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31. 发明申请

US20060051025A1 Polarization reversal structure constructing method and optical device having polarization reversal structure 有权
标题翻译：具有偏振反转结构的偏振反转结构构造方法和光学器件
公开(公告)号：US20060051025A1
公开(公告)日：2006-03-09
申请号：US10535975
申请日：2003-11-21
申请人： Kiminori Mizuuchi , Akihiro Morikawa , Tomoya Sugita
发明人： Kiminori Mizuuchi , Akihiro Morikawa , Tomoya Sugita
IPC分类号： G02B6/26
CPC分类号： G02F1/3558
摘要： A method for forming a domain-inverted structure includes the following: using a ferroelectric substrate (1) having a principal surface substantially perpendicular to the Z axis of crystals; providing a first electrode (3) on the principal surface of the ferroelectric substrate, the first electrode having a pattern of a plurality of electrode fingers (5) that are arranged periodically; providing a counter electrode (6) on the other side of the ferroelectric substrate so as to be opposite from the first electrode; and applying an electric field to the ferroelectric substrate with the first electrode and the counter electrode, thereby forming domain-inverted regions corresponding to the pattern of the first electrode in the ferroelectric substrate. Each of the electrode fingers of the first electrode is located so that a direction from a base to a tip (5a) of the electrode finger is aligned with the Y-axis direction of the crystals of the ferroelectric substrate. This method can provide a short-period uniform domain-inverted structure.
摘要翻译：用于形成畴反转结构的方法包括：使用具有基本上垂直于晶体的Z轴的主表面的铁电体基板（1）在所述强电介质基板的主表面上设置第一电极，所述第一电极具有周期性排列的多个电极指（5）的图案; 在所述铁电体基板的另一侧设置与所述第一电极相对的对置电极（6）; 并且利用第一电极和对电极向铁电体基板施加电场，从而形成与铁电体基板中的第一电极的图案对应的畴反转区域。第一电极的每个电极指的位置使得从电极指的基部到尖端（5a）的方向与铁电体的晶体的Y轴方向一致。该方法可以提供短周期均匀域倒置结构。

32. 发明授权

US07869120B2 Laser wavelength conversion device, method for forming polarization reversed structure, and image display device 有权
标题翻译：激光波长转换装置，形成极化反转结构的方法和图像显示装置
公开(公告)号：US07869120B2
公开(公告)日：2011-01-11
申请号：US12121451
申请日：2008-05-15
申请人： Koichi Kusukame , Kiminori Mizuuchi , Tomoya Sugita , Akihiro Morikawa
发明人： Koichi Kusukame , Kiminori Mizuuchi , Tomoya Sugita , Akihiro Morikawa
IPC分类号： G02F1/35 , G02F2/02 , H01S3/10
CPC分类号： G02F1/3558 , G02F1/3525 , G02F1/3775
摘要： An object of the invention is to increase the beam diameter of a laser beam, and perform high-output wavelength conversion without causing crystal damage. A laser wavelength conversion device includes a laser wavelength conversion element for allowing incidence of a laser beam as a fundamental wave to convert a part of the fundamental wave laser beam into a wavelength-converted laser beam having a wavelength different from a wavelength of the fundamental wave laser beam. The laser wavelength conversion element includes a non-linear optical crystal having periodically polarization reversed portions. The polarization reversed portions are formed in such a manner that a region where a wavelength conversion efficiency is substantially uniform extends in a polarization direction of the non-linear optical crystal. The incident laser beam is converted into the wavelength-converted laser beam with the wavelength conversion efficiency.
摘要翻译：本发明的一个目的是增加激光束的光束直径，并且在不引起晶体损坏的情况下进行高输出波长转换。激光波长转换装置包括激光波长转换元件，用于允许激光束作为基波的入射，以将基波激光束的一部分转换成波长不同于基波波长的波长转换激光束激光束。激光波长转换元件包括具有周期性极化反转部分的非线性光学晶体。偏振反转部分以这样的方式形成，使得波长转换效率基本均匀的区域在非线性光学晶体的偏振方向上延伸。入射激光束以波长转换效率转换为波长转换激光束。

33. 发明授权

US07643524B2 Surface-emitting laser and laser projector 有权
标题翻译：表面发射激光和激光投影机
公开(公告)号：US07643524B2
公开(公告)日：2010-01-05
申请号：US10584077
申请日：2004-12-21
申请人： Kiminori Mizuuchi , Ken'ichi Kasazumi , Akihiro Morikawa
发明人： Kiminori Mizuuchi , Ken'ichi Kasazumi , Akihiro Morikawa
IPC分类号： H01S3/00
CPC分类号： H01S5/18386 , H01S3/109 , H01S5/0421 , H01S5/0425 , H01S5/0655 , H01S5/14 , H01S5/18391 , H01S5/2086 , H01S5/4062 , H01S5/423 , H01S2301/166
摘要： A surface emitting laser includes an active layer disposed on a semiconductor substrate, and a pair of upper and lower electrodes for injecting carriers into the active layer. The plane surface of the lower electrode is shaped into a star so that injection of current into the active layer from the lower electrode is carried out with a high density at the center of the lower electrode and with a low density at its periphery part. In the surface emitting laser, the density distribution of the carriers injected into the active layer corresponds to the power distribution of light inside the active layer. Thereby, hole burning due to an increase in the current density in the region of the active layer corresponding to the peripheral part of the electrode is avoided, and the transverse mode stability during high output operation is significantly enhanced to improve high-output characteristic.
摘要翻译：表面发射激光器包括设置在半导体衬底上的有源层和用于将载流子注入有源层的一对上下电极。下电极的平面被成形为星形，使得从下电极注入有源层的电流在下电极的中心处以高密度注入并在其周边部分以低密度进行。在表面发射激光器中，注入有源层的载流子的密度分布对应于有源层内的光的功率分布。因此，避免了由于与电极的周边部分相对应的有源层的区域中的电流密度的增加而导致的空穴燃烧，并且显着增强了高输出操作期间的横向模式稳定性，从而提高了高输出特性。

34. 发明授权

US07522792B2 Optical element, laser light source, and two-dimensional image forming apparatus 有权
标题翻译：光学元件，激光光源和二维图像形成装置
公开(公告)号：US07522792B2
公开(公告)日：2009-04-21
申请号：US10582341
申请日：2004-12-09
申请人： Tomoya Sugita , Kiminori Mizuuchi , Ken'ichi Kasazumi , Akihiro Morikawa
发明人： Tomoya Sugita , Kiminori Mizuuchi , Ken'ichi Kasazumi , Akihiro Morikawa
IPC分类号： G02B6/26 , G02B6/42
CPC分类号： G02B27/0994 , G02B6/4214 , G02B19/0028 , G02B19/0052 , G03B21/2033 , G03B21/208
摘要： An optical element (10) according to the present invention is provided with a plurality of waveguides (11)˜(13) and a plurality of light path coupling parts (21), (22) coupling adjacent waveguides so as to optically couple said plural waveguides serially, wherein the paths for transmitting lights through the plural waveguides are curved at the optical path coupling parts, thereby the optical elements which is converted the incident laser light into the emitted light having uniform cross-sectional light intensity distribution can give a compact structure, further a laser light source that employs the optical element, and a two-dimensional image forming apparatus that employs the laser light source can also give a compact structure.
摘要翻译：根据本发明的光学元件（10）设置有多个波导（11）〜（13）和多个耦合相邻波导的光路耦合部分（21），（22），以便将所述多个其中通过多个波导传输光的路径在光路耦合部分弯曲，由此将入射激光转换成具有均匀横截面光强度分布的发射光的光学元件可以产生紧凑的结构进一步使用该光学元件的激光光源和采用该激光光源的二维图像形成装置也可以得到紧凑的结构。

35. 发明授权

US07440161B2 Optical element and method for forming domain inversion regions 有权
标题翻译：用于形成畴反转区域的光学元件和方法
公开(公告)号：US07440161B2
公开(公告)日：2008-10-21
申请号：US10593866
申请日：2005-03-15
申请人： Akihiro Morikawa , Tomoya Sugita , Kiminori Mizuuchi
发明人： Akihiro Morikawa , Tomoya Sugita , Kiminori Mizuuchi
IPC分类号： G02F1/35
CPC分类号： G02F1/3558 , G02F2201/15
摘要： There is provided a stable optical element having a fine, uniform, and wide-ranging domain inversion structure in a ferroelectric crystal. This includes a plurality of domain inversions (101) formed on an MgO:LiNbO3 substrate (100), and a groove (102) formed on the substrate surface between the domain inversions (101). The depth T′ of substantially all of the domain inversions (101) satisfies the relation T′
摘要翻译：提供了在铁电晶体中具有精细，均匀且宽范围的畴反转结构的稳定的光学元件。这包括在MgO：LiNbO 3衬底（100）上形成的多个畴反转（101）和在畴反转（101）之间形成在衬底表面上的凹槽（102）。基本上所有的畴反转（101）的深度T'满足关于衬底厚度T的关系T'

36. 发明申请

US20070216990A1 Optical Element And Method For Forming Domain Inversion Regions 有权
标题翻译：用于形成域反转区域的光学元件和方法
公开(公告)号：US20070216990A1
公开(公告)日：2007-09-20
申请号：US10593866
申请日：2005-03-15
申请人： Akihiro Morikawa , Tomoya Sugita , Kiminori Mizuuchi
发明人： Akihiro Morikawa , Tomoya Sugita , Kiminori Mizuuchi
IPC分类号： G02F1/00
CPC分类号： G02F1/3558 , G02F2201/15
摘要： There is provided a stable optical element having a fine, uniform, and wide-ranging domain inversion structure in a ferroelectric crystal. This includes a plurality of domain inversions (101) formed on an MgO:LiNbO3 substrate (100), and a groove (102) formed on the substrate surface between the domain inversions (101). The depth T′ of substantially all of the domain inversions (101) satisfies the relation T′
摘要翻译：提供了在铁电晶体中具有精细，均匀且宽范围的畴反转结构的稳定的光学元件。这包括在MgO：LiNbO 3衬底（100）上形成的多个畴反转（101）和在畴反转（101）之间形成在衬底表面上的凹槽（102）。基本上所有的畴反转（101）的深度T'满足关于衬底厚度T的关系T'

37. 发明申请

US20070140616A1 Optical element, laser light source, and two-dimensional image forming apparatus 有权
标题翻译：光学元件，激光光源和二维图像形成装置
公开(公告)号：US20070140616A1
公开(公告)日：2007-06-21
申请号：US10582341
申请日：2004-12-09
申请人： Tomoya Sugita , Kiminori Mizuuchi , Ken'ichi Kasazumi , Akihiro Morikawa
发明人： Tomoya Sugita , Kiminori Mizuuchi , Ken'ichi Kasazumi , Akihiro Morikawa
IPC分类号： G02B6/42
CPC分类号： G02B27/0994 , G02B6/4214 , G02B19/0028 , G02B19/0052 , G03B21/2033 , G03B21/208
摘要： An optical element (10) according to the present invention is provided with a plurality of waveguides (11)˜(13) and a plurality of light path coupling parts (21), (22) coupling adjacent waveguides so as to optically couple said plural waveguides serially, wherein the paths for transmitting lights through the plural waveguides are curved at the optical path coupling parts, thereby the optical elements which is converted the incident laser light into the emitted light having uniform cross-sectional light intensity distribution can give a compact structure, further a laser light source that employs the optical element, and a two-dimensional image forming apparatus that employs the laser light source can also give a compact structure.
摘要翻译：根据本发明的光学元件（10）设置有多个波导（11）〜（13）和多个耦合相邻波导的光路耦合部分（21），（22），以便将所述多个其中通过多个波导传输光的路径在光路耦合部分弯曲，由此将入射激光转换成具有均匀横截面光强度分布的发射光的光学元件可以产生紧凑的结构进一步使用该光学元件的激光光源和采用该激光光源的二维图像形成装置也可以得到紧凑的结构。

38. 发明授权

US07230753B2 Method for forming domain-inverted structure and optical element with domain-inverted structure 有权
标题翻译：用于形成域反转结构的方法和具有域倒置结构的光学元件
公开(公告)号：US07230753B2
公开(公告)日：2007-06-12
申请号：US10535975
申请日：2003-11-21
申请人： Kiminori Mizuuchi , Akihiro Morikawa , Tomoya Sugita
发明人： Kiminori Mizuuchi , Akihiro Morikawa , Tomoya Sugita
IPC分类号： G02F1/00 , G02F2/02
CPC分类号： G02F1/3558
摘要： A method for forming a domain-inverted structure includes the following: using a ferroelectric substrate (1) having a principal surface substantially perpendicular to the Z axis of crystals; providing a first electrode (3) on the principal surface of the ferroelectric substrate, the first electrode having a pattern of a plurality of electrode fingers (5) that are arranged periodically; providing a counter electrode (6) on the other side of the ferroelectric substrate so as to be opposite from the first electrode; and applying an electric field to the ferroelectric substrate with the first electrode and the counter electrode, thereby forming domain-inverted regions corresponding to the pattern of the first electrode in the ferroelectric substrate. Each of the electrode fingers of the first electrode is located so that a direction from a base to a tip (5a) of the electrode finger is aligned with the Y-axis direction of the crystals of the ferroelectric substrate. This method can provide a short-period uniform domain-inverted structure.
摘要翻译：用于形成畴反转结构的方法包括：使用具有基本上垂直于晶体的Z轴的主表面的铁电体基板（1）在所述强电介质基板的主表面上设置第一电极，所述第一电极具有周期性排列的多个电极指（5）的图案; 在所述铁电体基板的另一侧设置与所述第一电极相对的对置电极（6）; 并且利用第一电极和对电极向铁电体基板施加电场，从而形成与铁电体基板中的第一电极的图案对应的畴反转区域。第一电极的每个电极指的位置使得从电极指的基部到尖端（5a）的方向与铁电体的晶体的Y轴方向一致。该方法可以提供短周期均匀域倒置结构。

39. 发明申请

US20090244405A1 LASER PROJECTION DEVICE AND LIQUID CRYSTAL DISPLAY TELEVISION 审中-公开
标题翻译：激光投影设备和液晶显示器电视
公开(公告)号：US20090244405A1
公开(公告)日：2009-10-01
申请号：US12088572
申请日：2006-09-26
申请人： Kazuhisa Yamamoto , Tetsuro Mizushima , Ken'ichi Kasazumi , Akihiro Morikawa , Shin-ichi Kadowaki
发明人： Kazuhisa Yamamoto , Tetsuro Mizushima , Ken'ichi Kasazumi , Akihiro Morikawa , Shin-ichi Kadowaki
IPC分类号： H04N5/74 , H01S3/04
CPC分类号： G03B21/16
摘要： Disclosed herein is a laser projection device which can keep the colors of red, blue, and green laser beams constant even in high ambient temperature. The laser projection device includes a red laser light source which emits a red laser beam, a temperature sensor for detecting the temperature of the red laser light source, and a radiating unit for radiating heat from the red laser light source to the outside based on the temperature of the red laser light source detected by the temperature sensor.
摘要翻译：这里公开了一种激光投射装置，即使在高环境温度下也能够保持红色，蓝色和绿色激光束的颜色恒定。激光投影装置包括发射红色激光束的红色激光光源，用于检测红色激光光源的温度的温度传感器，以及用于将红色激光光源的热量散发到外部的辐射单元，其基于由温度传感器检测的红色激光光源的温度。

40. 发明授权

US07494286B2 Laser module and method for manufacturing the same 失效
标题翻译：激光模块及其制造方法
公开(公告)号：US07494286B2
公开(公告)日：2009-02-24
申请号：US10534438
申请日：2003-11-12
申请人： Akihiro Morikawa , Toshifumi Yokoyama , Yasuo Kitaoka , Kazuhisa Yamamoto
发明人： Akihiro Morikawa , Toshifumi Yokoyama , Yasuo Kitaoka , Kazuhisa Yamamoto
IPC分类号： G02B6/36 , G02B6/12
CPC分类号： G02B6/42 , G02B6/4239 , G02F1/3775 , H01S5/0092 , H01S5/02208 , H01S5/02252
摘要： Efficient coupling structures are important for the realization of reliable and economical integrated optical circuit applications. This paper presents a new approach for the simulation of an anisotropic plasma etching process in silicon based on a string point model as well as the realization and the results of etching processes in silicon, silicon dioxide, silicon oxinitride and silicon nitride which are fundamental for the fabrication of coupling structures. The connections to active and passive components were fabricated using plasma etching and deposition processes which are compatible with C-MOS or BIC-MOS technology. The realized waveguide-detector structures with vertical and horizontal silicon PIN-diodes exhibit efficiencies close to 90% for wavelength below 1.1 micrometers. The diodes can detect signals of modulation frequencies of more than 400 MHz due to horizontal light injection and capacitances less than 1 pF. Fiber-detector coupling structures with U-grooves for the fiber alignment containing such detectors show similar results. The necessary accuracy of the etched depth of the U-grooves for fiber-detector coupling is +/−2 micrometers in contrast to a fiber-waveguide coupling which requires a reproducible accuracy of the process better than 0.5 micrometers. A reduction of coupling losses due to the necessary close tolerances is accomplished by waveguide tapers. The simulation, realization and results for such structures are presented in the paper. Also laser diode—fiber connections require extremely close tolerances. The design of a micro-optical bench realized by plasma etching and a selfaligning soldering process is presented, which allows such tolerances.
摘要翻译：高效的耦合结构对于实现可靠且经济的集成光电路应用很重要。本文提出了一种基于串点模型模拟硅中各向异性等离子体蚀刻工艺的新方法，以及硅，二氧化硅，氮氧化硅和氮化硅中蚀刻过程的实现和结果，这些都是基于耦合结构的制造。使用与C-MOS或BIC-MOS技术兼容的等离子体蚀刻和沉积工艺制造与主动和无源部件的连接。实现的具有垂直和水平硅PIN二极管的波导检测器结构对于低于1.1微米的波长表现出接近90％的效率。由于水平光注入和小于1 pF的电容，二极管可以检测超过400 MHz的调制频率信号。具有用于包含这种检测器的光纤对准的U形槽的光纤检测器耦合结构显示相似的结果。与光纤 - 波导耦合相比，用于光纤 - 检测器耦合的U形槽的蚀刻深度所需的精度为+/- 2微米，这需要该工艺的可重复精度优于0.5微米。由于必要的紧公差导致的耦合损耗的减小是通过波导锥度实现的。本文提出了这种结构的仿真，实现和结果。激光二极管 - 光纤连接也需要极其公差。提出了通过等离子体蚀刻和自对准焊接工艺实现的微光学台架的设计，其允许这种公差。

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