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51. 发明授权

US08457503B2 Optical transmitter apparatus 有权
标题翻译：光发射机设备
公开(公告)号：US08457503B2
公开(公告)日：2013-06-04
申请号：US13069611
申请日：2011-03-23
申请人： Yuichi Akiyama
发明人： Yuichi Akiyama
IPC分类号： H04B10/04 , H04B10/50 , H04B10/556
CPC分类号： H04B10/50572 , G02F1/2255 , H04B10/505 , H04B10/5051 , H04B10/5053 , H04B10/50575 , H04B10/50577 , H04B10/5162 , H04B10/5561
摘要： An optical DQPSK modulator comprises a pair of phase modulators. Each of the pair of the phase modulators is provided with first and second driving signals. The first and second driving signals are amplified by first and second amplifiers, respectively. An RZ intensity modulator generates an optical RZ-DQPSK signal from an optical DQPSK signal output from the optical DQPSK modulator. A photodetector generates a monitor signal from the optical RZ-DQPSK signal. A gain adjuster unit adjusts the gains of the first and second amplifiers so as to minimize the power of the monitor signal.
摘要翻译：光DQPSK调制器包括一对相位调制器。一对相位调制器中的每一个具有第一和第二驱动信号。第一和第二驱动信号分别由第一和第二放大器放大。 RZ强度调制器从光DQPSK调制器输出的光DQPSK信号产生光RZ-DQPSK信号。光电检测器从光学RZ-DQPSK信号产生监视信号。增益调节单元调节第一和第二放大器的增益，以便最小化监视信号的功率。

52. 发明授权

US07831155B2 Optical transmission device 有权
标题翻译：光传输装置
公开(公告)号：US07831155B2
公开(公告)日：2010-11-09
申请号：US11819891
申请日：2007-06-29
申请人： Kouichi Masuda , Tomoaki Ohira
发明人： Kouichi Masuda , Tomoaki Ohira
IPC分类号： H04B10/04 , G02F1/03
CPC分类号： H04B10/50572 , H04B10/505 , H04B10/50577 , H04B10/5165
摘要： The present invention provides an optical transmission device 100 capable of solving the problem of an unnecessary residual sideband components to thereby obtain a high-quality optical intensity-modulated signal in a case where an SSB optical modulation section 20 has wavelength dependence and a manufacturing error. In the optical transmission device 100, where the SSB optical modulation section 20 cannot evenly branch the intensity of the optical carrier into two routes of optical waveguide, the amplitude adjusting section 62 adjusts the amplitude of an electric signal that changes the refractive index of the SSB optical modulation section 20 so that the unnecessary sideband component of the optical intensity-modulated signal outputted from the SSB optical modulation section 20 disappears.
摘要翻译：本发明提供一种能够解决不必要的残留边带成分的问题的光传输装置100，从而在SSB光调制部20具有波长依赖性和制造误差的情况下，获得高质量的光强度调制信号。在光传输装置100中，其中SSB光调制部分20不能将光载波的强度均匀地分散到两个光波导路径中，幅度调整部分62调节改变SSB的折射率的电信号的幅度光调制部20，使得从SSB光调制部20输出的光强度调制信号的不必要的边带成分消失。

53. 发明申请

US20100272446A1 CONTROL SYSTEM FOR A POLAR OPTICAL TRANSMITTER 有权
标题翻译：极光发射机的控制系统
公开(公告)号：US20100272446A1
公开(公告)日：2010-10-28
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： H04B10/04
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。

54. 发明申请

US20090232517A1 DITHERLESS OPTICAL MODULATOR CONTROL 有权
标题翻译：无差模光调制器控制
公开(公告)号：US20090232517A1
公开(公告)日：2009-09-17
申请号：US12402693
申请日：2009-03-12
申请人： Joseph P. FARINA , Gregory J. McBrien
发明人： Joseph P. FARINA , Gregory J. McBrien
IPC分类号： H04B10/04 , G02F1/01 , G02F1/21
CPC分类号： H04B10/50575 , H04B10/50572 , H04B10/50577 , H04B10/50593 , H04B10/50595 , H04B10/50597
摘要： A method of controlling the operating parameters of an optical modulator, without using a dither signal, is provided. Past operating parameters are compared to present operating parameters using a quality of modulation signal obtained by cross-correlating the data modulation signal used to drive the optical modulator with the modulated optical signal output from the optical modulator. The quality of modulation signal is used to optimize the operating parameters (e.g., bias point) of the optical modulator, or other operating parameters of the arrangement, such as the modulator drive level, timing alignment, etc.
摘要翻译：提供了一种控制光调制器的工作参数而不使用抖动信号的方法。将过去的操作参数与使用通过将用于驱动光调制器的数据调制信号与从光调制器输出的调制光信号相互相关而获得的调制信号的质量与当前工作参数进行比较。调制信号的质量用于优化光调制器的操作参数（例如，偏置点）或该装置的其它操作参数，例如调制器驱动电平，定时对准等。

55. 发明授权

US07512338B2 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：US07512338B2
公开(公告)日：2009-03-31
申请号：US11503456
申请日：2006-08-11
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 , H04B10/00
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。

56. 发明申请

US20090060528A1 OPTICAL TRANSMITTER 有权
标题翻译：光学发射器
公开(公告)号：US20090060528A1
公开(公告)日：2009-03-05
申请号：US12108089
申请日：2008-04-23
申请人： Shigehiro TAKASHIMA , Takayoshi Fukui , Yoshikuni Uchida , Kazuyoshi Yamaki , Youichi Honzawa
发明人： Shigehiro TAKASHIMA , Takayoshi Fukui , Yoshikuni Uchida , Kazuyoshi Yamaki , Youichi Honzawa
IPC分类号： H04B10/04
CPC分类号： H04B10/505 , G02F1/0123 , G02F1/0327 , G02F1/225 , G02F2001/212 , G02F2202/20 , H04B10/50572 , H04B10/5167
摘要： A technology to automatically control the biasing of an optical duobinary transmitter using a single-drive LN-MZ modulator is provided. A low-frequency signal is amplitude modulated onto a voltage signal input into a Mach-Zehnder optical modulator 22. The optical output from the optical modulator 22 is detected by an optical detection subsystem 30. In a bias control subsystem 40, the low-frequency signal component amplitude modulated onto the electrical signal is detected from the optical output, and a DC bias voltage applied to the optical modulator is controlled such that the low-frequency signal component is either minimized or maximized.
摘要翻译：提供了一种使用单驱动LN-MZ调制器自动控制光双向发射器的偏置的技术。低频信号被调制到输入到马赫 - 策德尔光调制器22的电压信号上。光调制器22的光输出由光检测子系统30检测。在偏置控制子系统40中，低频信号从光输出检测调制到电信号上的信号分量幅度，并且控制施加到光调制器的DC偏置电压，使得低频信号分量被最小化或最大化。

57. 发明申请

US20080080872A1 OPTICAL TRANSMITTER 有权
标题翻译：光学发射器
公开(公告)号：US20080080872A1
公开(公告)日：2008-04-03
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信号源输出信号数据1和数据2。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。检测结果被发送到振幅控制单元22。振幅控制单元22调节驱动器1,2的振幅，使得功率监视器21的检测结果最大。

58. 发明申请

US20080056728A1 OPTICAL TRANSMITTER, OPERATION CONTROLLING METHOD FOR THE SAME, AND RECORDING MEDIUM 有权
标题翻译：光传输器，其操作控制方法和记录介质
公开(公告)号：US20080056728A1
公开(公告)日：2008-03-06
申请号：US11780161
申请日：2007-07-19
申请人： Atsushi KOZATO
发明人： Atsushi KOZATO
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04B10/50572 , H04B10/505 , H04B10/50575 , H04B10/506 , H04B10/564
摘要： An optical transmitter according to an exemplary aspect of the present invention is an optical transmitter that includes a variable-wavelength light source and a modulator for modulating and outputting the output light of the variable-wavelength light source in accordance with data to be transmitted, wherein the optical transmitter includes a control unit for varying the bias voltage of the modulator based on the light output power of the modulator to make feedback control of the light output power of the modulator during switching of the output wavelength of the variable-wavelength light source.
摘要翻译：根据本发明的示例性方面的光发射机是一种光发射机，其包括可变波长光源和调制器，用于根据要传输的数据调制和输出可变波长光源的输出光，其中光发射机包括控制单元，用于基于调制器的光输出功率改变调制器的偏置电压，以便在可变波长光源的输出波长的切换期间对调制器的光输出功率进行反馈控制。

59. 发明申请

US20080002991A1 Optical transmission device 有权
标题翻译：光传输装置
公开(公告)号：US20080002991A1
公开(公告)日：2008-01-03
申请号：US11819891
申请日：2007-06-29
申请人： Kouichi Masuda , Tomoaki Ohira
发明人： Kouichi Masuda , Tomoaki Ohira
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04B10/50572 , H04B10/505 , H04B10/50577 , H04B10/5165
摘要： The present invention provides an optical transmission device 100 capable of solving the problem of an unnecessary residual sideband components to thereby obtain a high-quality optical intensity-modulated signal in a case where an SSB optical modulation section 20 has wavelength dependence and a manufacturing error. In the optical transmission device 100, where the SSB optical modulation section 20 cannot evenly branch the intensity of the optical carrier into two routes of optical waveguide, the amplitude adjusting section 62 adjusts the amplitude of an electric signal that changes the refractive index of the SSB optical modulation section 20 so that the unnecessary sideband component of the optical intensity-modulated signal outputted from the SSB optical modulation section 20 disappears.
摘要翻译：本发明提供一种能够解决不必要的残留边带成分的问题的光传输装置100，从而在SSB光调制部20具有波长依赖性和制造误差的情况下，获得高质量的光强度调制信号。在光传输装置100中，其中SSB光调制部分20不能将光载波的强度均匀地分散到两个光波导路径中，幅度调整部分62调节改变SSB的折射率的电信号的幅度光调制部20，使得从SSB光调制部20输出的光强度调制信号的不必要的边带成分消失。

60. 发明授权

US07200339B1 Method and apparatus for laser line-width compensation 有权
标题翻译：用于激光线宽补偿的方法和装置
公开(公告)号：US07200339B1
公开(公告)日：2007-04-03
申请号：US10411332
申请日：2003-04-11
申请人： Kim Roberts , Maurice O'Sullivan
发明人： Kim Roberts , Maurice O'Sullivan
IPC分类号： H04B10/00 , H04B10/04
CPC分类号： H04B10/58 , H04B10/505 , H04B10/50572 , H04B10/50577 , H04B10/50593 , H04B10/50597
摘要： Laser line-width compensation is performed by detecting noise in an optical signal output by a laser of an optical communications system and controlling a complex modulator to cancel the detected noise. Line-width compensation can be performed for both amplitude and phase noise in the optical signal. Noise measurements are used to compute a complex scalar. The complex scalar is used by a compensation processor to modify an input signal that is to be transmitted by the optical communications system. The modified input signal controls the complex modulator, which modulates the output signal to cancel the noise.
摘要翻译：通过检测由光通信系统的激光器输出的光信号中的噪声来执行激光线宽补偿，并且控制复调制器以消除检测到的噪声。可对光信号中的幅度和相位噪声进行线宽补偿。噪声测量用于计算复杂标量。复数标量由补偿处理器使用以修改由光通信系统传输的输入信号。修改的输入信号控制复调制器，其调制输出信号以消除噪声。

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