公开(公告)号：US09673906B2

公开(公告)日：2017-06-06

申请号：US14960876

申请日：2015-12-07

Applicant: Commissariat a l'energie atomique et aux energies alternatives

Inventor： Sylvie Menezo ,  Olivier Dubray

IPC: H04B10/54 ,  H04B10/516 ,  H04B10/556 ,  G02F1/225 ,  G02F1/015

CPC classification number: H04B10/5161 ,  G02F1/225 ,  G02F2001/0155 ,  G02F2201/126 ,  H04B10/5053 ,  H04B10/506 ,  H04B10/54 ,  H04B10/541 ,  H04B10/5561

Abstract: A photonic device for amplitude modulation of an optical signal, in which a source of the optical signal is coupled to an input waveguide separating through an optical splitter into two arms which recombine through an optical combiner in an output waveguide, wherein the arms are phase shifted by π/2 and each include an electro-optical amplitude modulator. The device may be adapted to modulate a wavelength multiplexed signal.

公开(公告)号：US09664931B1

公开(公告)日：2017-05-30

申请号：US14081962

申请日：2013-11-15

Applicant: HRL LABORATORIES, LLC

Inventor： Daniel Yap ,  James H. Shaffner

IPC: G02F1/035 ,  G02F1/01

CPC classification number: G02F1/011 ,  G02F1/225 ,  G02F1/2255 ,  G02F2201/126

Abstract: An electro-optic modulation structure comprises a first electrode and a second electrode and a first electro-optic strip; wherein the first electrode has a slab portion and a first ridge protruding from the slab portion of the first electrode, and the second electrode has a slab portion and a first ridge protruding from the slab portion of the second electrode, the first protruding ridge of the first electrode and the first protruding ridge of the second electrode being disposed on opposite sides of the first electro-optic strip and both protruding ridges abut the first electro-optic strip.

公开(公告)号：US09606416B2

公开(公告)日：2017-03-28

申请号：US15068334

申请日：2016-03-11

Applicant: Finisar Corporation

Inventor： Gilles P. Denoyer

IPC: G02F1/225 ,  G02B6/14 ,  H04B10/556 ,  G02F1/21

CPC classification number: G02F1/2255 ,  G02B6/14 ,  G02F1/2257 ,  G02F2001/212 ,  G02F2201/126 ,  H04B10/556

Abstract: A differential TWE MZM includes a differential driver, first and second capacitors, and first and second terminations. The differential driver includes a first differential output and a second differential output that collectively form a differential pair. The first differential output is DC coupled to a first arm optical phase shifter of a TWE MZM. The second differential output is DC coupled to a second arm optical phase shifter of the TWE MZM. The first capacitor AC couples the second differential output to the first arm optical phase shifter. The second capacitor AC couples the first differential output to the second arm optical phase shifter. The first and second terminations are coupled to, respectively, the first or second arm optical phase shifter.

公开(公告)号：US09575338B2

公开(公告)日：2017-02-21

申请号：US14642924

申请日：2015-03-10

Applicant: International Business Machines Corporation

Inventor： Douglas M. Gill

IPC: G02F1/025 ,  G02F1/225 ,  G02F1/21 ,  H01L31/18

CPC classification number: G02F1/025 ,  G02F1/2255 ,  G02F1/2257 ,  G02F2001/212 ,  G02F2201/126 ,  H01L31/18

Abstract: A method of modulating an optical input with a radio frequency (RF) signal, an interdigitated modulator, and an electro-optical modulator including the interdigitated modulator are described. The method includes splitting the optical input to a first optical input and a second optical input, traversing a first region and a second region, respectively, with the first optical input and the second optical input, and modulating the first optical input with the RF signal in the first region. The method also includes controlling propagation speed of the RF signal in the first region, controlling RF line impedance in the first region, and controlling an optical loss of the first optical input in the first region.

Abstract translation: 描述了一种利用射频（RF）信号调制光输入的方法，交叉指示调制器和包括交叉指示调制器的电光调制器。 该方法包括将光输入分别与第一光输入和第二光输入分别穿过第一区和第二区的第一光输入和第二光输入，以及用RF信号调制第一光输入 在第一个地区。 该方法还包括控制第一区域中的RF信号的传播速度，控制第一区域中的RF线阻抗，以及控制第一区域中的第一光输入的光损耗。

公开(公告)号：US09459511B2

公开(公告)日：2016-10-04

申请号：US14394313

申请日：2013-04-03

Applicant: NEC Corporation

Inventor： Hidemi Noguchi

IPC: H04B10/25 ,  H04B10/54 ,  G02F1/01 ,  G02F1/225 ,  G02F1/03 ,  G02F1/21

CPC classification number: G02F1/225 ,  G02F1/0121 ,  G02F1/0316 ,  G02F2001/212 ,  G02F2201/126 ,  G02F2201/16 ,  H04B10/25 ,  H04B10/541

Abstract: A Mach-Zehnder type optical modulator according to the present invention is characterized by: that it comprises a beam splitting unit for splitting input light into two component light beams, a first waveguide and a second waveguide for guiding respective ones of the split component light beams, a beam combining unit for combining together the component light beams guided respectively by the first and second waveguides and outputting the combined light, a plurality of electrodes which are formed into electrode pairs as a result of being arranged on the first and second waveguides in a symmetric and parallel manner, and driving units for differentially driving respective ones of the electrode pairs in accordance with the magnitude relationships between the voltage of an input signal and respective ones of threshold voltages set individually for the electrode pairs; and that, by thus being driven differentially, the plurality of electrodes each apply a voltage for modulating the input light to the waveguide on which they are arranged.

Abstract translation: 根据本发明的马赫 - 曾德尔型光调制器的特征在于：它包括用于将输入光分成两个分量光束的分束单元，第一波导和第二波导，用于引导分离成分光束 ，光束组合单元，用于将由第一和第二波导分别引导并分别组合的组分光束组合在一起;多个电极，其形成为电极对，作为布置在第一和第二波导中的结果 以及用于根据输入信号的电压和针对电极对单独设定的各个阈值电压之间的大小关系差分地驱动相应电极对的驱动单元; 并且通过这样驱动差分地，多个电极各自施加用于将输入光调制到其上布置的波导的电压。

公开(公告)号：US20160266464A1

公开(公告)日：2016-09-15

申请号：US14642924

申请日：2015-03-10

Applicant: International Business Machines Corporation

Inventor： Douglas M. Gill

IPC: G02F1/225

CPC classification number: G02F1/025 ,  G02F1/2255 ,  G02F1/2257 ,  G02F2001/212 ,  G02F2201/126 ,  H01L31/18

Abstract: A method of modulating an optical input with a radio frequency (RF) signal, an interdigitated modulator, and an electro-optical modulator including the interdigitated modulator are described. The method includes splitting the optical input to a first optical input and a second optical input, traversing a first region and a second region, respectively, with the first optical input and the second optical input, and modulating the first optical input with the RF signal in the first region. The method also includes controlling propagation speed of the RF signal in the first region, controlling RF line impedance in the first region, and controlling an optical loss of the first optical input in the first region.

公开(公告)号：US20160191169A1

公开(公告)日：2016-06-30

申请号：US15063588

申请日：2016-03-08

Applicant: FUJITSU OPTICAL COMPONENTS LIMITED

Inventor： Masaki SUGIYAMA

IPC: H04B10/532 ,  H04J14/06 ,  G02F1/225

CPC classification number: H04B10/532 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/126 ,  H04J14/06

Abstract: An optical modulator includes a package that accommodates therein a first substrate and a second substrate different from the first substrate, and outside the package, a flexible circuit board. The first substrate has plural optical modulating units disposed thereon in parallel and each including a Mach-Zehnder optical waveguide. Plural first signal line paths corresponding to the optical modulating units are disposed on the second substrate. Plural second signal line paths corresponding to the optical modulating units are disposed on the flexible circuit board. Electrical lengths of the second signal line paths are different from one another. Electrical lengths of signal paths that span from input ends of the second signal line paths corresponding to the optical modulating units to base points on signal electrodes, via the first signal line paths, are equal to one another.

Abstract translation: 一种光学调制器包括：容纳其中的第一基板和不同于第一基板的第二基板以及封装外部的柔性电路板的封装。 第一基板平行配置有多个光调制单元，每一个包括马赫 - 策德尔光波导。 对应于光调制单元的多个第一信号线路径设置在第二基板上。 对应于光调制单元的多个第二信号线路径设置在柔性电路板上。 第二信号线路径的电长度彼此不同。 经由第一信号线路径跨越从与光调制单元对应的第二信号线路径到信号电极上的基点的信号路径的电长度彼此相等。

公开(公告)号：US09316887B2

公开(公告)日：2016-04-19

申请号：US13970804

申请日：2013-08-20

Applicant: FUJITSU OPTICAL COMPONENTS LIMITED

Inventor： Masaki Sugiyama

IPC: G02F1/225

CPC classification number: H04B10/532 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/126 ,  H04J14/06

Abstract: An optical modulator includes a package that accommodates therein a first substrate and a second substrate different from the first substrate, and outside the package, a flexible circuit board. The first substrate has plural optical modulating units disposed thereon in parallel and each including a Mach-Zehnder optical waveguide. Plural first signal line paths corresponding to the optical modulating units are disposed on the second substrate. Plural second signal line paths corresponding to the optical modulating units are disposed on the flexible circuit board. Electrical lengths of the second signal line paths are different from one another. Electrical lengths of signal paths that span from input ends of the second signal line paths corresponding to the optical modulating units to base points on signal electrodes, via the first signal line paths, are equal to one another.

Abstract translation: 一种光学调制器包括：容纳其中的第一基板和与第一基板不同的第二基板的封装，以及封装外部的柔性电路板。 第一基板平行配置有多个光调制单元，每一个包括马赫 - 策德尔光波导。 对应于光调制单元的多个第一信号线路径设置在第二基板上。 对应于光调制单元的多个第二信号线路径设置在柔性电路板上。 第二信号线路径的电长度彼此不同。 经由第一信号线路径跨越从与光调制单元对应的第二信号线路径到信号电极上的基点的信号路径的电长度彼此相等。

公开(公告)号：US09235100B1

公开(公告)日：2016-01-12

申请号：US13602282

申请日：2012-09-03

Applicant: Arkady Kaplan

Inventor： Arkady Kaplan

IPC: H04B10/50 ,  H04B10/556 ,  G02F1/225 ,  H04B10/2543 ,  H04B10/508 ,  H04B10/532 ,  H04B10/54 ,  H04B10/60 ,  H04J14/00 ,  H04J14/02 ,  H04J14/08 ,  H04L7/00

CPC classification number: G02F1/225 ,  B01D43/00 ,  B01D57/02 ,  G02F2201/126 ,  G02F2203/06 ,  H04B10/2543 ,  H04B10/505 ,  H04B10/5053 ,  H04B10/5057 ,  H04B10/50577 ,  H04B10/508 ,  H04B10/532 ,  H04B10/541 ,  H04B10/5561 ,  H04B10/60 ,  H04J14/005 ,  H04J14/02 ,  H04J14/08 ,  H04L7/0075

Abstract: An integrated optical signal Synthesizer and Analyzer for optical communications, each formed on a single chip, is disclosed. The Synthesizer and Analyzer are both design to use a Dual-Polarization Quadrature Amplitude Modulation (QAM) for communication operating at high data rates. A communication system for data transmission having such synthesizer and the analyzer is also disclosed.

Abstract translation: 公开了一种用于光通信的集成光信号合成器和分析器，每个都形成在单个芯片上。 合成器和分析仪都是设计使用双极化正交幅度调制（QAM），以高数据速率进行通信。 还公开了一种具有这种合成器和分析器的用于数据传输的通信系统。

公开(公告)号：US09229250B2

公开(公告)日：2016-01-05

申请号：US14043547

申请日：2013-10-01

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Gabriele Minoia ,  Salvatore Galeone ,  Enrico Stefano Temporiti Milani

IPC: H03K19/0175 ,  G02F1/01 ,  H03K19/0185 ,  G02F1/225

CPC classification number: G02F1/0121 ,  G02F1/225 ,  G02F2201/126 ,  H03K19/018521 ,  H03K19/018528

Abstract: A relatively high-speed, high-efficiency CMOS two branch driver core that may operate under relatively low supply voltage may include thin oxide CMOS transistors configured to generate rail-to-rail output swings larger than twice a supply voltage and without exceeding safe operating area limits. Each of the two branches may include two stacked CMOS inverter pairs configured to drive a respective load capacitance coupled between respective CMOS inverter outputs, in phase opposition to the other branch. A pre-driver circuit input with a differential modulating signal may output two synchronous differential voltage drive signals of a swing of half of the supply voltage and DC-shifted by half of the supply voltage with respect to each other and that may be applied to the respective CMOS inverter inputs of the two branches.

Abstract translation: 可以在相对低的电源电压下工作的相对高速，高效率的CMOS两分支驱动器核心可以包括薄氧化物CMOS晶体管，其被配置为产生大于电源电压两倍的轨至轨输出摆幅，并且不超过安全操作区域 限制 两个分支中的每一个可以包括两个堆叠的CMOS反相器对，其被配置为驱动耦合在各个CMOS反相器输出之间的相应负载电容，与另一个分支相反。 具有差分调制信号的预驱动器电路输入可以输出两个同步差分电压驱动信号，该两个同步差分电压驱动信号是电源电压的一半的摆幅，并相对于彼此直流偏移电源电压的一半，并且可以施加到 相应的CMOS反相器输入的两个分支。