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公开(公告)号：US20100260213A1
公开(公告)日：2010-10-14
申请号：US12769943
申请日：2010-04-29
CPC分类号： H01S3/0675 , H01S3/005 , H01S3/06716 , H01S3/0809 , H01S3/0826 , H01S3/09415 , H01S3/1053 , H01S3/1055 , H01S3/1618 , H04N9/3129
摘要： The present invention concerns a laser light source device capable of multiwavelength oscillation. This laser light source device is provided with a laser light source; a laser cavity including a fiber, a first fiber grating provided at a side of the fiber toward the laser light source and having a plurality of reflection peaks, and a second fiber grating provided at a light emission end of the fiber and having a plurality of reflection peaks; a wavelength converter for converting a fundamental wave emitted from the laser cavity into a harmonic wave; a reflection wavelength varying unit capable of shifting the reflection wavelengths of the reflection peaks of the second fiber grating; and a controller for controlling phase matching conditions of the wavelength converter. Intervals between adjacent reflection peaks of the first fiber grating are different from those between adjacent reflection peaks of the second fiber grating.
摘要翻译： 本发明涉及能够进行多波长振荡的激光光源装置。 该激光光源装置设置有激光光源; 包括光纤的激光腔，设置在所述光纤的朝向所述激光光源的一侧并具有多个反射峰的第一光纤光栅，以及设置在所述光纤的发光端的第二光纤光栅，并且具有多个 反射峰; 用于将从激光腔发射的基波转换为谐波的波长转换器; 反射波长变化单元，其能够移动第二光纤光栅的反射峰的反射波长; 以及用于控制波长转换器的相位匹配条件的控制器。 第一光纤光栅的相邻反射峰之间的间隔与第二光纤光栅的相邻反射峰之间的间隔不同。
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82.发明申请WAVELENGTH CONVERSION ELEMENT, LASER LIGHT SOURCE, TWO-DIMENSIONAL IMAGE DISPLAY AND LASER PROCESSING SYSTEM 有权波长转换元件，激光光源，二维图像显示和激光加工系统公开(公告)号：US20100165452A1
公开(公告)日：2010-07-01
申请号：US11997099
申请日：2006-07-26
CPC分类号： G02F1/3558 , C30B15/00 , C30B29/30 , G02F1/3551 , G02F1/37 , G02F2202/20 , G02F2203/21
摘要： A wavelength conversion element is provided with a substrate including a nonlinear optical single crystal having a periodically poled structure, the visible light transmittance of the substrate is 85% or higher when ultraviolet light is irradiated to the substrate, and laser light having an average output of 1 W or more is outputted by shortening the wavelength of laser light having a wavelength of 640 nm to 2000 nm. By improving visible light transmission characteristics when the ultraviolet light is irradiated in this way, the breakdown of crystal can be prevented and the stabilization of output characteristics at high output can be realized. As a result, the absorption of green light induced by ultraviolet light can also be suppressed, and the saturation of output and the breakdown of crystal can be avoided.
摘要翻译： 波长转换元件设置有包括具有周期性极化结构的非线性光学单晶的基板，当对基板照射紫外光时，基板的可见光透射率为85％以上，平均输出的激光为 通过缩短波长为640nm〜2000nm的激光的波长来输出1W以上。 通过以这种方式照射紫外线时的可见光透射特性的改善，能够防止晶体的破坏，能够实现高输出的输出特性的稳定化。 结果，也可以抑制由紫外光引起的绿光的吸收，可以避免输出饱和和晶体破坏。
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83.发明授权Wavelength conversion optical device, laser light source, and image display optical device 有权波长转换光学器件，激光光源和图像显示光学器件公开(公告)号：US07583431B2
公开(公告)日：2009-09-01
申请号：US11884885
申请日：2006-02-22
CPC分类号： G02F1/37 , G02F2001/372
摘要： A wavelength conversion optical device is provided with a fundamental wave light source (301) which outputs a fundamental wave (L11) including a P polarized light and an S polarized light that are perpendicular to each other, and two wavelength conversion mechanisms (303a, 303b) each having a polarization inversion formation part which wavelength-converts the fundamental wave (L11) to generate harmonic waves, and the first-stage wavelength conversion mechanism (303a) performs wavelength conversion of the P polarized light of the fundamental wave (L11) while the second-stage wavelength conversion mechanism (303b) performs wavelength conversion of the S polarized light of the fundamental wave (L11), whereby absorption of a second harmonic wave (green light) due to a third harmonic wave (ultraviolet light) is reduced, and stability and reliability of the wavelength-converted light output are enhanced, thereby providing a wavelength conversion optical device which can output a wavelength-converted light capable of improving the image quality of the displayed image.
摘要翻译： 波长转换光学元件设置有输出包括彼此垂直的P偏振光和S偏振光的基波（L11）的基波光源（301）和两个波长转换机构（303a，303b） ）分别具有波长转换基波（L11）以产生谐波的偏振反转形成部，第一级波长转换机构（303a）进行基波的P偏振光（L11）的波长转换，同时 第二级波长转换机构（303b）进行基波的S偏振光（L11）的波长转换，由此减少由于三次谐波（紫外线）引起的二次谐波（绿光）的吸收， 提高了波长转换光输出的稳定性和可靠性，从而提供能够输出波长c的波长转换光学装置 能够改善显示图像的图像质量的转换光。
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公开(公告)号：US20090161700A1
公开(公告)日：2009-06-25
申请号：US12096056
申请日：2006-12-08
IPC分类号： H01S3/30
CPC分类号： H01S3/0675
摘要： A fiber laser includes: a solid laser fiber doped with a rare earth element; a first grating fiber provided at one end portion of both ends along an optical axis direction of the solid laser fiber; and a first reflective element provided at the other end portion of the solid laser fiber. The first and second reflective elements constitute a resonator structure for the solid laser fiber; the first grating fiber Bragg-reflects only two polarizations of a first polarization having a first wavelength, and a second polarization having a second wavelength different from the first wavelength and being mutually orthogonal with the first polarization in a polarization direction; and at least one reflection wavelength of light which is reflected at the first reflective element and either one wavelength of the two polarizations which are Bragg-reflected at the first grating fiber coincide with each other.
摘要翻译： 光纤激光器包括：掺杂有稀土元素的固体激光光纤; 第一光栅光纤，沿着固体激光光纤的光轴方向设置在两端的一端部; 以及设置在固体激光光纤的另一端部的第一反射元件。 第一和第二反射元件构成用于固体激光光纤的谐振器结构; 第一光栅光纤布拉格反射仅具有第一波长的第一偏振的两个偏振和具有与第一波长不同的第二波长并且在偏振方向上与第一偏振相互正交的第二偏振; 并且在第一光栅光纤处被布拉格反射的在第一反射元件处反射的光的至少一个反射波长和两个偏振的一个波长彼此一致。
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85.发明申请Wavelength Conversion Optical Device, Laser Light Source, and Image Display Optical Device 有权波长转换光学器件，激光光源和图像显示光学器件公开(公告)号：US20080158638A1
公开(公告)日：2008-07-03
申请号：US11884885
申请日：2006-02-22
IPC分类号： G02F1/37
CPC分类号： G02F1/37 , G02F2001/372
摘要： A wavelength conversion optical device is provided with a fundamental wave light source (301) which outputs a fundamental wave (L11) including a P polarized light and an S polarized light that are perpendicular to each other, and two wavelength conversion mechanisms (303a,303b) each having a polarization inversion formation part which wavelength-converts the fundamental wave (L11) to generate harmonic waves, and the first-stage wavelength conversion mechanism (303a) performs wavelength conversion of the P polarized light of the fundamental wave (L11) while the second-stage wavelength conversion mechanism (303b) performs wavelength conversion of the S polarized light of the fundamental wave (L11), whereby absorption of a second harmonic wave (green light) due to a third harmonic wave (ultraviolet light) is reduced, and stability and reliability of the wavelength-converted light output are enhanced, thereby providing a wavelength conversion optical device which can output a wavelength-converted light capable of improving the image quality of the displayed image.
摘要翻译： 波长转换光学装置具备输出包括彼此垂直的P偏振光和S偏振光的基波（L 11）的基波光源（301），以及两个波长转换机构（303a ，303b）各自具有对基波（L 11）进行波长转换以产生谐波的偏振反转形成部，并且第一级波长转换机构（303a）进行基波的P偏振光的波长转换 波长（L 11），而第二级波长转换机构（303b）进行基波的S偏振光（L11）的波长转换，由此由于三次谐波而产生的二次谐波（绿光）的吸收 波长（紫外线）降低，波长转换光输出的稳定性和可靠性提高，从而提供可以超出波长的波长转换光学装置 使用能够改善所显示图像的图像质量的波长转换光。
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86.发明授权公开(公告)号：US08068274B2
公开(公告)日：2011-11-29
申请号：US12241525
申请日：2008-09-30
申请人： Tetsuro Mizushima , Hiroyuki Furuya , Koichi Kusukame , Kiminori Mizuuchi , Kazuhisa Yamamoto , Nobuyuki Horikawa , Shinichi Shikii , Tatsuo Itoh
发明人： Tetsuro Mizushima , Hiroyuki Furuya , Koichi Kusukame , Kiminori Mizuuchi , Kazuhisa Yamamoto , Nobuyuki Horikawa , Shinichi Shikii , Tatsuo Itoh
CPC分类号： H01S3/005 , G02F1/353 , G02F2001/3542 , H01S3/0092
摘要： A wavelength conversion laser device includes a laser light source which emits a laser beam, two reflective surfaces which reflect therefrom a laser beam, a wavelength converter provided between the two reflective surfaces, which converts a laser beam into a wavelength-converted laser beam, and condensing optics which condense the laser beams to be injected between the two reflective surfaces, wherein at least one of the two reflective surfaces has a curvature for reflecting a laser beam to be re-injected into the wavelength converter between the two reflective surfaces repeatedly while forming multi paths of laser beams injected into the wavelength converter at different incident angles, and the condensing optics are arranged to disperse beam waists of the laser beams in the wavelength converter, which reciprocate between the two reflective surfaces.
摘要翻译： 波长转换激光器件包括发射激光束的激光源，从其反射激光束的两个反射表面，设置在两个反射表面之间的波长转换器，其将激光束转换成波长转换的激光束;以及 聚光光学器件，其将要注入的激光束聚集在两个反射表面之间，其中两个反射表面中的至少一个具有用于反射在两个反射表面之间重新注入到波长转换器中的激光束的曲率，同时形成 以不同的入射角注入到波长转换器中的激光束的多路径，以及聚光光学器件被布置成分散波长转换器中的激光束的波束束，波长转换器在两个反射表面之间往复运动。
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公开(公告)号：US07965916B2
公开(公告)日：2011-06-21
申请号：US12161667
申请日：2006-12-05
CPC分类号： G03B21/2033 , G02B6/001 , G03B21/2093 , G03B33/12 , H01S3/0675 , H01S3/06754 , H01S3/094003 , H01S3/094007 , H01S3/2383
摘要： There is a problem that in the connection portion between a rare-earth-doped double clad fiber and a single mode fiber, pumping light leaks in a portion having the coating, and the fiber generates heat partially with this energy and deteriorates. Also, there is another problem that the output is limited as the oscillation wavelength becomes shorter. Accordingly, in a laser light source device formed by combining a fiber laser and a fiber amplifier, by using the residual pumping light in the fiber laser as the pumping light in the fiber amplifier, it is possible to enhance the reliability by preventing the fiber deterioration caused by the residual pumping light. Further, by amplifying the output in the fiber amplifier in the latter stage without any limitation on the pumping light output, it is possible to increase an output of the oscillation light.
摘要翻译： 存在在稀土掺杂双包层光纤和单模光纤之间的连接部分中的泵浦光在具有涂层的部分中泄漏的问题，并且光纤以该能量部分地发热并劣化。 此外，还存在随着振荡波长变短而输出受到限制的另外一个问题。 因此，在通过组合光纤激光器和光纤放大器形成的激光光源装置中，通过使用光纤激光器中的残余泵浦光作为光纤放大器中的泵浦光，可以通过防止光纤劣化来提高可靠性 由残余泵浦光引起。 此外，通过在后级放大光纤放大器中的输出而对泵浦光输出没有任何限制，可以增加振荡光的输出。
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公开(公告)号：US07848011B2
公开(公告)日：2010-12-07
申请号：US11886849
申请日：2006-03-24
IPC分类号： G02F2/02
CPC分类号： G02F1/37 , G02F2202/06 , G02F2202/20
摘要： A wavelength converting element which does not generate crystal destruction and output saturation of a second harmonic due to a third harmonic generated inside the element is provided. The wavelength converting element receives a fundamental wave which is light having a wavelength (lambda), outputs the second harmonic which is light having a wavelength (lambda/2), and has a crystal including at least one element selected from a group composed of Sc, Y, La, Ce, Pr, Eu, Gd, Ho, Yb, and Lu as an additive.
摘要翻译： 提供了不会由于在元件内产生的三次谐波而产生二次谐波的晶体破坏和输出饱和的波长转换元件。 波长转换元件接收具有波长（λ）的光的基波，输出具有波长（λ/ 2）的光的二次谐波，并且具有包括从由Sc构成的组中选择的至少一种元素的晶体 ，Y，La，Ce，Pr，Eu，Gd，Ho，Yb和Lu作为添加剂。
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公开(公告)号：US20080316590A1
公开(公告)日：2008-12-25
申请号：US12142428
申请日：2008-06-19
IPC分类号： G02F1/377
CPC分类号： G02F1/3775 , G02F2001/3503 , G02F2001/3507 , G02F2201/16
摘要： A short wavelength light source is provided with a fundamental wave light source for generating a fundamental wave, and a plurality of wavelength conversion elements made of nonlinear optical crystals having periodic polarization-inversion structures and adapted to convert a part of the fundamental wave into a second harmonic, and the nonlinear optical crystals of the plurality of wavelength conversion elements are different in material or composition. By converting the fundamental wave from the fundamental wave light source by the plurality of wavelength conversion elements, the generation of a thermal lens effect caused by light absorption can be suppressed to improve a high output resistance.
摘要翻译： 短波长光源设置有用于产生基波的基波光源，以及由具有周期性极化反转结构的非线性光学晶体制成的多个波长转换元件，并且适于将基波的一部分转换成第二 谐波，并且多个波长转换元件的非线性光学晶体的材料或组成不同。 通过由多个波长转换元件转换基波光源的基波，可以抑制由光吸收引起的热透镜效应的产生，从而提高高的输出电阻。
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公开(公告)号：US08125703B2
公开(公告)日：2012-02-28
申请号：US12532184
申请日：2008-03-19
申请人： Koichi Kusukame , Kiminori Mizuuchi , Tetsuro Mizushima , Shinichi Shikii , Hiroyuki Furuya , Kazuhisa Yamamoto , Shinichi Kadowaki
发明人： Koichi Kusukame , Kiminori Mizuuchi , Tetsuro Mizushima , Shinichi Shikii , Hiroyuki Furuya , Kazuhisa Yamamoto , Shinichi Kadowaki
CPC分类号： G02F1/3525 , G02F1/37 , G02F2001/3503 , H04N9/3161
摘要： Upon obtaining green light as wavelength converted light by causing infrared light to be incident on a wavelength conversion element, the absorption of the green light occurs due to the generation of ultraviolet light as sum-frequency light of the infrared light and the green light in the wavelength conversion element and the destruction of a crystal composing the wavelength conversion element occurs due to heat generated at this time. In a laser wavelength converter of the present invention, a condensed position of the infrared light in the wavelength conversion element is deviated from a position assumed to be optimal when the influence of the generated heat is ignored. Consequently, crystal destruction is suppressed, a high-efficiency wavelength conversion is enabled and high-output wavelength converted light exceeding several watts, which was difficult to attain in conventional wavelength conversion elements, is attained.
摘要翻译： 当通过使红外光入射到波长转换元件上获得作为波长转换光的绿光时，由于产生紫外光而发生绿光的吸收，作为红外光和绿色光的和频光 波长转换元件，并且由于此时产生的热量而产生构成波长转换元件的晶体的破坏。 在本发明的激光波长转换器中，当忽略发生的热的影响时，波长转换元件中的红外光的聚光位置被假定为最佳的位置偏离。 因此，可以抑制晶体破坏，能够实现高效率的波长转换，并且实现了在常规的波长转换元件中难以获得的超过几瓦特的高输出波长转换的光。
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