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51. 发明授权

US5835650A Optical apparatus and method for producing the same 失效
公开(公告)号：US5835650A
公开(公告)日：1998-11-10
申请号：US746718
申请日：1996-11-15
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 , G02B6/36
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.

52. 发明授权

US5452312A Short-wavelength laser light source and optical information processing aparatus 失效
标题翻译：短波长激光光源和光信息处理装置
公开(公告)号：US5452312A
公开(公告)日：1995-09-19
申请号：US322190
申请日：1994-10-12
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： G02F1/377 , G11B7/125 , H01S3/109 , H01S5/06 , H01S5/14 , H01S3/30
CPC分类号： G11B7/127 , G02F1/3775 , G11B7/126 , H01S3/109 , H01S5/0092 , H01S5/022 , H01S5/02248 , H01S5/0428 , H01S5/06216 , H01S5/141
摘要： A short-wavelength laser light source having a semiconductor laser for emitting laser light is provided. The light source includes a power supply for driving the semiconductor laser and thereby causing the semiconductor laser to emit a fundamental wave, a polarization inversion-type light-wavelength converting device for generating from the fundamental wave a harmonic wave having a shorter wavelength than the fundamental wave; and laser light feedback means for feeding light of the fundamental wave lying in a selected wavelength region back to the semiconductor laser, thereby achieving oscillation wavelength locking. Said power supply supplies to the semiconductor laser a high-frequency power containing AC components oscillating in a cycle short enough to cause the semiconductor laser to emit the fundamental wave in the form of pulsed laser light.
摘要翻译：提供了具有用于发射激光的半导体激光器的短波长激光光源。光源包括用于驱动半导体激光器并由此使半导体激光器发射基波的电源，偏振反转型光波长转换装置，用于从基波产生具有比基波短的波长的谐波波; 以及用于将位于所选波长区域中的基波的光馈送回到半导体激光器的激光反馈装置，从而实现振荡波长锁定。所述电源向半导体激光器提供包含AC组件的高频功率，所述AC组件在足够短的周期内振荡，以使得半导体激光器以脉冲激光的形式发射基波。

53. 发明授权

US06693936B2 Wavelength-variable semiconductor laser, optical integrated device utilizing the same, and production method thereof 失效
标题翻译：波长可变半导体激光器，利用其的光学集成器件及其制造方法
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。

54. 发明授权

US06590915B1 Optical apparatus and method for producing the same 失效
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.

55. 发明授权

US06519077B1 OPTICAL WAVEGUIDE, OPTICAL WAVELENGTH CONVERSION DEVICE, METHOD FOR PRODUCING THE SAME, SHORT WAVELENGTH LIGHT GENERATION APPARATUS USING THE SAME, OPTICAL INFORMATION PROCESSING APPARATUS USING THE SAME, COHERENT LIGHT GENERATION APPARATUS USING THE SAME, AND OPTICAL SYSTEM USING THE SAME 有权
标题翻译：光波导，光波长转换装置，其生产方法，使用该光学波长的光生成装置，使用该光学信息处理装置的光信号处理装置，使用该光学信号处理装置的相干光生成装置和使用该光学系统的光学系统
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。

56. 发明授权

US06333943B1 Optical device, laser beam source, laser apparatus and method of producing optical device 失效
标题翻译：光学装置，激光束源，激光装置及其制造方法
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。

57. 发明授权

US06298075B1 Optical apparatus and method for producing the same 失效
标题翻译：光学装置及其制造方法
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。

58. 发明授权

US6069904A Optical apparatus and method for producing the same 失效
标题翻译：光学装置及其制造方法
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。

59. 发明授权

US6067393A Optical apparatus and method for producing the same 有权
标题翻译：光学装置及其制造方法
公开(公告)号：US6067393A
公开(公告)日：2000-05-23
申请号：US137631
申请日：1998-08-21
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 , G02B6/36
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 surmount; 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; 半导体激光芯片安装在超越上; 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。

60. 发明授权

US6002515A Method for producing polarization inversion part, optical wavelength conversion element using the same, and optical waveguide 失效
标题翻译：用于制造偏振反转部分的方法，使用其的光波长转换元件和光波导
公开(公告)号：US6002515A
公开(公告)日：1999-12-14
申请号：US5994
申请日：1998-01-12
申请人： Kiminori Mizuuchi , Kazuhisa Yamamoto , Yasuo Kitaoka
发明人： Kiminori Mizuuchi , Kazuhisa Yamamoto , Yasuo Kitaoka
IPC分类号： G02F1/35 , G02F1/355 , G02F1/37 , G02F1/377
CPC分类号： G02F1/3558 , G02F1/3775 , G02F1/37 , G02F2001/3548
摘要： A method for manufacturing a polarization inversion part on the substrate of a ferroelectric crystal that is suitable for the use as a light wavelength conversion element or the like. A deep polarization inversion part or a homogeneous polarization inversion part is formed by one or more of: reinverting polarization in a part of the polarization inversion part; inverting polarization while applying a voltage also in the perpendicular direction to the polarization direction of a crystal; forming a low resistance part between electrodes to which an voltage is applied; inverting polarization from a electrode formed in a concave part on the surface of a substrate; applying a high voltage utilizing a insulating film; or the like. A substrate comprising a polarization inversion part manufactured by such methods is useful not only for a light wavelength conversion element but also for a diffxaction element and is also useful for a short wavelength light generator and an optical pick-up comprising a light wavelength conversion element.
摘要翻译：在适合用作光波长转换元件等的铁电晶体的基板上制造极化反转部的方法。深偏振反转部分或均匀偏振反转部分由偏振反转部分的一部分中的反转偏振中的一个或多个形成; 在与晶体的偏振方向垂直的方向上施加电压时反相偏振; 在施加电压的电极之间形成低电阻部分; 从形成在基板的表面上的凹部的电极反转极化; 利用绝缘膜施加高电压; 或类似物。包括通过这种方法制造的偏振反转部分的衬底不仅对于光波长转换元件而且对于掺杂元件也是有用的，并且也可用于短波长发光器和包括光波长转换元件的光学拾取器。

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