公开(公告)号：US06566155B1

公开(公告)日：2003-05-20

申请号：US09551353

申请日：2000-04-18

申请人： Takahiro Numai

发明人： Takahiro Numai

IPC分类号： H01L2100

CPC分类号： H01S5/10 ,  G01C19/721 ,  H01L33/005 ,  H01S5/042 ,  H01S5/105 ,  H01S5/1071 ,  H01S5/2275

摘要： A method of manufacturing a semiconductor device comprising the steps of preparing a member having at least one semiconductor layer on a substrate, forming an electrode layer on the semiconductor layer, forming an etching mask on the electrode layer, and forming a mesa profile by etching the electrode layer and the semiconductor layer.

摘要翻译： 一种制造半导体器件的方法，包括以下步骤：制备在衬底上具有至少一个半导体层的构件，在半导体层上形成电极层，在电极层上形成蚀刻掩模，并通过蚀刻形成台面形貌 电极层和半导体层。

公开(公告)号：US06275296B1

公开(公告)日：2001-08-14

申请号：US09419780

申请日：1999-10-18

申请人： Takahiro Numai

发明人： Takahiro Numai

IPC分类号： G01C1966

CPC分类号： G01C19/66 ,  H01S5/1071

摘要： An optical gyro reduces the coupling loss generated when emitted laser beams are incident upon a photo detector and the noise generated by the laser beams reentering the laser from an external point of reflection. The gyro includes a ring resonator type semiconductor laser for having laser beams transmitted circularly in opposite directions relative to each other and a terminal for detecting a beat signal, with the active layer of the semiconductor laser being ring-shaped.

摘要翻译： 光学陀螺仪减少当发射的激光束入射到光电检测器时产生的耦合损耗，并且由激光束从外部反射点重新输入激光器产生的噪声。 陀螺仪包括环形谐振器型半导体激光器，其具有相对于彼此以相反方向圆周传播的激光束，以及用于检测拍频信号的端子，半导体激光器的有源层是环形的。

公开(公告)号：US5469458A

公开(公告)日：1995-11-21

申请号：US154472

申请日：1993-11-19

申请人： Takahiro Numai

发明人： Takahiro Numai

IPC分类号： H01S5/00 ,  H01L33/06 ,  H01L33/10 ,  H01L33/16 ,  H01L33/20 ,  H01L33/30 ,  H01L33/46 ,  H01S5/183 ,  H01S5/343 ,  H01S3/19

CPC分类号： B82Y20/00 ,  H01S5/18355 ,  H01S5/0425 ,  H01S5/18341 ,  H01S5/1835 ,  H01S5/3201 ,  H01S5/34313

摘要： A surface-emitting semiconductor device having an improved definition of polarization direction of a laser light emitted. The device contains a semiconductor substrate having a surface inclined to its (100)-plane, a first semiconductor cladding layer of a first electroconduction type formed directly or through a semiconductor layer on the surface of the substrate, a semiconductor active layer formed on the first semiconductor cladding layer, and a second semiconductor cladding layer of a second electroconduction type opposite in polarity to the first electroconduction type which is formed on the semiconductor active layer. The active layer is different in lattice constant from at least one of the first and second cladding layers. A laser beam is emitted in the direction approximately perpendicular to the surface of the substrate. Preferably, an optical waveguide formed by the active layer and first and second cladding layers has a rectangular cross-section parallel to the surface of the substrate.

摘要翻译： 具有发射的激光的偏振方向的改进的表面发射半导体器件。 该器件包含具有倾斜于其（100）面的表面的半导体衬底，直接或通过衬底表面上的半导体层形成的第一导电类型的第一半导体包覆层，形成在第一衬底上的半导体活性层 半导体包层和与形成在半导体活性层上的第一导电型极性相反的第二导电类型的第二半导体包覆层。 有源层的晶格常数与第一和第二覆层中的至少一个不同。 在大致垂直于衬底表面的方向上发射激光束。 优选地，由有源层和第一和第二覆层形成的光波导具有与基板的表面平行的矩形横截面。

公开(公告)号：US06741354B2

公开(公告)日：2004-05-25

申请号：US09484183

申请日：2000-01-18

申请人： Takahiro Numai

发明人： Takahiro Numai

IPC分类号： G01C1966

CPC分类号： G01C19/66

摘要： A gyro comprising a laser device for generating laser beams to be propagated circuitally in opposite directions, wherein an electric signal is taken out from the laser device, the oscillation frequencies of the laser beams being different from each other when the laser device is held stationary.

摘要翻译： 一种陀螺仪，包括用于产生要沿相反方向电路传播的激光束的激光装置，其中从激光装置取出电信号，当激光装置保持静止时，激光束的振荡频率彼此不同。

公开(公告)号：US06586725B2

公开(公告)日：2003-07-01

申请号：US09900953

申请日：2001-07-10

申请人： Natsuhiko Mizutani ,  Takahiro Numai

发明人： Natsuhiko Mizutani ,  Takahiro Numai

IPC分类号： G01B910

CPC分类号： G01C19/661

摘要： An optical gyro is provided with a ring laser and detection unit for detecting the beat frequency of said ring laser, and comprises a first ring laser of which beat frequency decreases when the angular velocity increases in a certain direction from a standstill state and a second ring laser of which beat frequency increases when the angular velocity increases regardless of the rotating direction. The first and second ring lasers are so positioned as to be mutually independent optically.

公开(公告)号：US06559949B1

公开(公告)日：2003-05-06

申请号：US09489478

申请日：2000-01-21

申请人： Takahiro Numai

发明人： Takahiro Numai

IPC分类号： G01C1964

CPC分类号： G01C19/66

摘要： A gyro comprises a first laser adapted to generate a first laser beam propagating in a single direction as a main mode of operation, and a second laser adapted to generate a second laser beam propagating in a single direction as a main mode of operation. The gyro may have a beat signal detection means and a photodetector for receiving the first and second laser beams. The first laser beam and the second laser beam have different respective oscillation frequencies and interfere with each other.

摘要翻译： 陀螺仪包括适于产生以单个方向传播的第一激光束作为主要操作模式的第一激光器，以及适于产生以单个方向传播的第二激光束作为主要操作模式的第二激光器。 陀螺仪可以具有拍频信号检测装置和用于接收第一和第二激光束的光电检测器。 第一激光束和第二激光束具有不同的各自的振荡频率并相互干扰。

公开(公告)号：US06493089B2

公开(公告)日：2002-12-10

申请号：US09419781

申请日：1999-10-18

申请人： Takahiro Numai

发明人： Takahiro Numai

IPC分类号： G01C1966

CPC分类号： G01C19/66 ,  H01S5/1071

摘要： An optical gyro reduces the coupling loss produced when a laser beam is incident upon a photodetector and the noise generated by the laser beam returning to the laser from an external point of reflection. The gyro includes a ring resonator type semiconductor laser for having laser beams transmitted circularly in opposite directions relative to each other. The angle &agr; formed by the surface of the active layer of the semiconductor laser and the lateral surface of each of the low refractive index layers sandwiching the active layer and showing a refractive index lower than the active layer satisfies the requirement of 75°

摘要翻译： 光学陀螺仪减少当激光束入射到光电检测器上时产生的耦合损耗，并且由激光束从外部反射点返回到激光器产生的噪声。 陀螺仪包括环形谐振器型半导体激光器，其具有相对于彼此在相反方向圆周方向传播的激光束。 由半导体激光器的有源层的表面形成的角度α和夹着有源层的低折射率层的每个低折射率层的侧表面，并且显示比活性层低的折射率，满足75°< 105°在低折射率层的整个周边。 陀螺仪检测在半导体激光器中产生的拍频信号。

公开(公告)号：US4899361A

公开(公告)日：1990-02-06

申请号：US181137

申请日：1988-04-13

申请人： Takahiro Numai

发明人： Takahiro Numai

IPC分类号： G02B6/12 ,  G02F1/025 ,  G02F1/225 ,  G02F1/25 ,  H01L31/14 ,  H01S3/02 ,  H01S5/00 ,  H01S5/02 ,  H01S5/06 ,  H01S5/0625 ,  H01S5/50

CPC分类号： H01S5/5045 ,  H01S5/06256 ,  H01S5/06258

摘要： An optical filter device having an amplifying region including an active layer for amplifying light of a first predetermined wavelength band, a noise absorption region including a noise absorption layer which is transparent for light of the first predetermined wavelength band, and which absorbs light of a second predetermined wavelength band, a distributed feedback region positioned between the amplifying layer and noise absorption regions, and including no active layer and no noise absorption layer, electrodes provided on the top and back surfaces of the amplifying, noise absorption, and distributed feedback regions, and non-reflection structures provided on both outer end facets of the amplifying and noise absorption regions, wherein the amplifying, noise absorption, and distributed feedback regions include a common optical guiding layer, and a bandgap energy of the noise absorption layer is smaller than that of the optical guiding layer, and is larger than that of the active layer.

公开(公告)号：US06665330B1

公开(公告)日：2003-12-16

申请号：US09659842

申请日：2000-09-11

申请人： Takahiro Numai

发明人： Takahiro Numai

IPC分类号： H01S3083

CPC分类号： G01C19/66 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48464 ,  H01S5/0224 ,  H01S5/02272 ,  H01S5/02276 ,  H01S5/0425 ,  H01S5/1071 ,  H01S5/22 ,  H01S5/32341 ,  H01S5/327 ,  H01S2301/176 ,  H01L2924/00014 ,  H01L2924/00

摘要： A semiconductor device having a semiconductor ring laser and a base member with an electrode. The semiconductor ring laser has a circularly formed ridge optical waveguide. A concave region exists at the inside or outside of the waveguide. An electrode layer is provided over the waveguide and concave region, and the electrode and the electrode layer are electrically connected to each other through a conductive member existing in the concave region.

摘要翻译： 具有半导体环形激光器的半导体器件和具有电极的基底部件。 半导体环形激光器具有圆形脊状光波导。 在波导的内部或外部存在凹区。 电极层设置在波导和凹区上方，并且电极和电极层通过存在于凹入区域中的导电构件彼此电连接。

公开(公告)号：US06656759B1

公开(公告)日：2003-12-02

申请号：US09572834

申请日：2000-05-18

申请人： Koichiro Nakanishi ,  Takahiro Numai

发明人： Koichiro Nakanishi ,  Takahiro Numai

IPC分类号： H01L2100

CPC分类号： H01S5/22 ,  B82Y20/00 ,  G01C19/661 ,  H01S5/0425 ,  H01S5/1071 ,  H01S5/2086 ,  H01S5/2213 ,  H01S5/2275 ,  H01S5/34306

摘要： A method of producing a semiconductor element is disclosed which comprises a step of preparing a semiconductor element member comprising a projection region on a substrate, a step of embedding an upper surface of the substrate, and upper and side surfaces of the projection region in a potting material, an exposure step of exposing the upper surface of the projection region, a deposition step of depositing an electrode material on the upper surface of the projection region, and a step of removing the potting material.

摘要翻译： 公开了一种制造半导体元件的方法，该方法包括制备半导体元件部件的步骤，该半导体元件部件包括在基板上的突起区域，嵌入基板的上表面的步骤，以及投影区域的上表面和侧表面在封装 材料，暴露突起区域的上表面的曝光步骤，在投影区域的上表面上沉积电极材料的沉积步骤和去除灌封材料的步骤。