公开(公告)号：US20100232737A1

公开(公告)日：2010-09-16

申请号：US12719905

申请日：2010-03-09

Applicant: Masaki Sugiyama ,  Yoshihiko Yoshida ,  Akira Ishii

Inventor： Masaki Sugiyama ,  Yoshihiko Yoshida ,  Akira Ishii

IPC: G02F1/035 ,  G02B6/12

CPC classification number: G02B6/12007 ,  G02B6/125 ,  G02F1/0356 ,  G02F1/225 ,  G02F2201/127

Abstract: There is provided an optical device including a plurality of Mach-Zehnder modulators; and an input branching waveguide to split an input light so as to direct the resulting light to the plurality of Mach-Zehnder modulators; the Mach-Zehnder modulator comprising: a splitter coupled to the input branching waveguide; pair of waveguides coupled to the splitter; a combiner coupled to the pair of waveguides; and a signal electrode to apply signals to the pair of waveguides; wherein the splitters are disposed in a different orientation to each other.

Abstract translation: 提供了包括多个马赫 - 曾德调制器的光学装置; 以及输入分支波导，以分离输入光，以将所得到的光引导到多个马赫 - 曾德调制器; 所述马赫 - 策德尔调制器包括：耦合到输入分支波导的分路器; 耦合到分离器的一对波导; 耦合到所述一对波导的组合器; 以及用于将信号施加到所述一对波导的信号电极; 其中分离器彼此不同的方向设置。

公开(公告)号：US07751656B2

公开(公告)日：2010-07-06

申请号：US12025347

申请日：2008-02-04

Applicant: Masaki Sugiyama

Inventor： Masaki Sugiyama

IPC: G02F1/35

CPC classification number: G02F1/2255 ,  G02F2001/212 ,  G02F2201/127

Abstract: An optical modulator comprising; an optical waveguide in which input light propagates; a signal electrode having an end portion in which signal microwave is input and having an interaction area in which the signal microwave interacts with the light propagating in the optical waveguide; and, a ground electrode forming a coaxial structure with the signal electrode, wherein, width of the end portion is greater than width of the interaction area and thickness of the end portion is less than thickness of the interaction area.Also disclosed is an optical modulator, further comprising a substrate having an electro-optic effect; and, a buffer layer on the substrate, wherein, the signal electrode and ground electrode are formed on the buffer layer, and thickness of the buffer layer near the end portion of the signal electrode is greater than thickness of the buffer layer near the interaction area.

Abstract translation: 一种光调制器，包括： 输入光传播的光波导; 信号电极，其具有输入信号微波的端部，并且具有信号微波与在光波导中传播的光相互作用的相互作用区域; 以及与所述信号电极形成同轴结构的接地电极，其中，所述端部的宽度大于所述相互作用面积的宽度，并且所述端部的厚度小于所述相互作用面积的厚度。 还公开了一种光学调制器，还包括具有电光效应的衬底; 以及衬底上的缓冲层，其中信号电极和接地电极形成在缓冲层上，并且靠近信号电极的端部的缓冲层的厚度大于相互作用区域附近的缓冲层的厚度 。

公开(公告)号：US20100027934A1

公开(公告)日：2010-02-04

申请号：US12311395

申请日：2007-09-27

Applicant: Ryo Shimizu ,  Takahisa Fujita ,  Toru Sugamata

Inventor： Ryo Shimizu ,  Takahisa Fujita ,  Toru Sugamata

IPC: G02F1/035 ,  G02B6/12

CPC classification number: G02F1/0356 ,  G02F1/0327 ,  G02F2001/212 ,  G02F2201/127 ,  G02F2202/20

Abstract: An object of the invention is to provide a traveling-wave-type optical modulator capable of adjusting the frequency characteristics of an electric/optical conversion response over a wide frequency band, preventing the occurrence of jitter, and improving optical transmission characteristics.A traveling-wave-type optical modulator 20 includes: a substrate that has an electro-optical effect; an optical waveguide that is formed on the substrate; a modulating electrode that controls the modulation of a light wave traveling through the optical waveguide and includes a signal electrode portion 21 and a ground electrode portion; an input interface 22 that is connected to an input side of the signal electrode portion; a terminator 23 that is connected to the end of the signal electrode portion; and an adjustment filter 31 that is provided between the input interface and the signal electrode portion and adjusts frequency characteristics.It is preferable that the adjustment filter 31 be a passive filter.

Abstract translation: 本发明的目的是提供一种能够调整宽频带上的电/光转换响应的频率特性的行波型光调制器，防止发生抖动，提高光传输特性。 行波型光调制器20包括：具有电光效应的基板; 形成在基板上的光波导; 控制通过光波导传播的光波的调制的调制电极，包括信号电极部21和接地电极部; 连接到信号电极部分的输入侧的输入接口22; 连接到信号电极部分的端部的终端器23; 以及设置在输入接口和信号电极部分之间并调节频率特性的调节滤波器31。 调整滤波器31最好是无源滤波器。

公开(公告)号：US07486247B2

公开(公告)日：2009-02-03

申请号：US11622700

申请日：2007-01-12

Applicant: Richard W. Ridgway ,  Steven Risser ,  David W. Nippa

Inventor： Richard W. Ridgway ,  Steven Risser ,  David W. Nippa

IPC: H01Q13/10

CPC classification number: H01Q13/085 ,  G02F1/065 ,  G02F2201/127 ,  G02F2202/07 ,  H01Q21/061

Abstract: In accordance with one embodiment of the present invention, an antenna assembly comprising an antenna portion and an electrooptic waveguide portion is provided. The antenna portion comprises at least one tapered slot antenna. The waveguide portion comprises at least one electrooptic waveguide. The electrooptic waveguide comprises a waveguide core extending substantially parallel to a slotline of the tapered slot antenna in an active region of the antenna assembly. The electrooptic waveguide at least partially comprises a velocity matching electrooptic polymer in the active region of the antenna assembly. The velocity νe of a millimeter or sub-millimeter wave signal traveling along the tapered slot antenna in the active region is at least partially a function of the dielectric constant of the velocity matching electrooptic polymer. In addition, the velocity νO of an optical signal propagating along the waveguide in the active region is at least partially a function of the index of refraction of the velocity matching electrooptic polymer. Accordingly, the active region and the velocity matching electrooptic polymer can be configured such that νe and νO are substantially the same, or at least within a predetermined range of each other, in the active region. Additional embodiments are disclosed and claimed.

Abstract translation: 根据本发明的一个实施例，提供一种包括天线部分和电光波导部分的天线组件。 天线部分包括至少一个锥形缝隙天线。 波导部分包括至少一个电光波导。 电光波导包括在天线组件的有源区域中基本上平行于锥形缝隙天线的槽线延伸的波导芯。 电光波导至少部分地包括天线组件的有源区域中的速度匹配电光聚合物。 在有源区域中沿着锥形槽天线行进的毫米波或亚毫米波信号的速度Nue至少部分地是速度匹配电光聚合物的介电常数的函数。 另外，在有源区中沿着波导传播的光信号的速度nuO至少部分地是速度匹配电光聚合物的折射率的函数。 因此，活性区域和速度匹配电光聚合物可以被配置为使得nue和nuO在活性区域中基本相同或至少在彼此的预定范围内。 公开并要求保护附加实施例。

公开(公告)号：US07218819B2

公开(公告)日：2007-05-15

申请号：US10740850

申请日：2003-12-22

Applicant: Kenji Aoki ,  Osamu Mitomi ,  Jungo Kondo ,  Atsuo Kondo

Inventor： Kenji Aoki ,  Osamu Mitomi ,  Jungo Kondo ,  Atsuo Kondo

IPC: G02B6/26 ,  G02F1/035

CPC classification number: G02F1/035 ,  G02F1/0316 ,  G02F1/225 ,  G02F2201/127

Abstract: An object of the invention is to provide an electrode system for optical modulation of an optical modulator to reduce a thickness “E” of an electrode required for velocity matching and for reducing a propagation loss in the electrode. A substrate 2 is made of an electrooptic material and has one and the other main faces 2a, 2b opposing each other. An electrode system 20A is provided on the substrate 2 for applying a voltage for modulating light propagating in optical waveguides 6A and 6B. The electrode system 20A includes ground electrodes 3A, 3B and a signal electrode 4. A ratio “W/G” of a width “W” of the signal electrode 4 to a gap “G” between the ground and signal electrodes is 0.8 or higher. Preferably, the substrate 2 has a thickness “T” of 20 μm or larger, in a region where the optical waveguides 6A and 6B are provided.

Abstract translation: 本发明的目的是提供一种用于光学调制器的光学调制的电极系统，以减小速度匹配所需的电极的厚度“E”并减小电极中的传播损耗。 基板2由电光材料制成，并且具有彼此相对的一个和另一个主面2a，2b。 电极系统20A设置在基板2上，用于施加用于调制在光波导6A和6B中传播的光的电压。电极系统20A包括接地电极3A，3B和信号电极4。 信号电极4的宽度“W”与接地信号电极之间的间隙“G”的比“W / G”为0.8以上。 优选地，在设置有光波导6A和6B的区域中，基板2的厚度“T”为20μm以上。

公开(公告)号：US07133576B2

公开(公告)日：2006-11-07

申请号：US11359824

申请日：2006-02-22

Applicant: Christopher W. Coldren ,  Larry A. Coldren

Inventor： Christopher W. Coldren ,  Larry A. Coldren

IPC: G02F1/01 ,  G02F1/295

CPC classification number: H01L31/035236 ,  B82Y20/00 ,  G02F1/025 ,  G02F1/0356 ,  G02F1/2255 ,  G02F1/2257 ,  G02F2/004 ,  G02F2001/212 ,  G02F2002/008 ,  G02F2201/127 ,  H01L31/105 ,  H01S5/026 ,  H01S5/0262 ,  H01S5/0265 ,  H01S5/0427 ,  H01S5/06256 ,  H01S5/1209

Abstract: Traveling-wave optoelectronic wavelength conversion is provided by a monolithic optoelectronic integrated circuit that includes an interconnected traveling-wave photodetector and traveling-wave optical modulator with a widely tunable laser source. Either parallel and series connections between the photodetector and modulator may be used. An input signal modulated onto a first optical wavelength develops a traveling wave voltage on transmission line electrodes of the traveling-wave photodetector, and this voltage is coupled via an interconnecting transmission line of the same characteristic impedance to transmission line electrodes of the traveling-wave optical modulator to modulate the signal onto a second optical wavelength derived from the tunable laser. The traveling wave voltage is terminated in a load resistor having the same characteristic impedance as the photodetector and modulator transmission lines. However, the interconnecting transmission lines and the load resistor may have different impedances than the photodetector and modulator.

Abstract translation: 行波光电波长转换由单片光电集成电路提供，该集成电路包括具有广泛可调激光源的互连行波光电探测器和行波光调制器。 可以使用光电检测器和调制器之间的并联和串联连接。 调制到第一光波长的输入信号在行波光电检测器的传输线电极上产生行波电压，并且该电压通过相同特性阻抗的互连传输线耦合到行波光学器件的传输线电极 调制器将信号调制到从可调激光器得到的第二光波长上。 行波电压终止于具有与光电检测器和调制器传输线相同的特性阻抗的负载电阻器中。 然而，互连传输线路和负载电阻器可以具有与光电检测器和调制器不同的阻抗。

公开(公告)号：US07076134B2

公开(公告)日：2006-07-11

申请号：US11268156

申请日：2005-11-07

Applicant: David W. Nippa ,  Richard W. Ridgway ,  Steven M. Risser ,  Dirk Schoellner ,  Louis P. Vassy

Inventor： David W. Nippa ,  Richard W. Ridgway ,  Steven M. Risser ,  Dirk Schoellner ,  Louis P. Vassy

IPC: G02B6/26 ,  G02B6/42

CPC classification number: G02F1/065 ,  G02B6/122 ,  G02F2201/06 ,  G02F2201/127 ,  G02F2202/022 ,  G02F2203/06 ,  G02F2203/48 ,  G02F2203/50

Abstract: Methods of attenuating, delaying the phase, and otherwise controlling an optical signal propagating along a waveguide are provided. According to one method, a variable optical attenuator structure is provided comprising a waveguide core, a cladding, an electrooptic polymer, and a set of control electrodes. The core, the cladding, and the electrooptic polymer are configured such that an increase in the index of refraction of the polymer causes a substantial portion of an optical signal propagating along the waveguide core to couple into a relatively high index region of the electrooptic polymer above the waveguide core, so as to inhibit return of the coupled signal to the waveguide core. Another embodiment of the present invention introduces a phase delay in the coupled optical signal and permits return of the coupled signal to the waveguide core. An additional embodiment contemplates the use of a ridge waveguide structure to enable control of the optical signal. Additional embodiments are disclosed and claimed.

Abstract translation: 提供衰减，延迟相位以及以其它方式控制沿着波导传播的光信号的方法。 根据一种方法，提供了包括波导芯，包层，电光聚合物和一组控制电极的可变光衰减器结构。 芯，包层和电光聚合物被配置为使得聚合物的折射率的增加导致沿着波导芯传播的光信号的大部分耦合到上述电光聚合物的相对高的折射率区域 波导芯，以便抑制耦合信号返回到波导芯。 本发明的另一实施例引入耦合的光信号中的相位延迟并允许耦合信号返回到波导芯。 附加实施例考虑使用脊波导结构来实现光信号的控制。 公开并要求保护附加实施例。

公开(公告)号：US07043097B2

公开(公告)日：2006-05-09

申请号：US10724942

申请日：2003-12-01

Applicant: Christopher W. Coldren ,  Larry A. Coldren

Inventor： Christopher W. Coldren ,  Larry A. Coldren

IPC: G02F1/01

CPC classification number: H01L31/035236 ,  B82Y20/00 ,  G02F1/025 ,  G02F1/0356 ,  G02F1/2255 ,  G02F1/2257 ,  G02F2/004 ,  G02F2001/212 ,  G02F2002/008 ,  G02F2201/127 ,  H01L31/105 ,  H01S5/026 ,  H01S5/0262 ,  H01S5/0265 ,  H01S5/0427 ,  H01S5/06256 ,  H01S5/1209

Abstract: Traveling-wave optoelectronic wavelength conversion is provided by a monolithic optoelectronic integrated circuit that includes an interconnected traveling-wave photodetector and traveling-wave optical modulator with a widely tunable laser source. Either parallel and series connections between the photodetector and modulator may be used. An input signal modulated onto a first optical wavelength develops a traveling wave voltage on transmission line electrodes of the traveling-wave photodetector, and this voltage is coupled via an interconnecting transmission line of the same characteristic impedance to transmission line electrodes of the traveling-wave optical modulator to modulate the signal onto a second optical wavelength derived from the tunable laser. The traveling wave voltage is terminated in a load resistor having the same characteristic impedance as the photodetector and modulator transmission lines. However, the interconnecting transmission lines and the load resistor may have different impedances than the photodetector and modulator.

公开(公告)号：US07031558B2

公开(公告)日：2006-04-18

申请号：US10642931

申请日：2003-08-18

Applicant: Hassan Tanbakuchi

Inventor： Hassan Tanbakuchi

IPC: G02F1/01

CPC classification number: B82Y20/00 ,  G02F1/0121 ,  G02F1/01708 ,  G02F1/0344 ,  G02F2001/0157 ,  G02F2201/127

Abstract: A low-pass filter transmission line with an integral electro-absorption modulator is described. In one aspect, the electro-absorption modulator functions as an element of a distributed low-pass filter transmission line circuit that is impedance-matched to a target source impedance. In this way, the electrical voltage that is delivered across the electro-absorption modulator may be optimized because the electrical losses do not occur in the low-pass filter transmission line circuit, but rather substantially all incident power is absorbed in a downstream matched termination load. In another aspect, the electro-absorption modulator has a signal electrode with a segmented traveling wave structure that provides substantially the same modulation performance as a similar un-segmented signal electrode of comparable effective length, but is characterized by a substantially higher bandwidth.

Abstract translation: 描述了具有集成电吸收调制器的低通滤波器传输线。 在一个方面，电吸收调制器用作与目标源阻抗阻抗匹配的分布式低通滤波器传输线路电路的元件。 以这种方式，由于在低通滤波器传输线电路中不会发生电损耗，所以可以优化跨过电吸收调制器的电压，而是基本上所有的入射功率被吸收在下游匹配的端接负载 。 在另一方面，电吸收调制器具有具有分段行波结构的信号电极，其具有与类似的有效长度相似的未分段信号电极基本相同的调制性能，但其特征在于具有相当高的带宽。

公开(公告)号：US06973238B2

公开(公告)日：2005-12-06

申请号：US10655769

申请日：2003-09-05

Applicant: Haruhisa Soda ,  Shigeru Nakagawa

Inventor： Haruhisa Soda ,  Shigeru Nakagawa

IPC: G02F1/313 ,  G02B6/42 ,  G02B6/26

CPC classification number: G02F1/3133 ,  G02F2201/127

Abstract: A directional coupler type optical modulator with traveling-wave electrodes includes a first directional coupler region, a waveguide wave coupling region, a second directional coupler region, and a set of noncrossing traveling-wave electrodes disposed along the outside of the waveguides. The electrodes of each directional coupler are connected to the traveling-wave electrodes via air-bridges. The waveguide structures are of the P-I-N type having a common N-type conducting layer which provides delta-beta operation of the directional coupler, and both cross and bar states are controlled by a single input signal.

Abstract translation: 具有行波电极的定向耦合器型光调制器包括第一定向耦合器区域，波导管耦合区域，第二定向耦合器区域和沿着波导的外侧布置的一组非交叉行波电极。 每个定向耦合器的电极通过气桥连接到行波电极。 波导结构是具有公共N型导电层的P-I-N型，其提供定向耦合器的delta-β操作，并且交叉和条状态都由单个输入信号控制。