公开(公告)号：US20170184941A1

公开(公告)日：2017-06-29

申请号：US15459528

申请日：2017-03-15

Applicant: INPHI CORPORATION

Inventor： Masaki KATO

IPC: G02F1/225 ,  G02F1/025

CPC classification number: G02F1/2257 ,  G02F1/025 ,  G02F2001/212 ,  G02F2201/121 ,  G02F2201/126

Abstract: An apparatus for modulating a beam of light with balanced push-pull mechanism. The apparatus includes a first waveguide comprising a first PN junction on a silicon-on-insulator substrate and a second waveguide comprising a second PN junction on the silicon-on-insulator substrate. The second PN junction is a replica of the first PN junction shifted with a distance. The apparatus further includes a first source electrode and a first ground electrode coupled respectively with the first PN junction and a second source electrode and a second ground electrode coupled respectively with the second PN junction. The apparatus additionally includes a third ground electrode disposed near the second PN junction at the distance away from the second ground electrode, wherein the first ground electrode, the second ground electrode, and the third ground electrode are commonly grounded to have both PN junctions subjected to a substantially same electric field varied in ground-source-ground pattern.

公开(公告)号：US09632390B1

公开(公告)日：2017-04-25

申请号：US14640903

申请日：2015-03-06

Applicant: INPHI CORPORATION

Inventor： Masaki Kato

IPC: G02F1/225 ,  H01L31/18 ,  H01L31/0232 ,  G02F1/21

CPC classification number: G02F1/2257 ,  G02F1/025 ,  G02F2001/212 ,  G02F2201/121 ,  G02F2201/126

Abstract: An apparatus for modulating a beam of light with balanced push-pull mechanism. The apparatus includes a first waveguide comprising a first PN junction on a silicon-on-insulator substrate and a second waveguide comprising a second PN junction on the silicon-on-insulator substrate. The second PN junction is a replica of the first PN junction shifted with a distance. The apparatus further includes a first source electrode and a first ground electrode coupled respectively with the first PN junction and a second source electrode and a second ground electrode coupled respectively with the second PN junction. The apparatus additionally includes a third ground electrode disposed near the second PN junction at the distance away from the second ground electrode, wherein the first ground electrode, the second ground electrode, and the third ground electrode are commonly grounded to have both PN junctions subjected to a substantially same electric field varied in ground-source-ground pattern.

公开(公告)号：US20160266416A1

公开(公告)日：2016-09-15

申请号：US14744544

申请日：2015-06-19

Applicant: International Business Machines Corporation

Inventor： Douglas M. Gill

IPC: G02F1/025 ,  H01L31/18 ,  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.

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：US09244327B2

公开(公告)日：2016-01-26

申请号：US14263491

申请日：2014-04-28

Applicant: TERAXION INC.

Inventor： Kelvin Prosyk

IPC: G02F1/035 ,  G02F1/225 ,  G02F1/01 ,  G02F1/21

CPC classification number: G02F1/225 ,  G02F1/0123 ,  G02F2001/212 ,  G02F2201/126 ,  G02F2201/127

Abstract: Mach-Zehnder optical modulators and IQ modulators based on a series push-pull travelling wave electrode are provided. The modulator includes a conductive backplane providing an electrical signal path. One or more voltage control taps are electrically connected to the conductive backplane within an area underneath the travelling wave electrode and provide an equalizing DC control voltage to the conductive backplane. In other variants, a plurality of conductive backplane segments are provided, and at least one voltage control tap is electrically connected to each conductive backplane segment within an area underneath the travelling wave electrode and provides a DC control voltage to the corresponding conductive backplane segment.

Abstract translation: 提供了基于串联推挽行波电极的马赫 - 曾德尔光学调制器和IQ调制器。 调制器包括提供电信号路径的导电背板。 一个或多个电压控制抽头在行波电极下面的区域内电连接到导电背板，并向导电背板提供均衡的直流控制电压。 在其他变型中，提供多个导电背板段，并且至少一个电压控制抽头电连接到在行波电极下面的区域内的每个导电背板段，并向对应的导电底板段提供DC控制电压。

公开(公告)号：US09209509B2

公开(公告)日：2015-12-08

申请号：US14218634

申请日：2014-03-18

Applicant: Cisco Technology, Inc.

Inventor： Kalpendu Shastri ,  Bipin Dama ,  Mark Webster ,  David Piede

IPC: G02B6/12 ,  H01P3/00 ,  G02F1/01 ,  H05K1/02 ,  G02F1/03 ,  G02F1/225

CPC classification number: H01P3/00 ,  G02F1/011 ,  G02F1/0121 ,  G02F1/0327 ,  G02F1/225 ,  G02F1/2255 ,  G02F2201/124 ,  G02F2201/126 ,  H05K1/0245 ,  H05K2201/09245 ,  H05K2201/09254 ,  H05K2201/10121

Abstract: A configuration for routing electrical signals between a conventional electronic integrated circuit (IC) and an opto-electronic subassembly is formed as an array of signal paths carrying oppositely-signed signals on adjacent paths to lower the inductance associated with the connection between the IC and the opto-electronic subassembly. The array of signal paths can take the form of an array of wirebonds between the IC and the subassembly, an array of conductive traces formed on the opto-electronic subassembly, or both.

Abstract translation: 在常规电子集成电路（IC）和光电子组件之间布置电信号的配置被形成为在相邻路径上承载相反信号的信号路径阵列，以降低与IC和IC之间的连接相关联的电感 光电子组件。 信号路径阵列可以采取在IC和子组件之间的引线阵列的形式，形成在光电子组件上的导电迹线阵列，或两者。

公开(公告)号：US20150261059A1

公开(公告)日：2015-09-17

申请号：US14418386

申请日：2013-09-26

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Hiroshi Yamazaki ,  Hiroshi Takahashi ,  Takashi Goh ,  Takashi Saida ,  Kiyofumi Kikuchi

IPC: G02F1/225

CPC classification number: G02F1/225 ,  G02F1/0123 ,  G02F1/035 ,  G02F1/2255 ,  G02F1/2257 ,  G02F2001/212 ,  G02F2201/126 ,  G02F2201/16 ,  G02F2203/19 ,  H04B10/5051 ,  H04B10/588

Abstract: An optical modulation circuit includes: a first Mach-Zehnder modulating portion including a first output port and a second output port, wherein the first Mach-Zehnder modulating portion is push-pull driven by a main signal; a second Mach-Zehnder modulating portion connected to the first output port of the first Mach-Zehnder modulating portion, wherein the second Mach-Zehnder modulating portion is push-pull driven by a correction signal; and an asymmetric light combining portion combining an optical signal outputted from an output port of the second Mach-Zehnder modulating portion with an optical signal outputted from the second output port of the first Mach-Zehnder modulating portion in a light intensity coupling ratio of r to 1-r, wherein an optical path length from the first output port to the asymmetric light combining portion is substantially equal to an optical path length from the second output port to the asymmetric light combining portion.

Abstract translation: 光调制电路包括：第一马赫 - 曾德调制部分，包括第一输出端口和第二输出端口，其中第一马赫 - 策德尔调制部分由主信号驱动; 第二马赫 - 策德尔调制部分，连接到第一马赫 - 策德尔调制部分的第一输出端口，其中第二马赫 - 策德尔调制部分由校正信号驱动; 以及非对称光合成部，其将从所述第二马赫 - 策德尔调制部的输出端口输出的光信号与从所述第一马赫 - 策德尔调制部的所述第二输出端口输出的光信号的光强度耦合比率r 1-r，其中从第一输出端口到非对称光合成部分的光路长度基本上等于从第二输出端口到非对称光合并部分的光路长度。

公开(公告)号：US20140104666A1

公开(公告)日：2014-04-17

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: G02F1/01

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。

公开(公告)号：US20140086523A1

公开(公告)日：2014-03-27

申请号：US13629396

申请日：2012-09-27

Applicant: Bruce A. BLOCK ,  Mauro J. KOBRINSKY ,  Miriam R. RESHOTKO ,  Shawna M. Liff

Inventor： Bruce A. BLOCK ,  Mauro J. KOBRINSKY ,  Miriam R. RESHOTKO ,  Shawna M. Liff

IPC: G02B6/26 ,  H05K13/00 ,  G02F1/035

CPC classification number: G02F1/065 ,  G02F1/225 ,  G02F2201/126 ,  Y10T29/49002

Abstract: EOP-based photonic devices employing coplanar electrodes and in-plane poled chromophores and methods of their manufacture. In an individual EOP-based photonic device, enhanced performance is achieved through in-plane poled chromophores having opposing polarities, enabling, for example, a push-pull optical modulator with reduced operational voltage and switching power relative to a conventional MZ modulator. For a plurality of EOP-based photonic devices, enhanced manufacturability is achieved through a sacrificial interconnect enabling concurrent in-plane poling of many EOP regions disposed on a substrate.

Abstract translation: 采用共面电极和面内极化发色团的基于EOP的光子器件及其制造方法。 在单个基于EOP的光子器件中，通过具有相反极性的面内极化发色团实现了增强的性能，使得例如相对于常规MZ调制器具有降低的操作电压和开关功率的推挽式光调制器。 对于多个基于EOP的光子器件，通过牺牲互连实现增强的可制造性，从而使得能够在布置在衬底上的许多EOP区域同时进行面内极化。

公开(公告)号：US20130163913A1

公开(公告)日：2013-06-27

申请号：US13722400

申请日：2012-12-20

Applicant: COGO OPTRONICS, INC.

Inventor： Kelvin Prosyk

IPC: G02F1/035

CPC classification number: G02F1/035 ,  G02F1/225 ,  G02F2201/126

Abstract: An electrical waveguide transmission device accepts a differential electrical input signal (e.g., S+ and S−) propagating along two separate signal conductors with grounded electrical return paths, and outputs the differential input signal to a series push-pull traveling wave electrode Mach-Zehnder optical modulator over a pair of output conductors that act as a return path for each other and provide a desired characteristic impedance matching that of the Mach-Zehnder optical modulator.

Abstract translation: 电波导传输装置接受沿着具有接地电返回路径的两个分离的信号导体传播的差分电输入信号（例如，S +和S），并将差分输入信号输出到串联推挽行波电极马赫 - 策德尔 调制器通过一对输出导体，其作为彼此的返回路径，并提供与马赫 - 曾德尔光调制器匹配的所需特性阻抗。

公开(公告)号：US08358891B2

公开(公告)日：2013-01-22

申请号：US12747953

申请日：2008-11-20

Applicant: Takanori Shimizu ,  Masafumi Nakada

Inventor： Takanori Shimizu ,  Masafumi Nakada

IPC: G02B6/26 ,  G02B6/10

CPC classification number: G02F1/035 ,  G02F2001/212 ,  G02F2201/066 ,  G02F2201/126 ,  G02F2203/15

Abstract: There is provided a waveguide type optical device whose parasitic capacitance is reduced to allow an increase in signal transmission speed. Bottom electrode 41 is formed on substrate 2, bottom cladding 51 is formed on bottom electrode 41, and bottom core 62 is formed on bottom cladding 51. Top core 61 is formed on bottom core 62, top cladding 53 is formed on top core 61, and top electrode 42 is formed on top cladding 53. Two sides of top core 61 and bottom core 62 are covered with side cladding layer 52. Vertically overlapping portions of top electrode 42 and bottom electrode 41 are located almost at a same place as a region for a core layer composed of top core 61 and bottom core 62. The width of one from among top core 61 and bottom core 62 is satisfying a single mode condition, and the width of the other is almost equal to or more than the width of a field distribution.

Abstract translation: 提供了一种其寄生电容减小以允许信号传输速度增加的波导型光学器件。 底部电极41形成在基板2上，底部包层51形成在底部电极41上，底部芯62形成在底部包层51上。顶部芯61形成在底部芯62上，顶部包层53形成在顶部芯61上， 并且顶部电极42形成在顶部包层53上。顶部芯61和底部芯62的两侧被侧包层52覆盖。顶部电极42和底部电极41的垂直重叠的部分几乎位于与区域 用于由顶芯61和底芯62组成的芯层。顶芯61和底芯62之一的宽度满足单模状态，另一个的宽度几乎等于或大于 一个现场分配。