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1. 发明申请

US20060045541A1 Asymmetric long-haul transmission paths with optical phase conjugation 有权
公开(公告)号：US20060045541A1
公开(公告)日：2006-03-02
申请号：US10932980
申请日：2004-09-02
申请人： Aref Chowdhury , Rene-Jean Essiambre , Gregory Raybon
发明人： Aref Chowdhury , Rene-Jean Essiambre , Gregory Raybon
IPC分类号： H04B10/04
CPC分类号： H04B10/2531
摘要： An apparatus includes a non-solitonic all-optical communication path having serially connected first and second segments. The first segment end-couples to a lumped optical transmitter. The second segment end-couples to a lumped optical receiver. Each segment has a series of spans of transmission optical fibers. The all-optical communication path has an optical phase conjugator that optically end-couples the first segment to the second segment. The optical phase conjugator is positioned away from the path's midpoint.

2. 发明授权

US08396372B2 Asymmetric long-haul transmission paths with optical phase conjugation 有权
标题翻译：具有光相位共轭的不对称长距离传输路径
公开(公告)号：US08396372B2
公开(公告)日：2013-03-12
申请号：US10932980
申请日：2004-09-02
申请人： Aref Chowdhury , Rene′-Jean Essiambre , Gregory Raybon
发明人： Aref Chowdhury , Rene′-Jean Essiambre , Gregory Raybon
IPC分类号： H04B10/00
CPC分类号： H04B10/2531
摘要： An apparatus includes a non-solitonic all-optical communication path having serially connected first and second segments. The first segment end-couples to a lumped optical transmitter. The second segment end-couples to a lumped optical receiver. Each segment has a series of spans of transmission optical fibers. The all-optical communication path has an optical phase conjugator that optically end-couples the first segment to the second segment. The optical phase conjugator is positioned away from the path's midpoint.
摘要翻译：一种装置包括具有串联连接的第一和第二段的非孤子全光通信路径。第一段端接到集中的光发射机。第二段端接到集总光接收器。每个段都有一系列传输光纤。全光通信路径具有光学相位共轭器，其将第一段光学端接耦合到第二段。光学相位共轭器远离路径的中点定位。

3. 发明授权

US06606176B1 Modulation format with low sensitivity to fiber nonlinearity 有权
标题翻译：对光纤非线性灵敏度低的调制格式
公开(公告)号：US06606176B1
公开(公告)日：2003-08-12
申请号：US09372486
申请日：1999-08-12
申请人： Rene'-Jean Essiambre , Benny Mikkelsen , Gregory Raybon
发明人： Rene'-Jean Essiambre , Benny Mikkelsen , Gregory Raybon
IPC分类号： H04B1000
CPC分类号： H04B10/2543 , H04B10/508
摘要： A method for modulating fiber optic transmissions with a low sensitivity to fiber non-linearity utilizes short pulses (typically shorter than 20 ps), and bit rates of 10 Gb/s and higher, to improve performance relative to heretofore known nonlinear transmission with Return-to-Zero (RZ) format implementations. At a base bit rate of 40 Gb/s, a distance determination for achieving 100% cumulative dispersion compensation is made, and a predetermined amount of pre-dispersion compensation is applied based on a determined distance using lower duty cycles for transmission. Higher bit rates (i.e., higher than 40 Gb/s) broaden the spectral bandwidth of the transmission and can result in no pre-dispersion compensation or negative distance pre-dispersion compensation of the same sign as the transmission fiber.
摘要翻译：用于对光纤非线性的低灵敏度调制光纤传输的方法利用短脉冲（通常短于20ps）和10Gb / s以上的比特率，以提高相对于迄今已知的非线性传输的性能，零（RZ）格式实现。以40Gb / s的基本比特率，进行用于实现100％累积色散补偿的距离确定，并且使用较低的占空比进行传输，基于确定的距离来施加预定量的预分散补偿。较高的比特率（即高于40Gb / s）扩大了传输的频谱带宽，并且不会导致与传输光纤相同符号的预色散补偿或负距离预分散补偿。

4. 发明授权

US07266257B1 Reducing crosstalk in free-space optical communications 失效
标题翻译：减少自由空间光通信中的串扰
公开(公告)号：US07266257B1
公开(公告)日：2007-09-04
申请号：US11485091
申请日：2006-07-12
申请人： Aref Chowdhury , Gregory Raybon
发明人： Aref Chowdhury , Gregory Raybon
IPC分类号： G02F1/035 , H04B10/00
CPC分类号： H04B10/118 , H04B10/1121
摘要： An optical transmitter includes a modulator, a dispersion adjustment module, and an optical amplifier. The optical transmitter is configured to transmit optical pulses over a free-space optical communication channel. The modulator is configured to produce an optical carrier that is amplitude and/or phase modulated by data. The dispersion adjustment module is connected between the modulator and the amplifier and is configured to substantially change temporal widths of optical pulses received from the modulator by changing dispersions of the received optical pulses.
摘要翻译：光发射机包括调制器，色散调节模块和光放大器。光发射机被配置为在自由空间光通信信道上传输光脉冲。调制器被配置为产生由数据幅度和/或相位调制的光载波。色散调整模块连接在调制器和放大器之间，并被配置为通过改变接收到的光脉冲的分散来大大改变从调制器接收的光脉冲的时间宽度。

5. 发明申请

US20060269292A1 Reducing crosstalk in optical wavelength converters 有权
公开(公告)号：US20060269292A1
公开(公告)日：2006-11-30
申请号：US11138007
申请日：2005-05-26
申请人： Aref Chowdhury , Gregory Raybon
发明人： Aref Chowdhury , Gregory Raybon
IPC分类号： H04B10/12
CPC分类号： H04B10/2513
摘要： An optical fiber transmission system includes a series of optical fiber transmission spans and one or more all-optical signal processors. The optical fiber transmission spans are connected to form an optical communication path. Each all-optical signal processor directly connects a corresponding adjacent pair of the spans. Each all-optical signal processor includes an optical wavelength converter having input and output ports and a dispersion adjustment module connected to the input port of the optical wavelength converter of the same processor. The dispersion module is also configured to adjust cumulative dispersions of some received optical pulses to be outside of a range for the cumulative dispersions of corresponding optical pulses in the span directly preceding the same processor.

6. 发明授权

US07433117B2 Polarization-diverse optical amplification 有权
标题翻译：极化多样的光学放大
公开(公告)号：US07433117B2
公开(公告)日：2008-10-07
申请号：US11412018
申请日：2006-04-26
申请人： Aref Chowdhury , Christopher Richard Doerr , Gregory Raybon
发明人： Aref Chowdhury , Christopher Richard Doerr , Gregory Raybon
IPC分类号： H01S3/00 , G02B6/00
CPC分类号： H01S5/5009 , H01S3/06712 , H01S3/10007 , H01S3/10023 , H01S3/1301 , H01S3/2308
摘要： A polarization-diverse optical amplifier includes a polarization-sensitive optically active medium and a polarization splitter. The polarization splitter is configured to receive input light, to direct a first polarization component of the received input light to a first optical path segment, and to direct a second polarization component of the received input light to a separate second optical path segment. The active medium has first and second optical ports. The first optical port is at an end of the first optical path segment. The second port is at an end of the second optical path segment. The active medium outputs amplified light from one of the ports in response to receiving the input light at the other of the ports. In a preferred embodiment, the active medium has an internal optical axis, and the polarizations of the first and second components are oriented relative to that axis so that amplification is enhanced. The two optical path segments may include polarization-maintaining optical waveguides.
摘要翻译：偏振分集光放大器包括偏振光敏光学介质和偏振分光器。偏振分离器被配置为接收输入光，以将接收的输入光的第一偏振分量引导到第一光路段，并将接收的输入光的第二偏振分量引导到单独的第二光路段。活动介质具有第一和第二光学端口。第一光口位于第一光路段的一端。第二端口处于第二光路段的一端。响应于在另一个端口处接收输入光，有源介质从一个端口输出放大的光。在优选实施例中，活性介质具有内部光轴，并且第一和第二组分的极化相对于该轴取向，从而增强了放大。两个光路段可以包括偏振保持光波导。

7. 发明申请

US20070253055A1 Polarization-diverse optical amplification 有权
标题翻译：极化多样的光学放大
公开(公告)号：US20070253055A1
公开(公告)日：2007-11-01
申请号：US11412018
申请日：2006-04-26
申请人： Aref Chowdhury , Christopher Doerr , Gregory Raybon
发明人： Aref Chowdhury , Christopher Doerr , Gregory Raybon
IPC分类号： H01S3/00
CPC分类号： H01S5/5009 , H01S3/06712 , H01S3/10007 , H01S3/10023 , H01S3/1301 , H01S3/2308
摘要： A polarization-diverse optical amplifier includes a polarization-sensitive optically active medium and a polarization splitter. The polarization splitter is configured to receive input light, to direct a first polarization component of the received input light to a first optical path segment, and to direct a second polarization component of the received input light to a separate second optical path segment. The active medium has first and second optical ports. The first optical port is at an end of the first optical path segment. The second port is at an end of the second optical path segment. The active medium outputs amplified light from one of the ports in response to receiving the input light at the other of the ports. In a preferred embodiment, the active medium has an internal optical axis, and the polarizations of the first and second components are oriented relative to that axis so that amplification is enhanced. The two optical path segments may include polarization-maintaining optical waveguides.
摘要翻译：偏振分集光放大器包括偏振光敏光学介质和偏振分光器。偏振分离器被配置为接收输入光，以将接收的输入光的第一偏振分量引导到第一光路段，并将接收的输入光的第二偏振分量引导到单独的第二光路段。活动介质具有第一和第二光学端口。第一光口位于第一光路段的一端。第二端口处于第二光路段的一端。响应于在另一个端口处接收输入光，有源介质从一个端口输出放大的光。在优选实施例中，活性介质具有内部光轴，并且第一和第二组分的极化相对于该轴取向，从而增强了放大。两个光路段可以包括偏振保持光波导。

8. 发明授权

US09054807B2 Reducing crosstalk in optical wavelength converters 有权
标题翻译：减少光波长转换器中的串扰
公开(公告)号：US09054807B2
公开(公告)日：2015-06-09
申请号：US11138007
申请日：2005-05-26
申请人： Aref Chowdhury , Gregory Raybon
发明人： Aref Chowdhury , Gregory Raybon
IPC分类号： H04B10/2513
CPC分类号： H04B10/2513
摘要： An optical fiber transmission system includes a series of optical fiber transmission spans and one or more all-optical signal processors. The optical fiber transmission spans are connected to form an optical communication path. Each all-optical signal processor directly connects a corresponding adjacent pair of the spans. Each all-optical signal processor includes an optical wavelength converter having input and output ports and a dispersion adjustment module connected to the input port of the optical wavelength converter of the same processor. The dispersion module is also configured to adjust cumulative dispersions of some received optical pulses to be outside of a range for the cumulative dispersions of corresponding optical pulses in the span directly preceding the same processor.
摘要翻译：光纤传输系统包括一系列光纤传输跨度和一个或多个全光信号处理器。光纤传输跨接连接形成光通信路径。每个全光信号处理器直接连接相应的相邻的一对跨距。每个全光信号处理器包括具有输入和输出端口的光波长转换器和连接到同一处理器的光波长转换器的输入端口的色散调节模块。分散模块还被配置为将一些接收到的光脉冲的累积色散调整在与直接在同一处理器之前的范围内的对应光脉冲的累积色散的范围之外。

9. 发明申请

US20050244159A1 Optical wavelength-conversion 审中-公开
标题翻译：光波长转换
公开(公告)号：US20050244159A1
公开(公告)日：2005-11-03
申请号：US10835753
申请日：2004-04-30
申请人： Aref Chowdhury , Christopher Doerr , Gregory Raybon
发明人： Aref Chowdhury , Christopher Doerr , Gregory Raybon
IPC分类号： G02B6/34 , H04J14/06
CPC分类号： H04J14/02 , H04J14/06
摘要： An apparatus includes an optical wavelength-converter and a polarization splitter. The polarization splitter is configured to receive input and pump light, to direct a first polarization component of the received input and pump light to a first optical path, and to direct a second polarization component of the received input and pump light to a separate second optical path. The optical wavelength-converter has first and second optical ports. The first optical port is at an end of the first optical path. The second port is at an end of the second optical path. The wavelength-converter outputs wavelength-converted light from one of the ports in response to receiving the input and pump light at the other of the ports. The two optical paths may include polarization-maintaining optical waveguides. The polarization splitter and optical paths may be configured to transmit substantially the same pump light intensity to the two optical ports.
摘要翻译：一种装置包括光波长转换器和偏振分离器。偏振分离器被配置为接收输入和泵浦光，以将接收到的输入和泵浦光的第一偏振分量引导到第一光路，并且将接收的输入和泵浦光的第二偏振分量引导到单独的第二光学路径。光波长转换器具有第一和第二光端口。第一光口位于第一光路的一端。第二端口处于第二光路的一端。响应于接收另一个端口处的输入和泵浦光，波长转换器从一个端口输出波长转换的光。两个光路可以包括偏振保持光波导。偏振分离器和光路可以被配置为将基本相同的泵浦光强度传输到两个光学端口。

10. 发明授权

US06556323B1 Demultiplexing and clock-recovery circuit 有权
标题翻译：解复用和时钟恢复电路
公开(公告)号：US06556323B1
公开(公告)日：2003-04-29
申请号：US09505328
申请日：2000-02-16
申请人： Benny Peter Mikkelsen , Gregory Raybon
发明人： Benny Peter Mikkelsen , Gregory Raybon
IPC分类号： H04B1000
CPC分类号： H04B10/67 , H04B10/66 , H04J14/08 , H04L7/0075
摘要： An optical element for simultaneously retrieving the tributary data rate and the clock frequency from the line rate of an OTDM signal. The demultiplexing and clock recovery principle is based on injection locking of a high-Q-filtered and high gain loop with a variable phase delay and an EA-modulator with high non-linear response, i.e., absorption verses applied voltage. A modulator that is preferably an EA-modulator, an amplifier preferably an erbium doped fiber amplifier (“EDFA”), a base band receiver, an electronic amplifier, a high-Q filter, and a variable phase delay are arranged in a loop to provide an oscillator for simultaneously retrieving tributary data rate and clock frequency.
摘要翻译：一种光学元件，用于从OTDM信号的线路速率同时检索支路数据速率和时钟频率。解复用和时钟恢复原理基于具有可变相位延迟的高Q滤波和高增益环的注入锁定以及具有高非线性响应的EA调制器，即吸收与施加的电压的相乘。优选地，EA调制器，放大器优选掺铒光纤放大器（“EDFA”），基带接收器，电子放大器，高Q滤波器和可变相位延迟的调制器循环到提供一个振荡器，用于同时检索支路数据速率和时钟频率。

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