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公开(公告)号：US20080205903A1
公开(公告)日：2008-08-28
申请号：US12081733
申请日：2008-04-21
IPC分类号： H04B10/04
CPC分类号： H04B10/5167 , H04B10/505 , H04B10/5055
摘要： An optical transmission system which provides bandwidth restricted optical signal comprises an input terminal (10) for accepting an electrical binary signal, an amplifier (12) for amplifying said electrical binary signal to the level requested for operating an electrical-optical converter (16) such as a Mach Zehnder light modulator, a bandwidth restriction means (14) which is for instance a low pass filter for restricting bandwidth of said electrical binary signal, and an electrical-optical conversion means (16) such as a Mach Zehnder light modulator for converting electrical signal to optical signal. Because of the location of the low pass filter (14) between an output of the amplifier (12) and the Mach Zehnder light modulator (16), the amplifier (12) may operate in saturation region to provide high level output signal enough for operating the Mach Zehnder light modulator, and a signal shaped by the low pass filter (14) is applied to the Mach Zehnder light modulator (16) with excellent waveform. The invention is useful for long distance, large capacity and low cost optical transmission system.
摘要翻译： 提供带宽限制光信号的光传输系统包括用于接受电二进制信号的输入端（10），用于将所述电二进制信号放大到用于操作电 - 光转换器（16）所请求的电平的放大器（12） 作为马赫曾德尔光调制器，带宽限制装置（14），例如用于限制所述电二进制信号的带宽的低通滤波器，以及诸如马赫曾德尔光调制器的电 - 光转换装置（16），用于转换 电信号到光信号。 由于放大器（12）的输出端与马赫曾德尔光调制器（16）之间的低通滤波器（14）的位置，放大器（12）可以在饱和区域中工作，以提供足够的高电平输出信号 马赫曾德尔光调制器和由低通滤波器（14）成形的信号以优异的波形施加到马赫曾德尔光调制器（16）。 本发明对于长距离，大容量和低成本的光传输系统是有用的。
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公开(公告)号：US06559996B1
公开(公告)日：2003-05-06
申请号：US09362310
申请日：1999-07-28
IPC分类号： H04B1004
CPC分类号： H04B10/505 , H04B10/5051 , H04B10/5055 , H04B10/50572 , H04B10/50575 , H04B10/508 , H04B10/5162 , H04B10/5165
摘要： The present invention relates to an optical transmission system which reduces optical signal bandwidth with return-to-zero (RZ) signal.
摘要翻译： 光传输系统技术领域本发明涉及一种利用归零（RZ）信号降低光信号带宽的光传输系统。
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公开(公告)号：US5543952A
公开(公告)日：1996-08-06
申请号：US526277
申请日：1995-09-11
IPC分类号： H04B10/50 , H04B10/508 , H04B10/516 , H04B10/54 , H04B10/04
CPC分类号： H04B10/505 , H04B10/5051 , H04B10/508 , H04B10/5167 , H04B10/541
摘要： In a transmitter side in an optical transmission system, an input binary signal is converted into a duobinary signal, and the duobinary signal is applied to an optical modulation device which provides an optical intensity modulation signal, wherein the optical intensity for a center value of the duobinary signal is a minimum, the optical intensity for the other two values of the duobinary signal is a maximum, and an optical phase for those two values is opposite to each other. In a receiver side, simple direct detection is carried out for receiving optical signal through an optical transmission line to provide a demodulated binary signal. Thus, an original binary signal is recovered without a duobinary decoder and receiver sensitivity degradation. In the optical transmission system, an optical carrier frequency component in a signal spectrum is suppressed, a signal bandwidth of the modulated light is reduced in half to that of a prior art, so an optical transmission system for long distance, high bit rate and large traffic capacity is obtained.
摘要翻译： 在光传输系统的发射机侧，输入二进制信号被转换为双二进制信号，并且双二进制信号被施加到提供光强度调制信号的光调制装置，其中，用于中心值的光强度 双二进制信号是最小的，双二进制信号的其他两个值的光强度是最大的，并且这两个值的光学相位彼此相反。 在接收机侧，进行简单的直接检测，以通过光传输线接收光信号以提供解调的二进制信号。 因此，原始二进制信号被恢复而没有双二进制解码器和接收机灵敏度降级。 在光传输系统中，信号频谱中的光载波频率分量被抑制，调制光的信号带宽减小到现有技术的一半，因此用于长距离，高比特率和大的光传输系统 获得交通容量。
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14.发明申请公开(公告)号：US20140270776A1
公开(公告)日：2014-09-18
申请号：US14009264
申请日：2012-04-26
CPC分类号： H04J14/0238 , H04J14/0204 , H04J14/0209 , H04J14/0212 , H04J14/0213 , H04J14/0217 , H04L27/2697 , H04Q11/0067 , H04Q2011/0086
摘要： An optical communication apparatus, in the sending side, distributes client signals according to destinations and a communication capacity of each destination, electrical-to-optical converts the distributed signals to optical signals having different center frequencies, and multiplexes the optical signals to output, and in the receiving side, the optical communication apparatus divides the wavelength division multiplexed signal to each wavelength (for each sending source), optical-to-electrical converts the divided optical signals to electrical signals, and multiplexes the electrical signals to output. An add/drop port of an optical route switching apparatus includes an input/output port to the optical communication apparatus, and an optical frequency bandwidth is variable according to an optical spectrum width of the optical signal. A network is constructed by using the optical communication apparatus and the optical route switching apparatus.
摘要翻译： 发送侧的光通信装置根据目的地和每个目的地的通信容量分配客户端信号，将分布式信号进行电光转换为具有不同中心频率的光信号，并将光信号复用输出，以及 在接收侧，光通信装置将波分多路复用信号划分为每个波长（对于每个发送源），光对电转换成电信号，并将电信号多路复用为输出。 光路由交换装置的分插口包括到光通信装置的输入/输出端口，并且光频带宽根据光信号的光谱宽度是可变的。 通过使用光通信装置和光路转换装置构成网络。
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15.发明申请公开(公告)号：US20110164620A1
公开(公告)日：2011-07-07
申请号：US13063640
申请日：2009-09-18
申请人： Masahiko Jinno , Hidehiko Takara , Yukio Tsukishima , Kozicki Bartlomiej , Kazushige Yonenaga , Toshihide Yoshimatsu , Takayuki Kobayashi
发明人： Masahiko Jinno , Hidehiko Takara , Yukio Tsukishima , Kozicki Bartlomiej , Kazushige Yonenaga , Toshihide Yoshimatsu , Takayuki Kobayashi
IPC分类号： H04L12/56
CPC分类号： H04J14/0204 , H04J14/0212 , H04J14/0213 , H04J14/0217 , H04J14/0284 , H04J14/0298 , H04L27/2697
摘要： A bandwidth variable communication apparatus includes: a route exchange unit including a route exchange function for switching an output port of a stream signal of one or more wavelengths input from an input port based on both or a part of wavelength and time, and including a bandwidth change function for changing passable frequency bandwidth in a section from the input port to the output port through which the stream signal passes; and a control unit including a control information transmit-receive function for transmitting and receiving control information for both or a part of the route exchange function and the bandwidth change function of the route exchange unit, and including a control function for controlling the route exchange unit based on the control information. All or a part of the input ports and the output ports are connected to other communication apparatuses via transmission routes.
摘要翻译： 带宽可变通信装置包括：路由交换单元，包括路由交换功能，用于基于波长和时间的两个或一部分来切换从输入端口输入的一个或多个波长的流信号的输出端口，并且包括带宽 用于在从输入端口到流信号通过的输出端口的部分中改变通过频带宽度的改变功能; 以及控制单元，其包括控制信息发送接收功能，用于发送和接收用于路由交换功能的两个或一部分的控制信息和路由交换单元的带宽改变功能，并且包括用于控制路由交换单元的控制功能 基于控制信息。 所有或一部分输入端口和输出端口经由传输路由连接到其他通信设备。
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16.发明申请MULTI-FLOW OPTICAL TRANSCEIVER, MULTI-FLOW OPTICAL TRANSPONDER AND MULTI-FLOW OPTICAL NODE 有权多流量光学收发器，多流量光学传输器和多流量光学节点公开(公告)号：US20140126905A1
公开(公告)日：2014-05-08
申请号：US14119359
申请日：2012-07-18
CPC分类号： H04Q11/0003 , H04B10/40 , H04B10/506 , H04B10/516 , H04B10/572 , H04J14/02 , H04J14/0204 , H04J14/0205 , H04J14/021 , H04J14/0212 , H04J14/0224 , H04J14/026 , H04L27/2697 , H04Q11/0005 , H04Q2011/0035
摘要： A multi-flow optical transceiver provided with a plurality of wavelength-tunable light sources, a plurality of optical modulation units which modulates light with an input signal, an optical multiplexing/demultiplexing switch which couples light from at least one of the wavelength-tunable light sources to at least one of the optical modulation units with any power, and an optical coupling unit which couples a plurality of lights, modulated by a plurality of the optical modulation units, to at least one waveguide.
摘要翻译： 一种具有多个波长可调光源的多流量光收发器，用输入信号调制光的多个光调制单元，耦合至少一个波长可调光的光的多路复用/解复用开关 源到具有任何功率的光调制单元中的至少一个;以及光耦合单元，其将由多个光调制单元调制的多个光耦合到至少一个波导。
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17.发明授权公开(公告)号：US08526438B2
公开(公告)日：2013-09-03
申请号：US13063640
申请日：2009-09-18
申请人： Masahiko Jinno , Hidehiko Takara , Yukio Tsukishima , Kozicki Bartlomiej , Kazushige Yonenaga , Toshihide Yoshimatsu , Takayuki Kobayashi
发明人： Masahiko Jinno , Hidehiko Takara , Yukio Tsukishima , Kozicki Bartlomiej , Kazushige Yonenaga , Toshihide Yoshimatsu , Takayuki Kobayashi
IPC分类号： H04L12/28
CPC分类号： H04J14/0204 , H04J14/0212 , H04J14/0213 , H04J14/0217 , H04J14/0284 , H04J14/0298 , H04L27/2697
摘要： A bandwidth variable communication apparatus includes: a route exchange unit including a route exchange function for switching an output port of a stream signal of one or more wavelengths input from an input port based on both or a part of wavelength and time, and including a bandwidth change function for changing passable frequency bandwidth in a section from the input port to the output port through which the stream signal passes; and a control unit including a control information transmit-receive function for transmitting and receiving control information for both or a part of the route exchange function and the bandwidth change function of the route exchange unit, and including a control function for controlling the route exchange unit based on the control information. All or a part of the input ports and the output ports are connected to other communication apparatuses via transmission routes.
摘要翻译： 带宽可变通信装置包括：路由交换单元，包括路由交换功能，用于基于波长和时间的两个或一部分来切换从输入端口输入的一个或多个波长的流信号的输出端口，并且包括带宽 用于在从输入端口到流信号通过的输出端口的部分中改变通过频带宽度的改变功能; 以及控制单元，其包括控制信息发送接收功能，用于发送和接收用于路由交换功能的两个或一部分的控制信息和路由交换单元的带宽改变功能，并且包括用于控制路由交换单元的控制功能 基于控制信息。 所有或一部分输入端口和输出端口经由传输路由连接到其他通信设备。
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18.发明申请公开(公告)号：US20070058988A1
公开(公告)日：2007-03-15
申请号：US10555710
申请日：2005-03-17
申请人： Kazushige Yonenaga
发明人： Kazushige Yonenaga
CPC分类号： H04B10/58 , H04B10/5051 , H04B10/5055 , H04B10/50575 , H04B10/54 , H04B10/66
摘要： An optical transmission system is provided in which the optimum operating point of a Mach-Zehnder interferometer, matched to the optical frequency of the light source on the transmitting side, can be set. The optical receiver (2) has an infinitesimal-modulated signal component detection circuit (222), which uses the signal train output from a balanced detection circuit (221) to detect the infinitesimal-modulated signal component applied to the phase adjustment terminal (201) of an MZI (200) by an infinitesimal-modulated signal oscillation circuit (224); a synchronous detection circuit (223), which synchronously detects the infinitesimal-modulated signals output from the infinitesimal-modulated signal component detection circuit (222) and infinitesimal-modulated signal oscillation circuit (224) and detects the error signal component arising from the shift between the optical signal carrier frequency and the optical frequency characteristic of the MZI (200); and a controller (207), which outputs a control signal to adjust the phase difference between two split optical signals output from the MZI (200) so as to correct the shift amount.
摘要翻译： 提供了一种光传输系统，其中可以设置与发射侧的光源的光频率相匹配的马赫 - 曾德干涉仪的最佳工作点。 光接收器（2）具有无穷小调制信号分量检测电路（222），其使用从平衡检测电路（221）输出的信号串来检测施加到相位调整端子（201）的无穷小调制信号分量， 通过无穷小调制信号振荡电路（224）的MZI（200）; 同步检测电路（223），其同步地检测从无穷小调制信号分量检测电路（222）和无穷小调制信号振荡电路（224）输出的无穷小调制信号，并检测由第二调制信号分量检测电路 MZI（200）的光信号载波频率和光频特性; 以及控制器（207），其输出控制信号以调整从MZI（200）输出的两个分离光信号之间的相位差，以校正偏移量。
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19.发明授权公开(公告)号：US09479282B2
公开(公告)日：2016-10-25
申请号：US14009264
申请日：2012-04-26
CPC分类号： H04J14/0238 , H04J14/0204 , H04J14/0209 , H04J14/0212 , H04J14/0213 , H04J14/0217 , H04L27/2697 , H04Q11/0067 , H04Q2011/0086
摘要： An optical communication apparatus, in the sending side, distributes client signals according to destinations and a communication capacity of each destination, electrical-to-optical converts the distributed signals to optical signals having different center frequencies, and multiplexes the optical signals to output, and in the receiving side, the optical communication apparatus divides the wavelength division multiplexed signal to each wavelength (for each sending source), optical-to-electrical converts the divided optical signals to electrical signals, and multiplexes the electrical signals to output. An add/drop port of an optical route switching apparatus includes an input/output port to the optical communication apparatus, and an optical frequency bandwidth is variable according to an optical spectrum width of the optical signal. A network is constructed by using the optical communication apparatus and the optical route switching apparatus.
摘要翻译： 发送侧的光通信装置根据目的地和每个目的地的通信容量分配客户端信号，将分布式信号进行电光转换为具有不同中心频率的光信号，并将光信号复用输出，以及 在接收侧，光通信装置将波分多路复用信号划分为每个波长（对于每个发送源），光对电转换成电信号，并将电信号多路复用为输出。 光路由交换装置的分插口包括到光通信装置的输入/输出端口，并且光频带宽根据光信号的光谱宽度是可变的。 通过使用光通信装置和光路转换装置构成网络。
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20.发明授权Multi-flow optical transceiver, multi-flow optical transponder and multi-flow optical node 有权多流光收发器，多流光转发器和多流光节点公开(公告)号：US09326049B2
公开(公告)日：2016-04-26
申请号：US14119359
申请日：2012-07-18
CPC分类号： H04Q11/0003 , H04B10/40 , H04B10/506 , H04B10/516 , H04B10/572 , H04J14/02 , H04J14/0204 , H04J14/0205 , H04J14/021 , H04J14/0212 , H04J14/0224 , H04J14/026 , H04L27/2697 , H04Q11/0005 , H04Q2011/0035
摘要： A multi-flow optical transceiver provided with a plurality of wavelength-tunable light sources, a plurality of optical modulation units which modulates light with an input signal, an optical multiplexing/demultiplexing switch which couples light from at least one of the wavelength-tunable light sources to at least one of the optical modulation units with any power, and an optical coupling unit which couples a plurality of lights, modulated by a plurality of the optical modulation units, to at least one waveguide.
摘要翻译： 一种具有多个波长可调光源的多流量光收发器，用输入信号调制光的多个光调制单元，耦合至少一个波长可调光的光的多路复用/解复用开关 源到具有任何功率的光调制单元中的至少一个;以及光耦合单元，其将由多个光调制单元调制的多个光耦合到至少一个波导。
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