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1. 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。

2. 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。

3. 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'

4. 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'

5. 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。

6. 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。

7. 发明授权

US08571076B2 Laser light source, image display apparatus, and processing apparatus 有权
标题翻译：激光光源，图像显示装置和处理装置
公开(公告)号：US08571076B2
公开(公告)日：2013-10-29
申请号：US12411636
申请日：2009-03-26
申请人： Koichi Kusukame , Hiroyuki Furuya , Kiminori Mizuuchi , Tomoya Sugita , Akihiro Morikawa , Nobuyuki Horikawa , Kazuhisa Yamamoto , Shinichi Kadowaki
发明人： Koichi Kusukame , Hiroyuki Furuya , Kiminori Mizuuchi , Tomoya Sugita , Akihiro Morikawa , Nobuyuki Horikawa , Kazuhisa Yamamoto , Shinichi Kadowaki
IPC分类号： H01S3/10
CPC分类号： H01S3/109 , G02F1/0305 , G02F1/3775 , G02F2203/60 , H01S3/09415
摘要： A laser light source includes a fundamental laser generator that generates a fundamental laser light, a wavelength conversion element that is made of a ferroelectric crystal with a periodically poled structure and converts the fundamental laser light to a laser light having a different wavelength, a holding member that holds at least a part of an element surface of the wavelength conversion element that crosses a polarization direction of the periodically poled structure, and an insulation layer that is provided between the holding member and the element surface. Electric resistivity of the insulation layer is 1×108 Ω·cm or higher.
摘要翻译：激光光源包括产生基本激光的基波激光发生器，具有周期性极化结构的铁电晶体的波长转换元件，并将基波激光转换为具有不同波长的激光，保持部件其保持所述波长转换元件的与所述周期性极化结构的偏振方向交叉的元件表面的至少一部分，以及设置在所述保持部件和所述元件表面之间的绝缘层。绝缘层的电阻率为1×108Ω·cm以上。

8. 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。

9. 发明授权

US07565049B2 Laser light source, and two-dimensional image forming device 有权
标题翻译：激光光源，二维成像装置
公开(公告)号：US07565049B2
公开(公告)日：2009-07-21
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： G02B6/00
CPC分类号： H01S5/4025 , H01S5/024 , H01S5/4012 , H01S5/405 , H01S5/4087 , H04N9/3129
摘要： A laser light source (10) has semiconductor lasers (1) and a waveguide tube (3) for propagating emission light from each of the semiconductor lasers (1). The semiconductor lasers are arranged on the upper end on the incident surface (31) side of the waveguide tube such that the emission light (4) from each of the semiconductor lasers enters into the waveguide tube from one end surface (31) of the waveguide tube and exits from the other end surface (32) of the waveguide tube. The structure can realize a small-sized laser light source having high output and capable of outputting emission light having uniform emission light intensity distribution.
摘要翻译：激光源（10）具有用于传播来自每个半导体激光器（1）的发射光的半导体激光器（1）和波导管（3）。半导体激光器布置在波导管的入射表面（31）侧的上端，使得来自每个半导体激光器的发射光（4）从波导的一个端面（31）进入波导管并且从波导管的另一个端面（32）离开。该结构可以实现具有高输出并且能够输出具有均匀发射光强度分布的发射光的小尺寸激光光源。

10. 发明申请

US20080297690A1 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，形成偏振反射结构的方法和图像显示装置
公开(公告)号：US20080297690A1
公开(公告)日：2008-12-04
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： G02F1/03 , G02F1/13357
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，并进行高输出波长转换而不引起晶体损坏。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。

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