公开(公告)号：US20130011140A1

公开(公告)日：2013-01-10

申请号：US13177170

申请日：2011-07-06

Applicant: Hai Xu ,  Michael Francis Van Leeuwen ,  Emily F. Burmeister ,  Stephen G. Grubb

Inventor： Hai Xu ,  Michael Francis Van Leeuwen ,  Emily F. Burmeister ,  Stephen G. Grubb

IPC: H04J14/02

CPC classification number: H04J14/02 ,  H04B10/2525 ,  H04B10/25253 ,  H04B10/2563

Abstract: Consistent with the present disclosure, chromatic dispersion is introduced into an optical communication path including multiple segments or spans of dispersion shifted fiber (DSF). The chromatic dispersion generates phase mismatching between optical signals propagating along the optical communication path, i.e., the optical signals are decorrelated, such that mixing products are reduced inmagnitude, and the noise attributable to four wave mixing is correspondingly reduced.

Abstract translation: 与本公开一致，色散被引入到包括色散位移光纤（DSF）的多个段或跨度的光通信路径中。 色散产生沿着光通信路径传播的光信号之间的相位失配，即，光信号被去相关，使得混合产物的体积减小，并且相应地降低归因于四波混频的噪声。

公开(公告)号：US20120170937A1

公开(公告)日：2012-07-05

申请号：US12982930

申请日：2010-12-31

Applicant: Michael Francis Van Leeuwen

Inventor： Michael Francis Van Leeuwen

IPC: H04J14/02

CPC classification number: H04J14/02 ,  H04B10/07957 ,  H04B10/506 ,  H04J14/0224 ,  H04J14/0256

Abstract: The present disclosure provides a transmission system, apparatus and method to provide for variable channel spacing in multiplexed or combined optical signals for transmission over a network infrastructure. The channel spacing may be monitored and maintained at desired values in order to maximize the channel density under various conditions related to the network infrastructure. The individual carrier frequencies associated with each signal channel of the transmission system may be individually controlled to define the desired channel. The channel spacing may be altered to provide for higher channel densities increasing system capacity, or to provide for lower channel densities improving the overall reach of the transmission system. The channel spacing may be continuously monitored and maintained at desired values allowing for rapid and automated reconfiguration of the transmission system, which may result in maximized capacity and reduced costs.

Abstract translation: 本公开提供了一种用于在多路复用或组合光信号中提供可变信道间隔以用于通过网络基础设施进行传输的传输系统，装置和方法。 信道间隔可以被监视并保持在期望的值，以便在与网络基础设施相关的各种条件下最大化信道密度。 可以单独地控制与传输系统的每个信号信道相关联的各个载波频率以定义所需的信道。 可以改变信道间隔以提供增加系统容量的较高信道密度，或者提供改善传输系统总体覆盖范围的较低信道密度。 信道间隔可以被连续监测并保持在期望的值，允许传输系统的快速和自动重新配置，这可能导致最大的容量和降低的成本。

公开(公告)号：US09419742B2

公开(公告)日：2016-08-16

申请号：US13340982

申请日：2011-12-30

Applicant: Radhakrishnan L. Nagarajan ,  Masaki Kato ,  Michael Francis Van Leeuwen ,  Timothy Butrie

Inventor： Radhakrishnan L. Nagarajan ,  Masaki Kato ,  Michael Francis Van Leeuwen ,  Timothy Butrie

IPC: G02B6/12 ,  H04J14/02 ,  H04B10/50

CPC classification number: H04J14/0254 ,  G02B6/12019 ,  H04B10/506

Abstract: Consistent with one example of the disclosed implementations, a photonic integrated circuit (PIC) may be provided that includes s group of lasers and an arrayed waveguide grating (AWG) disposed on a substrate. Each laser in the group may supply an optical signal, such that each optical signal has a different wavelength. Each laser may be tunable to at least two designated wavelengths, which are separated from one another by a free spectral range (FSR) of the AWG. As a result, the optical signals provided from each laser may be combined by the AWG, regardless of which designated wavelength the optical signals have. Accordingly, a PIC may be provided that has a relatively simple construction but can supply optical signals having tunable wavelengths.

Abstract translation: 与所公开的实施例的一个示例一致，可以提供包括s组激光器和设置在衬底上的阵列波导光栅（AWG）的光子集成电路（PIC）。 组中的每个激光器可以提供光信号，使得每个光信号具有不同的波长。 每个激光器可以被调谐到至少两个指定的波长，它们通过AWG的自由光谱范围（FSR）彼此分开。 结果，从每个激光器提供的光信号可以由AWG组合，而不管光信号具有哪个指定波长。 因此，可以提供具有相对简单结构但可提供具有可调波长的光信号的PIC。

公开(公告)号：US20130230316A1

公开(公告)日：2013-09-05

申请号：US13536622

申请日：2012-06-28

Applicant: Iftekhar Hussain ,  Michael Francis Van Leeuwen ,  Marco E. Sosa ,  Vinayak Dangui ,  Abinder Dhillon

Inventor： Iftekhar Hussain ,  Michael Francis Van Leeuwen ,  Marco E. Sosa ,  Vinayak Dangui ,  Abinder Dhillon

IPC: H04J14/02

CPC classification number: H04J14/0272 ,  H04J14/0258 ,  H04J14/0267

Abstract: Methods and systems are disclosed including receiving, by circuitry of a node conforming to GMPLS protocol, a signal comprising at least one of an optical signal attribute indicative of parameters of a super-channel, the super-channel including a plurality of optical carriers, each of which having a corresponding one of a plurality of wavelengths and being modulated to carry a corresponding one of a plurality of data streams, the super-channel being provisioned in the optical network as one optical channel, wherein the optical signal attribute is one of: quantity of wavelengths of the super-channel, wavelength center frequency of the super-channel, wavelength modulation of the super-channel, wavelength baudrate of the super-channel, and wavelength FEC type of the super-channel. The node further receiving information indicative of frequency slices in use by the super-channel and calculating, using algorithms conforming to CSPF-TE protocol, a path of a second super-channel.

Abstract translation: 公开的方法和系统包括通过符合GMPLS协议的节点的电路接收包括指示超信道的参数的光信号属性，包括多个光载波的超信道中的至少一个的信号，每个 其具有多个波长中的相应一个并被调制以携带多个数据流中的相应一个数据流，所述超级信道在光网络中被提供为一个光信道，其中所述光信号属性是以下之一： 超声道的波长数，超声道的波长中心频率，超声道的波长调制，超声道的波长波特率，超声道的波长FEC类型。 所述节点进一步接收指示所述超级信道使用的频率片段的信息，并使用符合CSPF-TE协议的算法来计算第二超级信道的路径。

公开(公告)号：US20120251121A1

公开(公告)日：2012-10-04

申请号：US13078895

申请日：2011-04-01

Applicant: John D. McNicol ,  Michael Francis Van Leeuwen

Inventor： John D. McNicol ,  Michael Francis Van Leeuwen

IPC: H04J14/02

CPC classification number: H04J14/06 ,  H04J14/02 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0256

Abstract: Consistent with the present disclosure, data, in digital form, is received by a transmit node of an optical communication system, is processed and then output 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 wavelengths used for the plurality of carriers are spectrally spaced apart by a common, periodic fixed spacing. The plurality of carriers are optically combined with a fixed spacing combiner to form a superchannel. A plurality of superchannels are generated and then multiplexed together onto an optical communication path and transmitted to a receive node. Each superchannel includes a plurality of carriers, each spectrally separated by the same fixed spacing. The plurality of superchannels are spectrally separated by an amount corresponding to the fixed spacing of the plurality of carriers. At the receive node, the superchannels are optically demultiplexed, and the plurality of carriers of a respective superchannel are then supplied to a photodetector circuit, which receives additional light at one of the optical signal carrier wavelengths from a local oscillator laser. The resultant signals are then processed electronically to separate the individual carriers and output data corresponding to the input data.

Abstract translation: 根据本公开，数字形式的数据由光通信系统的发射节点接收，被处理并随后输出以驱动调制器。 调制器又根据接收的数据调制多个波长中的一个的光，形成多个对应的载波。 用于多个载波的多个波长通过共同的周期性固定间隔进行光谱间隔。 多个载波与固定间隔组合器光学组合以形成超声道。 生成多个超通道，然后一起多路复用到光通信路径上并发送到接收节点。 每个超级通道包括多个载体，每个载流子以相同的固定间隔进行光谱分离。 多个超通道被频谱地分开与多个载波的固定间隔对应的量。 在接收节点处，超级信道被光解复用，然后将相应超级信道的多个载波提供给光电检测器电路，光电检测器电路接收来自本地振荡器激光器的光信号载波波长之一的附加光。 然后，所得到的信号被电子地处理以分离各个载波并输出对应于输入数据的数据。

公开(公告)号：US20120251101A1

公开(公告)日：2012-10-04

申请号：US13078890

申请日：2011-04-01

Applicant: John D. McNicol ,  Michael Francis Van Leeuwen ,  Pierre Mertz ,  Hai Xu

Inventor： John D. McNicol ,  Michael Francis Van Leeuwen ,  Pierre Mertz ,  Hai Xu

IPC: H04B10/08

CPC classification number: H04B10/506 ,  H04B10/572 ,  H04J14/02

Abstract: Consistent with the present disclosure, data, in digital form, is received by a transmit node of an optical communication system, and is then provided to a modulator that, in turn, modulates light, received from an optical source at one of a plurality of periodically and preferably minimally spaced wavelengths. The plurality of periodically spaced wavelengths or carriers are grouped together with minimal carrier spacing, to form a superchannel. The carrier spacing between adjacent carriers is determined by detecting a beat frequency of a combined optical signal that includes the outputs of two adjacent optical sources. The beat frequency corresponds to a frequency difference between the outputs of the adjacent carriers. This frequency difference should correspond to a desired carrier spacing between each of the plurality of carriers. A frequency error between the beat frequency and the desired carrier spacing is then measured by down-converting the beat frequency with respect to a target reference frequency corresponding to the desired carrier frequency spacing. Based on the determined frequency error, the optical sources are controlled to adjust in frequency to minimize or reduce the frequency error to zero. For every pair of adjacent carriers, the corresponding outputs of the optical sources are compared in the above manner to determine a plurality of frequency errors. Each optical source can thus be tuned in order to realize a precise carrier spacing between each of the adjacent carriers.

Abstract translation: 与本公开一致，数字形式的数据由光通信系统的发射节点接收，然后被提供给调制器，调制器进而调制从光源以多个 周期性和优选地最小间隔的波长。 多个周期性间隔的波长或载波以最小载波间隔分组在一起以形成超频道。 通过检测包括两个相邻光源的输出的组合光信号的拍频来确定相邻载波之间的载波间隔。 节拍频率对应于相邻载波的输出之间的频率差。 该频率差应对应于多个载波中的每一个之间的期望载波间隔。 然后通过相对于对应于所需载波频率间隔的目标参考频率下变频拍频来测量拍频和所需载波间隔之间的频率误差。 基于确定的频率误差，控制光源的频率以使频率误差最小化或将频率误差降低到零。 对于每对相邻载波，以上述方式比较光源的相应输出以确定多个频率误差。 因此，可以调整每个光源以便在每个相邻载体之间实现精确的载波间隔。

公开(公告)号：US09900124B2

公开(公告)日：2018-02-20

申请号：US13078895

申请日：2011-04-01

Applicant: John D. McNicol ,  Michael Francis Van Leeuwen

Inventor： John D. McNicol ,  Michael Francis Van Leeuwen

IPC: H04J14/02 ,  H04J14/06

CPC classification number: H04J14/06 ,  H04J14/02 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0256

Abstract: Consistent with the present disclosure, data, in digital form, is received by a transmit node of an optical communication system, is processed and then output 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 wavelengths used for the plurality of carriers are spectrally spaced apart by a common, periodic fixed spacing. The plurality of carriers are optically combined with a fixed spacing combiner to form a superchannel. A plurality of superchannels are generated and then multiplexed together onto an optical communication path and transmitted to a receive node. Each superchannel includes a plurality of carriers, each spectrally separated by the same fixed spacing. The plurality of superchannels are spectrally separated by an amount corresponding to the fixed spacing of the plurality of carriers. At the receive node, the superchannels are optically demultiplexed, and the plurality of carriers of a respective superchannel are then supplied to a photodetector circuit, which receives additional light at one of the optical signal carrier wavelengths from a local oscillator laser. The resultant signals are then processed electronically to separate the individual carriers and output data corresponding to the input data.

公开(公告)号：US09124371B2

公开(公告)日：2015-09-01

申请号：US13078890

申请日：2011-04-01

Applicant: John D. McNicol ,  Michael Francis Van Leeuwen ,  Pierre Mertz ,  Hai Xu

Inventor： John D. McNicol ,  Michael Francis Van Leeuwen ,  Pierre Mertz ,  Hai Xu

IPC: H04B10/572 ,  H04B10/50 ,  H04J14/02

CPC classification number: H04B10/506 ,  H04B10/572 ,  H04J14/02

Abstract: Consistent with the present disclosure, data, in digital form, is received by a transmit node of an optical communication system, and is then provided to a modulator that, in turn, modulates light, received from an optical source at one of a plurality of periodically and preferably minimally spaced wavelengths. The plurality of periodically spaced wavelengths or carriers are grouped together with minimal carrier spacing, to form a superchannel. The carrier spacing between adjacent carriers is determined by detecting a beat frequency of a combined optical signal that includes the outputs of two adjacent optical sources. The beat frequency corresponds to a frequency difference between the outputs of the adjacent carriers. This frequency difference should correspond to a desired carrier spacing between each of the plurality of carriers. A frequency error between the beat frequency and the desired carrier spacing is then measured by down-converting the beat frequency with respect to a target reference frequency corresponding to the desired carrier frequency spacing. Based on the determined frequency error, the optical sources are controlled to adjust in frequency to minimize or reduce the frequency error to zero. For every pair of adjacent carriers, the corresponding outputs of the optical sources are compared in the above manner to determine a plurality of frequency errors. Each optical source can thus be tuned in order to realize a precise carrier spacing between each of the adjacent carriers.

Abstract translation: 与本公开一致，数字形式的数据由光通信系统的发射节点接收，然后被提供给调制器，调制器进而调制从光源以多个 周期性和优选地最小间隔的波长。 多个周期性间隔的波长或载波以最小载波间隔分组在一起以形成超频道。 通过检测包括两个相邻光源的输出的组合光信号的拍频来确定相邻载波之间的载波间隔。 节拍频率对应于相邻载波的输出之间的频率差。 该频率差应对应于多个载波中的每一个之间的期望载波间隔。 然后通过相对于对应于所需载波频率间隔的目标参考频率下变频拍频来测量拍频和所需载波间隔之间的频率误差。 基于确定的频率误差，控制光源的频率以使频率误差最小化或将频率误差降低到零。 对于每对相邻载波，以上述方式比较光源的相应输出以确定多个频率误差。 因此，可以调整每个光源以便在每个相邻载体之间实现精确的载波间隔。

公开(公告)号：US08660428B2

公开(公告)日：2014-02-25

申请号：US12982930

申请日：2010-12-31

Applicant: Michael Francis Van Leeuwen

Inventor： Michael Francis Van Leeuwen

IPC: H04J14/00

CPC classification number: H04J14/02 ,  H04B10/07957 ,  H04B10/506 ,  H04J14/0224 ,  H04J14/0256

Abstract: The present disclosure provides a transmission system, apparatus and method to provide for variable channel spacing in multiplexed or combined optical signals for transmission over a network infrastructure. The channel spacing may be monitored and maintained at desired values in order to maximize the channel density under various conditions related to the network infrastructure. The individual carrier frequencies associated with each signal channel of the transmission system may be individually controlled to define the desired channel. The channel spacing may be altered to provide for higher channel densities increasing system capacity, or to provide for lower channel densities improving the overall reach of the transmission system. The channel spacing may be continuously monitored and maintained at desired values allowing for rapid and automated reconfiguration of the transmission system, which may result in maximized capacity and reduced costs.

Abstract translation: 本公开提供了一种用于在多路复用或组合光信号中提供可变信道间隔以用于通过网络基础设施进行传输的传输系统，装置和方法。 信道间隔可以被监视并保持在期望的值，以便在与网络基础设施相关的各种条件下最大化信道密度。 可以单独地控制与传输系统的每个信号信道相关联的各个载波频率以定义所需的信道。 可以改变信道间隔以提供增加系统容量的较高信道密度，或者提供改善传输系统总体覆盖范围的较低信道密度。 信道间隔可以被连续监测并保持在期望的值，允许传输系统的快速和自动重新配置，这可能导致最大的容量和降低的成本。

公开(公告)号：US20130279911A1

公开(公告)日：2013-10-24

申请号：US13449532

申请日：2012-04-18

Applicant: Mehrdad Ziari ,  Scott Corzine ,  Masaki Kato ,  Michael Francis Van Leeuwen ,  Radhakrishnan L. Nagarajan ,  Matthew L. Mitchell ,  Fred A. Kish, JR.

Inventor： Mehrdad Ziari ,  Scott Corzine ,  Masaki Kato ,  Michael Francis Van Leeuwen ,  Radhakrishnan L. Nagarajan ,  Matthew L. Mitchell ,  Fred A. Kish, JR.

IPC: H04J14/06 ,  H01S3/30

CPC classification number: H04B10/2916 ,  H01S3/094073 ,  H01S3/302 ,  H01S5/005 ,  H01S5/4012

Abstract: A Raman pump may include a dual output laser configured to output two optical signals; a delay interferometer configured to delay a first of the two optical signals to decorrelate the two optical signals from each other; and a combiner configured to combine the delayed first of the two optical signals and a second of the two optical signals to provide a Raman amplification signal.

Abstract translation: 拉曼泵可以包括配置成输出两个光信号的双输出激光器; 延迟干涉仪被配置为延迟两个光信号中的第一个以将两个光信号相互去相关; 以及组合器，其被配置为组合两个光信号中延迟的第一个和两个光信号中的第二个，以提供拉曼放大信号。