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61. 发明授权

US08135287B2 100 Gbit/s OFDM optical signal generation 有权
标题翻译： 100 Gbit / s OFDM光信号产生
公开(公告)号：US08135287B2
公开(公告)日：2012-03-13
申请号：US12183381
申请日：2008-07-31
申请人： Jianjun Yu , Ting Wang
发明人： Jianjun Yu , Ting Wang
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04J14/06 , H04B10/5165 , H04B10/532 , H04B10/548 , H04J14/002 , H04L5/0014 , H04L27/2627 , H04L27/2697
摘要： A method includes modulating lightwaves to provide first and second OFDM signal sidebands at a first polarization direction and first and second OFDM signal sidebands at a second polarization direction, and combining sidebands that are oppositely positioned and joined from the first and second OFDM signal sidebands at each polarization direction to provide a polarization multiplexing OFDM signal.
摘要翻译：一种方法包括调制光波以在第一偏振方向提供第一和第二OFDM信号边带，以及在第二极化方向上提供第一和第二OFDM信号边带，并且组合在每一个处与第一和第二OFDM信号边带相对地定位和连接的边带偏振方向，以提供偏振复用OFDM信号。

62. 发明授权

US08064775B2 Generation of at least 100 Gbit/s optical transmission 有权
标题翻译：产生至少100Gbit / s的光传输
公开(公告)号：US08064775B2
公开(公告)日：2011-11-22
申请号：US12183368
申请日：2008-07-31
申请人： Jianjun Yu , Lei Xu , Philip Ji , Ting Wang , Dayou Qian , Yutaka Yano
发明人： Jianjun Yu , Lei Xu , Philip Ji , Ting Wang , Dayou Qian , Yutaka Yano
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04B10/5165 , H04B10/54 , H04B10/548 , H04L27/2601
摘要： A method includes generating at least two lightwave carriers from a lightwave source, the carriers having a wavelength spacing, creating an up-subchannel and a down-subchannel orthogonal to one another and spaced apart based on the fixed wavelength spacing from modulations of the lightwave carriers according to respective up-converted OFDM signals that are carrier suppressed, and combining one lightwave from the up-subchannel and one lightwave from the down-subchannel into an optical channel for transmission over an optical fiber.
摘要翻译：一种方法包括从光波源产生至少两个光波载波，所述载波具有波长间隔，产生基于与光波载波调制的固定波长间隔彼此正交并且间隔开的向上子信道和下信道根据载波抑制的各自的上变换的OFDM信号，并将来自上信道的一个光波和来自下信道的一个光波组合成光信道以在光纤上传输。

63. 发明申请

US20080279556A1 Wavelength Division Multiplexed Passive Optical Network 有权
标题翻译：波分复用无源光网络
公开(公告)号：US20080279556A1
公开(公告)日：2008-11-13
申请号：US12115046
申请日：2008-05-05
申请人： Jianjun Yu , Yuanqiu Luo , Junqiang Hu , Ting Wang
发明人： Jianjun Yu , Yuanqiu Luo , Junqiang Hu , Ting Wang
IPC分类号： H04J14/02
CPC分类号： H04B10/2587 , H04J14/0282
摘要： Data is transmitted between a central office and customer premises by a wavelength division multiplex passive optical network. Two laser beams with separate wavelengths are transmitted from the central office to an optical network unit in the customer premises. Both laser beams carry downstream data. One laser beam is intensity modulated by on/off keying. The other laser beam is phase modulated by differential phase shift keying, which maintains a constant optical intensity. The first laser beam is received by a first optical receiver, which demodulates the first downstream data. The second laser beam is split in two. One laser beam is sent to a second optical receiver, which demodulates the second downstream data. The other laser beam is sent to a reflective semiconductor amplifier, which modulates the beam with upstream data and transmits the beam back to a receiver in the central optical system.
摘要翻译：数据通过波分复用无源光网络在中心局和客户驻地之间传输。具有分离波长的两个激光束从中心局传输到客户驻地的光网络单元。两个激光束都携带下行数据。一个激光束通过开/关键控进行强度调制。其他激光束通过差分相移键控进行相位调制，保持恒定的光强度。第一激光束由第一光接收器接收，第一光接收器解调第一下行数据。第二激光束分为两部分。一个激光束被发送到第二光接收器，其解调第二下行数据。另一个激光束被发送到反射半导体放大器，该反射半导体放大器利用上行数据对光束进行调制，并将光束传送回中央光学系统中的接收器。

64. 发明申请

US20070292143A1 Optical Re-Modulation in DWDM Radio-Over-Fiber Network 审中-公开
标题翻译： DWDM无线光纤网络中的光重新调制
公开(公告)号：US20070292143A1
公开(公告)日：2007-12-20
申请号：US11761021
申请日：2007-06-11
申请人： Jianjun Yu , Lei Xu , Ting Wang
发明人： Jianjun Yu , Lei Xu , Ting Wang
IPC分类号： H04B10/04
CPC分类号： H04B10/25754
摘要： An apparatus includes multiple signal paths for optically converting an optical signal to multiples of the optical signal at different respective carrier frequencies for reducing interference between wireless transmissions of the multiples of the optical signal. Preferably, the converting includes a first modulator for modulating the optical signal into a first optical carrier and an initial first-order sideband signal with a frequency spacing twice that of the first optical carrier and a first interleaver for separating the first optical carrier and the initial first-order sideband signal. The converting also includes a second phase modulator for modulating the first optical carrier into a second optical carrier and a second first-order sideband signal with a frequency spacing twice that of the second optical carrier.
摘要翻译：一种装置包括多个信号路径，用于将光信号光学地转换成不同相应载波频率处的光信号的倍数，以减少光信号的倍数的无线传输之间的干扰。优选地，转换包括用于将光信号调制成第一光载波的第一调制器和具有两倍于第一光载波的频率间隔的初始一阶边带信号和用于分离第一光载波的初始交织器和初始一阶边带信号。转换还包括用于将第一光载波调制成第二光载波的第二相位调制器和频率间隔是第二光载波的频率间隔的第二一阶边带信号。

65. 发明授权

US08761612B2 16 quadrature amplitude modulation optical signal transmitter 有权
标题翻译： 16正交幅度调制光信号发射机
公开(公告)号：US08761612B2
公开(公告)日：2014-06-24
申请号：US12562260
申请日：2009-09-18
申请人： Jianjun Yu , Ting Wang , Dayou Qian
发明人： Jianjun Yu , Ting Wang , Dayou Qian
IPC分类号： H04B10/00
CPC分类号： H04B10/5053 , H04B10/541
摘要： An optical transmitter includes a dividing optical coupler, a first optical modulator driven by an I component of a first signal and a I component of a second signal for modulating a lightwave, a DC bias of the first optical, a second optical modulator driven by a Q component of the first signal and a Q component of the second signal for modulating a lightwave, a DC bias of the second optical modulator, a phase shifter, and a combining optical coupler for combining the modulated lightwave from the first optical coupler and the phase shifted Q components of the first and second signals for generating a quadrature amplitude modulated signal.
摘要翻译：光发射机包括分光光耦合器，由第一信号的I分量驱动的第一光调制器和用于调制光波的第二信号的I分量，第一光学器件的DC偏置，第二光调制器驱动的第二光调制器第一信号的Q分量和用于调制光波的第二信号的Q分量，第二光调制器的DC偏置，移相器和组合光耦合器，用于组合来自第一光耦合器的调制光波和相位用于产生正交幅度调制信号的第一和第二信号的移位Q分量。

66. 发明授权

US08463121B2 Ultra wide-range frequency offset estimation for digital coherent optical receivers 有权
标题翻译：数字相干光接收机的超宽范围频偏估计
公开(公告)号：US08463121B2
公开(公告)日：2013-06-11
申请号：US12902801
申请日：2010-10-12
申请人： Lei Xu , Shaoliang Zhang , Jianjun Yu , Ting Wang
发明人： Lei Xu , Shaoliang Zhang , Jianjun Yu , Ting Wang
IPC分类号： H04B10/08 , H04B10/06
CPC分类号： H04B10/611 , H04B10/60 , H04B10/6164 , H04B10/6165
摘要： Methods and systems for receiving an optical signal using cascaded frequency offset estimation. Coherently detecting an optical signal includes compensating for a coarse laser frequency offset between a transmitting laser and a local oscillator laser by determining a maximum phase error (MPE) in the optical signal, compensating for a residual laser frequency offset between the transmitting laser and the local oscillator laser, and decoding data stored in the optical signal.
摘要翻译：使用级联频偏估计接收光信号的方法和系统。相干检测光信号包括通过确定光信号中的最大相位误差（MPE）来补偿发射激光器和本地振荡器激光器之间的粗激光频率偏移，补偿发射激光器和局部振荡器之间的残余激光频率偏移振荡器激光器和解码存储在光信号中的数据。

67. 发明授权

US08358936B2 Method and apparatus for an optical duty cycle for an optical digital coherent system 有权
标题翻译：用于光学数字相干系统的光学占空比的方法和装置
公开(公告)号：US08358936B2
公开(公告)日：2013-01-22
申请号：US12562251
申请日：2009-09-18
申请人： Jianjun Yu , Lei Xu , Dayou Qian , Ting Wang
发明人： Jianjun Yu , Lei Xu , Dayou Qian , Ting Wang
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04B10/50
摘要： An optical apparatus includes a quadrature phase shift keying modulator for generating a non-return-to-zero quadrature phase shift keyed NRZ-QPSK signal from a received lightwave, the modulator being driven by a radio frequency RF signal, an intensity modulator for carving the NRZ-QPSK signal to return-to-zero RZ pulses with a different duty cycle than that of the NRZ-QPSK, the intensity modulator being driven by a radio frequency RF clock signal to change the NRZ-QPSK to an RZ-QPSK signal, and an optical filter with a narrow band for filtering the signal from the intensity modulator to increase optical power that is useable by an optical digital coherent detection system.
摘要翻译：光学装置包括：正交相移键控调制器，用于从接收到的光波产生不归零正交相移键控的NRZ-QPSK信号，调制器由射频RF信号驱动;强度调制器，用于雕刻 NRZ-QPSK信号以与NRZ-QPSK的占空比不同的占空比的归零RZ脉冲，强度调制器由射频RF时钟信号驱动，以将NRZ-QPSK改变为RZ-QPSK信号，以及具有窄带的滤光器，用于对来自强度调制器的信号进行滤波，以增加可由光学数字相干检测系统使用的光功率。

68. 发明授权

US08184731B2 Feedback adjustable constellation de-mapper 有权
标题翻译：反馈可调星座去映射器
公开(公告)号：US08184731B2
公开(公告)日：2012-05-22
申请号：US12372378
申请日：2009-02-17
申请人： Dayou Qian , Jianjun Yu , Ting Wang
发明人： Dayou Qian , Jianjun Yu , Ting Wang
IPC分类号： H04L5/12
CPC分类号： H04L27/233
摘要： A system and method to adjust the symbol constellation used to de-map a signal in an optical coherent communications system. A feedback de-mapper adjustment module is configured to compare average Error Vector Magnitude and Bit Error Ratio to a pre-defined table to determine when a constellation de-mapper mismatch occurs. The feedback de-mapper adjustment module then rotates the de-mapper constellation in order to compensate for phase drift.
摘要翻译：一种用于调整用于在光学相干通信系统中去映射信号的符号星座的系统和方法。反馈解映射器调整模块被配置为将平均误差矢量幅度和误码率与预定义的表进行比较，以确定何时发生星座解映射器失配。反馈解映射器调整模块随后旋转去映射器星座以便补偿相位漂移。

69. 发明授权

US07965947B2 Wavelength division multiplexing passive optical network architecture with source-free optical network units 有权
标题翻译：波分复用无源光网络架构与无源光网络单元
公开(公告)号：US07965947B2
公开(公告)日：2011-06-21
申请号：US11867090
申请日：2007-10-04
申请人： Jianjun Yu , Yuanqiu Luo , Ting Wang
发明人： Jianjun Yu , Yuanqiu Luo , Ting Wang
IPC分类号： H04B10/04
CPC分类号： H04J14/0282 , H04B10/2587 , H04B10/272
摘要： An optical system and method includes a source-free optical network unit coupled to an optical fiber for receiving an original carrier signal with downstream data over the optical fiber. The optical network unit includes a modulator configured to remodulate the original carrier signal with upstream data to produce an upstream data signal for transmission back down the optical fiber in a direction opposite to a direction in which that original carrier signal was received.
摘要翻译：光学系统和方法包括耦合到光纤的无源光网络单元，用于通过光纤接收具有下行数据的原始载波信号。光网络单元包括调制器，其被配置为用上行数据对原始载波信号进行再调制，以产生上行数据信号，以便在与接收原始载波信号的方向相反的方向上向下传输光纤。

70. 发明申请

US20070166054A1 Optical Communication System and Method for Generating Dark Return-to-Zero and DWDM Optical MM-Wave Generation for ROF Downstream Link Using Optical Phase Modulator and Optical Interleaver 失效
标题翻译：用于通过光相位调制器和光交错器产生ROF下行链路的深度归零和DWDM光学MM波生成的光通信系统和方法
公开(公告)号：US20070166054A1
公开(公告)日：2007-07-19
申请号：US11621765
申请日：2007-01-10
申请人： Jianjun Yu , Lei Xu , Philip Ji , Ting Wang
发明人： Jianjun Yu , Lei Xu , Philip Ji , Ting Wang
IPC分类号： H04B10/04
CPC分类号： H04B10/508 , H04B10/2575 , H04B10/505 , H04J14/02 , H04J14/0256
摘要： A method of generating a dark-RZ pulse in an optical communications system with a dual-arm modulator by setting a direct current bias on the modulator to a specific value such that an output optical power from the modulator achieves a maximum value when the RF signals on the first and second arms of the modulator are off and maintaining the direct current bias at the specific value and applying RF signals to the first and second arms of the modulator and delaying one of the RF signals applied to one of the first and second arms relative to the other of the RF signals such that a dark-RZ pulse is generated with a duty cycle based on the delay. Another aspect of the invention provides a method for generating dense wave division multiplexing (DWDM) optical mm-waves in an optical transmission system by phase modulated DWDM optical signal and applying the phase modulated DWDM optical signal to an input port of an optical interleaver, the optical interleaver having a specified bandwidth to suppress the optical carriers and convert the DWDM optical signal to DWDM optical mm-waves; and amplifying the DWDM optical mm-waves and transmitting the DWDM optical mm-waves over single mode fiber (SMF).
摘要翻译：一种在具有双臂调制器的光通信系统中通过将调制器上的直流偏置设置为特定值来产生暗RZ脉冲的方法，使得来自调制器的输出光功率在RF信号在调制器的第一和第二臂处关闭并将直流偏压保持在特定值并且将RF信号施加到调制器的第一和第二臂并且延迟施加到第一和第二臂之一的RF信号之一相对于RF信号中的另一个，使得以基于延迟的占空比产生暗RZ脉冲。本发明的另一方面提供了一种通过相位调制DWDM光信号在光传输系统中产生密集波分复用（DWDM）光学毫米波的方法，并将相位调制的DWDM光信号应用于光交织器的输入端口，具有指定带宽的光交错器以抑制光载波并将DWDM光信号转换为DWDM光学毫米波; 并放大DWDM光学毫米波，并通过单模光纤（SMF）传输DWDM光学毫米波。

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