公开(公告)号：US07321728B2

公开(公告)日：2008-01-22

申请号：US11281437

申请日：2005-11-18

Applicant: James Harley ,  Lacra Pavel

Inventor： James Harley ,  Lacra Pavel

IPC: H04B10/08

CPC classification number: H04B10/07955 ,  H04B10/077 ,  H04J14/02 ,  H04J14/0298 ,  H04L5/02 ,  H04L27/10

Abstract: An optical signal occupying one or more wavelengths. An optical data signal on each wavelength is modulated with a respective overhead (dither) signal, resulting in a respective dithered optical signal. The amplitude of a particular overhead signal used to modulate the corresponding optical data signal is chosen so that the RMS value of the overhead signal in the dithered optical signal is proportional to the average intensity of the optical data signal. The instantaneous frequency of each overhead signal is time-varying and each possible frequency belongs to a distinct set of frequencies which are all harmonically related to a fundamental frequency. The distinctness of each set of frequencies allows each overhead signal to be uniquely isolated from an aggregate overhead signal. The harmonic relationship among the frequencies allows improved accuracy of RMS detection at a receiver as well as reduced computational complexity, as each possible frequency for each overhead signal can be made to fall at the center of one of the frequency bins of a single FFT of reasonable size performed at a receiver. Methods and systems for generating and detecting such signals are disclosed.

Abstract translation: 占据一个或多个波长的光信号。 每个波长上的光学数据信号用相应的开销（抖动）信号进行调制，产生相应的抖动光信号。 选择用于调制对应的光数据信号的特定开销信号的振幅，使得抖动光信号中的开销信号的RMS值与光数据信号的平均强度成比例。 每个开销信号的瞬时频率是时变的，并且每个可能的频率属于与基频谐波相关的一组不同的频率。 每组频率的独特性允许每个开销信号与聚合开销信号唯一隔离。 频率之间的谐波关系允许提高接收机RMS检测的精度以及降低的计算复杂度，因为每个开销信号的每个可能的频率可以被置于合理的单个FFT的频率仓之一的中心 在接收机上执行的大小。 公开了用于产生和检测这些信号的方法和系统。

公开(公告)号：US07197243B1

公开(公告)日：2007-03-27

申请号：US09539706

申请日：2000-03-31

Applicant: James Harley ,  Lacra Pavel

Inventor： James Harley ,  Lacra Pavel

IPC: H04B10/08

CPC classification number: H04B10/07955 ,  H04B10/077 ,  H04J14/02 ,  H04J14/0298 ,  H04L5/02 ,  H04L27/10

Abstract: An optical signal occupying one or more wavelengths. An optical data signal on each wavelength is modulated with a respective overhead (dither) signal, resulting in a respective dithered optical signal. The amplitude of a particular overhead signal used to modulate the corresponding optical data signal is chosen so that the RMS value of the overhead signal in the dithered optical signal is proportional to the average intensity of the optical data signal. The instantaneous frequency of each overhead signal is time-varying and each possible frequency belongs to a distinct set of frequencies which are all harmonically related to a fundamental frequency. The distinctness of each set of frequencies allows each overhead signal to be uniquely isolated from an aggregate overhead signal. The harmonic relationship among the frequencies allows improved accuracy of RMS detection at a receiver as well as reduced computational complexity, as each possible frequency for each overhead signal can be made to fall at the center of one of the frequency bins of a single FFT of reasonable size performed at a receiver. Methods and systems for generating and detecting such signals are disclosed.

Abstract translation: 占据一个或多个波长的光信号。 每个波长上的光学数据信号用相应的开销（抖动）信号进行调制，产生相应的抖动光信号。 选择用于调制对应的光数据信号的特定开销信号的振幅，使得抖动光信号中的开销信号的RMS值与光数据信号的平均强度成比例。 每个开销信号的瞬时频率是时变的，并且每个可能的频率属于与基频谐波相关的一组不同的频率。 每组频率的独特性允许每个开销信号与聚合开销信号唯一隔离。 频率之间的谐波关系允许提高接收机RMS检测的精度以及降低的计算复杂度，因为每个开销信号的每个可能的频率可以被置于合理的单个FFT的频率仓之一的中心 在接收机上执行的大小。 公开了用于产生和检测这些信号的方法和系统。

公开(公告)号：US20060078337A1

公开(公告)日：2006-04-13

申请号：US11281437

申请日：2005-11-18

Applicant: James Harley ,  Lacra Pavel

Inventor： James Harley ,  Lacra Pavel

IPC: H04B10/04

CPC classification number: H04B10/07955 ,  H04B10/077 ,  H04J14/02 ,  H04J14/0298 ,  H04L5/02 ,  H04L27/10

Abstract: An optical signal occupying one or more wavelengths. An optical data signal on each wavelength is modulated with a respective overhead (dither) signal, resulting in a respective dithered optical signal. The amplitude of a particular overhead signal used to modulate the corresponding optical data signal is chosen so that the RMS value of the overhead signal in the dithered optical signal is proportional to the average intensity of the optical data signal. The instantaneous frequency of each overhead signal is time-varying and each possible frequency belongs to a distinct set of frequencies which are all harmonically related to a fundamental frequency. The distinctness of each set of frequencies allows each overhead signal to be uniquely isolated from an aggregate overhead signal. The harmonic relationship among the frequencies allows improved accuracy of RMS detection at a receiver as well as reduced computational complexity, as each possible frequency for each overhead signal can be made to fall at the center of one of the frequency bins of a single FFT of reasonable size performed at a receiver. Methods and systems for generating and detecting such signals are disclosed.

Abstract translation: 占据一个或多个波长的光信号。 每个波长上的光学数据信号用相应的开销（抖动）信号进行调制，产生相应的抖动光信号。 选择用于调制对应的光数据信号的特定开销信号的振幅，使得抖动光信号中的开销信号的RMS值与光数据信号的平均强度成比例。 每个开销信号的瞬时频率是时变的，并且每个可能的频率属于与基频谐波相关的一组不同的频率。 每组频率的独特性允许每个开销信号与聚合开销信号唯一隔离。 频率之间的谐波关系允许提高接收机RMS检测的精度以及降低的计算复杂度，因为每个开销信号的每个可能的频率可以被置于合理的单个FFT的频率仓之一的中心 在接收机上执行的大小。 公开了用于产生和检测这些信号的方法和系统。

公开(公告)号：US07058301B2

公开(公告)日：2006-06-06

申请号：US10087719

申请日：2002-02-28

Applicant: Jonathan L. Bosloy ,  Lacra Pavel ,  Chris Passier ,  Matthew Brown

Inventor： Jonathan L. Bosloy ,  Lacra Pavel ,  Chris Passier ,  Matthew Brown

IPC: H04B10/08 ,  H04B10/12 ,  H04J14/02

CPC classification number: H04J14/0221 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0284

Abstract: A request method for performing optical power management to accomplish planned addition and removal of wavelengths in an optical communications system is disclosed, wherein each wavelength has a path of transmission through the system. The method comprises communicating a request for a power ramp to at least one path network component in the path, determining that the path network component has made preparations for the power ramp, and performing a power ramp in response to the determination. Further, a response method for performing power management to accomplish planned addition and removal of wavelengths in an optical communications system is disclosed, wherein each wavelength has a path of transmission through the system. The method comprises receiving a request for a power ramp, making preparations for the power ramp, determining that the power ramp has been completed, and resuming normal operation in response to the determination.

Abstract translation: 公开了一种用于执行光功率管理以实现光通信系统中的波长的计划的添加和去除的请求方法，其中每个波长具有通过系统的传输路径。 所述方法包括：向所述路径中的至少一个路径网络组件传达对功率斜坡的请求，确定所述路径网络组件已经准备好所述功率斜坡，以及响应于所述确定执行功率斜坡。 此外，公开了一种用于执行功率管理以实现光通信系统中的波长的计划的添加和去除的响应方法，其中每个波长具有通过系统的传输路径。 该方法包括接收对功率斜坡的请求，准备功率斜坡，确定功率斜坡已经完成，并响应于该确定恢复正常操作。

公开(公告)号：US06856454B2

公开(公告)日：2005-02-15

申请号：US10601183

申请日：2003-06-20

Applicant: Lacra Pavel ,  Andrew Robinson

Inventor： Lacra Pavel ,  Andrew Robinson

IPC: H01S3/067 ,  H01S3/13 ,  H01S3/30 ,  H04B10/17 ,  H04J14/02 ,  H01S3/00

CPC classification number: H04B10/296 ,  H01S3/06758 ,  H01S3/1301 ,  H01S3/302 ,  H01S2301/04 ,  H04J14/0221

Abstract: A method for dynamically compensating for signal loss and dispersion in an optical signal traversing though an optical network. The method includes providing a dynamic gain equalization filter (DGEQ) having a dynamically adjustable transfer function, and providing a first optical amplifier and a second optical amplifier interconnected by the DGEQ to form a dynamic amplifier site in the optical network. The method further includes controlling spectral power profile of the optical signal at an output of the dynamic amplifier site by dynamically adjusting a transfer function associated with the DGEQ.

Abstract translation: 一种用于动态补偿通过光网络穿过的光信号中的信号损耗和色散的方法。 该方法包括提供具有动态可调节传递函数的动态增益均衡滤波器（DGEQ），并提供由DGEQ互连的第一光放大器和第二光放大器，以在光网络中形成动态放大器位置。 该方法还包括通过动态地调整与DGEQ相关联的传递函数来控制动态放大器位置的输出处的光信号的光谱功率分布。

公开(公告)号：US06757099B2

公开(公告)日：2004-06-29

申请号：US09930367

申请日：2001-08-15

Applicant: Lacra Pavel ,  Xiaona Meng

Inventor： Lacra Pavel ,  Xiaona Meng

IPC: H04B1012

CPC classification number: H04B10/296 ,  H01S3/06754 ,  H01S3/10015 ,  H01S3/1301 ,  H01S3/1305

Abstract: An improved optical power transient control scheme is provided for optical amplifiers used in long haul, high capacity DWDM optical networks. The optical power transient control scheme employs a combination of feed-forward and feedback control mechanisms to adjust the pump laser current of an amplifier. In this way, the optical power transient control scheme allows for very fast detection of transient changes in optical input power and fast control settling time with minimal optical power degradation.

Abstract translation: 为长距离，高容量DWDM光网络中使用的光放大器提供了改进的光功率瞬态控制方案。 光功率瞬态控制方案采用前馈和反馈控制机制的组合来调节放大器的泵浦激光电流。 以这种方式，光功率瞬变控制方案允许以最小的光功率降级非常快速地检测光输入功率的瞬时变化和快速的控制建立时间。