公开(公告)号：US08643929B2

公开(公告)日：2014-02-04

申请号：US12685895

申请日：2010-01-12

Applicant: Douglas M. Gill ,  Mahmoud Rasras

Inventor： Douglas M. Gill ,  Mahmoud Rasras

IPC: G02F1/03 ,  G02F1/07 ,  G02F1/00

CPC classification number: G02F1/025 ,  G02F1/218 ,  G02F1/225 ,  G02F2001/212 ,  G02F2201/126 ,  G02F2201/16

Abstract: An apparatus includes an optical splitter, an optical intensity combiner, first and second Mach-Zehnder interferometers, and first and second drive electrodes. The first Mach-Zehnder interferometer connects a first optical output of the optical intensity splitter to a first optical input of the optical intensity combiner. The second Mach-Zehnder interferometer connects a second optical output of the optical intensity splitter to a second optical input of the optical intensity combiner. The first drive electrode is located between and connected to a pair of semiconductor junctions along first internal optical arms of the Mach-Zehnder interferometers. The second drive electrode is located between and connected to a pair of semiconductor junctions along second internal optical arms of the Mach-Zehnder interferometers.

Abstract translation: 一种装置包括光分路器，光强度组合器，第一和第二马赫 - 策德尔干涉仪以及第一和第二驱动电极。 第一马赫 - 策德尔干涉仪将光强度分离器的第一光输出连接到光强度组合器的第一光输入端。 第二马赫 - 策德尔干涉仪将光强度分离器的第二光输出连接到光强度组合器的第二光输入端。 第一驱动电极位于沿着Mach-Zehnder干涉仪的第一内部光学臂的一对半导体结之间并连接到该半导体结。 第二驱动电极位于沿着Mach-Zehnder干涉仪的第二内部光学臂的一对半导体结之间并连接到该半导体结。

公开(公告)号：US20130182992A1

公开(公告)日：2013-07-18

申请号：US13709386

申请日：2012-12-10

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Shingo YAMANAKA

IPC: G02F1/035

CPC classification number: G02F1/035 ,  G02F1/225 ,  G02F2201/126 ,  G02F2201/18

Abstract: A Mach-Zehnder (MZ) modulator made of semiconductor material and a method to drive the MZ-modulator are disclosed. The MZ-modulator includes a pair of arms to vary the phase of the optical beam propagating therein. One of the arms further provides the phase presetter that varies the phase of the optical beam by π. The arms are driven by modulation signals complementary to each other but with the DC bias equal to each other.

Abstract translation: 公开了一种由半导体材料制成的马赫 - 曾德（MZ）调制器和一种驱动MZ调制器的方法。 MZ调制器包括一对臂，以改变在其中传播的光束的相位。 其中一个臂进一步提供相位预调器，其通过pi改变光束的相位。 臂由彼此互补的调制信号驱动，但是DC偏置彼此相等。

公开(公告)号：US20120237160A1

公开(公告)日：2012-09-20

申请号：US13421833

申请日：2012-03-15

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

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

IPC: G02B6/12

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：US20100067840A1

公开(公告)日：2010-03-18

申请号：US12472924

申请日：2009-05-27

Applicant: Masaki SUGIYAMA

Inventor： Masaki SUGIYAMA

IPC: G02F1/035

CPC classification number: G02F1/0356 ,  G02F1/0316 ,  G02F2201/126

Abstract: An electronic device in which a signal electrode has a bent portion. Earth electrodes are formed with the signal electrode between. A width of a gap at the bent portion between the signal electrode and each earth electrode is narrower than a width of a gap at both ends of the bent portion between the signal electrode and each earth electrode.

Abstract translation: 一种信号电极具有弯曲部分的电子装置。 地电极之间形成有信号电极。 信号电极和各接地电极之间的弯曲部分处的间隙的宽度比信号电极和每个接地电极之间的弯曲部分的两端的间隙的宽度窄。

公开(公告)号：US20090067770A1

公开(公告)日：2009-03-12

申请号：US12208696

申请日：2008-09-11

Applicant: Giovanni Gilardi ,  Paolo Milanese ,  Simone Pensa

Inventor： Giovanni Gilardi ,  Paolo Milanese ,  Simone Pensa

IPC: G02F1/035

CPC classification number: G02F1/2255 ,  G02F1/035 ,  G02F2201/126

Abstract: An optical modulator comprises a Z-cut lithium niobate substrate on which is formed a Mach-Zehnder interferometer having two generally parallel waveguides lying beneath a buffer layer of dielectric material. First and second ground electrodes and a hot electrode are disposed on the buffer layer, the first and second ground electrodes being spaced either side of the hot electrode, the hot electrode and the first ground electrode being proximate to at least apart of the respective waveguides. The electrode structure is unsymmetrical in that (a) the hot electrode and the first ground electrode each have a width substantially less than that of the second ground electrode and or (b) the spacing between the first ground and hot electrodes is different from the spacing between the second ground and hot electrodes. whereby a range of chirp values can be obtained. When the spacing between the first ground and hot electrodes is smaller than the spacing between the second ground and hot electrodes, and preferably the hot and first ground electrodes have a width not exceeding 15 .μm, the modulator is capable of operation at frequencies above 10 GHz, possibly up to around 40 GHz.

Abstract translation: 光学调制器包括Z切割的铌酸锂基片，其上形成有马赫 - 曾德尔干涉仪，其具有位于电介质材料的缓冲层之下的两个大致平行的波导。 第一接地电极和第二接地电极和热电极设置在缓冲层上，第一和第二接地电极与热电极的任一侧隔开，热电极和第一接地电极接近相应波导的至少一部分。 电极结构是不对称的，其中（a）热电极和第一接地电极的宽度明显小于第二接地电极的宽度，和（b）第一接地电极和热电极之间的间距不同于间隔 在第二接地和热电极之间。 由此可以获得啁啾值的范围。 当第一接地电极和热电极之间的间隔小于第二接地和热电极之间的间隔时，优选地，热和第一接地电极具有不超过15um的宽度，调制器能够在高于10的频率下操作 GHz，可能高达40 GHz。

公开(公告)号：US20080231933A1

公开(公告)日：2008-09-25

申请号：US11690820

申请日：2007-03-24

Applicant: Christopher DOERR

Inventor： Christopher DOERR

IPC: G02F1/03

CPC classification number: G02F1/225 ,  G02F1/015 ,  G02F2001/0155 ,  G02F2201/126

Abstract: A driving circuit and Mach-Zehnder EAM optical modulator exhibiting negligible chirp that generates a PSK signal when driven by a single drive signal. Two such Mach-Zehnder EAM optical modulators and drive circuits may be configured in parallel, thereby generating DQPSK signals with only two drive signals, one for each individual Mach-Zehnder EAM modulator.

Abstract translation: 驱动电路和马赫 - 曾德EAM光调制器显示出可忽略的啁啾，当由单个驱动信号驱动时产生PSK信号。 两个这样的Mach-Zehnder EAM光调制器和驱动电路可以并联配置，从而产生仅具有两个驱动信号的DQPSK信号，每个单独的Mach-Zehnder EAM调制器一个。

公开(公告)号：US07386196B2

公开(公告)日：2008-06-10

申请号：US10526477

申请日：2003-09-04

Applicant: Timo Aalto ,  Markku Kapulainen ,  Mikko Harjanne ,  Markku Rono

Inventor： Timo Aalto ,  Markku Kapulainen ,  Mikko Harjanne ,  Markku Rono

IPC: G02F1/035

CPC classification number: G02F1/2257 ,  G02F1/0147 ,  G02F1/3133 ,  G02F2201/126

Abstract: A method for controlling an optoelectronic component that includes two waveguides. The refractive index of the first waveguide is changed periodically with a first control signal, the amplitude of which is changed between a first amplitude level and higher second amplitude level. The refractive index of the second waveguide is changed periodically with a second control signal, the amplitude of which is changed between the aforementioned first amplitude level and a lower third amplitude level. When the control signals are on their common first amplitude level, the refractive indices of the waveguides are equal and the phase difference between them is zero. When the first control signal is on the second amplitude level and the second control signal on the third amplitude level, the refractive indices of the waveguides are unequal so that their mutual phase difference has a predetermined target value.

Abstract translation: 一种用于控制包括两个波导的光电子部件的方法。 第一波导的折射率以第一控制信号周期性地改变，第一控制信号的幅度在第一幅度电平和较高的第二幅度电平之间变化。 第二波导的折射率以第二控制信号周期性地改变，第二控制信号的振幅在上述第一幅度电平和较低的第三幅度电平之间变化。 当控制信号处于共同的第一幅度电平时，波导的折射率相等，它们之间的相位差为零。 当第一控制信号处于第二幅度电平并且第三控制信号处于第三幅度电平时，波导的折射率不相等，使得它们的相位差具有预定的目标值。

公开(公告)号：US20060115226A1

公开(公告)日：2006-06-01

申请号：US11233573

申请日：2005-09-23

Applicant: Norikazu Miyazaki ,  Masataka Yokozawa

Inventor： Norikazu Miyazaki ,  Masataka Yokozawa

IPC: G02B6/10

CPC classification number: G02F1/2255 ,  G02F2001/212 ,  G02F2201/126 ,  G02F2202/20

Abstract: The present invention provides an optical modulation element module which is capable of the optical modulation for analog transmission with a low driving voltage and low chirp. An optical modulation element module, in which Mach-Zehnder type optical modulation element 50 having a Mach-Zehnder type waveguide unit having two branched waveguides on a substrate which has electro-optical effect and two modulation electrodes which apply a modulation signal to each branched waveguide, optical input and output units for inputting and outputting a light wave to and from the optical modulation element, and a modulation signal input unit 56 for inputting the modulation signal into the modulation electrodes are placed in a case 51, includes a transformer branching unit 57 in which the modulation signal input unit which corresponds to the two modulation electrodes is formed as one terminal and which divides the modulation signal from the modulation signal input unit into two signals, and applies the divided modulation signals to each modulation electrode.

Abstract translation: 本发明提供一种能够以低驱动电压和低啁啾进行模拟传输的光调制的光调制元件模块。 一种光调制元件模块，其中具有Mach-Zehnder型光调制元件50的Mach-Zehnder型光波导单元在具有电光效应的基板上具有两个分支波导，以及两个调制电极，其对每个分支波导施加调制信号 ，用于向光调制元件输入光和输出光波的光输入和输出单元，以及用于将调制信号输入调制电极的调制信号输入单元56放置在壳体51中，包括变压器分支单元57 其中对应于两个调制电极的调制信号输入单元形成为一个端子，并将调制信号从调制信号输入单元分成两个信号，并将分频的调制信号施加到每个调制电极。

公开(公告)号：US20050157368A1

公开(公告)日：2005-07-21

申请号：US10758808

申请日：2004-01-16

Applicant: Timothy Vang ,  David Scott ,  Elizabeth Kunkee ,  Wenshen Wang

Inventor： Timothy Vang ,  David Scott ,  Elizabeth Kunkee ,  Wenshen Wang

IPC: G02F1/017 ,  G02F1/21 ,  G02F1/225 ,  G02F1/03 ,  G02F1/07

CPC classification number: G02F1/2257 ,  B82Y10/00 ,  B82Y20/00 ,  G02F2001/01791 ,  G02F2001/212 ,  G02F2201/126

Abstract: A Mach-Zehnder modulator that employs quantum dots to provide a push-pull drive operation. The Mach-Zehnder modulator includes a first arm having a first PIN semiconductor device and a second arm having a second PIN semiconductor device, where the intrinsic layers of the PIN devices include a quantum dot structure. A first DC bias signal is applied to one of the PIN devices, and a second DC bias signal is applied to the other PIN device. The first DC bias signal biases the intrinsic layer at an operating voltage where the index of refraction of the intrinsic layer is at a positive portion of an electro-refraction transfer function, and the second DC bias potential biases the intrinsic layer at an operating voltage where the index of refraction of the intrinsic layer is at a negative portion of the transfer function.

Abstract translation: 采用量子点的马赫 - 策德尔（Mach-Zehnder）调制器提供推挽驱动操作。 马赫 - 策德尔调制器包括具有第一PIN半导体器件的第一臂和具有第二PIN半导体器件的第二臂，其中PIN器件的本征层包括量子点结构。 第一DC偏置信号被施加到PIN器件中的一个，并且第二DC偏置信号被施加到另一个PIN器件。 第一DC偏置信号在本征层的折射率处于电折射传递函数的正部分的工作电压下偏置本征层，并且第二DC偏置电位在其工作电压下偏置本征层， 本征层的折射率处于传递函数的负部分。

公开(公告)号：US20050135816A1

公开(公告)日：2005-06-23

申请号：US10892890

申请日：2004-07-15

Applicant: Jin Han ,  Youn Jang ,  Hyun Lee

Inventor： Jin Han ,  Youn Jang ,  Hyun Lee

IPC: H04L27/18 ,  G02F1/01 ,  G02F1/21 ,  G02F1/225 ,  G02F1/00

CPC classification number: G02F1/225 ,  G02F1/0121 ,  G02F2001/212 ,  G02F2201/126

Abstract: The present invention relates to an apparatus and method for performing optical Differential Phase Shift Keying (DPSK) modulation, which transmits a phase difference between adjacent bits as information. The electrically band-limited optical DPSK modulating apparatus includes a light source, a Non-Return-to-Zero (NRZ) signal generator, a pre-coder, an electrical low pass filter, and a phase modulator. The NRZ signal generator generates a NRZ signal. The pre-coder codes the NRZ signal generated by the NRZ signal generator into a differential signal. The low pass filter electrically limits a bandwidth of the differential signal obtained through the pre-coder. The phase modulator modulates an optical signal input from the light source into a DPSK signal using the differential signal having the bandwidth electrically limited by the low pass filter.

Abstract translation: 本发明涉及一种用于执行光差分相移键控（DPSK）调制的装置和方法，其将相邻位之间的相位差作为信息发送。 带电限制的光DPSK调制装置包括光源，非归零（NRZ）信号发生器，预编码器，电低通滤波器和相位调制器。 NRZ信号发生器产生NRZ信号。 预编码器将由NRZ信号发生器产生的NRZ信号编码成差分信号。 低通滤波器电气限制通过预编码器获得的差分信号的带宽。 相位调制器使用具有由低通滤波器电限制的带宽的差分信号，将从光源输入的光信号调制成DPSK信号。