公开(公告)号：US07224878B1

公开(公告)日：2007-05-29

申请号：US11273152

申请日：2005-11-14

Applicant: Bruce W. Wessels ,  Pingsheng Tang ,  David J. Towner ,  Anthony L. Meier

Inventor： Bruce W. Wessels ,  Pingsheng Tang ,  David J. Towner ,  Anthony L. Meier

IPC: G02B6/10 ,  G02F1/035 ,  G02F1/295

CPC classification number: G02F1/0356 ,  B82Y20/00 ,  G02F2201/063 ,  G02F2201/066 ,  G02F2201/127 ,  G02F2202/36

Abstract: Electro-optic modulator devices and related waveguide components comprising BaTiO3 films.

Abstract translation: 电光调制器装置和包括BaTiO 3膜的相关波导部件。

公开(公告)号：US07215851B2

公开(公告)日：2007-05-08

申请号：US11268316

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：US07167605B2

公开(公告)日：2007-01-23

申请号：US10519204

申请日：2003-06-27

Applicant: William S. C. Chang ,  Paul K. L. Yu

Inventor： William S. C. Chang ,  Paul K. L. Yu

IPC: G02F1/17

CPC classification number: G02F1/01708 ,  B82Y20/00 ,  G02F2201/063 ,  G02F2201/127

Abstract: A method for optical modulation comprising the steps of guiding an optical wave in an optical waveguide, the optical wave having an evanescent tail; and applying a modulation voltage to the evanescent tail.

Abstract translation: 一种用于光学调制的方法，包括以下步骤：在光波导中引导光波，所述光波具有渐逝尾部; 并向渐逝尾部施加调制电压。

公开(公告)号：US07068866B2

公开(公告)日：2006-06-27

申请号：US10700245

申请日：2003-11-03

Applicant: Wenshen Wang ,  David C Scott ,  Elizabeth T Kunkee

Inventor： Wenshen Wang ,  David C Scott ,  Elizabeth T Kunkee

IPC: G02F1/295 ,  G02B6/34 ,  G02B6/10

CPC classification number: B82Y20/00 ,  B82Y10/00 ,  G02F1/025 ,  G02F2201/127 ,  G02F2201/307 ,  G02F2202/32

Abstract: A PIN electro-optical traveling wave modulator (10) including diffraction gratings (34, 36) positioned at opposing sides of an optical waveguide (20) that act to change the propagation pattern of the waveguide (20). The modulator (10) includes an N-type layer (14), a P-type layer (18) and an intrinsic layer (16) acting as the waveguide (20). A metal electrode (26) is in electrical contact with the N-type layer (14), and a metal electrode (30) is in electrical contact with the P-type layer (18). The electrodes (26, 30) define an RF transmission line. An optical wave (22) propagates along the waveguide (20) and interacts with the gratings (34, 36) which slow the optical wave (22) to match its speed to the speed of the RF wave in the transmission line. In one embodiment, the gratings (34, 36) are 2-D gratings formed by vertical holes (38) in the waveguide (20).

Abstract translation: 一种PIN电光行波调制器（10），其包括位于光波导（20）的相对侧的衍射光栅（34,36），其用于改变波导（20）的传播图案。 调制器（10）包括N型层（14），P型层（18）和用作波导（20）的本征层（16）。 金属电极（26）与N型层（14）电接触，金属电极（30）与P型层（18）电接触。 电极（26,30）限定RF传输线。 光波（22）沿着波导（20）传播并与光栅（34,36）相互作用，光栅（34,36）使光波（22）的速度与传输线中的RF波的速度相匹配。 在一个实施例中，光栅（34,36）是由波导（20）中的垂直孔（38）形成的2-D光栅。

公开(公告)号：US07058265B2

公开(公告)日：2006-06-06

申请号：US10446037

申请日：2003-05-27

Applicant: Alfonso Benjamin Amparan ,  David Lee Gines

Inventor： Alfonso Benjamin Amparan ,  David Lee Gines

IPC: G02B6/42

CPC classification number: G02F1/0356 ,  G02F2201/127

Abstract: In a method of fabricating a traveling wave optical modulator, an optical waveguide structure having an optical waveguide and a signal electrode path extending from a signal input to a termination output is formed. The signal electrode path is modified to include a customized signal electrode having a transmission line characteristic substantially matching a target transmission line parameter value. In another aspect, a traveling wave optical waveguide structure includes an optical waveguide and a signal electrode path. The signal electrode path extends from a signal input to a termination output and is defined by an electrode seed structure. The electrode seed structure is exposed for subsequent electrode formation and has a transmission line characteristic detrimental to proper propagation of an electrical modulation signal.

Abstract translation: 在制造行波光调制器的方法中，形成具有光波导的光波导结构和从信号输入延伸到终端输出的信号电极路径。 信号电极路径被修改为包括具有基本上与目标传输线参数值匹配的传输线特性的定制信号电极。 在另一方面，行波光波导结构包括光波导和信号电极路径。 信号电极路径从信号输入端延伸到终端输出，并由电极种子结构限定。 电极种子结构被暴露以用于随后的电极形成，并且具有不利于电调制信号的适当传播的传输线特性。

公开(公告)号：US07039258B2

公开(公告)日：2006-05-02

申请号：US10917927

申请日：2004-08-13

Applicant: Lawrence C. Gunn, III ,  Roger Koumans ,  Bing Li ,  Guo Liang Li ,  Thierry J. Pinguet

Inventor： Lawrence C. Gunn, III ,  Roger Koumans ,  Bing Li ,  Guo Liang Li ,  Thierry J. Pinguet

IPC: G02F1/025

CPC classification number: 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

Abstract: 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.

Abstract translation: 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：US20060056768A1

公开(公告)日：2006-03-16

申请号：US11268316

申请日：2005-11-07

Applicant: David Nippa ,  Richard Ridgway ,  Steven Risser ,  Dirk Schoellner ,  Louis Vassy

Inventor： David Nippa ,  Richard Ridgway ,  Steven Risser ,  Dirk Schoellner ,  Louis Vassy

IPC: G02B6/26 ,  G02B6/10 ,  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.

公开(公告)号：US06836573B2

公开(公告)日：2004-12-28

申请号：US10236341

申请日：2002-09-05

Applicant: Haruhisa Soda

Inventor： Haruhisa Soda

IPC: G02F1035

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.

公开(公告)号：US06831767B2

公开(公告)日：2004-12-14

申请号：US10459472

申请日：2003-06-12

Applicant: Junji Shigeta ,  Masataka Shirai ,  Shinji Tsuji ,  Hideo Arimoto

Inventor： Junji Shigeta ,  Masataka Shirai ,  Shinji Tsuji ,  Hideo Arimoto

IPC: G02F101

CPC classification number: B82Y20/00 ,  G02F1/01708 ,  G02F1/0356 ,  G02F2001/0157 ,  G02F2201/127

Abstract: An optical modulator having a good reflection characteristic over a broad band is provided, with a small semiconductor chip area, by use of a semiconductor chip on which a semiconductor optical modulator is mounted. A typical example of the optical modulator has a structure in which a semiconductor chip provided with an electro-absorption semiconductor optical modulator comprising an electrode of traveling wave modulator is mounted on a dielectric substrate provided with a transmission line, and the characteristic impedance of at least a part of the transmission line is set to be greater than the output impedance of a modulator driver circuit and the impedance of an optical modulator portion. By this, a broad band optical modulator with excellent reflection characteristic can be provided by use of a semiconductor chip which is small in area.

Abstract translation: 通过使用其上安装有半导体光调制器的半导体芯片，提供了在宽带上具有良好反射特性的光调制器，具有小的半导体芯片面积。 光调制器的典型实例具有这样的结构，其中设置有包括行波调制器电极的电吸收半导体光调制器的半导体芯片安装在设置有传输线的电介质基板上，并且至少具有特征阻抗 传输线的一部分被设置为大于调制器驱动器电路的输出阻抗和光调制器部分的阻抗。 由此，可以通过使用面积小的半导体芯片来提供具有优异反射特性的宽带光调制器。

公开(公告)号：US20040136655A1

公开(公告)日：2004-07-15

申请号：US10740850

申请日：2003-12-22

Applicant: NKG INSULATORS, LTD.

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

IPC: G02B006/26 ,  G02F001/035

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 nullEnull 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 nullW/Gnull of a width nullWnull of the signal electrode 4 to a gap nullGnull between the ground and signal electrodes is 0.8 or higher. Preferably, the substrate 2 has a thickness nullTnull of 20 nullm 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”的比率“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。