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1. 发明授权

US07529484B2 Triplexer transceiver using parallel signal detection 有权
标题翻译：使用并行信号检测的三路收发器
公开(公告)号：US07529484B2
公开(公告)日：2009-05-05
申请号：US11276486
申请日：2006-03-02
申请人： Lei Xu , Lei Zong , Philip Nan Ji , Ting Wang , Yuji Abe
发明人： Lei Xu , Lei Zong , Philip Nan Ji , Ting Wang , Yuji Abe
IPC分类号： H04J14/00 , H04J14/02
CPC分类号： H04J14/0226 , H04B10/40 , H04J14/0232 , H04J14/0247 , H04J14/0252 , H04J14/0282 , H04J14/0298
摘要： An optical triplexer transceiver that utilizes parallel signal detection for use in broadband passive optical networks (B-PONs). The triplexer transceiver includes an optical filter comprising a first port coupled to a laser for receiving upstream optical data signals, a second port for passing the upstream optical data signals to a network, and for receiving combined downstream optical data and video signals from the network, the video signals modulated by subcarrier modulation (SCM), and a third port for communicating the combined downstream optical data and video signals to a photodetector constructed and arranged for simultaneously receiving the combined downstream optical data and video signals and converting the optical data and video signals to electrical signals. A plurality of filters are coupled to the photodetector for separating the combined downstream data and video signals, including a low-pass filter for passing the downstream data signals, and a band-pass filter for passing the video signals. The video signals are coherently detected in a number of stages corresponding to stages of SCM applied to the video signals. The triplexer transceiver is adapted to receive optical video signals that have been subjected first and second stages of SCM to move the spectra of the SCM video signals to a higher frequency range that does not overlap with a frequency range of the baseband data signals.
摘要翻译：一种使用并行信号检测用于宽带无源光网络（B-PON）的光学三重收发器。三重收发器包括光滤波器，其包括耦合到激光器的第一端口用于接收上游光数据信号，用于将上游光数据信号传递到网络的第二端口，以及用于从网络接收组合的下行光数据和视频信号，通过副载波调制（SCM）调制的视频信号和用于将组合的下行光数据和视频信号传送到光电探测器的第三端口，该光电探测器被构造和布置成同时接收组合的下行光数据和视频信号并转换光数据和视频信号到电信号。多个滤波器耦合到光电检测器，用于分离组合的下行数据和视频信号，包括用于通过下行数据信号的低通滤波器和用于传递视频信号的带通滤波器。视频信号在对应于应用于视频信号的单片机的阶段的多个级中被相干检测。三重收发器适于接收已经经历SCM的第一和第二级的光学视频信号，以将SCM视频信号的频谱移动到与基带数据信号的频率范围不重叠的较高频率范围。

2. 发明申请

US20070133987A1 Triplexer Transceiver Using Parallel Signal Detection 有权
标题翻译：使用并行信号检测的三路收发器
公开(公告)号：US20070133987A1
公开(公告)日：2007-06-14
申请号：US11276486
申请日：2006-03-02
申请人： Lei Xu , Lei Zong , Philip Ji , Ting Wang , Yuji Abe
发明人： Lei Xu , Lei Zong , Philip Ji , Ting Wang , Yuji Abe
IPC分类号： H04J14/00
CPC分类号： H04J14/0226 , H04B10/40 , H04J14/0232 , H04J14/0247 , H04J14/0252 , H04J14/0282 , H04J14/0298
摘要： An optical triplexer transceiver that utilizes parallel signal detection for use in broadband passive optical networks (B-PONs). The triplexer transceiver includes an optical filter comprising a first port coupled to a laser for receiving upstream optical data signals, a second port for passing the upstream optical data signals to a network, and for receiving combined downstream optical data and video signals from the network, the video signals modulated by subcarrier modulation (SCM), and a third port for communicating the combined downstream optical data and video signals to a photodetector constructed and arranged for simultaneously receiving the combined downstream optical data and video signals and converting the optical data and video signals to electrical signals. A plurality of filters are coupled to the photodetector for separating the combined downstream data and video signals, including a low-pass filter for passing the downstream data signals, and a band-pass filter for passing the video signals. The video signals are coherently detected in a number of stages corresponding to stages of SCM applied to the video signals. The triplexer transceiver is adapted to receive optical video signals that have been subjected first and second stages of SCM to move the spectra of the SCM video signals to a higher frequency range that does not overlap with a frequency range of the baseband data signals.
摘要翻译：一种使用并行信号检测用于宽带无源光网络（B-PON）的光学三重收发器。三重收发器包括光滤波器，其包括耦合到激光器的第一端口用于接收上游光数据信号，用于将上游光数据信号传递到网络的第二端口，以及用于从网络接收组合的下行光数据和视频信号，通过副载波调制（SCM）调制的视频信号和用于将组合的下行光数据和视频信号传送到光电探测器的第三端口，该光电探测器被构造和布置成同时接收组合的下行光数据和视频信号并转换光数据和视频信号到电信号。多个滤波器耦合到光电检测器，用于分离组合的下行数据和视频信号，包括用于通过下行数据信号的低通滤波器和用于传递视频信号的带通滤波器。视频信号在对应于应用于视频信号的单片机的阶段的多个级中被相干检测。三重收发器适于接收已经经历SCM的第一和第二级的光学视频信号，以将SCM视频信号的频谱移动到与基带数据信号的频率范围不重叠的较高频率范围。

3. 发明授权

US08090271B2 Differential delay receiver using cross-polarization interferometer for PolMux-DPSK system 有权
标题翻译：差分延迟接收机采用PolMux-DPSK系统的交叉偏振干涉仪
公开(公告)号：US08090271B2
公开(公告)日：2012-01-03
申请号：US12236694
申请日：2008-09-24
申请人： Dayou Qian , Ting Wang , Lei Xu , Philip Nan Ji
发明人： Dayou Qian , Ting Wang , Lei Xu , Philip Nan Ji
IPC分类号： H04B10/06
CPC分类号： H04J14/06
摘要： A differential delay detection system and method includes an optical splitter to split an incoming optical signal between a first path and a second path. The first path includes a cross-polarization interferometer configured to separately generate polarization independent outputs using split paths and to generate cross-polarization interference outputs, and a polarization demultiplexer configured to combine the polarization independent outputs and the cross-polarization interference outputs from the cross-polarization interferometer with updated coefficients received from the second path to remove the cross-polarization mixed signals. The second path includes a training signal receiver configured to compute the updated coefficients and output the updated coefficients to the polarization demultiplexer.
摘要翻译：差分延迟检测系统和方法包括：光分路器，用于在第一路径和第二路径之间分离输入光信号。第一路径包括交叉偏振干涉仪，其被配置为使用分离路径分开产生偏振无关的输出并产生交叉极化干扰输出;以及偏振解复用器，被配置为组合来自交叉偏振干涉输出的偏振无关输出和交叉极化干扰输出，偏振干涉仪具有从第二路径接收的更新的系数以去除交叉极化混合信号。第二路径包括被配置为计算更新的系数并将更新的系数输出到偏振解复用器的训练信号接收器。

4. 发明授权

US08064768B2 Intra-channel equalizing optical interleaver 有权
标题翻译：信道内均衡光交织器
公开(公告)号：US08064768B2
公开(公告)日：2011-11-22
申请号：US12128748
申请日：2008-05-29
申请人： Philip Nan Ji , Lei Xu , Ting Wang , Shuji Murakami , Tsutomu Tajima , Yutaka Yano
发明人： Philip Nan Ji , Lei Xu , Ting Wang , Shuji Murakami , Tsutomu Tajima , Yutaka Yano
IPC分类号： H04J14/02
CPC分类号： G02B6/29386 , G02B6/29335 , G02B6/2935 , G02B6/29358 , H04B10/25073 , H04J14/02
摘要： An apparatus includes an interleaver configuration for at least one of combining or separating odd and even channel groups to achieve channel density doubling; and an optical equalizer for suppressing inter symbol interference within the channels to provide intra-channel equalizing in the optical path, the equalizer being integrated into the interleaver. Preferably, optical equalizer and interleaver are integrated together as a single monolithic device, the optical equalizer includes a passband that has a dip in the channel center to achieve a raised-cosine filtering profile in the optical signal path to achieve inter-symbol interference ISI suppression, and the equalizer includes integration into the optical path of the interleaver to realize a monolithic device combining or separating odd and even channel groups to achieve channel density doubling. Preferably, also, the optical equalizer includes a first equalizer with half the depth of required ripple dips at both a first output port and an input port and a second equalizer with half the depth of required ripple dips at a second output port.
摘要翻译：一种装置包括用于组合或分离奇数和偶数信道组中的至少一个的交织器配置，以实现信道密度倍增; 以及光学均衡器，用于抑制信道内的符号间干扰，以在光路中提供信道间均衡，均衡器被集成到交织器中。优选地，光学均衡器和交织器作为单个单片器件集成在一起，光学均衡器包括通道，该通带在信道中心具有下降以在光信号路径中实现升余弦滤波曲线，以实现符号间干扰ISI抑制并且均衡器包括集成到交织器的光路中，以实现组合或分离奇数和偶数信道组的单片设备，以实现信道密度加倍。优选地，光学均衡器还包括第一均衡器，其具有在第一输出端口和输入端口处的所需波纹下降的一半深度，以及在第二输出端口处具有所需纹波下降的一半深度的第二均衡器。

5. 发明授权

US08000604B2 Orthogonal frequency division multiple access (OFDMA) based passive optical network (PON) architecture and its extension to long distance 有权
标题翻译：基于正交频分多址（OFDMA）的无源光网络（PON）架构及其对长距离的扩展
公开(公告)号：US08000604B2
公开(公告)日：2011-08-16
申请号：US12039981
申请日：2008-02-29
申请人： Dayou Qian , Junqiang Hu , Jianjun Yu , Philip Nan Ji , Lei Xu , Ting Wang , Milorad Cvijetic , Toshihiko Kusano
发明人： Dayou Qian , Junqiang Hu , Jianjun Yu , Philip Nan Ji , Lei Xu , Ting Wang , Milorad Cvijetic , Toshihiko Kusano
IPC分类号： H04J14/02
CPC分类号： H04L5/023 , H04J14/0226 , H04J14/0227 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0282 , H04J14/0298 , H04L5/0007
摘要： A passive optical network (PON) device, system and method include an optical line terminal (OLT) receiver configured to receive multiple signals at different wavelengths simultaneously and enable multiple transmitters to operate at the same time during one upstream time slot. The optical line terminal employs Orthogonal Frequency Division Multiple Access (OFDMA) to transparently support a plurality of applications and enable dynamic bandwidth allocation among these applications where the bandwidth is allocated in two dimensional frequency and time space.
摘要翻译：无源光网络（PON）设备，系统和方法包括配置为同时接收不同波长的多个信号的光线路终端（OLT）接收机，并使得多个发射机能够在一个上行时隙同时进行操作。光线路终端使用正交频分多址（OFDMA）来透明地支持多个应用，并且在带宽被分配在二维频率和时间空间中的这些应用中实现动态带宽分配。

6. 发明申请

US20090285577A1 Optical Frontend for Integration of Optical and Wireless Networks 审中-公开
标题翻译：用于光和无线网络集成的光学前端
公开(公告)号：US20090285577A1
公开(公告)日：2009-11-19
申请号：US12119884
申请日：2008-05-13
申请人： Jianjun Yu , Philip Nan Ji , Lei Xu , Ting Wang
发明人： Jianjun Yu , Philip Nan Ji , Lei Xu , Ting Wang
IPC分类号： H04J14/02
CPC分类号： H04J14/0298 , H04J14/02 , H04J14/0282 , H04J14/0286
摘要： Data is transmitted by radio over fiber in a wavelength division multiplex optical transmission system. Data is transmitted over a single optical channel by directly modulating a single wavelength laser with a baseband data signal. Multiple single wavelength laser beams are multiplexed into a single multi-wavelength laser beam. All of the single optical channels are up-converted to RF frequencies by modulating the intensity of the multi-wavelength laser beam with an RF carrier.
摘要翻译：数据通过光纤通过波分复用光传输系统传输。通过用基带数据信号直接调制单个波长激光器，通过单个光通道传输数据。多个单波长激光束被复用成单个多波长激光束。通过用RF载体调制多波长激光束的强度，所有单个光通道被上变频到RF频率。

7. 发明申请

US20080253768A1 High Bit Rate Packet Generation with High Spectral Efficiency in an Optical Network 审中-公开
标题翻译：在光网络中具有高光谱效率的高比特率数据包生成
公开(公告)号：US20080253768A1
公开(公告)日：2008-10-16
申请号：US12060351
申请日：2008-04-01
申请人： Jianjun Yu , Philip Nan Ji , Lei Xu , Ting Wang
发明人： Jianjun Yu , Philip Nan Ji , Lei Xu , Ting Wang
IPC分类号： H04J14/00
CPC分类号： H04J14/0227 , H04B10/5165 , H04B10/54 , H04B10/5561 , H04J14/0246 , H04J14/0279 , H04L5/0005 , H04L5/0044 , H04L5/0053 , H04L27/02
摘要： 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.
摘要翻译：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。

8. 发明申请

US20080240736A1 Inter-Symbol Interference-Suppressed Colorless DPSK Demodulation 审中-公开
标题翻译：符号间干扰抑制无色DPSK解调
公开(公告)号：US20080240736A1
公开(公告)日：2008-10-02
申请号：US11692432
申请日：2007-03-28
申请人： Philip Nan Ji , Lei Xu , Ting Wang , Shuji Murakami , Tsutomu Tajima , Yutaka Yano
发明人： Philip Nan Ji , Lei Xu , Ting Wang , Shuji Murakami , Tsutomu Tajima , Yutaka Yano
IPC分类号： H04B10/06
CPC分类号： H04B10/677
摘要： An optical device includes an interferometer for a received optical differential phase shift keying DPSK signal, and an equalizer integrated with the interferometer in a manner for reducing from optical filtering effects an interference by signal bits of the DPSK signal with signal bits of a contiguous DPSK signal. The interferometer is a Michelson delay interferometer type, but can also be a Mach-Zehnder delay interferometer type on fiber, waveguide or other optical structure. The equalizer is a Fabry-Perot type equalizer, but can be a ring resonator type or a fiber based equalizer.
摘要翻译：光学装置包括用于接收的光学差分相移键控DPSK信号的干涉仪，以及与干涉仪集成的均衡器，以减少光学滤波的方式，利用DPSK信号的信号位与相邻DPSK信号的信号位的干扰。干涉仪是迈克尔逊延迟干涉仪型号，但也可以是光纤，波导或其他光学结构上的马赫 - 曾德延迟干涉仪。均衡器是法布里 - 珀罗型均衡器，但可以是环形谐振器型或基于光纤的均衡器。

9. 发明授权

US08218977B2 Integrated equalizer and Michelson interferometer structure for inter-symbol interference-suppressed colorless DPSK demodulation 有权
标题翻译：集成均衡器和迈克尔逊干涉仪结构，用于符号间干扰抑制无色DPSK解调
公开(公告)号：US08218977B2
公开(公告)日：2012-07-10
申请号：US12731869
申请日：2010-03-25
申请人： Philip Nan Ji , Lei Xu , Ting Wang , Shuji Murakami , Tsutomu Tajima , Yutaka Yano
发明人： Philip Nan Ji , Lei Xu , Ting Wang , Shuji Murakami , Tsutomu Tajima , Yutaka Yano
IPC分类号： H04B10/06
CPC分类号： H04B10/677
摘要： An optical device includes an interferometer for a received optical differential phase shift keying DPSK signal, and an equalizer integrated with the interferometer in a manner for reducing from optical filtering effects an interference by signal bits of the DPSK signal with signal bits of a contiguous DPSK signal. The interferometer is a Michelson delay interferometer type, but can also be a Mach-Zehnder delay interferometer type on fiber, waveguide or other optical structure. The equalizer is a Fabry-Perot type equalizer, but can be a ring resonator type or a fiber based equalizer.
摘要翻译：光学装置包括用于接收的光学差分相移键控DPSK信号的干涉仪，以及与干涉仪集成的均衡器，以减少光学滤波的方式，利用DPSK信号的信号位与相邻DPSK信号的信号位的干扰。干涉仪是迈克尔逊延迟干涉仪型号，但也可以是光纤，波导或其他光学结构上的马赫 - 曾德延迟干涉仪。均衡器是法布里 - 珀罗型均衡器，但可以是环形谐振器型或基于光纤的均衡器。

10. 发明申请

US20080063396A1 Optical Subchannels From a Single Lightwave Source 审中-公开
标题翻译：来自单个光波源的光学子信道
公开(公告)号：US20080063396A1
公开(公告)日：2008-03-13
申请号：US11690926
申请日：2007-03-26
申请人： Jianjun Yu , Lei Xu , Philip Nan Ji , Ting Wang
发明人： Jianjun Yu , Lei Xu , Philip Nan Ji , Ting Wang
IPC分类号： H04B10/24
CPC分类号： H04B10/5561 , H04B10/505 , H04B10/5051 , H04B10/5053 , H04B10/5162 , H04B10/5165
摘要： 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.
摘要翻译：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。

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