公开(公告)号：US20060126993A1

公开(公告)日：2006-06-15

申请号：US11287114

申请日：2005-11-25

申请人： David Piede ,  Bipin Dama ,  Kalpendu Shastri ,  John Fangman ,  Harvey Wagner ,  Margaret Ghiron

发明人： David Piede ,  Bipin Dama ,  Kalpendu Shastri ,  John Fangman ,  Harvey Wagner ,  Margaret Ghiron

IPC分类号： G02B6/12

CPC分类号： H04B10/801 ,  G02B6/43

摘要： An SOI-based optical interconnection arrangement is provided that significantly reduces the size, complexity and power consumption requires of conventional high density electrical interconnections. In particular, a group of optical modulators and wavelength division multiplexers/demultiplexers are used in association with traditional electrical signal paths to “concentrate” a large number of the electrical-pinouts onto one optical waveguide (e.g., fiber). By utilizing a number of such SOI-based signal concentration structures, an optical backplane can be formed that couples all of these concentration structures through one optical substrate and then onto a separate number of output/receiving boards. Additionally, optical gain material may be embedded within the backplane element to further enhance the optical signal quality. The ability to integrate the electrical and optical components within a monolithic SOI-based structure provides for the significant reduction in the overall size of the connection arrangement and, further, reduces the power consumption by about an order of magnitude.

摘要翻译： 提供了一种基于SOI的光互连装置，其显着地减小了常规高密度电互连所需的尺寸，复杂性和功耗。 特别地，一组光调制器和波分复用器/解复用器与传统的电信号路径相关联地使用，以将大量的电插座“集中”到一个光波导（例如，光纤）上。 通过利用多个这样的基于SOI的信号浓度结构，可以形成光背板，其通过一个光学基板将所有这些浓度结构耦合到另一数目的输出/接收板上。 此外，光增益材料可以嵌入在背板元件内以进一步增强光信号质量。 将电和光学部件集成在基于单片SOI的结构内的能力提供了连接装置的整体尺寸的显着降低，并且进一步将功耗降低约一个数量级。

公开(公告)号：US20100316388A1

公开(公告)日：2010-12-16

申请号：US12813562

申请日：2010-06-11

申请人： Kalpendu Shastri ,  Bipin Dama ,  Vipulkumar Patel ,  Mark Webster

发明人： Kalpendu Shastri ,  Bipin Dama ,  Vipulkumar Patel ,  Mark Webster

IPC分类号： H04B10/00

CPC分类号： H04N7/22 ,  G09G5/006 ,  G09G2370/12 ,  G09G2370/18

摘要： An HDMI interconnect arrangement is presented that performs a pulse-amplitude modulation (PAM) conversion of the TMDS audio/video signals in order to simultaneously transmit all three channels over a single optical fiber. The set of three audio/video TMDS channels is applied as an input to a PAM-8 optical modulator, which functions to encode the set of three channels onto an optically-modulated output signal. The modulated optical signal is thereafter coupled into an optical fiber within an active HDMI cable and transmitted to an HDMI receiver (sink). The TMDS CLK signal is not included in this conversion into the optical domain, but remains as a separate electrical signal to be transmitted along a copper signal path within the active HDMI cable.

摘要翻译： 呈现HDMI互连布置，其执行TMDS音频/视频信号的脉冲幅度调制（PAM）转换，以便通过单根光纤同时传输所有三个通道。 三组音频/视频TMDS通道的组合被用作PAM-8光调制器的输入，PAM-8光调制器用于将三个通道的组合编码到光调制的输出信号上。 调制的光信号此后耦合到有源HDMI电缆中的光纤中，并被传输到HDMI接收器（接收器）。 TMDS CLK信号不包含在该转换到光学域中，而是作为单独的电信号保持在有源HDMI电缆内的铜信号路径上传输。

公开(公告)号：US08340529B2

公开(公告)日：2012-12-25

申请号：US12813562

申请日：2010-06-11

申请人： Kalpendu Shastri ,  Bipin Dama ,  Vipulkumar Patel ,  Mark Webster

发明人： Kalpendu Shastri ,  Bipin Dama ,  Vipulkumar Patel ,  Mark Webster

IPC分类号： H04B10/12

CPC分类号： H04N7/22 ,  G09G5/006 ,  G09G2370/12 ,  G09G2370/18

摘要： An HDMI interconnect arrangement is presented that performs a pulse-amplitude modulation (PAM) conversion of the TMDS audio/video signals in order to simultaneously transmit all three channels over a single optical fiber. The set of three audio/video TMDS channels is applied as an input to a PAM-8 optical modulator, which functions to encode the set of three channels onto an optically-modulated output signal. The modulated optical signal is thereafter coupled into an optical fiber within an active HDMI cable and transmitted to an HDMI receiver (sink). The TMDS CLK signal is not included in this conversion into the optical domain, but remains as a separate electrical signal to be transmitted along a copper signal path within the active HDMI cable.

摘要翻译： 呈现HDMI互连布置，其执行TMDS音频/视频信号的脉冲幅度调制（PAM）转换，以便通过单根光纤同时传输所有三个通道。 三组音频/视频TMDS通道的组合被用作PAM-8光调制器的输入，PAM-8光调制器用于将三个通道的组合编码到光调制的输出信号上。 调制的光信号此后耦合到有源HDMI电缆中的光纤中，并被传输到HDMI接收器（接收器）。 TMDS CLK信号不包含在该转换到光学域中，而是作为单独的电信号保持在有源HDMI电缆内的铜信号路径上传输。

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）。

公开(公告)号：US20060245761A1

公开(公告)日：2006-11-02

申请号：US11413675

申请日：2006-04-27

申请人： Kalpendu Shastri ,  Bipin Dama ,  David Piede

发明人： Kalpendu Shastri ,  Bipin Dama ,  David Piede

IPC分类号： H04B10/12

CPC分类号： H04L25/0228 ,  H04B10/66 ,  H04L25/025 ,  H04L25/03057

摘要： An electronic dispersion compensation (EDC) arrangement for a multi-channel optical receive utilizes a time division technique to “share” a common adaptive algorithm block between a plurality of N separate channels. The algorithm block embodies a specific algorithm associated with correcting/updating tap weights for the delay lines forming the equalizing elements, and a time slot assignment element is used in conjunction with the algorithm block to control the access of the various channels to the algorithm block. In situations where certain channels experience a greater degree of dispersion than others, the time slot assignment element may be configured to allot a greater number of time slots to the affected channels.

公开(公告)号：US08929689B2

公开(公告)日：2015-01-06

申请号：US13413883

申请日：2012-03-07

申请人： Peter C. Metz ,  Bipin Dama ,  Kalpendu Shastri

发明人： Peter C. Metz ,  Bipin Dama ,  Kalpendu Shastri

IPC分类号： G02F1/035 ,  G02B6/12 ,  H04B10/50 ,  G02F1/225 ,  G02F1/01 ,  H04B10/516

CPC分类号： G02F1/011 ,  G02F1/225 ,  G02F2001/0113 ,  H04B10/5051 ,  H04B10/5053 ,  H04B10/516

摘要： An optical modulator is configured to include multiple modulating sections formed along each arm and create a unary-encoded optical output signal by driving the number of sections required to represent the data value being transmitted (e.g., three sections driven to represent the data value “3”, four sections driven to represent the data value “4”). An auxiliary modulating section, isolated from the optical signal path, is included for creating a path for current flow in situations where only an odd number of modulating sections are required to represent the data. The activation of the auxiliary modulation section minimizes the current imbalance that would otherwise be present along a common node of the arrangement.

摘要翻译： 光调制器被配置为包括沿着每个臂形成的多个调制部分，并且通过驱动表示所传送的数据值所需的部分数量（例如，驱动以表示数据值“3”的三个部分）来创建一次编码的光输出信号 “，四个部分被驱动以表示数据值”4“）。 包括与光信号路径隔离的辅助调制部分，用于在只需要奇数个调制部分来表示数据的情况下创建用于电流的路径。 辅助调制部分的激活使得沿着该装置的公共节点将存在的电流不平衡最小化。

公开(公告)号：US20120230626A1

公开(公告)日：2012-09-13

申请号：US13413883

申请日：2012-03-07

申请人： Peter C. Metz ,  Bipin Dama ,  Kalpendu Shastri

发明人： Peter C. Metz ,  Bipin Dama ,  Kalpendu Shastri

IPC分类号： G02F1/035

CPC分类号： G02F1/011 ,  G02F1/225 ,  G02F2001/0113 ,  H04B10/5051 ,  H04B10/5053 ,  H04B10/516

摘要： An optical modulator is configured to include multiple modulating sections formed along each arm and create a unary-encoded optical output signal by driving the number of sections required to represent the data value being transmitted (e.g., three sections driven to represent the data value “3”, four sections driven to represent the data value “4”). An auxiliary modulating section, isolated from the optical signal path, is included for creating a path for current flow in situations where only an odd number of modulating sections are required to represent the data. The activation of the auxiliary modulation section minimizes the current imbalance that would otherwise be present along a common node of the arrangement.

摘要翻译： 光调制器被配置为包括沿着每个臂形成的多个调制部分，并且通过驱动表示所传送的数据值所需的部分数量（例如，驱动以表示数据值“3”的三个部分）来创建一次编码的光输出信号 “，四个部分被驱动以表示数据值”4“）。 包括与光信号路径隔离的辅助调制部分，用于在只需要奇数个调制部分来表示数据的情况下创建用于电流的路径。 辅助调制部分的激活使得沿着该装置的公共节点将存在的电流不平衡最小化。

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：US20080095486A1

公开(公告)日：2008-04-24

申请号：US11975050

申请日：2007-10-17

申请人： Kalpendu Shastri ,  Bipin Dama

发明人： Kalpendu Shastri ,  Bipin Dama

IPC分类号： G02F1/035

CPC分类号： G02F1/2255 ,  G02F1/0123 ,  H04B10/541

摘要： An optical modulator is formed to include a plurality of separate electrodes disposed along one arm, the electrodes having different lengths and driven with different signals to provide for multi-level signaling (e.g., PAM-4 signaling). By using separate drivers to energize the different sections, the number of sections energized at a given point in time will define the net phase shift introduced to the optical signal. The total length of the combined modulator sections is associated with a π phase shift (180°). Each section is driven by either a digital “one” or “zero”, so as to create the multi-level modulation. An essentially equal change in power between adjacent transmitted symbols is accomplished by properly adjusting the lengths of each individual section.

摘要翻译： 光学调制器被形成为包括沿着一个臂布置的多个单独的电极，电极具有不同的长度并用不同的信号驱动以提供多级信号（例如，PAM-4信令）。 通过使用单独的驱动器来激励不同的部分，在给定时间点通电的部分的数量将定义引入光信号的净相移。 组合调制器部分的总长度与pi相移（180°）相关联。 每个部分由数字“一”或“零”驱动，以创建多级调制。 通过适当调整每个单独部分的长度来实现相邻传输符号之间的功率基本上相等的变化。

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。