偏移调谐布置
公开(公告)号：US20070292075A1
公开(公告)日：2007-12-20
申请号：US11810591
申请日：2007-06-06
申请人： Robert Keith Montgomery , Margaret Ghiron , Prakash Gothoskar , Paulius Mindaugas Mosinskis , Vipulkumar Patel , Kalpendu Shastri , Mark Webster
发明人： Robert Keith Montgomery , Margaret Ghiron , Prakash Gothoskar , Paulius Mindaugas Mosinskis , Vipulkumar Patel , Kalpendu Shastri , Mark Webster
IPC分类号： G02B6/12
CPC分类号： G02F1/025 , G02F1/0147 , G02F1/225 , G02F2201/126
摘要： A silicon-based optical modulator structure includes one or more separate localized heating elements for changing the refractive index of an associated portion of the structure and thereby providing corrective adjustments to address unwanted variations in device performance. Heating is provided by thermo-optic devices such as, for example, silicon-based resistors, silicide resistors, forward-biased PN junctions, and the like, where any of these structures may easily be incorporated with a silicon-based optical modulator. The application of a DC voltage to any of these structures will generate heat, which then transfers into the waveguiding area. The increase in local temperature of the waveguiding area will, in turn, increase the refractive index of the waveguiding in the area. Control of the applied DC voltage results in controlling the refractive index
摘要翻译：基于硅的光学调制器结构包括一个或多个单独的局部加热元件，用于改变结构的相关部分的折射率，从而提供校正调整以解决器件性能的不期望的变化。加热由诸如硅基电阻器，硅化物电阻器，正向偏置PN结等的热光器件提供，其中这些结构中的任何一种可以容易地与硅基光学调制器结合。对这些结构中的任何一个施加直流电压将产生热量，然后传递到波导区域。波导区域的局部温度的增加又将增加该区域中波导的折射率。施加的直流电压的控制导致控制折射率

64. 发明授权

US08520984B2 Silicon-based optical modulator with improved efficiency and chirp control 有权
标题翻译：硅基光学调制器，提高效率和啁啾控制
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）。

65. 发明申请

US20100316324A1 Silicon-Based Optical Modulator With Improved Efficiency And Chirp Control 有权
标题翻译：基于硅的光学调制器，提高了效率和啁啾控制
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）。

66. 发明授权

US08938142B2 Silicon-based opto-electronic integrated circuit with reduced polarization dependent loss 有权
标题翻译：硅基光电集成电路具有降低的偏振相关损耗
公开(公告)号：US08938142B2
公开(公告)日：2015-01-20
申请号：US13324251
申请日：2011-12-13
申请人： Kalpendu Shastri , Raymond Nering
发明人： Kalpendu Shastri , Raymond Nering
IPC分类号： G02B6/30 , G02B6/42
CPC分类号： G02B6/4246 , G02B6/305 , G02B6/42 , G02B6/421 , G02B6/4213
摘要： A silicon-based opto-electronic circuit is formed to exhibit reduced polarization-dependent loss by strategically placing the photodetecting device as close as possible to the entry point of the optical signal into the opto-electronic circuit arrangement. While the incoming optical signal will include both TE and TM modes, by minimizing the length of the optical waveguide path along which the signal must propagate before reaching a photodetector, the attenuation associated with TM mode signal will be negligible.
摘要翻译：形成硅基光电子电路，通过将光电检测器件尽可能靠近光信号的入射点策略地放置在光电子电路装置中，显示出减小的偏振相关损耗。当入射光信号将包括TE和TM模式时，通过最小化信号在到达光电检测器之前必须传播的光波导路径的长度，与TM模式信号相关联的衰减将是可忽略的。

67. 发明申请

US20110222813A1 Optical Modulators With Controllable Chirp 有权
标题翻译：具有可控啁啾的光学调制器
公开(公告)号：US20110222813A1
公开(公告)日：2011-09-15
申请号：US13032899
申请日：2011-02-23
申请人： Mark Webster , Kalpendu Shastri
发明人： Mark Webster , Kalpendu Shastri
IPC分类号： G02F1/035
CPC分类号： G02F1/2257 , G02F1/025 , G02F2203/20 , G02F2203/25 , G02F2203/255
摘要： A semiconductor-based optical modulator is presented that includes a separate phase control section to adjust the amount of chirp present in the modulated output signal. At least one section is added to the modulator configuration and driven to create a pure “phase” signal that will is added to the output signal and modify the eiφ term inherent in the modulation function. The phase modulation control section may be located within the modulator itself (with one segment on each arm, driven by the same input signal), or may be disposed “outside” of the modulator on either the input waveguiding section or the output waveguiding section. The phase control section may be formed to comprise multiple segments (of different lengths), with the overall phase added to the propagating signal controlled by selecting the different segments to be energized to impart a phase delay to a signal propagating through the energized section(s).
摘要翻译：提出了一种基于半导体的光调制器，其包括单独的相位控制部分，用于调节调制输出信号中存在的线性调频音量。至少一个部分被添加到调制器配置并被驱动以产生将被添加到输出信号并且修改ei＆phgr的纯“相”信号。术语固有的调制功能。相位调制控制部分可以位于调制器本身内（每个臂上的一个段由相同的输入信号驱动），或者可以设置在输入波导部分或输出波导部分上的调制器的“外部”。相位控制部分可以形成为包括多个段（不同长度），其中通过选择不同的被激励的段来控制传播信号的总相位，以向通过通电部分传播的信号施加相位延迟）。

68. 发明授权

US07567094B2 Tri-stated driver for bandwidth-limited load 有权
标题翻译：三态驱动器，用于带宽限制负载
公开(公告)号：US07567094B2
公开(公告)日：2009-07-28
申请号：US11807150
申请日：2007-05-25
申请人： Kalpendu Shastri
发明人： Kalpendu Shastri
IPC分类号： H03K19/00 , H03K19/02
CPC分类号： H03K19/09429
摘要： A CMOS driver circuit is configured to provide a tri-state condition after a predetermined number of like-valued data bits have been transmitted, reducing the presence of intersymbol interference (ISI) along a transmission channel. In situations where the transmission channel is bandwidth-limited, the use of the tri-stating technique allows for the complete transition to the supply rails during the given bit period.
摘要翻译： CMOS驱动器电路被配置为在已经发送了预定数量的类似值的数据位之后提供三态条件，从而减少了沿着传输信道的符号间干扰（ISI）的存在。在传输信道受带宽限制的情况下，三态技术的使用允许在给定位周期期间完全转换到电源轨。

69. 发明申请

US20080007295A1 Tri-stated driver for bandwidth-limited load 有权
标题翻译：三态驱动器，用于带宽限制负载
公开(公告)号：US20080007295A1
公开(公告)日：2008-01-10
申请号：US11807150
申请日：2007-05-25
申请人： Kalpendu Shastri
发明人： Kalpendu Shastri
IPC分类号： H03K19/096
CPC分类号： H03K19/09429
摘要： A CMOS driver circuit is configured to provide a tri-state condition after a predetermined number of like-valued data bits have been transmitted, reducing the presence of intersymbol interference (ISI) along a transmission channel. In situations where the transmission channel is bandwidth-limited, the use of the tri-stating technique allows for the complete transition to the supply rails during the given bit period.
摘要翻译： CMOS驱动器电路被配置为在已经发送了预定数量的类似值的数据位之后提供三态条件，从而减少了沿着传输信道的符号间干扰（ISI）的存在。在传输信道受带宽限制的情况下，三态技术的使用允许在给定位周期期间完全转换到电源轨。

70. 发明授权

US08620115B2 Optical modulators with controllable chirp 有权
标题翻译：具有可控啁啾的光学调制器
公开(公告)号：US08620115B2
公开(公告)日：2013-12-31
申请号：US13032899
申请日：2011-02-23
申请人： Mark Webster , Kalpendu Shastri
发明人： Mark Webster , Kalpendu Shastri
IPC分类号： G02F1/035 , G02B6/26 , G02B6/42
CPC分类号： G02F1/2257 , G02F1/025 , G02F2203/20 , G02F2203/25 , G02F2203/255
摘要： A semiconductor-based optical modulator is presented that includes a separate phase control section to adjust the amount of chirp present in the modulated output signal. At least one section is added to the modulator configuration and driven to create a pure “phase” signal that will is added to the output signal and modify the eiφ term inherent in the modulation function. The phase modulation control section may be located within the modulator itself, or may be disposed “outside” of the modulator on either the input waveguiding section or the output waveguiding section. The phase control section may be formed to comprise multiple segments (of different lengths), with the overall phase added to the propagating signal controlled by selecting the different segments to be energized to impart a phase delay to a signal propagating through the energized section(s).
摘要翻译：提出了一种基于半导体的光调制器，其包括单独的相位控制部分，用于调节调制输出信号中存在的线性调频音量。至少一个部分被添加到调制器配置中并被驱动以产生将被添加到输出信号并且修改调制功能中固有的eiphi项的纯“相”信号。相位调制控制部分可以位于调制器本身内，或者可以设置在输入波导部分或输出波导部分上的调制器的“外部”。相位控制部分可以被形成为包括多个段（不同长度），其中通过选择不同的被激励的段来控制传播信号的总相位，以对通过通电部分传播的信号施加相位延迟）。

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