公开(公告)号：US20060085159A1

公开(公告)日：2006-04-20

申请号：US10539268

申请日：2004-09-08

Applicant: Takeaki Itsuji ,  Toshihiko Ouchi

Inventor： Takeaki Itsuji ,  Toshihiko Ouchi

IPC: G06F15/00 ,  G01C17/00

CPC classification number: G06F3/042

Abstract: To calculate information on a relative distance or positional relationship between an interface section and an object by detecting an electromagnetic wave transmitted through the interface section, and using the electromagnetic wave from the object to detect a relative position of the object with respective to the interface section. Information on the relative spatial position of an object 101 with respect to an interface section 102 that has an arbitrary shape and deals with transmission of information or signal from one side to the other side of the interface section 102 is detected with a spatial position detection method. An electromagnetic wave 106 radiated from the object 101 and transmitted through the interface section 102 is detected by an electromagnetic wave detection section 103, and based on the detection result, information on spatial position coordinates of the object 101 is calculated by a position calculation section 104.

Abstract translation: 通过检测通过接口部分发送的电磁波来计算接口部分和对象之间的相对距离或位置关系的信息，并且使用来自对象的电磁波来检测对象相对于接口部分的相对位置 。 利用空间位置检测方法检测关于对象101相对于具有任意形状的接口部分102并且处理从接口部分102的一侧到另一侧的信息或信号的传输的相对空间位置的信息 。 通过电磁波检测部103检测从物体101射出并通过接口部102透射的电磁波106，根据检测结果，由位置计算部104计算出物体101的空间位置坐标的信息 。

公开(公告)号：US20060039431A1

公开(公告)日：2006-02-23

申请号：US11180534

申请日：2005-07-14

Applicant: Ryota Sekiguchi ,  Toshihiko Ouchi

Inventor： Ryota Sekiguchi ,  Toshihiko Ouchi

IPC: H01S5/00

CPC classification number: H01S5/34313 ,  B82Y20/00 ,  H01S5/22 ,  H01S5/3086 ,  H01S5/3422 ,  H01S2302/02

Abstract: A device includes a multiple quantum well with potential barriers and quantum wells, and an electric field element for applying an electric field thereto. The multiple quantum well includes at least two regions A and a region B disposed therebetween. The region A includes a plurality of energy levels, and a carrier is transported from a specific energy level i to a specific energy level f in the region A through one of the potential barriers by photon-assisted tunneling. The region B includes a plurality of energy levels, and an energy relaxation is performed with a relaxation time shorter than a transit time of the carrier in the region A from a specific energy level e to a specific energy level g in the region B. When an electric field is applied, electric current flows through the multiple quantum well and light is emitted or absorbed in the region A.

Abstract translation: 一种器件包括具有势垒和量子阱的多量子阱以及用于向其施加电场的电场元件。 多重量子阱包括至少两个区域A和设置在它们之间的区域B. 区域A包括多个能级，并且载体通过光子辅助隧道通过其中一个势垒从特定能量级i传送到区域A中的特定能级f。 区域B包括多个能级，并且以比区域A中的载体从特定能级e到区域B中的特定能量级g的弛豫时间更短的弛豫时间执行能量弛豫。当 施加电场，电流流过多个量子阱，并且在区域A中发射或吸收光。

公开(公告)号：US06852968B1

公开(公告)日：2005-02-08

申请号：US09519672

申请日：2000-03-06

Applicant: Toshihiko Ouchi ,  Yasuhiro Shimada

Inventor： Toshihiko Ouchi ,  Yasuhiro Shimada

IPC: B81B3/00 ,  G01Q30/20 ,  G01Q60/00 ,  H01J3/14 ,  H01L21/00 ,  H01L21/302 ,  H01L21/461

CPC classification number: G01Q60/22

Abstract: A surface optical apparatus that includes a surface optical device with p-side and n-side electrodes, such as a surface emitting laser, a first substrate for supporting the surface optical device directly or through an elastic supporter formed of one or plural layers, and a first electrode wiring of at least a wire formed on the first substrate and electrically connected to one of the electrodes. A current is injected into or a voltage is applied across the surface optical device through the first electrode wiring and the p-side and n-side electrodes. A photodetector for detecting light from the surface optical device may also be arranged in the vicinity of the optical device.

Abstract translation: 一种表面光学装置，包括具有诸如表面发射激光器的p侧和n侧电极的表面光学装置，用于直接支撑表面光学装置的第一基板或通过由一层或多层形成的弹性支撑件，以及 至少形成在所述第一基板上并与所述电极中的一个电连接的第一电极布线。 注入电流，或者通过第一电极布线和p侧电极和n侧电极在表面光学器件上施加电压。 用于检测来自表面光学装置的光的光检测器也可以布置在光学装置附近。

公开(公告)号：US6055251A

公开(公告)日：2000-04-25

申请号：US678946

申请日：1996-07-12

Applicant: Toshihiko Ouchi ,  Masao Majima

Inventor： Toshihiko Ouchi ,  Masao Majima

IPC: H01S5/0625 ,  H01S5/0687 ,  H01S3/10

CPC classification number: H01S5/0687 ,  H01S5/06255 ,  H01S5/06258

Abstract: A driving method of the present invention drives a semiconductor laser which is provided with at least first and second electrodes through each of which current is injected into the semiconductor laser. Varying current is injected through the first electrode when the frequency of the varying current is in a high frequency band. Varying current is injected through the first electrode while phase-shifted current, whose phase is shifted relative to the varying current, is injected through the second electrode, when the frequency of the varying current is in a low frequency band which is lower than the frequency of the high frequency band. Feedback-control may be performed for controlling a ratio between amplitudes of the modulation current and the phase-shifted current based on a light output from the semiconductor laser. The varying current includes at least modulation current modulated according to a predetermined signal or negative feedback current produced by an electric signal obtained by detecting fluctuation of oscillation wavelength of a light output from the semiconductor laser. Thus, an optical signal radiated from the laser can be desirably stabilized over a wide frequency band range.

Abstract translation: 本发明的驱动方法驱动半导体激光器，该半导体激光器设置有至少第一和第二电极，每个电极通过其中的每一个被注入到半导体激光器中。 当变化的电流的频率处于高频带时，通过第一电极注入不同的电流。 通过第一电极注入不同的电流，而当相位相对于变化的电流偏移的相移电流通过第二电极注入时，当变化电流的频率处于低于频率的低频带时 的高频带。 可以基于来自半导体激光器的光输出来控制调制电流的幅度与相移电流之间的比率的反馈控制。 变化的电流至少包括根据通过检测从半导体激光器输出的光的振荡波长的波动而获得的电信号产生的预定信号或负反馈电流调制的调制电流。 因此，可以期望在宽频带范围内稳定从激光器辐射的光信号。

公开(公告)号：US5850408A

公开(公告)日：1998-12-15

申请号：US936817

申请日：1997-09-24

Applicant: Toshihiko Ouchi ,  Masao Majima

Inventor： Toshihiko Ouchi ,  Masao Majima

IPC: H01S3/10 ,  B82Y20/00 ,  H01S5/00 ,  H01S5/042 ,  H01S5/062 ,  H01S5/0625 ,  H01S5/34 ,  H01S5/343 ,  H01S3/19

CPC classification number: B82Y20/00 ,  H01S5/0625 ,  H04B10/532 ,  H01S5/06236 ,  H01S5/06258 ,  H01S5/3404 ,  H01S5/34306 ,  H01S5/34313 ,  H01S5/3434

Abstract: This invention discloses the following. Two modulation currents are injected into different electrodes of a semiconductor laser having a plurality of electrodes. The relationship between the phases of the two modulation currents is so adjusted that an output waveform is not distorted especially when a modulation frequency is low. Polarization modulation is applied as the modulation form.

Abstract translation: 本发明公开了如下。 将两个调制电流注入到具有多个电极的半导体激光器的不同电极中。 调整两个调制电流的相位之间的关系，使得输出波形不失真，特别是当调制频率低时。 应用极化调制作为调制形式。

公开(公告)号：US5764670A

公开(公告)日：1998-06-09

申请号：US607167

申请日：1996-02-26

Applicant: Toshihiko Ouchi

Inventor： Toshihiko Ouchi

IPC: H01S5/062 ,  H01S5/0625 ,  H01S5/343 ,  H01S3/19

CPC classification number: B82Y20/00 ,  H01S5/06203 ,  H01S5/06236 ,  H01S5/0625 ,  H01S5/06258 ,  H01S5/34313

Abstract: In a semiconductor laser apparatus, a waveguide has a buried heterostructure. The confinement effect of light to the waveguide having the buried heterostructure is controlled to control laser oscillation itself. Upon execution of intensity modulation, an oscillation/non-oscillation state is selected by controlling the confinement effect of light, and upon execution of polarized wave modulation, TE or TM mode oscillation is selected by controlling the confinement effect of light.

Abstract translation: 在半导体激光装置中，波导具有掩埋异质结构。 控制具有掩埋异质结构的波导的光的约束效应以控制激光振荡本身。 在执行强度调制时，通过控制光的约束效应来选择振荡/非振荡状态，并且在执行偏振波调制时，通过控制光的约束效应来选择TE或TM模式振荡。

公开(公告)号：US5699373A

公开(公告)日：1997-12-16

申请号：US769319

申请日：1996-12-19

Applicant: Mamoru Uchida ,  Toshihiko Ouchi

Inventor： Mamoru Uchida ,  Toshihiko Ouchi

IPC: H04B10/60 ,  B82Y20/00 ,  H01S5/00 ,  H01S5/062 ,  H01S5/0625 ,  H01S5/065 ,  H01S5/12 ,  H01S5/34 ,  H01S5/40 ,  H01S5/50 ,  H04B10/2507 ,  H04B10/40 ,  H04B10/50 ,  H01S3/10 ,  H01S3/19

CPC classification number: B82Y20/00 ,  H01S5/34 ,  H01S5/4043 ,  H01S2301/14 ,  H01S5/06236 ,  H01S5/06256 ,  H01S5/06258 ,  H01S5/12 ,  H01S5/3403 ,  H01S5/3404 ,  H01S5/3408 ,  H01S5/50 ,  H01S5/5009

Abstract: An oscillation polarization selective semiconductor laser that switches oscillation polarization modes between two different polarization modes includes a laser structure on a substrate. An active layer of the laser structure includes plural sets of quantum wells and barriers. The structure of at least one set of quantum wells and the barriers is different from the other sets so that the gain spectra generated in the active layer for induced mutually perpendicular propagation modes are selectively controlled by controlling the carrier density injected into the active layer. The oscillation polarization selective semiconductor laser may be used as a light source in optical communication systems.

Abstract translation: 在两种不同偏振模式之间切换振荡偏振模式的振荡偏振选择半导体激光器包括在衬底上的激光结构。 激光结构的有源层包括多组量子阱和​​屏障。 至少一组量子阱和​​阻挡层的结构不同于其他组，使得通过控制注入有源层的载流子密度来选择性地控制用于感应互相垂直传播模式的有源层中产生的增益光谱。 振荡极化选择半导体激光器可以用作光通信系统中的光源。

公开(公告)号：US5659560A

公开(公告)日：1997-08-19

申请号：US431717

申请日：1995-04-28

Applicant: Toshihiko Ouchi ,  Masao Majima ,  Jun Nitta ,  Seiji Mishima ,  Ouichi Kubota

Inventor： Toshihiko Ouchi ,  Masao Majima ,  Jun Nitta ,  Seiji Mishima ,  Ouichi Kubota

IPC: G02B6/42 ,  H01S5/026 ,  H01S5/062 ,  H01S5/0625 ,  H01S5/0683 ,  H01S5/0687 ,  H01S5/10 ,  H01S5/34 ,  H01S5/343 ,  H01S3/10

CPC classification number: B82Y20/00 ,  H01S5/0264 ,  H01S5/0625 ,  H01S5/0683 ,  H01S5/06832 ,  G02B6/4246 ,  H01S2302/00 ,  H01S5/026 ,  H01S5/06236 ,  H01S5/06258 ,  H01S5/0687 ,  H01S5/1021 ,  H01S5/3404 ,  H01S5/343 ,  H01S5/34306 ,  H01S5/34313 ,  H01S5/3434

Abstract: In a light source apparatus, the polarization mode of oscillation light from a semiconductor laser is switchable between two different polarization modes when a modulation current is injected into a portion of a light waveguide of the semiconductor laser. Light in one polarization mode and light in the other polarization mode are separately obtained from the oscillation light from the semiconductor laser. At least the light in one of the two different polarization modes is converted to an electric signal. Current injected into the semiconductor laser is controlled based on the electric signal such that a modulation state of light from the semiconductor laser is stabilized. The light in the other polarization mode, or light in one polarization mode emitted from the other emission side of the semiconductor laser may be used for optical transmission.

Abstract translation: 在光源装置中，当调制电流注入到半导体激光器的光波导的一部分中时，来自半导体激光器的振荡光的偏振模式可在两种不同的偏振模式之间切换。 在一个偏振模式中的光和另一个偏振模式的光分别从半导体激光器的振荡光获得。 至少将两种不同偏振模式之一的光转换为电信号。 基于电信号控制注入半导体激光器的电流，使得来自半导体激光器的光的调制状态稳定。 在另一种偏振模式中的光或者从半导体激光器的另一个发射侧发射的一种偏振模式的光可以用于光传输。

公开(公告)号：US20130284929A1

公开(公告)日：2013-10-31

申请号：US13979624

申请日：2012-01-10

Applicant: Toshihiko Ouchi

Inventor： Toshihiko Ouchi

IPC: G01J5/08 ,  G02F1/35

CPC classification number: G02F1/035 ,  G01J5/0818 ,  G01N21/3586 ,  G02F1/0126 ,  G02F1/0311 ,  G02F1/3511 ,  G02F1/3515 ,  G02F1/3517 ,  G02F1/365 ,  G02F2203/13

Abstract: A terahertz-wave element includes a waveguide (2, 4, 5) that includes an electro-optic crystal and allows light to propagate therethrough, and a coupling member (7) that causes a terahertz wave to enter the waveguide (2, 4, 5). The propagation state of the light propagating through the waveguide (2, 4, 5) changes as the terahertz wave enters the waveguide (2, 4, 5) via the coupling member (7).

公开(公告)号：US08440971B2

公开(公告)日：2013-05-14

申请号：US13142554

申请日：2009-12-16

Applicant: Toshihiko Ouchi ,  Shintaro Kasai

Inventor： Toshihiko Ouchi ,  Shintaro Kasai

IPC: G01J5/00

CPC classification number: G01N21/3581 ,  G01N21/3563 ,  G01N21/8806 ,  G01N21/9505 ,  G01N2201/103

Abstract: In an examining apparatus or method, values of thickness and characteristic of an object, or distributions thereof can be simultaneously acquired. The examining apparatus includes a portion 9 for irradiating an object 2 with radiation, a portion 10 for detecting the radiation from the object, an acquiring portion 26, a storing portion 21 and a calculating portion 20. The acquiring portion acquires transmission time associated with detection time of radiation, and amplitude of the radiation. The storing portion beforehand stores relationship data between the transmission time and amplitude, and representative values of characteristic of the object. The calculating portion obtains values of thickness and characteristic of the object based on the transmission time, amplitude and relationship data.

Abstract translation: 在检查装置或方法中，可以同时获取对象的厚度和特征值或其分布。 检查装置包括用于对物体2照射辐射的部分9，用于检测来自物体的辐射的部分10，获取部分26，存储部分21和计算部分20.获取部分获取与检测相关的传输时间 辐射时间和辐射幅度。 存储部预先存储发送时间和振幅之间的关系数据以及对象的特征的代表值。 计算部分根据传输时间，幅度和关系数据，获得对象的厚度和特征值。