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1. 发明授权

US08160442B2 Interferometric optical signal-to-noise ratio measurement using a calibration factor 有权
标题翻译：使用校准因子进行干涉光信噪比测量
公开(公告)号：US08160442B2
公开(公告)日：2012-04-17
申请号：US12283656
申请日：2008-09-15
申请人： Mikhail Brodsky , Mark David Feuer , Lynn E. Nelson , Jungmi Oh
发明人： Mikhail Brodsky , Mark David Feuer , Lynn E. Nelson , Jungmi Oh
IPC分类号： H04B10/08
CPC分类号： H04B10/07953
摘要： Systems and methods are described that measure the OSNR of an optical channel. Embodiments provide OSNR measurement methods that distinguish the intensities of the coherent modulated signal from the incoherent noise intensity occupying the same optical band using a calibration factor ζ.
摘要翻译：描述了测量光信道的OSNR的系统和方法。实施例提供了使用校准因子ζ将相干调制信号的强度与占据相同光带的非相干噪声强度区分开的OSNR测量方法。

2. 发明授权

US08139952B2 System and method for measuring the extinction ratio of an optical transmitter using an interferogram wing-to-peak ratio 有权
标题翻译：用于使用干涉图翼 - 峰比测量光发射机的消光比的系统和方法
公开(公告)号：US08139952B2
公开(公告)日：2012-03-20
申请号：US12383300
申请日：2009-03-23
申请人： Lynn E. Nelson , Mikhail Brodsky , Jungmi Oh , Cristian Antonelli , Paul Shala Henry
发明人： Lynn E. Nelson , Mikhail Brodsky , Jungmi Oh , Cristian Antonelli , Paul Shala Henry
IPC分类号： H04B10/04 , H04B10/08 , H04B10/00
CPC分类号： H04B10/0731
摘要： Systems and methods are described that derive a relationship between an optical transmitter's extinction ratio (Er) and its interferogram wing-to-peak ratio (Iwp). The change in an optical transmitter's Iwp correlates with a change in measured Er. As the Er of a telecom signal changes, the power of the modulated signal's interferogram wings change. After a relationship between Iwp and measured Er has been derived for an optical transmitter, the relationship may be used after deployment to determine an Er by measuring an Iwp.
摘要翻译：描述了导出光发射机的消光比（Er）与其干涉图翼峰比（Iwp）之间的关系的系统和方法。光发射机的Iwp的变化与测量的Er的变化相关。随着电信信号的变化，调制信号的干涉图翼的功率发生变化。在对于光学发射机进行了Iwp和测量的Er之间的关系之后，可以在部署之后使用该关系以通过测量Iwp来确定Er。

3. 发明申请

US20100067904A1 Calibration factor for interferometric optical signal-to-noise ratio measurement 有权
标题翻译：用于干涉光信噪比测量的校准因子
公开(公告)号：US20100067904A1
公开(公告)日：2010-03-18
申请号：US12283658
申请日：2008-09-15
申请人： Mikhail Brodsky , Mark David Feuer , Lynn E. Nelson , Jungmi Oh
发明人： Mikhail Brodsky , Mark David Feuer , Lynn E. Nelson , Jungmi Oh
IPC分类号： H04B10/08
CPC分类号： H04B10/07953
摘要： Systems and methods are described that measure the OSNR of an optical channel. Embodiments provide OSNR measurement methods that distinguish the intensities of the coherent modulated signal from the incoherent noise intensity occupying the same optical band using a calibration factor ζ.
摘要翻译：描述了测量光信道的OSNR的系统和方法。实施例提供了使用校准因子ζ将相干调制信号的强度与占据相同光带的非相干噪声强度区分开的OSNR测量方法。

4. 发明申请

US20100067903A1 Interferometric optical signal-to-noise ratio measurement using a calibration factor 有权
标题翻译：使用校准因子进行干涉光信噪比测量
公开(公告)号：US20100067903A1
公开(公告)日：2010-03-18
申请号：US12283656
申请日：2008-09-15
申请人： Mikhail Brodsky , Mark David Feuer , Lynn E. Nelson , Jungmi Oh
发明人： Mikhail Brodsky , Mark David Feuer , Lynn E. Nelson , Jungmi Oh
IPC分类号： H04B10/08
CPC分类号： H04B10/07953
摘要： Systems and methods are described that measure the OSNR of an optical channel. Embodiments provide OSNR measurement methods that distinguish the intensities of the coherent modulated signal from the incoherent noise intensity occupying the same optical band using a calibration factor ζ.
摘要翻译：描述了测量光信道的OSNR的系统和方法。实施例提供了区分相干调制信号的从非相干噪声强度使用校准因子ζ占据相同的光带的强度OSNR测量方法。

5. 发明授权

US07082228B2 Multiple order PMD compensator for optical fiber transmission system 有权
标题翻译：用于光纤传输系统的多阶PMD补偿器
公开(公告)号：US07082228B2
公开(公告)日：2006-07-25
申请号：US10442609
申请日：2003-05-21
申请人： Lynn E. Nelson
发明人： Lynn E. Nelson
IPC分类号： G02B6/27
CPC分类号： H04B10/2569 , G02B6/272 , G02B6/278 , H04B2210/003
摘要： In accordance with the invention, an optical fiber transmission system is provided with multiple order PMD compensation to provide enhanced compensation at high bit rates and across a range of frequencies. Specifically, PMD is compensated by a concatenated series of components, each component configured to compensate for the effects of a successively higher order term of a PMD Taylor series approximation. Advantageously, each component comprises a polarization controller and a differential dispersion element of specified order. In an exemplary embodiment, the first order differential dispersion element can be a standard differential group delay (DGD) element. The element of second order can be a differential group-velocity dispersion element, and the third order element can be a differential dispersion slope element. These differential dispersion elements of various orders can be fixed or tunable elements in different embodiments.
摘要翻译：根据本发明，光纤传输系统被提供有多阶PMD补偿，以在高比特率和频率范围内提供增强的补偿。具体地，PMD由连接的一系列组件补偿，每个组件被配置为补偿PMD泰勒级数近似的连续更高阶项的影响。有利地，每个组件包括具有指定顺序的偏振控制器和差分色散元件。在示例性实施例中，一阶差分色散元素可以是标准差分群延迟（DGD）元素。第二级元件可以是差分组 - 速度色散元件，并且第三级元件可以是差分色散斜率元件。在不同实施例中，各种顺序的这些差分色散元件可以是固定的或可调元件。

6. 发明授权

US06519027B1 Polarization mode dispersion measurement 有权
标题翻译：极化模式色散测量
公开(公告)号：US06519027B1
公开(公告)日：2003-02-11
申请号：US09520537
申请日：2000-03-08
申请人： James Power Gordon , Robert Meachem Jopson , Herwig Werner Kogelnik , Lynn E. Nelson
发明人： James Power Gordon , Robert Meachem Jopson , Herwig Werner Kogelnik , Lynn E. Nelson
IPC分类号： G01N2100
CPC分类号： G01M11/336 , G01M11/333 , G01M11/335
摘要： Four different light signals, all of the same optical frequency, but, having different states of polarization, are transmitted through an optical device and the mean signal delay of each of the light signals is measured. Calculations, based upon the relationship, &tgr;g=&tgr;0−½ {right arrow over (&OHgr;)}·{overscore (s)}, describing the polarization dependence of &tgr;g (a measured mean signal delay) through the device as a function of &tgr;0 (a polarization independent delay component of the device), {right arrow over (&OHgr;)} (the PMD vector at the device input) and {overscore (s)} (the input Stokes vector of the light signal), yield the PMD of the device. Also, by comparing data taken at adjacent wavelengths, the chromatic dispersion of the optical device can be accurately measured even in the presence of PMD.
摘要翻译：四个不同的光信号，所有相同的光频率，但是具有不同的偏振状态，通过光学器件传输，并且测量每个光信号的平均信号延迟。基于该关系计算taug = tau0-½（右箭头（OMEGA。）{overscore（s，描述通过器件的taug的极化依赖性（测量的平均信号延迟）作为τ0的函数（偏振独立延迟器件的组件），{右箭头（OMEGA（器件输入端的PMD矢量））和{overscore（s（光信号的输入斯托克斯矢量））产生器件的PMD，并且通过比较数据在相邻的波长处，即使在存在PMD的情况下也能够精确地测量光学装置的色散。

7. 发明授权

US06385357B1 Method and apparatus for compensating for higher order paid PMD in a fiber transmission system at the fiber output 有权
标题翻译：用于在光纤输出端补偿光纤传输系统中高阶支付PMD的方法和装置
公开(公告)号：US06385357B1
公开(公告)日：2002-05-07
申请号：US09533044
申请日：2000-03-22
申请人： Robert M. Jopson , Herwig Kogelnik , Lynn E. Nelson
发明人： Robert M. Jopson , Herwig Kogelnik , Lynn E. Nelson
IPC分类号： G02B600
CPC分类号： G02B6/278 , H04B10/2569
摘要： In an optical fiber transmission system, higher order PMD compensation is realized at the output of the transmission fiber. A compensator is placed at the output of the transmission fiber whose PMD vector is equal in magnitude and opposite in direction to the PMD vector at the output of the transmission fiber. The compensator PMD vector sweeps at a rate that matches the frequency sweep rate of the PMD vector at the fiber output. To compensate for second order PMD while avoiding the introduction of higher order PMD effects, a planar sweep is advantageously employed. A polarization pair controller is employed in advance of the compensator to align the PMD vector at the compensator input with the PMD vector at the fiber output so that the two cancel as well as to align the rotational axis of the compensator PMD vector with the rotational axis of the fiber PMD vector. The system may also include a monitoring device to monitor the compensation of fiber PMD, to determine the need for adjustments to the system.
摘要翻译：在光纤传输系统中，在传输光纤的输出端实现更高阶的PMD补偿。补偿器放置在传输光纤的输出处，其PMD矢量在传输光纤的输出处的幅度相等于PMD矢量的方向相反。补偿器PMD矢量以与光纤输出端的PMD矢量的频率扫描速率相匹配的速率扫描。为了补偿二阶PMD，同时避免引入更高阶PMD效应，有利地采用平面扫描。在补偿器之前采用极化对控制器，以将补偿器输入处的PMD矢量与光纤输出端的PMD矢量对准，使得两者抵消以及使补偿器PMD矢量的旋转轴与旋转轴线的纤维PMD载体。该系统还可以包括用于监视光纤PMD的补偿的监视装置，以确定对系统进行调整的需要。

8. 发明授权

US09031419B2 Optical networks using multi-spatial mode media 有权
标题翻译：使用多空间模式媒体的光网络
公开(公告)号：US09031419B2
公开(公告)日：2015-05-12
申请号：US13247230
申请日：2011-09-28
申请人： Sheryl Woodward , Martin Birk , Michael Brodsky , Lynn E. Nelson , Xiang Zhou , Mark D. Feuer
发明人： Sheryl Woodward , Martin Birk , Michael Brodsky , Lynn E. Nelson , Xiang Zhou , Mark D. Feuer
IPC分类号： H04B10/00 , H04J14/04 , H04B10/2581 , H04B10/50 , H04J14/02
CPC分类号： H04J14/04 , H04B10/2581 , H04B10/5053 , H04J14/02 , H04J14/0212
摘要： A fiber optic system includes a transmitter for transmitting high-speed streaming electrical data to a receiver for receiving the high-speed data. In order to transmit multiple channels in the system at high-speeds, an electrical data signal is converted into multiple optical sub-signals. Each of the multiple optical sub-signals are transmitted at the common wavelength on multi-spatial mode media. The receiver receives the multiple optical sub-signals as a multi-spatial mode optical signal and separates the multi-spatial mode optical signal into branch signals having a common wavelength. The receiver mixes each of the branch signals with optical carrier waves having the common wavelength and converts the branch signals into electrical signals. Digital signal processing is used to recover the data sub-signals which are used to recover the original data signal.
摘要翻译：光纤系统包括用于将高速流式电气数据传送到用于接收高速数据的接收器的发射器。为了在系统中以高速传输多个信道，电数据信号被转换成多个光子信号。多个光子信号中的每一个在多空间模式媒体上以公共波长传输。接收机接收多个光子信号作为多空间模式光信号，并将多空间模式光信号分离为具有共同波长的分支信号。接收器将每个分支信号与具有公共波长的光载波混合，并将分支信号转换成电信号。数字信号处理用于恢复用于恢复原始数据信号的数据子信号。

9. 发明授权

US08160443B2 Calibration factor for interferometric optical signal-to-noise ratio measurement 有权
标题翻译：用于干涉光信噪比测量的校准因子
公开(公告)号：US08160443B2
公开(公告)日：2012-04-17
申请号：US12283658
申请日：2008-09-15
申请人： Mikhail Brodsky , Mark David Feuer , Lynn E. Nelson , Jungmi Oh
发明人： Mikhail Brodsky , Mark David Feuer , Lynn E. Nelson , Jungmi Oh
IPC分类号： H04B10/08
CPC分类号： H04B10/07953
摘要： Systems and methods are described that measure the OSNR of an optical channel. Embodiments provide OSNR measurement methods that distinguish the intensities of the coherent modulated signal from the incoherent noise intensity occupying the same optical band using a calibration factor ζ.
摘要翻译：描述了测量光信道的OSNR的系统和方法。实施例提供了使用校准因子ζ将相干调制信号的强度与占据相同光带的非相干噪声强度区分开的OSNR测量方法。

10. 发明授权

US07206123B2 Raman amplifier, pump source for use in a raman amplifier and method for amplifying an optical signal 有权
标题翻译：拉曼放大器，用于拉曼放大器的泵浦源和用于放大光信号的方法
公开(公告)号：US07206123B2
公开(公告)日：2007-04-17
申请号：US10935286
申请日：2004-09-08
申请人： Yoshihiro Emori , Jake Bromage , Lynn E. Nelson , Shu Namiki
发明人： Yoshihiro Emori , Jake Bromage , Lynn E. Nelson , Shu Namiki
IPC分类号： H01S4/00 , H04B10/12
CPC分类号： H01S3/06754 , H01S3/0078 , H01S3/06758 , H01S3/094011 , H01S3/0941 , H01S3/10069 , H01S3/1305 , H01S3/302 , H04B10/2916
摘要： A method, pump and Raman amplifier control an amount of stimulated Brillouin scattering (SBS) produced by the Raman amplifier pump so as to regulate a power penalty experienced by a receiver due to the SBS. A multi-mode semiconductor laser produces a multi-mode pump light having a dominate mode at a predetermined wavelength. At least a portion of the multi-mode pump light is coupled to a Raman gain medium in a forward pumping direction. A reflection sensor monitors reflected light that is at least partially reflected from said Raman gain medium. The reflection sensor has a passband characteristic that passes optical power of a dominate SBS peak of said reflected light, but suppresses other SBS peaks that are offset in wavelength from said dominate SBS peak. The optical power of the dominate SBS peak is compared to an optical power of the multi-mode pump light, and it is determined whether a result of the comparing step is above a predetermined threshold.
摘要翻译：一种方法，泵浦和拉曼放大器控制由拉曼放大器泵产生的受激布里渊散射（SBS）的量，以便调节由于SBS而导致的接收器所经受的功率损失。多模半导体激光器产生具有预定波长的主导模式的多模式泵浦光。至少一部分多模式泵浦光在正向泵送方向上耦合到拉曼增益介质。反射传感器监测至少部分地从所述拉曼增益介质反射的反射光。反射传感器具有通过所述反射光的主要SBS峰值的光焦度的通带特性，但抑制了波长偏离所述主导SBS峰值的其他SBS峰值。将主要SBS峰值的光功率与多模式泵浦光的光功率进行比较，并且确定比较步骤的结果是否高于预定阈值。

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