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。

公开(公告)号：US20120014470A1

公开(公告)日：2012-01-19

申请号：US13242073

申请日：2011-09-23

Applicant: Pak Shing Cho ,  Jacob Khurgin ,  Isaac Shpantzer

Inventor： Pak Shing Cho ,  Jacob Khurgin ,  Isaac Shpantzer

IPC: H04L27/20 ,  H04L27/18 ,  H04B10/04

CPC classification number: G02F1/225 ,  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: The method and system are disclosed for automatic feedback control of integrated optical quadrature modulator for generation of optical quaternary phase-shift-keyed signal in coherent optical communications. The method comprises the steps of detecting at least a part of an output optical signal from the QPSK modulator, extracting of a particular portion of the output signal in frequency domain, and processing the signal in frequency domain to optimize the transmission of an optical link. The system and method of optical communications in fiber or free space are disclosed that implement the quadrature data modulator with automatic feedback control.

Abstract translation: 公开了用于在相干光通信中生成光四级相移键控信号的集成光学正交调制器的自动反馈控制的方法和系统。 该方法包括以下步骤：检测来自QPSK调制器的输出光信号的至少一部分，在频域中提取输出信号的特定部分，以及处理频域中的信号以优化光链路的传输。 公开了光纤或自由空间中的光通信的系统和方法，其实现具有自动反馈控制的正交数据调制器。

公开(公告)号：US20110170161A1

公开(公告)日：2011-07-14

申请号：US12685895

申请日：2010-01-12

Applicant: Douglas M. Gill ,  Mahmoud Rasras

Inventor： Douglas M. Gill ,  Mahmoud Rasras

IPC: G02F1/015

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：US07460739B2

公开(公告)日：2008-12-02

申请号：US10527607

申请日：2003-09-09

Applicant: Giovanni Gilardi ,  Paolo Milanese ,  Simone Pensa

Inventor： Giovanni Gilardi ,  Paolo Milanese ,  Simone Pensa

IPC: G02F1/295

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

Abstract: An optical modulator comprises a Z-cut lithium niobate substrate (21) on which is formed a Mach-Zehnder interferometer having two generally parallel waveguides (23, 25) lying beneath a buffer layer of dielectric material (27). First and second ground electrodes (29, 33) and a hot electrode (31) are disposed on the buffer layer (27), the first and second ground electrodes (29, 33) being spaced either side of the hot electrode (31), the hot electrode (31) and the first ground electrode (29) being proximate to at least apart of the respective waveguides (25, 23). 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 (G1) between the first ground and hot electrodes (29, 31) is smaller than the spacing (G2) between the second ground and hot electrodes (33, 31), 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切割的铌酸锂衬底（21），其上形成有马赫 - 曾德尔干涉仪，其具有位于电介质材料（27）的缓冲层下方的两个大致平行的波导（23,25）。 第一和第二接地电极（29,33）和热电极（31）设置在缓冲层（27）上，第一和第二接地电极（29,33）与热电极（31）的任一侧隔开， 热电极（31）和第一接地电极（29）接近相应波导（25,23）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（29,31）之间的间隔（G1）小于第二接地电极和热电极（33,31）之间的间隔（G2）时，优选地，热和第一接地电极的宽度 不超过15um，调制器能够在高于10GHz，可能高达约40GHz的频率下工作。

公开(公告)号：US20080230867A1

公开(公告)日：2008-09-25

申请号：US12150525

申请日：2008-04-29

Applicant: Giovanni Richieri

Inventor： Giovanni Richieri

IPC: H01L27/06

CPC classification number: H01L29/417 ,  G02F2001/0155 ,  G02F2201/126

Abstract: A process for forming an ohmic contact on the back surface of a semiconductor body includes depositing a donor layer on the back surface of the semiconductor body followed by a sintering step to form a shallow intermetallic region capable of forming a low resistance contact with a contact metal.

公开(公告)号：US07082237B2

公开(公告)日：2006-07-25

申请号：US10501807

申请日：2003-01-20

Applicant: Robert Graham Walker ,  Andrew Cannon Carter

Inventor： Robert Graham Walker ,  Andrew Cannon Carter

IPC: G02F1/01 ,  G02F1/35 ,  G02B6/12 ,  G02B6/42 ,  G02B6/26

CPC classification number: G02F1/2257 ,  G02F1/218 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/126 ,  G02F2202/101

Abstract: A Mach-Zehnder interferometer modulator for modulating a beam of laser light includes a pair of separate waveguides through which the laser light is passed after splitting in a splitting zone and after which the light is recombined in a merge zone. The waveguides are formed in a semiconductor material with one of the electrodes of each pair being formed in a doped layer while the other electrode, the top electrode, is a surface metalisation. The doped layer is trenched so that adjacent electrodes in the doped layer are electrically isolated from one another so that one of the electrodes in the doped layer can be connected with a different electrical polarity to the other electrode in the doped layer thereby permitting the connection of the pairs of electrodes in parallel anti-phase mode.

Abstract translation: 用于调制激光束的马赫 - 策德尔干涉仪调制器包括一对分离的波导，激光在分裂区域中分裂后通过该波导通过，之后光在合并区域中重新组合。 波导形成在半导体材料中，每对电极中的一个电极形成在掺杂层中，而另一个电极，顶部电极是表面金属化。 掺杂层被沟槽化，使得掺杂层中的相邻电极彼此电绝缘，使得掺杂层中的一个电极可以与掺杂层中的另一个电极的不同的电极连接，从而允许 电极对成并联反相模式。

公开(公告)号：US20060093266A1

公开(公告)日：2006-05-04

申请号：US10527607

申请日：2003-09-09

Applicant: Giovanni Gilardi ,  Paolo Milanese ,  Simone Pensa

Inventor： Giovanni Gilardi ,  Paolo Milanese ,  Simone Pensa

IPC: G02B6/42 ,  G02F1/295

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

Abstract: An optical modulator comprises a Z-cut lithium niobate substrate (21) on which is formed a Mach-Zehnder interferometer having two generally parallel waveguides (23, 25) lying beneath a buffer layer of dielectric material (27). First and second ground electrodes (29, 33) and a hot electrode (31) are disposed on the buffer layer (27), the first and second ground electrodes (29, 33) being spaced either side of the hot electrode (31), the hot electrode (31) and the first ground electrode (29) being proximate to at least apart of the respective waveguides (25, 23). 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 (G1) between the first ground and hot electrodes (29, 31) is smaller than the spacing (G2) between the second ground and hot electrodes (33, 31), 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切割的铌酸锂衬底（21），其上形成有马赫 - 曾德尔干涉仪，其具有位于电介质材料（27）的缓冲层下方的两个大致平行的波导（23,25）。 第一和第二接地电极（29,33）和热电极（31）设置在缓冲层（27）上，第一和第二接地电极（29,33）与热电极（31）的任一侧隔开， 热电极（31）和第一接地电极（29）接近相应波导（25,23）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（29,31）之间的间隔（G 1）小于第二接地电极和热电极（33,31）之间的间隔（G 2）时，优选地，热和第一接地电极具有 宽度不超过15um，调制器能够在高于10GHz，可能高达约40GHz的频率下工作。