公开(公告)号：US20050094914A1

公开(公告)日：2005-05-05

申请号：US10701722

申请日：2003-11-04

申请人： David Gines ,  Russell Gruhlke ,  Alfonso Amparan

发明人： David Gines ,  Russell Gruhlke ,  Alfonso Amparan

IPC分类号： G02F1/01 ,  G02F1/015 ,  G02F1/017

CPC分类号： B82Y20/00 ,  G02F1/01708 ,  G02F2001/0157 ,  G02F2201/063 ,  G02F2201/127 ,  G02F2202/32

摘要： Embodiments of the invention provide an electro-absorption modulator including an optical waveguide and a microwave waveguide. The microwave waveguide is electromagnetically coupled to the optical waveguide. The optical waveguide includes a quantum well region and a substantially sinusoidal structure. The waveguide mode of the optical waveguide is responsive to the substantially sinusoidal structure.

摘要翻译： 本发明的实施例提供一种包括光波导和微波波导的电吸收调制器。 微波波导电磁耦合到光波导。 光波导包括量子阱区和基本正弦结构。 光波导的波导模式响应于基本上正弦的结构。

公开(公告)号：US20050047704A1

公开(公告)日：2005-03-03

申请号：US10923829

申请日：2004-08-24

申请人： Fumio Ohtake

发明人： Fumio Ohtake

IPC分类号： G02B6/12 ,  G02F1/017 ,  G02F1/035 ,  G02F1/225

CPC分类号： G02F1/2255 ,  G02F1/2257 ,  G02F2201/122 ,  G02F2201/127

摘要： An optical semiconductor device that includes: an optical waveguide formed on a substrate; a modulation electrode and a conductive region that form a modulation region in the optical waveguide; and an interconnection pattern electrically connected to the modulation electrode. In this optical semiconductor device, the conductive region is formed in an area that excludes a region in which the interconnection pattern overlaps the optical waveguide.

摘要翻译： 一种光学半导体器件，包括：形成在基板上的光波导; 调制电极和在该光波导中形成调制区域的导电区域; 以及电连接到调制电极的互连图案。 在这种光学半导体器件中，导电区形成在排除互连图案与光波导重叠的区域的区域中。

公开(公告)号：US20050036791A1

公开(公告)日：2005-02-17

申请号：US10917927

申请日：2004-08-13

申请人： Lawrence Gunn ,  Roger Koumans ,  Bing Li ,  Guo Liang Li ,  Thierry Pinguet

发明人： Lawrence Gunn ,  Roger Koumans ,  Bing Li ,  Guo Liang Li ,  Thierry Pinguet

IPC分类号： G02B6/12 ,  G02F20060101 ,  G02F1/01 ,  G02F1/025 ,  G02F1/225 ,  H04B10/04

CPC分类号： H01S5/0265 ,  G02B2006/12142 ,  G02B2006/12159 ,  G02F1/0121 ,  G02F1/025 ,  G02F1/2255 ,  G02F1/2257 ,  G02F2201/127 ,  G02F2201/16 ,  G02F2201/20 ,  H01S5/5027 ,  H04B10/5051 ,  H04B10/5053

摘要： High speed optical modulators can be made of k modulators connected in series disposed on one of a variety of semiconductor substrates. An electrical signal propagating in a microwave transmission line is tapped off of the transmission line at regular intervals and is amplified by k distributed amplifiers. Each of the outputs of the k distributed amplifiers is connected to a respective one of the k modulators. Distributed amplifier modulators can have much higher modulating speeds than a comparable lumped element modulator, due to the lower capacitance of each of the k modulators. Distributed amplifier modulators can have much higher modulating speeds than a comparable traveling wave modulator, due to the impedance matching provided by the distributed amplifiers.

摘要翻译： 高速光学调制器可以由串联设置在各种半导体衬底之一上的k个调制器组成。 在微波传输线中传播的电信号以规则的间隔从传输线路中分离出来，并由k个分布式放大器放大。 k个分布式放大器的每个输出连接到k个调制器中的相应一个。 分布式放大器调制器可以具有比可比较的集总元件调制器高得多的调制速度，这是由于每个k个调制器的电容较小。 由于分布式放大器提供的阻抗匹配，分布式放大器调制器可以具有比类似的行波调制器更高的调制速度。

公开(公告)号：US06819851B2

公开(公告)日：2004-11-16

申请号：US10108250

申请日：2002-03-27

申请人： Kenji Aoki ,  Jungo Kondo ,  Atsuo Kondo ,  Osamu Mitomi

发明人： Kenji Aoki ,  Jungo Kondo ,  Atsuo Kondo ,  Osamu Mitomi

IPC分类号： G02F1035

CPC分类号： G02F1/0356 ,  G02F1/2255 ,  G02F2201/127

摘要： An optical waveguide device has an optical waveguide substrate and a supporting substrate. The optical waveguide substrate has a main body made of an electro-optic material and having a first main face and a second main face, an optical waveguide formed in or on the main body and an electrode formed on the side of the first main face of the main body. The supporting substrate is joined with the second main face of the main body. A low dielectric portion with a dielectric constant lower than that of the electro-optic material is formed in the supporting substrate.

摘要翻译： 光波导器件具有光波导基板和支撑基板。 光波导基板具有由电光材料制成的主体，具有第一主面和第二主面，形成在主体中或其上的光波导和形成在主体的第一主面侧的电极 主体。 支撑基板与主体的第二主面接合。 在支撑衬底中形成介电常数低于电光材料的介电常数的低电介质部分。

公开(公告)号：US20040047529A1

公开(公告)日：2004-03-11

申请号：US10236341

申请日：2002-09-05

申请人： FiBest, Inc.

发明人： Haruhisa Soda

IPC分类号： G02F001/035

CPC分类号： G02F1/3133 ,  G02F2201/127

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20030228081A1

公开(公告)日：2003-12-11

申请号：US10427982

申请日：2003-05-02

发明人： Robert F. Tavlykaev ,  Ganesh K. Gopalakrishnan ,  Scott T. Taylor

IPC分类号： G02F001/035

CPC分类号： G02F1/0316 ,  G02F1/0356 ,  G02F2201/126 ,  G02F2201/127

摘要： The present invention relates to an optical modulator including an optical waveguide, and at least one CPW-to-CPS transition. The CPW segments include a hot electrode; and a ground plane disposed on each side of the hot electrode, and they share a ground plane. The CPS segment extends along an interaction length of the modulator. In one embodiment, two driving signals are applied so that the modulator operates as a dual-drive modulator. In another embodiment, a domain-inverted region is formed in a substrate of the dual-drive modulator to overlap with one arm of the optical waveguide (MZI) and invert a sign of a phase shift induced in that arm. Finally, a fixed chirp can be introduced into the dual-drive modulator by asymmetrically positioning the interferometer arms into gaps of the CPW segments with respect to the hot electrode, and by employing unequal width gaps in the CPW segments.

摘要翻译： 本发明涉及一种包括光波导的光调制器和至少一个CPW至CPS转换。 CPW段包括热电极; 以及设置在热电极的每一侧上的接地平面，并且它们共享接地平面。 CPS段沿着调制器的相互作用长度延伸。 在一个实施例中，施加两个驱动信号，使得调制器作为双驱动调制器工作。 在另一个实施例中，在双驱动调制器的衬底中形成域反向区域，以与光波导（MZI）的一个臂重叠，并且反转在该臂中引起的相移的符号。 最后，通过将干涉仪臂相对于热电极不对称地定位到CPW段的间隙中，并且通过在CPW段中采用不相等的宽度间隙，可以将固定的啁啾引入双驱动调制器。

公开(公告)号：US06661560B1

公开(公告)日：2003-12-09

申请号：US09935777

申请日：2001-08-24

申请人： Roman Sobolewski

发明人： Roman Sobolewski

IPC分类号： G02F109

CPC分类号： G02F1/09 ,  G02F1/0036 ,  G02F2201/127

摘要： A magneto-optic modulator modulates signals from a superconducting circuit such as a single-flux-quantum (SFQ) logic system onto a carrier wave light beam. The modulator is formed by depositing a magneto-optic material such as EuSe onto a superconducting ground plane such as that of the circuit. A microwave microstrip line is formed on the magneto-optic material and carries a signal from the circuit. The signal induces an H field in the magneto-optic material which causes the magneto-optic material to modulate the light.

摘要翻译： 磁光调制器将来自诸如单通量量子（SFQ）逻辑系统的超导电路的信号调制到载波光束上。 通过将诸如EuSe的磁光材料沉积到诸如电路的超导接地平面上来形成调制器。 微波微带线形成在磁光材料上并承载来自电路的信号。 该信号在磁光材料中引起H场，其导致磁光材料调制光。

公开(公告)号：US5995270A

公开(公告)日：1999-11-30

申请号：US951533

申请日：1997-10-16

申请人： Kenji Kawano

发明人： Kenji Kawano

IPC分类号： G02F1/015 ,  G02F1/017

CPC分类号： B82Y20/00 ,  G02F1/01708 ,  G02F2001/0159 ,  G02F2201/127

摘要： A wideband semiconductor electro-absorption optical modulator including a semiconductor core shorter in absorption-peak wavelength than a wavelength of optical signal, and an electrode for applying an electric signal to absorb the optical signal by shifting the absorption-peak wavelength to a long wavelength region when a voltage is applied, wherein an electric signal input port and an electric signal output port are disposed so that the electrode is constructed in the form of a traveling-wave electrode, and a total thickness of non-doped layers including the semiconductor core is reduced to decrease a driving voltage. Degradation of optical modulation bandwidth and reflection characteristics of the electric signal caused by mismatching of characteristic impedance to an outer circuit are reduced by decreasing an interaction length of the electric signal and the optical signal. Further, mismatching of characteristic impedance is corrected by adjusting a doping concentration of a p-type or n-type doped layer located above or beneath the semiconductor core.

摘要翻译： 一种宽带半导体电吸收光调制器，其包括具有比光信号的波长更短的吸收峰值波长的半导体芯片，以及用于通过将吸收峰值波长移位到长波长区域来施加电信号以吸收光信号的电极 当施加电压时，其中设置电信号输入端口和电信号输出端口，使得电极构造为行波电极的形式，并且包括半导体芯的非掺杂层的总厚度为 降低驱动电压。 通过减小电信号和光信号的相互作用长度，降低由特性阻抗与外部电路失配引起的电信号的光调制带宽和反射特性的降低。 此外，通过调整位于半导体芯上方或下方的p型或n型掺杂层的掺杂浓度来校正特性阻抗的失配。

公开(公告)号：US5712933A

公开(公告)日：1998-01-27

申请号：US388454

申请日：1995-02-14

申请人： Hiroshi Nishimoto ,  Tetsuyuki Suzaki

发明人： Hiroshi Nishimoto ,  Tetsuyuki Suzaki

IPC分类号： G02F1/035 ,  G02F1/225 ,  G02F1/313 ,  G02F1/295

CPC分类号： G02F1/2255 ,  G02F1/3134 ,  G02F2201/127 ,  G02F2203/21

摘要： A waveguide-type optical device includes a substrate with an electro-optical effect, two adjacent optical waveguides, a signal electrode covering either of the optical waveguides and an earth electrode covering the other optical waveguide and having a segment of the same form as the signal electrode which lies close to the other optical waveguide.

摘要翻译： 波导型光学器件包括具有电光效应的衬底，两个相邻的光波导，覆盖光波导中的任一个的信号电极和覆盖另一光波导的接地电极，并具有与信号相同形式的段 靠近另一个光波导的电极。

公开(公告)号：US5339369A

公开(公告)日：1994-08-16

申请号：US965191

申请日：1992-10-23

申请人： Samuel Hopfer ,  Yosef Shani

发明人： Samuel Hopfer ,  Yosef Shani

IPC分类号： G02B6/12 ,  G02F1/035 ,  G02F1/225

CPC分类号： G02B6/12004 ,  G02F1/0356 ,  G02F1/2255 ,  G02F2201/07 ,  G02F2201/127

摘要： An improved high-speed external optical modulator, modulated by RF waves, which velocity matches the RF waves with the optical waves is disclosed. The apparatus includes a lithium niobate substrate on which is formed an optical waveguide, electrically floating electrodes, a low dielectric buffer layer and electrodes carrying the modulating RF energy.

摘要翻译： 公开了一种由RF波调制的改进的高速外部光学调制器，其速度与RF波与光波匹配。 该装置包括铌酸锂基板，其上形成有光波导，电浮动电极，低介电缓冲层和承载调制RF能量的电极。