公开(公告)号：US20080253768A1

公开(公告)日：2008-10-16

申请号：US12060351

申请日：2008-04-01

Applicant: Jianjun Yu ,  Philip Nan Ji ,  Lei Xu ,  Ting Wang

Inventor： Jianjun Yu ,  Philip Nan Ji ,  Lei Xu ,  Ting Wang

IPC: H04J14/00

CPC classification number: H04J14/0227 ,  H04B10/5165 ,  H04B10/54 ,  H04B10/5561 ,  H04J14/0246 ,  H04J14/0279 ,  H04L5/0005 ,  H04L5/0044 ,  H04L5/0053 ,  H04L27/02

Abstract: Optical packets are generated by generating a first optical beam with a first wavelength and a second optical beam with a second optical beam. The first optical beam is modulated with a payload signal and then filtered to reduce the bandwidth of the signal. The second optical beam is modulated with a label signal. The filtered modulated first optical beam and modulated second optical beam are combined to generate a dual-wavelength optical beam.

Abstract translation: 通过产生具有第一波长的第一光束和具有第二光束的第二光束来产生光学分组。 用有效载荷信号调制第一个光束，然后滤波以减少信号的带宽。 用标签信号调制第二光束。 经过滤波的调制的第一光束和调制的第二光束被组合以产生双波长光束。

公开(公告)号：US20070166054A1

公开(公告)日：2007-07-19

申请号：US11621765

申请日：2007-01-10

Applicant: Jianjun Yu ,  Lei Xu ,  Philip Ji ,  Ting Wang

Inventor： Jianjun Yu ,  Lei Xu ,  Philip Ji ,  Ting Wang

IPC: H04B10/04

CPC classification number: H04B10/508 ,  H04B10/2575 ,  H04B10/505 ,  H04J14/02 ,  H04J14/0256

Abstract: 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).

Abstract translation: 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。

公开(公告)号：US08358933B2

公开(公告)日：2013-01-22

申请号：US12562353

申请日：2009-09-18

Applicant: Jianjun Yu ,  Ting Wang

Inventor： Jianjun Yu ,  Ting Wang

IPC: H04B10/00

CPC classification number: H04B10/90 ,  H04B10/25759

Abstract: An optical wireless network includes an optical coupler for diverting received millimeter-wave signals comprised of an optical carrier and second order sidebands into multiple transmission paths; a downstream optical path being one of the multiple transmission paths and including an optical filter for filtering passing through the optical carrier with a single sideband, a converter for converting the optical carrier and single sideband to a corresponding electrical signal for amplification and broadcast transmission from an antenna; and an upstream path being one of the multiple transmission paths and having a filter for passing through the optical carrier only from the mm-wave signals and an intensity modulator driven by data received over the antenna to modulate the optical carrier for optical transmission to a receiving destination.

Abstract translation: 光无线网络包括用于将接收到的由光载波和二阶边带构成的毫米波信号转换成多个传输路径的光耦合器; 下行光路是多个传输路径之一，并且包括用于通过单个边带通过光载波的滤波器的滤光器，用于将光载波和单边带转换为相应的电信号的转换器，用于放大和广播传输 天线; 并且上游路径是多个传输路径中的一个，并且具有仅从mm波信号通过光载波的滤波器和由天线接收的数据驱动的强度调制器，以将用于光传输的光载波调制到接收 目的地。

公开(公告)号：US08260140B2

公开(公告)日：2012-09-04

申请号：US11940419

申请日：2007-11-15

Applicant: Yuanqiu Luo ,  Jianjun Yu ,  Junqiang Hu ,  Lei Xu ,  Philip Nan Ji ,  Ting Wang ,  Milorad Cvijetic

Inventor： Yuanqiu Luo ,  Jianjun Yu ,  Junqiang Hu ,  Lei Xu ,  Philip Nan Ji ,  Ting Wang ,  Milorad Cvijetic

IPC: H04J14/02

CPC classification number: H04J14/0226 ,  H04J14/0232 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J14/0298

Abstract: An optical network component, architecture and method for a wavelength division multiplexed passive optical network includes a band coupler configured to demultiplex first and second wavelength division multiplexed content transmitted from an optical line terminal into a first band signal and a second band signal. An arrayed wavelength grating is configured to receive the first band signal and to further demultiplex the first band signal into different wavelengths to provide a plurality of wavelength signals. An optical splitter is configured to split the second band signal into sub-signals and multiplex the sub-signals with each of the wavelength signals such that the first and second wavelength division multiplexed content is provided on a single wavelength to a user.

Abstract translation: 用于波分复用无源光网络的光网络部件，结构和方法包括：频带耦合器，被配置为将从光线路终端发送的第一和第二波分复用内容解复用为第一频带信号和第二频带信号。 阵列波长光栅被配置为接收第一频带信号并进一步将第一频带信号解复用为不同波长以提供多个波长信号。 光分路器被配置为将第二频带信号分割为子信号，并且将子信号与每个波长信号进行复用，使得第一和第二波分复用内容以单个波长提供给用户。

公开(公告)号：US08023824B2

公开(公告)日：2011-09-20

申请号：US12115046

申请日：2008-05-05

Applicant: Jianjun Yu ,  Yuanqiu Luo ,  Junqiang Hu ,  Ting Wang

Inventor： Jianjun Yu ,  Yuanqiu Luo ,  Junqiang Hu ,  Ting Wang

IPC: H04J14/00 ,  H04B10/00

CPC classification number: H04B10/2587 ,  H04J14/0282

Abstract: 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.

Abstract translation: 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，并将光束传送回中心光学系统中的接收器。

公开(公告)号：US20110085797A1

公开(公告)日：2011-04-14

申请号：US12902801

申请日：2010-10-12

Applicant: Lei Xu ,  Shaoliang Zhang ,  Jianjun Yu ,  Ting Wang

Inventor： Lei Xu ,  Shaoliang Zhang ,  Jianjun Yu ,  Ting Wang

IPC: H04B10/08 ,  H04B10/06

CPC classification number: H04B10/611 ,  H04B10/60 ,  H04B10/6164 ,  H04B10/6165

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07761012B2

公开(公告)日：2010-07-20

申请号：US11621765

申请日：2007-01-10

Applicant: Jianjun Yu ,  Lei Xu ,  Philip Nan Ji ,  Ting Wang

Inventor： Jianjun Yu ,  Lei Xu ,  Philip Nan Ji ,  Ting Wang

IPC: H04B10/04

CPC classification number: H04B10/508 ,  H04B10/2575 ,  H04B10/505 ,  H04J14/02 ,  H04J14/0256

Abstract: 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).

Abstract translation: 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。

公开(公告)号：US20100028001A1

公开(公告)日：2010-02-04

申请号：US12183368

申请日：2008-07-31

Applicant: Jianjun Yu ,  Lei Xu ,  Philip Nan Ji ,  Ting Wang ,  Dayou Qian ,  Yutaka Yano

Inventor： Jianjun Yu ,  Lei Xu ,  Philip Nan Ji ,  Ting Wang ,  Dayou Qian ,  Yutaka Yano

IPC: H04J14/00

CPC classification number: H04B10/5165 ,  H04B10/54 ,  H04B10/548 ,  H04L27/2601

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20090214210A1

公开(公告)日：2009-08-27

申请号：US12183381

申请日：2008-07-31

Applicant: Jianjun Yu ,  Ting Wang

Inventor： Jianjun Yu ,  Ting Wang

IPC: H04J14/06

CPC classification number: H04J14/06 ,  H04B10/5165 ,  H04B10/532 ,  H04B10/548 ,  H04J14/002 ,  H04L5/0014 ,  H04L27/2627 ,  H04L27/2697

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20080279559A1

公开(公告)日：2008-11-13

申请号：US12117347

申请日：2008-05-08

Applicant: Jianjun Yu ,  Dayou Qian ,  Lei Xu ,  Ting Wang

Inventor： Jianjun Yu ,  Dayou Qian ,  Lei Xu ,  Ting Wang

IPC: H04B10/00 ,  H04B10/04

CPC classification number: H04B10/25758

Abstract: A method includes generating an optical millimeter wave signal for modulation of a first data signal, and deriving from the generated optical millimeter wave signal a subsequent light source for modulation of a second data signal. More specifically the generating includes modulating a light wave to a multiple of a frequency of an oscillating signal. Alternatively, the generating includes modulating a data signal mixed with an oscillating signal to a multiple of a frequency of the oscillating signal. The deriving includes modulating a frequency component filtered from a data modulation of the generated optical millimeter wave signal.

Abstract translation: 一种方法包括产生用于调制第一数据信号的光学毫米波信号，以及从所生成的光学毫米波信号中导出用于调制第二数据信号的后续光源。 更具体地，生成包括将光波调制到振荡信号的频率的倍数。 或者，生成包括将与振荡信号混合的数据信号调制为振荡信号的频率的倍数。 导出包括调制从产生的光学毫米波信号的数据调制滤波的频率分量。