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1. 发明申请

US20180034230A1 LASER SYSTEM WITH HIGHLY EFFICIENT, SINGLE-PASS, HARMONIC GENERATOR WITH ROUND OUTPUT BEAM 审中-公开
公开(公告)号：US20180034230A1
公开(公告)日：2018-02-01
申请号：US15727313
申请日：2017-10-06
申请人： IPG Photonics Corporation
发明人： Manuel J. Leonardo , Mark A. Arbor , Gregory L. Keaton
IPC分类号： H01S3/109 , H01S3/16 , H01S3/108 , H01S3/10 , H01S3/00 , H01S3/067
CPC分类号： H01S3/109 , G02F1/353 , G02F2001/3503 , G02F2001/3507 , G02F2001/3509 , G02F2001/354 , G02F2001/372 , H01S3/0092 , H01S3/067 , H01S3/06754 , H01S3/06758 , H01S3/10084 , H01S3/10092 , H01S3/108 , H01S3/163 , H01S3/1666
摘要： A laser system includes a seed source optically coupled to an extra cavity harmonic generator system may produce a round, non-astigmatic third harmonic output beam from a nominally round, non-astigmatic, diffraction limited input fundamental beam from the seed source. The system may include a second harmonic generation crystal. An input fundamental beam size is expanded in a non-walkoff direction for the SHG crystal at the SHG crystal input face. A higher harmonic generation crystal has an output face oriented at an oblique angle of incidence in a non-walkoff direction for the HHG crystal such that an output higher harmonic beam size is contracted in this direction. Expansion of the input fundamental beam at the SHG crystal input face exceeds reduction of third harmonic beam at the HHG crystal output face.

2. 发明申请

US20060092522A1 Beam shaping prior to harmonic generation for increased stability of laser beam shaping post harmonic gereration with integrated automatic displacement and thermal beam drift compensation 失效
标题翻译：谐波产生之前的光束成形，以提高具有集成的自动位移和热束偏移补偿的激光束成形后谐波激光的稳定性
公开(公告)号：US20060092522A1
公开(公告)日：2006-05-04
申请号：US11259531
申请日：2005-10-26
申请人： Todd Lizotte
发明人： Todd Lizotte
IPC分类号： G02B27/14
CPC分类号： H01S3/005 , G02F1/37 , G02F2001/372
摘要： A radially non-symmetric beamforming element for transforming the input energy profile of an input laser beam subject to lateral shift that is variable in radial direction and magnitude into a desired output energy profile of an output laser beam. The beam forming element includes an optical element having a profile transformation function that includes a first profile transformation function for transforming the input energy profile into the desired output energy profile and a profile correction transformation function superimposed on the first profile transformation function for modifying the first profile transformation function to correct distortions in the output energy profile introduced be a lateral shift of the input laser beam. The profile correction transformation function includes a deficiency profile transformation function or a hotspot profile transformation function and an optical axis of the optical element is aligned parallel to the beam axis of the input laser beam and is offset from an unshifted beam axis of the input laser beam by a distance proportionate to a maximum expected lateral shift of the beam axis of the input laser beam.
摘要翻译：径向非对称波束形成元件，用于将经过横向偏移的输入激光束的输入能量分布变换，所述横向偏移在径向方向和幅度上可变为输出激光束的期望的输出能量分布。波束形成元件包括具有轮廓变换函数的光学元件，该光学元件包括用于将输入能量分布变换为期望输出能量分布的第一分布变换函数和叠加在第一分布变换函数上的分布校正变换函数，用于修改第一分布导出的输出能量曲线中校正失真的变换函数是输入激光束的横向偏移。轮廓校正变换函数包括缺陷轮廓变换函数或热点轮廓变换函数，并且光学元件的光轴平行于输入激光束的束轴对准，并且偏离输入激光束的未移动的束轴与输入激光束的光束轴的最大预期横向偏移成比例的距离。

3. 发明授权

US06650665B2 High-power blue and green light laser generation from high-powered diode lasers 失效
公开(公告)号：US06650665B2
公开(公告)日：2003-11-18
申请号：US10137894
申请日：2002-05-02
申请人： Ruey-Jen Hwu , John M. Worlock , Mike Willis , Robert Gwynn
发明人： Ruey-Jen Hwu , John M. Worlock , Mike Willis , Robert Gwynn
IPC分类号： H01S3058
CPC分类号： H01S5/14 , G02F1/37 , G02F2001/372 , H01S5/141 , H01S5/2036 , H01S2301/18
摘要： A mode controlling device for capturing a highly divergent, multi-mode laser beam received from a high-power broad area laser source and producing a narrow, single-mode laser beam. In one embodiment, the mode controlling device comprises a diffractive device having a nonplanar profile positioned to receive the multi-mode laser beam. The diffractive device comprises a plurality of grooves for receiving the multi-mode laser beam and diffracting light to a reflective medium, thereby creating feedback for producing a narrow, single-mode laser beam with a non-uniform intensity profile. The reflective medium may be positioned at the surface of the diffractive device; alternatively, the reflective medium may be positioned at a predetermined distance from the diffractive device.

4. 发明授权

US5191591A Laser wavelength converter 失效
标题翻译：激光波长转换器
公开(公告)号：US5191591A
公开(公告)日：1993-03-02
申请号：US729349
申请日：1991-07-12
申请人： Sota Okamoto , Kiyofumi Chikuma
发明人： Sota Okamoto , Kiyofumi Chikuma
IPC分类号： G02B6/00 , G02B5/00 , G02F1/37 , G02F1/383 , H01S3/108
CPC分类号： G02B5/001 , G02F1/383 , G02F2001/372
摘要： A stable wavelength converting apparatus comprising an axicon having a convex conical surface on that side where a second harmonics enters and a concave conical surface on the light-leaving side. This design feature can reduce the deviation of the collimation by the axicon.

5. 发明授权

US07916383B2 Wavelength conversion device 有权
标题翻译：波长转换装置
公开(公告)号：US07916383B2
公开(公告)日：2011-03-29
申请号：US12855770
申请日：2010-08-13
申请人： Takashi Yoshino
发明人： Takashi Yoshino
IPC分类号： G02F1/355 , G02F1/35 , G02F2/02
CPC分类号： G02F1/3775 , B82Y20/00 , G02F1/361 , G02F2001/372 , G02F2202/06 , G02F2202/20 , G02F2202/28
摘要： A wavelength conversion device includes a supporting body, a wavelength conversion substrate of a Z-plate of a ferroelectric single crystal with a periodic domain inversion structure formed therein and having a thickness “T” of 10 μm or more and 100 μm or less, a buffer layer provided on a bottom face of the wavelength conversion substrate, and an organic resin adhesive layer adhering the supporting body and buffer layer with a thickness of 0.6 μm or more and 2.0 μm or less.
摘要翻译：波长转换装置包括：支撑体，形成有周期性畴反转结构的铁电单晶的Z板的波长转换基板，其厚度“T”为10μm以上且100μm以下，缓冲层，设置在所述波长转换基板的底面上的有机树脂粘合剂层和粘附所述支撑体和缓冲层的厚度为0.6μm以上且2.0μm以下的有机树脂粘合剂层。

6. 发明申请

US20100321764A1 WAVELENGTH CONVERSION DEVICE 有权
标题翻译：波长转换器件
公开(公告)号：US20100321764A1
公开(公告)日：2010-12-23
申请号：US12855770
申请日：2010-08-13
申请人： Takashi YOSHINO
发明人： Takashi YOSHINO
IPC分类号： G02F1/355
CPC分类号： G02F1/3775 , B82Y20/00 , G02F1/361 , G02F2001/372 , G02F2202/06 , G02F2202/20 , G02F2202/28
摘要： A wavelength conversion device 1 includes a supporting body 8, a wavelength conversion substrate 2 of a Z-plate of a ferroelectric single crystal with a periodic domain inversion structure 5 formed therein and having a thickness “T” of 10 μm or more and 100 μm or less, a buffer layer 6 provided on a bottom face 2b of the wavelength conversion substrate 2, and an organic resin adhesive layer 7 adhering the supporting body 8 and buffer layer 6 with a thickness of 0.6 μm or more and 2.0 μm or less.
摘要翻译：波长转换装置1包括支撑体8，形成有周期性畴反转结构5的铁电单晶的Z板的波长转换基板2，其厚度“T”为10μm以上且100μm 设置在波长转换基板2的底面2b上的缓冲层6和粘附有支撑体8和0.6μm以上且2.0μm以下的厚度的缓冲层6的有机树脂粘合层7。

7. 发明申请

US20070237481A1 Wavelength converting devices 有权
标题翻译：波长转换器件
公开(公告)号：US20070237481A1
公开(公告)日：2007-10-11
申请号：US11717588
申请日：2007-03-13
申请人： Takashi Yoshino , Shoichiro Yamaguchi
发明人： Takashi Yoshino , Shoichiro Yamaguchi
IPC分类号： G02B6/10
CPC分类号： G02F1/377 , G02F2001/372 , G02F2201/063
摘要： A wavelength converting device 1 has a ferroelectric layer 6 made of a ferroelectric material. The ferroelectric layer has a wavelength converting portion A having a ridge-type optical waveguide 7, additional portions A and B provided in both sides of the wavelength converting portions, respectively, and groove-forming portions C and D between the wavelength converting portion and the additional portions, respectively. The device further has a supporting body 2 adhered to a back face 6f of the ferroelectric layer 6, and back side metal films 5A and 5B covering at least a part of a back face 6f of the additional portions 6, respectively. The back side metal film 5A or 5B does not cover the back face 6f of the wavelength converting portion 6.
摘要翻译：波长转换装置1具有由铁电体材料制成的铁电体层6。铁电层具有波长转换部分A，其具有脊型光波导7，分别设置在波长转换部分两侧的附加部分A和B以及波长转换部分和波长转换部分之间的沟槽形成部分C和D 附加部分。该装置还具有粘附到铁电层6的背面6f的支撑体2和分别覆盖附加部分6的背面6f的至少一部分的背面金属膜5A和5B。背面金属膜5A或5B不覆盖波长转换部分6的背面6f。

8. 发明申请

US20020114361A1 Apparatus for frequency conversion of a laser 失效
标题翻译：用于激光器变频的装置
公开(公告)号：US20020114361A1
公开(公告)日：2002-08-22
申请号：US10014837
申请日：2001-12-14
发明人： Gennadij Kusnezow
IPC分类号： H01S003/10
CPC分类号： G02F1/3501 , G02B27/09 , G02F2001/3503 , G02F2001/372
摘要： An apparatus for frequency conversion of a laser (1) in which one or more non-linear crystals (5, 6) are arranged in the laser beam (3), and the necessary power density is produced by an arrangement of a dedicated focussing lens (4), in the region of the focal point (14), with a collimator, which minimizes the divergence of the laser beam (3), an optical corrector, which shapes the cross section of the laser beam (3). A single focussing lens (4) is provided behind which a corrective lens (7) is arranged at an angle to the optical axis and at a distance which corresponds roughly to the sum of both focal lengths such that the focussing lens (4) and the corrective lens (7) form the collimator and the corrective lens (7) also functions as a corrector. In this way a laser is produced which is characterized by small size and a simple and economical construction.
摘要翻译：一种激光器（1）的频率转换装置，其中一个或多个非线性晶体（5,6）布置在激光束（3）中，并且通过专用聚焦透镜的布置产生所需的功率密度（4）在焦点（14）的区域中具有使激光束（3）的发散最小化的准直器，对激光束（3）的横截面进行整形的光学校正器。设置单个聚焦透镜（4），其后校正透镜（7）以与光轴成一角度并且大致对应于两个焦距之和的距离布置，使得聚焦透镜（4）和校正透镜（7）形成准直器，校正透镜（7）也用作校正器。以这种方式制造出具有小尺寸和简单且经济的结构的激光器。

9. 发明授权

US5387998A Shorter wavelength light generating apparatus in which coherent light is converted into shorter wavelength light 失效
标题翻译：较短的波长发光装置，其中相干光被转换成较短波长的光
公开(公告)号：US5387998A
公开(公告)日：1995-02-07
申请号：US76666
申请日：1993-06-15
申请人： Yasuo Kitaoka , Kazuhisa Yamamoto , Kiminori Mizuuchi , Makoto Kato
发明人： Yasuo Kitaoka , Kazuhisa Yamamoto , Kiminori Mizuuchi , Makoto Kato
IPC分类号： G02F1/37 , G02F1/35 , G02F1/377 , H01S3/06 , H01S3/1055 , H01S3/109 , H01S5/06 , H01S5/065 , H01S5/068 , H01S5/14
CPC分类号： H01S3/109 , G02F1/377 , G02F2001/3548 , G02F2001/372 , H01S5/065 , H01S5/141
摘要： A shorter wavelength light generating apparatus consists of a semiconductor laser for initially radiating various modes of coherent light including a required mode of coherent light, a reflection type of diffraction grating for diffracting and reflecting the various modes of coherent light to selectively feed back the required mode of coherent light to the semiconductor laser which is induced by the coherent light fed back to dominantly radiate the required mode of coherent light, and an optical wavelength type of wavelength converting device for converting a part of the required mode of coherent light radiated from the semiconductor laser into shorter wavelength light. The required mode of coherent light not converted is radiated to the diffraction grating. Accordingly, even though the various modes of coherent light are initially radiated from the semiconductor laser, the required mode of coherent light is dominantly radiated from the semiconductor laser after a short time. Therefore, the shorter wavelength light is stably output while stabilizing the wavelength of the shorter wavelength light.
摘要翻译：较短波长的发光装置由半导体激光器组成，用于最初辐射包括所需相干光的各种相干光的各种模式，用于衍射和反射各种相干光模式的衍射光栅的反射型，以选择性地反馈所需的模式由相干光引起的相干光反射以主要辐射相干光的所需模式;以及光波长类型的波长转换装置，用于转换从半导体辐射的所需相干光的一部分模式激光进入较短波长的光。未转换的相干光的所需模式被辐射到衍射光栅。因此，尽管相干光的各种模式最初从半导体激光器辐射，但在短时间之后主要从半导体激光器辐射相干光的所需模式。因此，在稳定短波长光的波长的同时，较短波长的光稳定地输出。

10. 发明授权

US5195159A Optical wavelength converter device 失效
标题翻译：光波长转换器
公开(公告)号：US5195159A
公开(公告)日：1993-03-16
申请号：US805327
申请日：1991-12-10
申请人： Naota Uenishi , Takafumi Uemiya
发明人： Naota Uenishi , Takafumi Uemiya
IPC分类号： G02B3/04 , G02B5/00 , G02B6/34 , G02B27/09 , G02B27/30 , G02F1/37 , G02F1/383
CPC分类号： G02B5/001 , G02B6/34 , G02F1/383 , G02F2001/372
摘要： A light source device that converts a beam of light radiated from an optical fiber-type second-harmonic generating element to a parallel beam of light filled with a bundle of rays up to a central portion of the parallel beam by causing a portion of the beam of light to pass through an apex of a conical surface. The light source device is unlikely to be affected by the spherical aberrations of members constituting an optical system such as lenses, which makes it unnecessary to make the component members of the optical sysem special, thereby simplifying the optical system.

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