公开(公告)号：US08064774B2

公开(公告)日：2011-11-22

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

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。

公开(公告)号：US20110081151A1

公开(公告)日：2011-04-07

申请号：US12894508

申请日：2010-09-30

Applicant: Jianjun Yu ,  Ming-Fang Huang ,  Ting Wang

Inventor： Jianjun Yu ,  Ming-Fang Huang ,  Ting Wang

IPC: H04J14/02

CPC classification number: H04J14/02 ,  H04B10/532 ,  H04J14/0298 ,  H04J14/06

Abstract: A high speed orthogonal dense wavelength division multiplexing DWDM signal generator includes a multi-peak continuous wave signal generator responsive to a light source, an optical filter for separating multi-peaks of lightwaves from the generator; and a polarization multiplexing stage responsive to the multi-peaks of lightwaves from the optical filter for providing a polarization multiplexing optical signal. The generator includes a cascaded phase modulator and intensity modulator driven by a repetitive frequency (I) to generate multiple spectral peaks, each peak being modulated by an optical modulator driven by a respective baud rate (f baud/s) electrical signal.

Abstract translation: 高速正交密集波分复用DWDM信号发生器包括响应于光源的多峰连续波信号发生器，用于从发生器分离光波的多峰的滤光器; 以及响应于来自滤光器的光波的多峰响应偏振复用光信号的偏振复用级。 发生器包括由重复频率（I）驱动以产生多个频谱峰值的级联相位调制器和强度调制器，每个峰值由由相应波特率（f baud / s）电信号驱动的光学调制器调制。

公开(公告)号：US20100208853A1

公开(公告)日：2010-08-19

申请号：US12372378

申请日：2009-02-17

Applicant: Dayou Qian ,  Jianjun Yu ,  Ting Wang

Inventor： Dayou Qian ,  Jianjun Yu ,  Ting Wang

IPC: H03D1/04 ,  H03M7/00

CPC classification number: H04L27/233

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100086314A1

公开(公告)日：2010-04-08

申请号：US12562251

申请日：2009-09-18

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

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

IPC: H04B10/04

CPC classification number: H04B10/50

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20090290878A1

公开(公告)日：2009-11-26

申请号：US12125507

申请日：2008-05-22

Applicant: Jianjun Yu ,  Ting Wang

Inventor： Jianjun Yu ,  Ting Wang

IPC: H04J14/00 ,  H04J11/00

CPC classification number: H04L27/2627 ,  H04B10/505 ,  H04B10/5165 ,  H04B10/548 ,  H04L27/2697

Abstract: A method for generating an optical OFDM signal with reduced optical signal to nose ratio requirement includes separating an up-converted OFDM signal into a first part and a second part out of phase with the first part; driving a modulator with the first and second parts of the of the up-converted OFDM signal; and varying a lightwave with the modulator for generating a carrier suppressed OFDM signal having improved receiver sensitivity.

Abstract translation: 一种用于产生具有降低的光信噪比要求的光OFDM信号的方法，包括将上转换的OFDM信号分离成与第一部分异相的第一部分和第二部分; 用上变频OFDM信号的第一和第二部分驱动调制器; 以及用所述调制器改变光波以产生具有改善的接收机灵敏度的载波抑制OFDM信号。

公开(公告)号：US08135287B2

公开(公告)日：2012-03-13

申请号：US12183381

申请日：2008-07-31

Applicant: Jianjun Yu ,  Ting Wang

Inventor： Jianjun Yu ,  Ting Wang

IPC: H04B10/04 ,  H04B10/12

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：US20110286746A1

公开(公告)日：2011-11-24

申请号：US12900220

申请日：2010-10-07

Applicant: Philip Nan Ji ,  Yoshiaki Aono ,  Jianjun Yu ,  Ting Wang ,  Tsutomu Tajima ,  Makoto Shibutani

Inventor： Philip Nan Ji ,  Yoshiaki Aono ,  Jianjun Yu ,  Ting Wang ,  Tsutomu Tajima ,  Makoto Shibutani

IPC: H04J14/02

CPC classification number: H04J14/0217 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0219

Abstract: A method for transponder optical channel selection of optical signals from a transponder aggregator includes choosing wavelength division multiplexing channels to be dropped from a transponder aggregator receiving optical input signals, splitting all dropped wavelength division multiplexing channels into at least one transponder having a coherent receiver and transmitter, and tuning a local oscillator laser of the coherent receiver to a wavelength of one of the all dropped wavelength division multiplexing channels for selecting one of the all dropped wavelength division multiplexing channels.

Abstract translation: 一种用于从应答器聚合器的光信号的应答器光信道选择的方法包括从接收光输入信号的转发器聚合器中选择要丢弃的波分复用信道，将所有丢弃的波分复用信道分解成具有相干接收机和发射机的至少一个应答器 ，并将相干接收机的本地振荡器激光器调谐到所有下降的波分复用信道中的一个的波长，以选择所有丢弃的波分复用信道之一。

公开(公告)号：US08064775B2

公开(公告)日：2011-11-22

申请号：US12183368

申请日：2008-07-31

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

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

IPC: H04B10/04 ,  H04B10/12

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：US20080279556A1

公开(公告)日：2008-11-13

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: H04J14/02

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，并将光束传送回中央光学系统中的接收器。

公开(公告)号：US20080063396A1

公开(公告)日：2008-03-13

申请号：US11690926

申请日：2007-03-26

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

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

IPC: H04B10/24

CPC classification number: H04B10/5561 ,  H04B10/505 ,  H04B10/5051 ,  H04B10/5053 ,  H04B10/5162 ,  H04B10/5165

Abstract: An apparatus includes a generator for obtaining at least two lightwave carriers from a single lightwave source, at least two modulators for selectively varying the lightwave carriers according to respective data signals; and a coupler for combining the modulated lightwave carriers for optical transmission. The generator can be one of an optical carrier suppression or phase modulation. The apparatus can employ a filter for separating the lightwave carriers by a fixed wavelength spacing before selectively varying the lightwave carriers according to the respective data signals. In an exemplary embodiment of the invention, the respective data signals are two 50 Gbit/s differential quadrature phase key DQPSK signals, each 50 Gbit/s DQPSK signal including a first 25 Gbit/s data signal out of phase with a second 25 Gbit/s data signal for selectively varying a respective one of the two lightwave carriers, and the combined modulated lightwave carriers are a 100 Gbit/s DQPSK signal. Preferably, the apparatus includes a modulator for pulse shaping the lightwave carriers.

Abstract translation: 一种装置包括用于从单个光波源获得至少两个光波载波的发生器，至少两个用于根据相应数据信号选择性地改变光波载波的调制器; 以及用于组合用于光传输的调制光波载波的耦合器。 发生器可以是光载波抑制或相位调制之一。 根据相应的数据信号，在选择性地改变光波载波之前，该装置可以采用用于将光波载波分离固定波长间隔的滤波器。 在本发明的示例性实施例中，相应的数据信号是两个50Gbit / s的差分正交相位键DQPSK信号，每个50Gbit / s的DQPSK信号包括与第二25Gbit / s的第二25Gbit / s数据信号异相， 用于选择性地改变两个光波载波中的相应一个的数据信号，并且组合的调制的光波载波是100Gbit / s的DQPSK信号。 优选地，该装置包括用于对光波载波进行脉冲整形的调制器。