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51. 发明申请

US20130142506A1 CLOSED LOOP OPTICAL MODULATION AMPLITUDE CONTROL 有权
标题翻译：闭环光学调制振幅控制
公开(公告)号：US20130142506A1
公开(公告)日：2013-06-06
申请号：US13309951
申请日：2011-12-02
申请人： Jonah Nuttgens
发明人： Jonah Nuttgens
IPC分类号： H04B10/08
CPC分类号： H04B10/504 , H04B10/50572 , H04B10/564
摘要： Systems and methods are provided for an optical modulation feedback circuit. The feedback circuit includes a low frequency comparison circuit configured to receive a monitoring signal generated by an optical detector, the monitoring signal being proportional to an amount of light generated by an optical transmission device that transmits based on a data signal that is received by an optical driver. The comparison circuit is further configured to generate a modulation control feedback signal that is transmitted to the optical driver based on a comparison of a low frequency component of the monitoring signal and a low frequency component of the data signal.
摘要翻译：为光调制反馈电路提供了系统和方法。反馈电路包括：低频比较电路，被配置为接收由光学检测器产生的监测信号，该监测信号与由基于由光学器件接收的数据信号发送的光传输装置产生的光量成比例司机。比较电路还被配置为基于监视信号的低频分量和数据信号的低频分量的比较，生成被发送到光驱动器的调制控制反馈信号。

52. 发明申请

US20120207483A1 Apparatus and Method for Control the Driving Amplitude of Differential Quadrature Phase Shift Keying Transmitter 审中-公开
标题翻译：用于控制差分正交相移键控变送器的驱动幅度的装置和方法
公开(公告)号：US20120207483A1
公开(公告)日：2012-08-16
申请号：US13501595
申请日：2010-06-25
申请人： Ping Cui , Xiaoyu Zhu
发明人： Ping Cui , Xiaoyu Zhu
IPC分类号： H04B10/04
CPC分类号： H04B10/5561 , H04B10/5053 , H04B10/5057 , H04B10/50572 , H04B10/50575
摘要： The present invention discloses an apparatus and a method for controlling a driving amplitude of a DQPSK transmitter. The method includes: a DQPSK modulator modulating an optical signal emitted from a CW and without adding with modulated signal; a modulator feedback control unit is connected with a first bias point, a second bias point and a third bias point and controls the first bias point, the second bias point and the third bias point according to a part of the optical signal modulated by the DQPSK modulator; controlling the driving amplitude of a driver I according to temperature change of the driver I; controlling the driving amplitude of a driver Q according to temperature change of the driver Q. The present invention can be used to simplify complexity of the control circuit of the DQPSK transmitter, and therefore no extra optical signal-to-noise ratio cost would be created.
摘要翻译：本发明公开了一种用于控制DQPSK发射机的驱动振幅的装置和方法。该方法包括：DQPSK调制器，调制从CW发射的光信号，而不加调制信号; 调制器反馈控制单元与第一偏置点，第二偏置点和第三偏置点连接，并且根据由DQPSK调制的光信号的一部分来控制第一偏置点，第二偏置点和第三偏置点调制器根据驾驶员I的温度变化控制驾驶员I的驾驶振幅; 根据驱动器Q的温度变化来控制驱动器Q的驱动振幅。本发明可以用于简化DQPSK发射机的控制电路的复杂度，因此不会产生额外的光信噪比成本。

53. 发明授权

US08145069B2 Optical transmitter 有权
标题翻译：光发射机
公开(公告)号：US08145069B2
公开(公告)日：2012-03-27
申请号：US11740954
申请日：2007-04-27
申请人： Toshiki Tanaka , Takeshi Hoshida , Hisao Nakashima , Yuichi Akiyama
发明人： Toshiki Tanaka , Takeshi Hoshida , Hisao Nakashima , Yuichi Akiyama
IPC分类号： H04B10/04
CPC分类号： H04B10/50572 , H04B10/505 , H04B10/50575 , H04B10/564
摘要： A signal Data1 and Data2 are output from a DQPSK signal source. The output signal is input to the modulator drivers 1 and 2 of the differential output. A drive signal is applied from the drivers 1 and 2 to a modulator, and modulated light is output. An optical coupler 20 branches modulator output, and a power monitor 21 detects the power of the branched light. A detection result is transmitted to an amplitude control unit 22. The amplitude control unit 22 adjusts the amplitude of the drivers 1 and 2 such that the detection result of the power monitor 21 can be the maximum.
摘要翻译：从DQPSK信号源输出信号Data1和Data2。输出信号被输入到差分输出的调制器驱动器1和2。将驱动信号从驱动器1和2施加到调制器，并输出调制光。光耦合器20分支调制器输出，功率监视器21检测分支光的功率。检测结果被发送到幅度控制单元22.振幅控制单元22调节驱动器1和2的振幅，使得功率监视器21的检测结果可以是最大的。

54. 发明授权

US08059970B2 Control system for a polar optical transmitter 有权
标题翻译：极性光发射机的控制系统
公开(公告)号：US08059970B2
公开(公告)日：2011-11-15
申请号：US12830663
申请日：2010-07-06
申请人： James Harley , Douglas McGhan , Mohammad Sotoodeh , Anant Grewal , Mark Hawryluck
发明人： James Harley , Douglas McGhan , Mohammad Sotoodeh , Anant Grewal , Mark Hawryluck
IPC分类号： H04B10/00
CPC分类号： H04B10/58 , H04B10/5053 , H04B10/5055 , H04B10/50572 , H04B10/50575
摘要： A method of controlling a polar optical transmitter comprising a dual-branch Mach-Zehnder (MZ) modulator driven by a pair of independent electrical drive signals. A cost function is provided which defines a relationship between a control parameter of the optical transmitter and a power level of an output optical signal generated by the MZ modulator. A selected component of the electrical drive signals is dithered using a predetermined dither signal. A modulation depth of the output optical signal power level corresponding to the dither signal is detected, and the control parameter adjusted based on the cost function and the detection result.
摘要翻译：一种控制极光学发射机的方法，包括由一对独立电驱动信号驱动的双分支马赫 - 曾德（MZ）调制器。提供了一种成本函数，其定义了光发射机的控制参数与由MZ调制器产生的输出光信号的功率电平之间的关系。电驱动信号的选定分量使用预定的抖动信号进行抖动。检测与抖动信号对应的输出光信号功率电平的调制深度，并根据成本函数和检测结果调整控制参数。

55. 发明申请

US20110026935A1 OPTICAL SIGNAL TRANSMITTER AND METHOD FOR CONTROLLING POLARIZATION MULTIPLEXED OPTICAL SIGNAL 有权
标题翻译：光信号发射机和控制偏振多光信号的方法
公开(公告)号：US20110026935A1
公开(公告)日：2011-02-03
申请号：US12839102
申请日：2010-07-19
申请人： Yuichi Akiyama , Noriaki Mizuguchi
发明人： Yuichi Akiyama , Noriaki Mizuguchi
IPC分类号： H04B10/04
CPC分类号： H04B10/5053 , H04B10/5057 , H04B10/50572 , H04B10/50575 , H04J14/06
摘要： An optical signal transmitter includes: first outer modulator to generate first modulated optical signal, the first outer modulator including a pair of optical paths and a first phase shifter to give phase difference to the pair of optical paths; second outer modulator to generate second modulated optical signal, the second outer modulator including a pair of optical paths and a second phase shifter to give phase difference to the pair of optical paths; combiner to generate polarization multiplexed optical signal by combining the first and second modulated optical signals; phase controller to control the phase difference by the first phase shifter to A−Δφ and control the phase difference by the second phase shifter to A+Δφ; and power controller to control at least one of the first and second outer modulators based on AC component of the polarization multiplexed optical signal.
摘要翻译：光信号发射机包括：第一外调制器，用于产生第一调制光信号，第一外调制器包括一对光路和第一移相器，以给予该对光路的相位差; 第二外调制器以产生第二调制光信号，所述第二外调制器包括一对光路和第二移相器，以向所述一对光路提供相位差; 组合器，通过组合第一和第二调制光信号来产生偏振复用光信号; 相位控制器通过第一移相器将相位差控制为A-＆Dgr;＆phgr; 并将第二移相器的相位差控制为A +＆Dgr;＆phgr;; 以及功率控制器，用于基于偏振复用光信号的AC分量来控制第一和第二外调制器中的至少一个。

56. 发明授权

US07869668B2 Method for generating carrier residual signal and its device 有权
标题翻译：用于产生载波残留信号的方法及其装置
公开(公告)号：US07869668B2
公开(公告)日：2011-01-11
申请号：US10593661
申请日：2004-03-22
申请人： Yoshihiro Hashimoto , Kaoru Higuma , Junichiro Ichikawa , Shingo Mori , Yozo Shoji , Hiroyo Ogawa
发明人： Yoshihiro Hashimoto , Kaoru Higuma , Junichiro Ichikawa , Shingo Mori , Yozo Shoji , Hiroyo Ogawa
IPC分类号： G02F1/01 , G02F1/035
CPC分类号： H04B10/50575 , H04B10/25758 , H04B10/505 , H04B10/5053 , H04B10/50572 , H04B10/50577 , H04B10/5165
摘要： A method for generating a carrier residual signal and its device, in which a heterodyne optical signal used in a photometric field or an optical fiber radio communication field can be stably generated with a simplified structure. The device includes an optical modulating unit that includes a light source generating a light wave having a specific wavelength, and an SSB optical modulator. A light wave emitted from the light source enters into the optical modulating unit. A light wave emitted from the optical modulating unit includes a carrier component related to a zero-order Bessel function and a specific signal component related to a specific high-order Bessel function while suppressing signal components other than the specific signal component related to the specific high-order Bessel function, and a ratio of optical intensity between the carrier component and the specific signal component is set substantially to 1.
摘要翻译：一种用于产生载波残留信号的方法及其装置，其中可以以简化的结构稳定地产生在光度场或光纤无线电通信场中使用的外差光信号。该装置包括光调制单元，其包括产生具有特定波长的光波的光源和SSB光调制器。从光源发射的光波进入光调制单元。从光调制单元发射的光波包括与零阶贝塞尔函数相关的载波分量和与特定高阶贝塞尔函数有关的特定信号分量，同时抑制除了与特定高电平相关的特定信号分量之外的信号分量并且Bessel函数和载波分量与特定信号分量之间的光强度比被设定为1。

57. 发明申请

US20100254715A1 Driving method and driving apparatus for optical modulator, and optical transmitter using same 有权
标题翻译：用于光调制器的驱动方法和驱动装置，以及使用其的光发射机
公开(公告)号：US20100254715A1
公开(公告)日：2010-10-07
申请号：US12659982
申请日：2010-03-26
申请人： Shinji Yamashita , Naoki Hashimoto
发明人： Shinji Yamashita , Naoki Hashimoto
IPC分类号： H04B10/12 , G02F1/01 , G01J1/20
CPC分类号： H04B10/50572
摘要： A driving apparatus supplies a drive signal to an optical modulator corresponding to a phase modulation format, and also, divides a part of an output light from the optical modulator; extracts some optical component of the divided light, which is distant from a carrier frequency by integral multiple of a modulation frequency, to detect a power of the optical component; and feedback controls a duty ratio of the drive signal or a cross-point level thereof so that the detected power approaches a minimum value. Thus, it is possible to stably perform phase modulation with high precision.
摘要翻译：驱动装置将驱动信号提供给对应于相位调制格式的光调制器，并且还分割来自光调制器的输出光的一部分; 提取与调制频率的整数倍的载波频率分离的分光的一部分光学分量，以检测光学部件的功率; 并且反馈控制驱动信号或其交叉点电平的占空比，使得检测到的功率接近最小值。因此，可以以高精度稳定地进行相位调制。

58. 发明授权

US07499653B2 Multiple wavelength photonic oscillator 有权
标题翻译：多波长光子振荡器
公开(公告)号：US07499653B2
公开(公告)日：2009-03-03
申请号：US10786721
申请日：2004-02-24
申请人： Daniel Yap
发明人： Daniel Yap
IPC分类号： H01S3/098 , G02F1/03
CPC分类号： H04B10/506 , G02F2/002 , H04B10/50572 , H04B10/50577 , H04J14/02 , H04J14/0298
摘要： A multi-wavelength photonic oscillator has a plurality of lasers each emitting light at a different frequency. An optical wavelength multiplexer combines the light emitted by the plurality of lasers at an output thereof as a set of optical wavelengths. An optical modulator is arranged in a feedback loop and coupled to receive light at the output of the optical wavelength multiplexer, the feedback loop further including an optical tap for coupling at least a subset of said set of optical wavelengths to at least one optical output of the multi-wavelength photonic modulator; at least one optical channel having an associated photodetector arranged to receive light from the optical tap via the at least one optical channel; and an electronic loop portion coupled to receive output from the at least one associated photodetector and to provide an input for the optical modulator.
摘要翻译：多波长光子振荡器具有多个激光器，每个激光器以不同的频率发光。光学波长多路复用器将其输出处的多个激光器发射的光合成为一组光波长。光学调制器布置在反馈回路中并被耦合以在光学波长多路复用器的输出端处接收光，反馈环路还包括用于将所述一组光波长的至少一个子集耦合到至少一个光学输出的光学抽头多波长光子调制器; 至少一个光通道，其具有相关联的光电检测器，布置成经由所述至少一个光通道接收来自所述光学抽头的光; 以及电子回路部分，其被耦合以接收来自所述至少一个相关联的光电检测器的输出并提供用于所述光学调制器的输入。

59. 发明授权

US07457549B2 Sub signal modulation apparatus, sub signal demodulation apparatus, and sub signal modulation demodulation system 失效
标题翻译：子信号调制装置，副信号解调装置和子信号调制解调系统
公开(公告)号：US07457549B2
公开(公告)日：2008-11-25
申请号：US11211492
申请日：2005-08-26
申请人： Youhei Koganei
发明人： Youhei Koganei
IPC分类号： H04B10/04 , H04B10/12 , H04B10/08 , H04B17/00 , H04J14/02
CPC分类号： H04B10/50572 , H04B10/505 , H04B10/54 , H04B2210/074
摘要： A sub signal modulation apparatus, with the intention of stabilized transmission of a sub signal superimposed on main signal light irrespective of the intensity of the main signal light when used in a general-purpose main signal transmitter, including a sub signal outputting unit; a variable optical attenuator for variably attenuating main signal light, into which the main signal has been modulated, at a response speed lower than ½ of a speed of the main signal; an attenuation determining unit for determining, in accordance with the sub signal output from the sub signal outputting unit, an attenuation of the variable optical attenuator for the main signal light; and a stabilizing controller for controlling the attenuation determining unit such that an amplitude of the attenuation of the variable optical attenuator is stabilized to have a constant ratio to a mean intensity of the main signal light.
摘要翻译：一种副信号调制装置，其特征在于，当在包括副信号输出单元的通用主信号发射机中使用时，与主信号光的强度无关地叠加在主信号光上的子信号的稳定传输; 用于以低于主信号速度的1/2的响应速度可变地衰减主信号已被调制的主信号光的可变光衰减器; 衰减确定单元，用于根据从子信号输出单元输出的子信号确定主信号光的可变光衰减器的衰减; 以及稳定控制器，用于控制所述衰减确定单元，使得所述可变光衰减器的衰减的幅度被稳定为与所述主信号光的平均强度具有恒定的比率。

60. 发明授权

US07391969B2 Method and apparatus for pulse generation and adaptive pulse generation for optical communications 有权
标题翻译：用于光通信的脉冲发生和自适应脉冲发生的方法和装置
公开(公告)号：US07391969B2
公开(公告)日：2008-06-24
申请号：US11616417
申请日：2006-12-27
申请人： Isaac Shpantzer , Israel Smilanski , Jacob B. Khurgin , Vladimir Grigoryan , Pak Shing Cho , Nadejda Reingand , Guy Levy-Yurista , Guoliang Li
发明人： Isaac Shpantzer , Israel Smilanski , Jacob B. Khurgin , Vladimir Grigoryan , Pak Shing Cho , Nadejda Reingand , Guy Levy-Yurista , Guoliang Li
IPC分类号： H04B10/08
CPC分类号： H04B10/5053 , H04B10/25137 , H04B10/2543 , H04B10/505 , H04B10/5051 , H04B10/5057 , H04B10/50572 , H04B10/50577 , H04B10/508 , H04J14/02 , H04J14/08
摘要： One embodiment of the invention relates to producing optical pulses for use on a transmission link. A light source is configured to produce an optical signal. A pulse generator is coupled to the light source. The pulse generator is configured to receive, for a first channel, the optical signal and a clock signal. The pulse generator is also configured to modify the optical signal based on the clock signal to produce an optical pulse having a predetermined pulse shape. The clock signal is associated with the predetermined pulse shape. The predetermined pulse shape being based on a transmission characteristic of the transmission link.
摘要翻译：本发明的一个实施例涉及产生用于传输链路的光脉冲。光源被配置为产生光信号。脉冲发生器耦合到光源。脉冲发生器被配置为针对第一通道接收光信号和时钟信号。脉冲发生器还被配置为基于时钟信号修改光信号以产生具有预定脉冲形状的光脉冲。时钟信号与预定的脉冲形状相关联。预定脉冲形状基于传输链路的传输特性。

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