公开(公告)号：US20070165685A1

公开(公告)日：2007-07-19

申请号：US10584091

申请日：2004-12-21

申请人： Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Ken'ichi Kasazumi ,  Isao Kidoguchi

发明人： Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Ken'ichi Kasazumi ,  Isao Kidoguchi

IPC分类号： H01S3/00 ,  H01S5/00 ,  H01S3/097

CPC分类号： H01S5/0625 ,  H01S5/0287 ,  H01S5/0425 ,  H01S5/0624 ,  H01S5/1064 ,  H01S5/22

摘要： According to the present invention, in a semiconductor laser device (10) having different facet reflectivities, an electrode disposed on a stripe ridge (107a) is divided into four electrode parts (1), (2), (3), and (4), and a larger injection current is injected to an electrode part that is closer to a light emission facet side. According to this semiconductor laser device, a carrier density distribution in an active layer that is opposed to the stripe ridge can be matched to a light intensity distribution in the active layer, thereby preventing degradation in high output characteristic due to destabilization of transverse mode and reduction in gain which are caused by spatial hole burning.

摘要翻译： 根据本发明，在具有不同面反射率的半导体激光器件（10）中，设置在条纹脊（107a）上的电极被分成四个电极部分（1），（2），（3）和（ 4），并且将更大的注入电流注入到更靠近发光小面侧的电极部分。 根据该半导体激光器件，与有源层相对的有源层中的载流子密度分布可以与有源层中的光强度分布相匹配，从而防止由于横模的不稳定性而导致的高输出特性的劣化和还原 在空间孔燃烧引起的增益。

公开(公告)号：US20070147456A1

公开(公告)日：2007-06-28

申请号：US10582334

申请日：2004-12-09

申请人： Tomoya Sugita ,  Kiminori Mizuuchi ,  Ken'ichi Kasazumi ,  Akihiro Morikawa ,  Kazuhisa Yamamoto

发明人： Tomoya Sugita ,  Kiminori Mizuuchi ,  Ken'ichi Kasazumi ,  Akihiro Morikawa ,  Kazuhisa Yamamoto

IPC分类号： H01S5/00

CPC分类号： H01S5/4025 ,  H01S5/024 ,  H01S5/4012 ,  H01S5/405 ,  H01S5/4087 ,  H04N9/3129

摘要： A laser light source (10) of the present invention is provided with plural semiconductor lasers (1), and a waveguide (3) in which light beams emitted from the respective semiconductor lasers (1) propagate, and the plural semiconductor lasers are disposed at an upper end of an incident end face (31) of the waveguide so that the light beams (4) emitted from the respective semiconductor lasers enter the waveguide from the end face (31) of the waveguide and are emitted from another end face (32) of the waveguide. Thereby, it is possible to realize a high-power and compact laser light source which is able to output a light beam having a uniform light intensity distribution.

摘要翻译： 本发明的激光光源（10）具备多个半导体激光器（1）和从各半导体激光器（1）发射的光束传播的波导管（3），并且将多个半导体激光器配置在 波导的入射端面（31）的上端，使得从各个半导体激光器发射的光束（4）从波导的端面（31）进入波导，并从另一端面（32 ）。 由此，能够实现能够输出具有均匀的光强度分布的光束的高功率，小型化的激光光源。

公开(公告)号：US20050254393A1

公开(公告)日：2005-11-17

申请号：US10525676

申请日：2003-08-18

申请人： Kiminori Mizuuchi ,  Kazuhisa Yamamoto

发明人： Kiminori Mizuuchi ,  Kazuhisa Yamamoto

IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/125 ,  G11B7/135

CPC分类号： G11B7/1381 ,  G11B7/00455 ,  G11B7/127 ,  G11B7/1353 ,  G11B2007/0013

摘要： An optical information processing device is provided with a multi-wavelength light source that emits light of two or more different wavelengths, a filter portion that separates the light emitted from the multi-wavelength light source according to wavelength, and a condensing lens that focuses a plurality of lights separated by the filter portion on the same point for multi-wavelength recording.

摘要翻译： 光信息处理装置具有发射两个或多个不同波长的光的多波长光源，根据波长分离从多波长光源发射的光的滤光器部分和聚焦透镜 在同一点上由滤波器部分分离的多个光用于多波长记录。

公开(公告)号：US20050111335A1

公开(公告)日：2005-05-26

申请号：US10969919

申请日：2004-10-22

申请人： Kenichi Kasazumi ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

发明人： Kenichi Kasazumi ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

IPC分类号： G11B7/00 ,  G11B7/0065 ,  G11B7/13

CPC分类号： G11B7/131 ,  G11B7/0065

摘要： A holographic optical information playback apparatus for playing information that is recorded on a recording medium in a form of interference fringes is provided with a two-dimensional photoreceptor array which receives a two-dimensional array of light spots that is diffracted at the recording medium due to application of reference light onto the medium, and outputs a playback signal including information recorded on the recording medium. The two-dimensional photoreceptor array has a photoreceptor section in which plural photoreceptor cells for detecting the intensities of received lights are arranged so that a photoreceptive area corresponding to the light spot array is formed, and assigns plural photoreceptor cells are assigned to each light spot in the light spot array according to the irradiation position of the light spot array, whereby the light intensity of one light sport is detected using the output signals from the plural photoreceptor cells.

摘要翻译： 用于播放以干涉条纹形式记录在记录介质上的信息的全息光学信息重放设备设置有二维感光体阵列，其接收在记录介质处衍射的光点的二维阵列，因为由于 将参考光施加到介质上，并输出包括记录在记录介质上的信息的重放信号。 二维感光体阵列具有感光体部，其中配置有用于检测接收光的强度的多个感光体细胞，使得形成与光点阵列对应的感光区域，并将多个感光体细胞分配给每个光点 根据光点阵列的照射位置的光点阵列，由此使用来自多个感光体单元的输出信号来检测一次光线运动的光强度。

公开(公告)号：US06693936B2

公开(公告)日：2004-02-17

申请号：US09907192

申请日：2001-07-17

申请人： Yasuo Kitaoka ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

发明人： Yasuo Kitaoka ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

IPC分类号： H01S500

CPC分类号： H01S5/06256 ,  G02B6/12004 ,  G02B6/4202 ,  G02B6/4224 ,  G02B6/423 ,  G02B6/4231 ,  G02B6/4238 ,  G02B6/4249 ,  G02F1/3775 ,  H01L2224/48463 ,  H01S5/0092 ,  H01S5/0224 ,  H01S5/02268 ,  H01S5/02272 ,  H01S5/02284 ,  H01S5/02446 ,  H01S5/125

摘要： A wavelength-variable semiconductor laser includes: a submount; and a semiconductor laser chip being mounted onto the submount and having at least an active layer region and a distributed Bragg reflection region, wherein the semiconductor laser chip is mounted onto the submount in such a manner that an epitaxial growth surface thereof faces the submount and a heat transfer condition of the active layer region is different from a heat transfer condition of the distributed Bragg reflection region. Moreover, an optical integrated device includes at least a semiconductor laser and an optical waveguide device both mounted on a submount, wherein the semiconductor laser is the wavelength-variable semiconductor laser as set forth above.

摘要翻译： 波长可变半导体激光器包括：基座; 以及将半导体激光芯片安装在所述基座上并且具有至少一个有源层区域和分布式布拉格反射区域，其中所述半导体激光器芯片以使其外延生长表面面向所述基座的方式安装到所述基座上，并且 有源层区域的传热条件与分布式布拉格反射区域的传热条件不同。 此外，光学集成器件至少包括半导体激光器和安装在基座上的光波导器件，其中半导体激光器是如上所述的波长可变半导体激光器。

公开(公告)号：US06590915B1

公开(公告)日：2003-07-08

申请号：US09612091

申请日：2000-07-07

申请人： Yasuo Kitaoka ,  Kazuhisa Yamamoto ,  Makoto Kato ,  Tomoaki Uno ,  Kiminori Mizuuchi ,  Kenichi Nishiuchi

发明人： Yasuo Kitaoka ,  Kazuhisa Yamamoto ,  Makoto Kato ,  Tomoaki Uno ,  Kiminori Mizuuchi ,  Kenichi Nishiuchi

IPC分类号： H01S300

CPC分类号： H01S5/0687 ,  G02B6/42 ,  G02B6/4201 ,  G02B6/4213 ,  G02B6/4215 ,  G02B6/4224 ,  G02B6/4257 ,  G02B6/4271 ,  G02B6/4272 ,  G02F1/37 ,  H01S5/0092 ,  H01S5/02252 ,  H01S5/02476 ,  H01S5/0612 ,  H01S5/06256 ,  H01S5/06837

摘要： A light generating apparatus includes: a submount; a semiconductor laser chip mounted on the submount; a substrate which is mounted on the submount and includes an optical waveguide; and a substance having a predetermined thickness which is disposed between the semiconductor laser chip and the substrate. In an oscillation wavelength stabilizing apparatus for a light source, the light source is a semiconductor laser which includes: an active region for providing gain; and a distributed Bragg reflection (DBR) region for controlling an oscillation wavelength. The apparatus includes a control section which monotonously varies, in a first direction, a DBR current to be input to the DBR region while detecting the oscillation wavelength of an output light of the semiconductor laser so as to detect a DBR current value Io corresponding to a predetermined wavelength value, and then monotonously varies the DBR current in a second direction which is opposite the first direction beyond the detected value Io, and then monotonously varies the DBR current in the first direction again to set the DBR current at the detected value Io, thereby fixing the oscillation wavelength of the semiconductor laser chip at the predetermined wavelength value.

公开(公告)号：US06519077B1

公开(公告)日：2003-02-11

申请号：US09534134

申请日：2000-03-23

申请人： Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Yasuo Kitaoka ,  Toshifumi Yokoyama

发明人： Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Yasuo Kitaoka ,  Toshifumi Yokoyama

IPC分类号： G02F1365

CPC分类号： G02F1/365 ,  G02B6/1345 ,  G02B6/14 ,  G02B6/32 ,  G02B6/4204 ,  G02B6/4246 ,  G02B2006/121 ,  G02B2006/12169 ,  G02F1/3775 ,  G02F2001/3548

摘要： An optical waveguide of the present invention includes: a nonlinear optical crystal; a first ion exchange region provided in the vicinity of a portion of a surface of the nonlinear optical crystal; and a second ion exchange region provided in the surface of the nonlinear optical crystal. The second ion exchange region covers a greater area of the surface than an area covered by the first ion exchange region. The second ion exchange region includes a region having an extent of 0.02 &mgr;m to 0.2 &mgr;m along a depth direction in which an ion exchange ratio varies along the depth direction.

摘要翻译： 本发明的光波导包括：非线性光学晶体; 设置在所述非线性光学晶体的表面的一部分附近的第一离子交换区域; 以及设置在所述非线性光学晶体的表面中的第二离子交换区域。 第二离子交换区域覆盖比由第一离子交换区域覆盖的区域更大的表面积。 第二离子交换区域沿离子交换比沿深度方向变化的深度方向具有0.02μm〜0.2μm的范围的区域。

公开(公告)号：US06333943B1

公开(公告)日：2001-12-25

申请号：US08973380

申请日：1998-03-16

申请人： Kazuhisa Yamamoto ,  Kiminori Mizuuchi ,  Yasuo Kitaoka ,  Makoto Kato

发明人： Kazuhisa Yamamoto ,  Kiminori Mizuuchi ,  Yasuo Kitaoka ,  Makoto Kato

IPC分类号： H01S500

CPC分类号： G02F1/37 ,  G02F1/3558 ,  G02F1/3775 ,  G02F2203/60 ,  H01S3/09415 ,  H01S3/109 ,  H01S3/23 ,  H01S5/0092 ,  H01S5/02 ,  H01S5/40 ,  H01S5/4087

摘要： After forming domain inverted layers 3 in an LiTaO3 substrate 1, an optical waveguide is formed. By performing low-temperature annealing for the optical wavelength conversion element thus formed, a stable proton exchange layer 8 is formed, where an increase in refractive index generated during high-temperature annealing is lowered, thereby providing a stable optical wavelength conversion element. Thus, the phase-matched wavelength becomes constant, and variation in harmonic wave output is eliminated. Consequently, with respect to an optical wavelength conversion element utilizing a non-linear optical effect a highly reliable element is provided.

摘要翻译： 在LiTaO 3基板1中形成畴反转层3之后，形成光波导。 通过对由此形成的光波长转换元件进行低温退火，形成稳定的质子交换层8，在高温退火时产生的折射率的升高降低，从而提供稳定的光波长转换元件。 因此，相位匹配波长变得恒定，并且消除了谐波输出的变化。 因此，对于利用非线性光学效应的光波长转换元件，提供了高度可靠的元件。

公开(公告)号：US06298075B1

公开(公告)日：2001-10-02

申请号：US09480217

申请日：2000-01-10

申请人： Yasuo Kitaoka ,  Kazuhisa Yamamoto ,  Makoto Kato ,  Kiminori Mizuuchi ,  Kenichi Nishiuchi

发明人： Yasuo Kitaoka ,  Kazuhisa Yamamoto ,  Makoto Kato ,  Kiminori Mizuuchi ,  Kenichi Nishiuchi

IPC分类号： H01S300

CPC分类号： H01S5/0687 ,  G02B6/42 ,  G02B6/4201 ,  G02B6/4213 ,  G02B6/4215 ,  G02B6/4224 ,  G02B6/4257 ,  G02B6/4271 ,  G02B6/4272 ,  G02F1/37 ,  H01S5/0092 ,  H01S5/02252 ,  H01S5/02476 ,  H01S5/0612 ,  H01S5/06256 ,  H01S5/06837

摘要： A light generating apparatus includes: a submount; a semiconductor laser chip mounted on the submount; a substrate which is mounted on the submount and includes an optical waveguide; and a substance having a predetermined thickness which is disposed between the semiconductor laser chip and the substrate. In an oscillation wavelength stabilizing apparatus for a light source, the light source is a semiconductor laser which includes: an active region for providing gain; and a distributed Bragg reflection (DBR) region for controlling an oscillation wavelength. The apparatus includes a control section which monotonously varies, in a first direction, a DBR current to be input to the DBR region while detecting the oscillation wavelength of an output light of the semiconductor laser so as to detect a DBR current value Io corresponding to a predetermined wavelength value, and then monotonously varies the DBR current in a second direction which is opposite the first direction beyond the detected value Io, and then monotonously varies the DBR current in the first direction again to set the DBR current at the detected value Io, thereby fixing the oscillation wavelength of the semiconductor laser chip at the predetermined wavelength value.

摘要翻译： 一种发光装置，包括：底座; 安装在底座上的半导体激光芯片; 基板，其安装在所述基座上并且包括光波导; 以及设置在半导体激光芯片和基板之间的具有预定厚度的物质。 在用于光源的振荡波长稳定装置中，光源是半导体激光器，其包括：用于提供增益的有源区; 以及用于控制振荡波长的分布式布拉格反射（DBR）区域。 该装置包括控制部分，其在检测半导体激光器的输出光的振荡波长的同时，在第一方向上单向地变化要输入到DBR区域的DBR电流，以便检测对应于所述半导体激光器的DBR电流值Io 预定波长值，然后在与第一方向相反的第二方向上将DBR电流单调变化超过检测值Io，然后再次单向地改变第一方向上的DBR电流，以将DBR电流设定在检测值Io， 从而将半导体激光器芯片的振荡波长固定在预定波长值。

公开(公告)号：US6069904A

公开(公告)日：2000-05-30

申请号：US910097

申请日：1997-08-12

申请人： Yasuo Kitaoka ,  Kazuhisa Yamamoto ,  Makoto Kato ,  Tomoaki Uno ,  Kiminori Mizuuchi ,  Kenichi Nishiuchi

发明人： Yasuo Kitaoka ,  Kazuhisa Yamamoto ,  Makoto Kato ,  Tomoaki Uno ,  Kiminori Mizuuchi ,  Kenichi Nishiuchi

IPC分类号： G02B6/42 ,  G02F1/37 ,  H01S5/022 ,  H01S5/06 ,  H01S5/0625 ,  H01S5/0683 ,  H01S5/0687 ,  H01S3/13 ,  H01S3/00 ,  H01S3/08

CPC分类号： H01S5/0687 ,  G02B6/42 ,  G02B6/4201 ,  G02B6/4257 ,  G02B6/4272 ,  H01S5/06256 ,  G02B6/4213 ,  G02B6/4215 ,  G02B6/4224 ,  G02B6/4271 ,  G02F1/37 ,  H01S5/0092 ,  H01S5/02252 ,  H01S5/02476 ,  H01S5/0612 ,  H01S5/06837

摘要： A light generating apparatus includes: a submount; a semiconductor laser chip mounted on the submount; a substrate which is mounted on the submount and includes an optical waveguide; and a substance having a predetermined thickness which is disposed between the semiconductor laser chip and the substrate. In an oscillation wavelength stabilizing apparatus for a light source, the light source is a semiconductor laser which includes: an active region for providing gain; and a distributed Bragg reflection (DBR) region for controlling an oscillation wavelength. The apparatus includes a control section which monotonously varies, in a first direction, a DBR current to be input to the DBR region while detecting the oscillation wavelength of an output light of the semiconductor laser so as to detect a DBR current value I.sub.0 corresponding to a predetermined wavelength value, and then monotonously varies the DBR current in a second direction which is opposite the first direction beyond the detected value I.sub.0, and then monotonously varies the DBR current in the first direction again to set the DBR current at the detected value I.sub.0, thereby fixing the oscillation wavelength of the semiconductor laser chip at the predetermined wavelength value.

摘要翻译： 一种发光装置，包括：底座; 安装在底座上的半导体激光芯片; 基板，其安装在所述基座上并且包括光波导; 以及设置在半导体激光芯片和基板之间的具有预定厚度的物质。 在用于光源的振荡波长稳定装置中，光源是半导体激光器，其包括：用于提供增益的有源区; 以及用于控制振荡波长的分布式布拉格反射（DBR）区域。 该装置包括控制部分，其在检测半导体激光器的输出光的振荡波长的同时，在第一方向上单向变化要输入到DBR区域的DBR电流，以便检测对应于该半导体激光器的DBR电流值I0 预定波长值，然后在与第一方向相反的第二方向上将DBR电流单调变化超过检测值I0，然后再次将DBR电流在第一方向上单调变化，以将DBR电流设定在检测值I0， 从而将半导体激光器芯片的振荡波长固定在预定波长值。