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41. 发明授权

US4972427A Talbot cavity diode laser with uniform single-mode output 失效
标题翻译： Talbot腔二极管激光器具有均匀的单模输出
公开(公告)号：US4972427A
公开(公告)日：1990-11-20
申请号：US407206
申请日：1989-09-14
申请人： William Streifer , Robert G. Waarts , David F. Welch , Donald R. Scifres
发明人： William Streifer , Robert G. Waarts , David F. Welch , Donald R. Scifres
IPC分类号： G02B6/28 , H01S5/14 , H01S5/40
CPC分类号： H01S5/148 , H01S5/4062 , G02B6/2813
摘要： A diode laser of the type having an array of laser emitters in a Talbot cavity in which edge reflectors are added to enhance feedback to edgemost emitters. In one embodiment, a transparent slab with reflectively coated sides is present between the phase plane of the emitted light and the Talbot cavity reflector. The phase plne is defined by a lenticular array placed a focal length in front of the laser emitters. In another embodiment, the Talbot cavity reflector has an increased reflectivity toward its edges. In all embodiments the Talbot cavity reflector is preferably spaced a distance na.sup.2 /.lambda. from the phase plane, where n is a positive integer, a is separation between adjacent emitters and .lambda. is the wavelength of emitted light. An integrated embodiment has the array and cavity reflectors defined ina single semiconductor body divided into active and ransparent region. Side mirrors are etched into the semiconductor body. The laser array may also be extended to two dimensions with individual lasers or laser bars fiber coupled to a lens surface, with an edge reflector and Talbot cavity reflector coated on an otherwise transparent slab.
摘要翻译：在Talbot腔中具有激光发射器阵列的类型的二极管激光器，其中添加边缘反射器以增强对edgemost发射体的反馈。在一个实施例中，在发射光的相平面和Talbot腔反射器之间存在具有反射涂覆侧面的透明板。相位斑点由在激光发射器前面放置焦距的透镜阵列限定。在另一个实施例中，Talbot腔反射器对其边缘具有增加的反射率。在所有实施例中，Talbot空腔反射器优选与相平面间隔距离为na2 /λ，其中n为正整数，a为相邻发射体之间的间隔，λ为发射光的波长。集成实施例具有被划分为活性和透明区域的单个半导体主体中限定的阵列和空腔反射器。侧镜被蚀刻到半导体本体中。激光器阵列也可以扩展到二维，其中单独的激光器或激光棒纤维耦合到透镜表面，边缘反射器和Talbot腔体反射器涂覆在另外透明的平板上。

42. 发明公开

US20240283558A1 Subcarrier Based Data Center Network Architecture 审中-公开
公开(公告)号：US20240283558A1
公开(公告)日：2024-08-22
申请号：US18516909
申请日：2023-11-21
申请人： Stuart Elby , David F. Welch
发明人： Stuart Elby , David F. Welch
IPC分类号： H04J14/02 , H04B10/50 , H04B10/61
CPC分类号： H04J14/0298 , H04B10/506 , H04B10/61
摘要： Methods, systems, and apparatus, including computer programs encoded on computer storage media, for generating, transmitting, directing, receiving, and processing optical subcarriers. In some implementations, a system includes a Tier 1 switch that supplies a plurality of data channels; a transmitter that receives the plurality of data channels, the transmitter including an optical modulator that supplies a plurality of optical subcarriers based on the plurality of data channels; an optical platform that receives the plurality of optical subcarriers, the optical platform having a plurality of outputs, each of which supplying at least one of the plurality of subcarriers; a plurality of receivers, each receiving one or more of the plurality of optical subcarriers and supplying one or more of the plurality of data channels; and a plurality of servers, each of which receiving one or more of the plurality of data channels.

43. 发明授权

US09372306B1 Method of achieving acceptable performance in and fabrication of a monolithic photonic integrated circuit (PIC) with integrated arrays of laser sources and modulators employing an extended identical active layer (EIAL) 有权
标题翻译：在具有集成的激光源阵列和使用延伸的相同有源层（EIAL）的调制器的单片光子集成电路（PIC）中实现可接受的性能和制造方法，
公开(公告)号：US09372306B1
公开(公告)日：2016-06-21
申请号：US11045827
申请日：2005-01-27
申请人： Radhakrishnan L. Nagarajan , Fred A. Kish, Jr. , Masaki Kato , Charles H. Joyner , David F. Welch , Randal A. Salvatore , Richard P. Schneider , Mehrdad Ziari , Damien Jean Henri Lambert , Sheila K. Hurtt , Andrew G. Dentai , Atul Mathur , Vincent G. Dominic
发明人： Radhakrishnan L. Nagarajan , Fred A. Kish, Jr. , Masaki Kato , Charles H. Joyner , David F. Welch , Randal A. Salvatore , Richard P. Schneider , Mehrdad Ziari , Damien Jean Henri Lambert , Sheila K. Hurtt , Andrew G. Dentai , Atul Mathur , Vincent G. Dominic
IPC分类号： G02B6/12
CPC分类号： G02B6/12009 , G02B6/00 , G02B6/02204 , G02B6/12004 , G02B6/12019 , G02B6/12023 , G02B6/12026 , G02B6/12028 , G02B6/12033 , G02B6/124 , G02B6/4215 , G02F1/0121 , G02F1/01725 , G02F1/025 , G02F2001/0175 , G02F2001/01758 , G02F2203/05 , H01S5/0085 , H01S5/024 , H01S5/02415 , H01S5/02453 , H01S5/02461 , H01S5/02476 , H01S5/026 , H01S5/0261 , H01S5/0264 , H01S5/0265 , H01S5/0268 , H01S5/0425 , H01S5/0612 , H01S5/06256 , H01S5/06258 , H01S5/0683 , H01S5/0687 , H01S5/12 , H01S5/1228 , H01S5/2077 , H01S5/22 , H01S5/2214 , H01S5/2224 , H01S5/227 , H01S5/2272 , H01S5/2275 , H01S5/3408 , H01S5/34306 , H01S5/4025 , H01S5/4031 , H01S5/4087 , H01S5/50 , H04B10/506 , H04B10/572 , H04J14/02
摘要： A method provides acceptable performance from a semiconductor transmitter photonic integrated circuit (TxPIC) that contains a plurality of modulated sources each comprising a laser source and an external modulator where each laser source provides a different emission wavelength and each modulated source forms a separate signal channel, comprising the steps of providing at least some of the signal channels with an extended identical active layer (EIAL) so that the modulated sources each have an identical active region wavelength and detuning the laser emission wavelength in each laser source within the EIAL from the laser active region wavelength.
摘要翻译：一种方法从包含多个调制源的半导体发射器光子集成电路（TxPIC）提供可接受的性能，每个调制源包括激光源和外部调制器，其中每个激光源提供不同的发射波长，并且每个调制的源形成单独的信号通道，包括以下步骤：向扩展的相同有源层（EIAL）提供信号通道的至少一些，使得调制源各自具有相同的有源区波长并使来自激光器活动的EIAL内的每个激光源中的激光发射波长失谐区域波长。

44. 发明授权

US08768177B2 Wavelength division multiplexed optical communication system having variable channel spacings 有权
标题翻译：具有可变通道间隔的波分复用光通信系统
公开(公告)号：US08768177B2
公开(公告)日：2014-07-01
申请号：US12897784
申请日：2010-10-05
申请人： Kuang-Tsan Wu , John D. McNicol , David F. Welch , Stephen G. Grubb , Pierre Mertz
发明人： Kuang-Tsan Wu , John D. McNicol , David F. Welch , Stephen G. Grubb , Pierre Mertz
IPC分类号： H04B10/58
CPC分类号： H04J14/06 , H04J14/026 , H04L1/007
摘要： Consistent with the present disclosure, data, in digital form, is received by a transmit nodes of an optical communication, and converted to analog signal by a digital-to-analog converter (DAC) to drive a modulator. The modulator, in turn, modulates light at one of a plurality of wavelengths in accordance with the received data. The modulated light is then transmitted over an optical communication path to a receive node. At the receive node, the modulated optical signal, as well as other modulated optical signals are supplied to a photodetector circuit, which receives additional light at one of the optical signal wavelengths from a local oscillator laser. An analog-to-digital converter (ADC) is provided in the receive node to convert the electrical signals output from the photodetector into digital form. The output from the ADC is then filtered in the electrical domain, such that optical demultiplexing of individual channels is unnecessary.
摘要翻译：与本公开一致，数字形式的数据由光通信的发射节点接收，并由数模转换器（DAC）转换为模拟信号以驱动调制器。调制器又根据接收的数据调制多个波长中的一个波长的光。然后将调制的光通过光通信路径传输到接收节点。在接收节点处，调制的光信号以及其它调制的光信号被提供给光电检测器电路，光电检测器电路从本地振荡器激光器接收来自光信号波长之一的附加光。在接收节点中提供模数转换器（ADC），以将从光电检测器输出的电信号转换为数字形式。然后在电域中对来自ADC的输出进行滤波，使得各个信道的光解复用是不必要的。

45. 发明申请

US20120251119A1 Multiplexer and Modulation Arrangements for Multi-Carrier Optical Modems 有权
标题翻译：多载波调制解调器的多路复用器和调制方案
公开(公告)号：US20120251119A1
公开(公告)日：2012-10-04
申请号：US13078888
申请日：2011-04-01
申请人： John D. McNicol , Matthew L. Mitchell , David F. Welch
发明人： John D. McNicol , Matthew L. Mitchell , David F. Welch
IPC分类号： H04J14/02
CPC分类号： H04J14/02 , H04J14/0256 , H04J14/026 , H04J14/06
摘要： Consistent with the present disclosure, data, in digital form, is received by a transmit node of an optical communication, and converted to analog signal by a digital-to-analog converter (DAC) to drive a modulator. The modulator, in turn, modulates light at one of a plurality of wavelengths in accordance with the received data forming a plurality of corresponding carriers. The plurality of carriers are then optically combined with a fixed spacing combiner to form a superchannel of a fixed capacity. Accordingly, the number of carriers are selected according to a modulation format and symbol rate to realize the fixed capacity, for example. The superchannel is then transmitted over an optical communication path to a receive node. At the receive node, the superchannel is optically demultiplexed from a plurality of other superchannels. The plurality of carriers are then supplied to a photodetector circuit, which receives additional light at one of the optical signal carrier wavelengths from a local oscillator laser. An analog-to-digital converter (ADC) is provided in the receive node to convert the electrical signals output from the photodetector into digital form. The output from the ADC is then filtered in the electrical domain, such that optical demultiplexing of the carriers is unnecessary.
摘要翻译：根据本公开，数字形式的数据由光通信的发送节点接收，并由数模转换器（DAC）转换成模拟信号以驱动调制器。调制器又根据形成多个相应载波的接收数据调制多个波长中的一个波长的光。然后将多个载波与固定间隔组合器光学组合以形成固定容量的超级通道。因此，例如，根据调制格式和符号率来选择载波的数量以实现固定容量。然后，超信道通过光通信路径传输到接收节点。在接收节点处，超级信道从多个其他超级信道被光解复用。然后将多个载波提供给光电检测器电路，该电路从本地振荡器激光器接收来自光信号载波波长的其中一个附加光。在接收节点中提供模数转换器（ADC），以将从光电检测器输出的电信号转换为数字形式。然后在电域中对ADC的输出进行滤波，使得载波的光解复用是不必要的。

46. 发明授权

US08111685B2 Communication network with co-routed multi-channel traffic 有权
标题翻译：具有协同路由多通道通信的通信网络
公开(公告)号：US08111685B2
公开(公告)日：2012-02-07
申请号：US11851349
申请日：2007-09-06
申请人： Drew D. Perkins , David F. Welch , Ting-Kuang Chiang , Edward E. Sprague , Parthiban Kandappan , Stephen G. Grubb , Prasad Paranjape
发明人： Drew D. Perkins , David F. Welch , Ting-Kuang Chiang , Edward E. Sprague , Parthiban Kandappan , Stephen G. Grubb , Prasad Paranjape
IPC分类号： H04L12/28
CPC分类号： H04J14/02
摘要： Embodiments of the present invention route a wavelength division multiplexed signal across multiple communication paths using skew characteristics of at least some of the communication paths. The network is a wavelength division multiplexed optical transport network. The plurality of communication paths involves different signal and path attributes such as a plurality of carrier wavelengths, optical carrier groups, physical communication paths (different nodes, different fibers along a same path, or any combination of the foregoing), or any other differentiating factors between two paths.
摘要翻译：本发明的实施例使用至少一些通信路径的偏斜特性来跨越多个通信路径来路由波分复用信号。该网络是波分复用光传输网络。多个通信路径涉及不同的信号和路径属性，例如多个载波波长，光载波组，物理通信路径（不同节点，沿着相同路径的不同光纤，或前述的任何组合）或任何其它微分因素两条路径之间。

47. 发明申请

US20110249936A1 TRANSMITTER PHOTONIC INTEGRATED CIRCUIT (TxPIC) CHIP 有权
标题翻译：发射机光电集成电路（TxPIC）芯片
公开(公告)号：US20110249936A1
公开(公告)日：2011-10-13
申请号：US13022614
申请日：2011-02-07
申请人： David F. Welch , Vincent G. Dominic , Fred A. Kish, JR. , Mark J. Missey , Radhakrishnan L. Nagarajan , Atul Mathur , Frank H. Peters , Robert B. Taylor , Matthew L. Mitchell , Alan C. Nilsson , Stephen G. Grubb , Richard P. Schneider , Charles H. Joyner , Ting-Kuang Chiang , Marco E. Sosa
发明人： David F. Welch , Vincent G. Dominic , Fred A. Kish, JR. , Mark J. Missey , Radhakrishnan L. Nagarajan , Atul Mathur , Frank H. Peters , Robert B. Taylor , Matthew L. Mitchell , Alan C. Nilsson , Stephen G. Grubb , Richard P. Schneider , Charles H. Joyner , Ting-Kuang Chiang , Marco E. Sosa
IPC分类号： G02B6/42 , B05D5/06
CPC分类号： G02B6/12011 , B82Y20/00 , G01R31/31728 , G01R31/318511 , G02B6/12004 , G02B6/12007 , G02B6/12019 , G02B6/12021 , G02B6/12023 , G02B6/12026 , G02B6/12028 , G02B6/12033 , G02B6/131 , G02B6/136 , G02B6/4204 , G02F1/01725 , G02F2001/0175 , G02F2001/01758 , G02F2203/69 , H01L31/125 , H01S5/0014 , H01S5/0085 , H01S5/02248 , H01S5/026 , H01S5/0262 , H01S5/0264 , H01S5/0265 , H01S5/0268 , H01S5/06256 , H01S5/06258 , H01S5/0683 , H01S5/06832 , H01S5/12 , H01S5/1228 , H01S5/2077 , H01S5/22 , H01S5/3408 , H01S5/4031 , H01S5/4087 , H01S5/50 , H04B10/2914 , H04B10/50 , H04J14/02 , H04J14/0246 , H04J14/025 , H04J14/0258 , H04J14/0265 , H04J14/0276 , H04J14/0282
摘要： A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to received all the signal outputs from the modulated sources and provide a combined output signal on an output waveguide from the chip. The modulated sources, combiner and output waveguide are all integrated on the same chip.
摘要翻译：一种包括调制源阵列的光子集成电路（PIC）芯片，每个调制源提供在不同于其它调制源的信道波长的信道波长处的调制信号输出，以及具有光耦合到接收到的所有信号输出的输入的波长选择性组合器并从芯片提供输出波导上的组合输出信号。调制源，组合器和输出波导均集成在同一芯片上。

48. 发明申请

US20110243556A1 TRANSCEIVER PHTONIC INTEGRATED CIRCUIT 有权
标题翻译：收发器波导集成电路
公开(公告)号：US20110243556A1
公开(公告)日：2011-10-06
申请号：US12753833
申请日：2010-04-02
申请人： Radhakrishnan L. Nagarajan , Masaki Kato , Fred A. Kish, JR. , David F. Welch , Charles H. Joyner
发明人： Radhakrishnan L. Nagarajan , Masaki Kato , Fred A. Kish, JR. , David F. Welch , Charles H. Joyner
IPC分类号： H04J14/00
CPC分类号： H04J14/02 , H04B10/40 , H04J14/06
摘要： The present invention provides for a transceiver comprising a transmitter portion and a receiver portion. The transmitter portion includes a laser, the laser providing an optical signal having one of a plurality of wavelengths. The optical signal from the laser is modulated to create a first wavelength-division multiplexed signal at an output of the transceiver. The optical signal from the laser is also used by a demultiplexer to demultiplexer a second wavelength-division multiplexed signal at an input of the transceiver. The use of the optical signal from the laser in both modulation and demodulation of wavelength-division multiplexed signals results in a transceiver having fewer discrete components resulting in a compact design and reduced costs.
摘要翻译：本发明提供一种收发器，包括发射机部分和接收机部分。发射机部分包括激光器，激光器提供具有多个波长中的一个的光信号。来自激光器的光信号被调制以在收发器的输出处产生第一波分复用信号。来自激光器的光信号也被解复用器使用，以在收发器的输入端解复用第二波分复用信号。在波分复用信号的调制和解调中使用来自激光器的光信号导致具有较少分立组件的收发器，导致紧凑的设计并降低了成本。

49. 发明授权

US07773837B2 Monolithic transmitter photonic integrated circuit (TXPIC) with a transversely disposed output 有权
标题翻译：单片发射器光子集成电路（TXPIC）具有横向布置的输出
公开(公告)号：US07773837B2
公开(公告)日：2010-08-10
申请号：US12240543
申请日：2008-09-29
申请人： David F. Welch , Vincent G. Dominic , Fred A. Kish, Jr. , Mark J. Missey , Radhakrishnan L. Nagarajan , Atul Mathur , Frank H. Peters , Robert B. Taylor , Matthew L. Mitchell , Alan C. Nilsson , Stephen G. Grubb , Richard P. Schneider , Charles H. Joyner , Jonas Webjorn , Drew D. Perkins
发明人： David F. Welch , Vincent G. Dominic , Fred A. Kish, Jr. , Mark J. Missey , Radhakrishnan L. Nagarajan , Atul Mathur , Frank H. Peters , Robert B. Taylor , Matthew L. Mitchell , Alan C. Nilsson , Stephen G. Grubb , Richard P. Schneider , Charles H. Joyner , Jonas Webjorn , Drew D. Perkins
IPC分类号： G02B6/12
CPC分类号： G02B6/12004 , G02B6/12007 , G02B6/12019 , G02B6/12023 , G02B6/12033 , G02B6/131 , G02B6/136 , H01S5/026 , H01S5/0262 , H01S5/0265 , H01S5/0268 , H01S5/0612 , H01S5/12 , H01S5/4025 , H01S5/4031 , H01S5/4087 , H01S5/50 , H04J14/02
摘要： A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to received all the signal outputs from the modulated sources and provide a combined output signal on an output waveguide from the chip. The modulated sources, combiner and output waveguide are all integrated on the same chip.
摘要翻译：一种包括调制源阵列的光子集成电路（PIC）芯片，每个调制源提供在不同于其它调制源的信道波长的信道波长处的调制信号输出，以及具有光耦合到接收到的所有信号输出的输入的波长选择性组合器并从芯片提供输出波导上的组合输出信号。调制源，组合器和输出波导均集成在同一芯片上。

50. 发明授权

US07751658B2 Monolithic transmitter photonic integrated circuit (TxPIC) having tunable modulated sources with feedback system for source power level or wavelength tuning 有权
标题翻译：具有可调调制源的单片发射器光子集成电路（TxPIC），其具有用于源功率电平或波长调谐的反馈系统
公开(公告)号：US07751658B2
公开(公告)日：2010-07-06
申请号：US11773938
申请日：2007-07-05
申请人： David F. Welch , Vincent G. Dominic , Fred A. Kish, Jr. , Robert B. Taylor , Matthew L. Mitchell , Alan C. Nilsson , Stephen G. Grubb , Charles H. Joyner
发明人： David F. Welch , Vincent G. Dominic , Fred A. Kish, Jr. , Robert B. Taylor , Matthew L. Mitchell , Alan C. Nilsson , Stephen G. Grubb , Charles H. Joyner
IPC分类号： G02B6/12 , G02B6/28
CPC分类号： H04B10/506 , H01S5/0085 , H01S5/02248 , H01S5/02284 , H01S5/026 , H01S5/0262 , H01S5/0265 , H01S5/0268 , H01S5/12 , H01S5/4031 , H01S5/4087
摘要： A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to received all the signal outputs from the modulated sources and provide a combined output signal on an output waveguide from the chip. The modulated sources, combiner and output waveguide are all integrated on the same chip.
摘要翻译：一种包括调制源阵列的光子集成电路（PIC）芯片，每个调制源提供在不同于其它调制源的信道波长的信道波长处的调制信号输出，以及具有光耦合到接收到的所有信号输出的输入的波长选择性组合器并从芯片提供输出波导上的组合输出信号。调制源，组合器和输出波导均集成在同一芯片上。

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