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1. 发明授权

US07515625B2 Multipath laser apparatus using a solid-state slab laser rod 失效
标题翻译：使用固态板激光棒的多径激光设备
公开(公告)号：US07515625B2
公开(公告)日：2009-04-07
申请号：US11471493
申请日：2006-06-21
申请人： Mitsuo Ishizu
发明人： Mitsuo Ishizu
IPC分类号： H01S3/06
CPC分类号： H01S3/0606 , H01S3/0615 , H01S3/0623 , H01S3/0625 , H01S3/063 , H01S3/08095 , H01S3/093 , H01S3/1611 , H01S3/1643 , H01S3/1653 , H01S3/2325
摘要： A laser apparatus has a multipath solid-state slab laser rod and an excitation source that excites it, and uses a solid-state slab laser rod that has a trapezoid or parallelogram-shaped cross section along the optical path, that is provided with six or more faces and that has a light amplifying effect or a nonlinear optical effect. The light that is incident to the laser rod is totally reflected at the incident-light end face and exit end face of the laser rod, passes back through the interior of the laser rod a plurality of times, e.g., three times, and then exits. For light amplification, excitation light is irradiated from the side face. In addition, for nonlinear optical effects, the z-axis of a nonlinear optical crystal is disposed so as to be orthogonal to the plane of the optical path, and the temperature of the solid-state slab laser rod is kept at the phase-matching temperature. This laser apparatus of this configuration solves drawbacks of prior-art laser rods so that the high conversion rate from excitation light to laser light is obtained at a high laser gain.
摘要翻译：激光装置具有多径固态板激光棒和激发源，并且使用沿着光路具有梯形或平行四边形横截面的固态平板激光棒，其设有六个或更多的面孔，具有光放大效果或非线性光学效果。入射到激光棒的光在激光棒的入射光端面和出射端面处被全反射，多次反复穿过激光棒的内部，例如三次，然后退出。对于光放大，从侧面照射激发光。此外，对于非线性光学效应，非线性光学晶体的z轴被布置成与光路的平面正交，并且固态平板激光棒的温度保持在相位匹配温度。这种配置的激光装置解决了现有技术的激光棒的缺点，从而在高激光增益下获得从激发光到激光的高转换率。

2. 发明申请

US20070019700A1 Method and apparatus for multiple, discrete wavelength laser diode pumping of solid state laser materials 审中-公开
标题翻译：用于固体激光材料的多个离散波长激光二极管泵浦的方法和装置
公开(公告)号：US20070019700A1
公开(公告)日：2007-01-25
申请号：US11186962
申请日：2005-07-22
申请人： Dallas Barr , John Nettleton
发明人： Dallas Barr , John Nettleton
IPC分类号： H01S3/091 , H01S3/094 , H01S3/08 , H01S3/092
CPC分类号： H01S3/09415 , H01S3/0602 , H01S3/1611 , H01S3/1643 , H01S3/1653 , H01S5/1215 , H01S5/141
摘要： Diode pumped solid state lasers normally require the temperature of the diodes to be controlled so that the diode laser wavelength will match a strong absorption line in the solid state material. This requires heating and cooling equipment that adds size, weight, cost and complexity to the laser design. For military lasers that must operate over a large temperature range but still must be carried by a soldier, the weight and cost issues are severe. The invention makes use of multiple wavelengths, Bragg grating reflectors, to force a diode laser to operate at discrete wavelengths matched to the desired absorption wavelengths of the solid state laser material. The multiple discrete wavelengths are chosen to span a range of temperatures larger than that which can be accommodated by a single wavelength grating. Thus, as the diode temperature varies, the pump wavelength will switch among preselected wavelengths to assure consistent and efficient pumping over a predetermined temperature range.
摘要翻译：二极管泵浦固态激光器通常需要控制二极管的温度，使得二极管激光波长将匹配固态材料中的强吸收线。这需要加热和冷却设备，增加激光设计的尺寸，重量，成本和复杂性。对于必须在较大温度范围内运行但仍需由士兵携带的军用激光器，重量和成本问题是严重的。本发明利用多个波长布拉格光栅反射器，迫使二极管激光器在与固态激光材料的期望吸收波长匹配的离散波长下工作。选择多个离散波长以跨越比单个波长光栅可以容纳的温度大的温度范围。因此，随着二极管温度变化，泵浦波长将在预选波长之间切换，以确保在预定温度范围内一致而有效的泵浦。

3. 发明授权

US07079557B1 Intracavity OPO laser 失效
标题翻译：腔内OPO激光
公开(公告)号：US07079557B1
公开(公告)日：2006-07-18
申请号：US10677826
申请日：2003-10-02
申请人： Yusong Yin , Nan Yin , Frank F. Wu
发明人： Yusong Yin , Nan Yin , Frank F. Wu
IPC分类号： H01S3/10
CPC分类号： H01S3/1083 , H01S3/08086 , H01S3/09415 , H01S3/109 , H01S3/11 , H01S3/113 , H01S3/1611 , H01S3/1653
摘要： A laser having an optical parametric oscillator for providing a preselected wavelength beam is provided. A nonlinear crystal cut for phase matching condition preferably cut for noncritical phase matching conditions for the fundamental beam wavelength and the preselected wavelength beam is located in both the optical parametric oscillator cavity and laser resonator cavity.The optical axis of the laser resonator and the optical axis of the optical parametric oscillator cavity are at least partially separate and partially overlap. The laser crystal is located in the laser resonator cavity but not in the optical parametric oscillator cavity. Each end of the OPO nonlinear crystal that intersects the optical axes has a Brewster cut for both the fundamental and preselected wavelength beams so that the fundamental and preselected wavelength beams incident on the nonlinear crystal at approximately the Brewster angle and pass through without substantial reflection loss.The fundamental wavelength beam is directed into the optical parametric oscillator cavity and incidents on nonlinear crystal having a Brewster cut at each end for fundamental and preselected wavelength beam without substantial reflection loss. A portion of the fundamental wavelength beam is partially converted to a preselected wavelength beam. The fundamental beam and the preselected wavelength beams are reflected back through the nonlinear crystal. Preselected wavelength beam is separated from the fundamental wavelength beam.
摘要翻译：提供具有用于提供预选波长光束的光学参量振荡器的激光器。针对基波束波长和预选波长光束的非临界相位匹配条件优选地切割用于相位匹配条件的非线性晶体切割位于光学参量振荡器腔和激光谐振腔中。激光谐振器的光轴和光参量振荡器腔的光轴至少部分分开并部分重叠。激光晶体位于激光谐振腔中，但不在光参量振荡器腔中。与光轴相交的OPO非线性晶体的每个端部都具有基波和预选波长光束的布鲁斯特切割，使得基波和预选波长光束以大约布鲁斯特角入射到非线性晶体上并通过而没有实质的反射损耗。基本波长光束被引导到光参量振荡器腔中，并且在具有布鲁斯特的非线性晶体上的事件在每个端部切割用于基波和预选波长波束而没有实质的反射损耗。基波长光束的一部分被部分地转换成预选的波长光束。基波束和预选波长光束通过非线性晶体反射回来。预选波长光束与基波长光束分离。

4. 发明申请

US20050094682A1 Solid state system and method for generating ultraviolet light 失效
标题翻译：用于产生紫外线的固态系统和方法
公开(公告)号：US20050094682A1
公开(公告)日：2005-05-05
申请号：US10924723
申请日：2004-08-24
申请人： William Tulloch , Alan Fry , Jeremy Weston , William White , Eric Wilson
发明人： William Tulloch , Alan Fry , Jeremy Weston , William White , Eric Wilson
IPC分类号： G02F1/35 , H01S3/094 , H01S3/109 , H01S3/16 , H01S3/23 , H01S3/10
CPC分类号： H01S3/10092 , G02F2001/354 , H01S3/094038 , H01S3/109 , H01S3/1625 , H01S3/1636 , H01S3/1653
摘要： Infrared laser light generated by a solid state diode pumped transform-limited Ti:Sapphire laser is converted to UV wavelengths using third and fourth harmonic generation systems. The resulting output is tunable between approximately 187 and 333 nm. The combined solid state Ti:Saapphire laser and harmonic generation system includes feedback mechanisms for improved power and wavelength stability. The system can operate at pulse repetition rates of several thousand Hertz.
摘要翻译：由固态二极管泵浦变换限制的Ti：蓝宝石激光器产生的红外激光器使用第三和第四谐波发生系统转换为UV波长。所得到的输出可在约187和333 nm之间调节。组合的固态Ti：Saapphire激光器和谐波发生系统包括用于改善功率和波长稳定性的反馈机制。该系统可以以几千赫兹的脉冲重复率运行。

5. 发明申请

US20050058174A1 Solid state laser using a semiconductor pumping light source 审中-公开
标题翻译：使用半导体泵浦光源的固态激光器
公开(公告)号：US20050058174A1
公开(公告)日：2005-03-17
申请号：US10810693
申请日：2004-03-29
申请人： Minoru Kadoya
发明人： Minoru Kadoya
IPC分类号： H01S3/04 , H01S3/06 , H01S3/07 , H01S3/08 , H01S3/0941 , H01S3/14 , H01S3/16
CPC分类号： H01S3/0604 , H01S3/0405 , H01S3/0617 , H01S3/07 , H01S3/09415 , H01S3/109 , H01S3/117 , H01S3/1611 , H01S3/1643 , H01S3/1653 , H01S3/1671 , H01S3/1673
摘要： In an end pumped or axially pumped solid state laser using a laser diode as a pumping light source, the laser crystal comprises a plurality of individual laser crystals arranged along an axial direction that have progressive higher concentrations of rare earth irons toward the output end. By thus arranging the individual laser crystals containing varying concentrations of rare earth ions, the absorption of laser for each length can be made uniform so that the tolerance for a high power pumping light is increased, and the laser output can be maximized without damaging the laser crystal.
摘要翻译：在使用激光二极管作为泵浦光源的泵浦或轴向泵浦固体激光器的末端中，激光晶体包括沿着轴向布置的多个单独的激光晶体，其具有逐渐更高浓度的稀土铁朝向输出端。通过这样布置含有不同浓度的稀土离子的各个激光晶体，可以使每个长度的激光的吸收均匀，从而增加对大功率泵浦光的耐受性，并且可以使激光输出最大化而不损坏激光水晶。

6. 发明申请

US20050018723A1 Method of stabilizing laser beam, and laser beam generation system 审中-公开
标题翻译：稳定激光束的方法和激光束发生系统
公开(公告)号：US20050018723A1
公开(公告)日：2005-01-27
申请号：US10834199
申请日：2004-04-29
申请人： Masayuki Morita , Kazuya Hayashibe , Yoshiyuki Akiyama , Hisashi Masuda
发明人： Masayuki Morita , Kazuya Hayashibe , Yoshiyuki Akiyama , Hisashi Masuda
IPC分类号： H01S3/137 , H01S3/094 , H01S3/098 , H01S3/1055 , H01S3/13 , H01S3/16
CPC分类号： H01S3/1118 , H01S3/10046 , H01S3/1055 , H01S3/1305 , H01S3/1611 , H01S3/1653 , H01S3/1673
摘要： A laser beam generation system comprises a solid state laser oscillator excited by an excitation beam, and a Q switch for pulsating laser oscillation by use of a saturable absorber, wherein the optical path length of a laser resonator is variable. The pulse of a laser beam generated from the laser beam generation system is detected, and variation of the optical path length of the laser resonator is controlled based on a characteristic of the detected pulse, to thereby stabilize the laser beam. The laser beam generation system may further comprise resonator length regulation element for varying the optical path length of the laser resonator, and detection element for detecting the pulse laser beam outputted, wherein the optical path length of the laser resonator is regulated by the resonator length regulation element based on a characteristic of the pulse detected by the detection element.
摘要翻译：激光束产生系统包括由激发光束激发的固态激光振荡器和使用可饱和吸收器脉冲激光振荡的Q开关，其中激光谐振器的光程长度是可变的。检测从激光束产生系统产生的激光束的脉冲，并且基于检测到的脉冲的特性来控制激光谐振器的光路长度的变化，从而使激光束稳定。激光束发生系统还可以包括用于改变激光谐振器的光路长度的谐振器长度调节元件和用于检测输出的脉冲激光束的检测元件，其中激光谐振器的光路长度由谐振器长度调节基于由检测元件检测到的脉冲的特性的元件。

7. 发明授权

US06816520B1 Solid state system and method for generating ultraviolet light 失效
标题翻译：用于产生紫外线的固态系统和方法
公开(公告)号：US06816520B1
公开(公告)日：2004-11-09
申请号：US10147941
申请日：2002-05-15
申请人： William Michael Tulloch , Alan Reilly Fry , Jeremy Weston , William Eugene White , Eric Alan Wilson
发明人： William Michael Tulloch , Alan Reilly Fry , Jeremy Weston , William Eugene White , Eric Alan Wilson
IPC分类号： H01S310
CPC分类号： H01S3/10092 , G02F2001/354 , H01S3/094038 , H01S3/109 , H01S3/1625 , H01S3/1636 , H01S3/1653
摘要： Infrared laser light generated by a solid state diode pumped transform-limited Ti:Sapphire laser is converted to UV wavelengths using third and fourth harmonic generation systems. The resulting output is tunable between approximately 187 and 333 nm. The combined solid state Ti:Sapphire laser and harmonic generation system includes feedback mechanisms for improved power and wavelength stability. The system can operate at pulse repetition rates of several thousand Hertz.
摘要翻译：由固态二极管泵浦变换限制的Ti：蓝宝石激光器产生的红外激光器使用第三和第四谐波发生系统转换为UV波长。所得到的输出可在约187和333 nm之间调节。组合的固态Ti：蓝宝石激光器和谐波发生系统包括用于改善功率和波长稳定性的反馈机制。该系统可以以几千赫兹的脉冲重复率运行。

8. 发明申请

US20040050280A1 Direct write holographic printer 失效
标题翻译：直写全息打印机
公开(公告)号：US20040050280A1
公开(公告)日：2004-03-18
申请号：US10398344
申请日：2003-10-24
发明人： Alexey Rodin , Florian Michel Robert Vergnes , David Brotherton-Ratcliffe
IPC分类号： B41F001/00
CPC分类号： B41J2/435 , G02F1/3532 , G02F1/37 , G02F2001/354 , G03H1/02 , G03H1/24 , G03H1/26 , G03H2001/0212 , G03H2001/2231 , G03H2001/2263 , G03H2001/2685 , G03H2001/269 , G03H2001/2695 , G03H2210/22 , G03H2222/18 , G03H2222/33 , H01S3/08072 , H01S3/08086 , H01S3/083 , H01S3/10 , H01S3/109 , H01S3/113 , H01S3/115 , H01S3/1611 , H01S3/1653 , H01S3/2383
摘要： A direct write holographic printer for producing RGB colour reflection holograms is disclosed. A Nd:YLF crystal (1) in a laser cavity is excited to produce an emission at 1313 nm which is frequency converted by doubling to 656.5 nm and by tripling to 437.7 nm. In a separate cavity a similar Nd:YLF crystal (1a) is synchronously or asynchronously excited to produce an emission at 1047.1 nm (or at the related line of 1053 nm) which is frequency converted by doubling to 523.6 nm (or 526.5 nm). The emissions at 437.7 nm and 656.5 nm are combined co-linearly with the emission at 523.6 nm (or 526.5 nm) to produce a single RGB pulsed laser beam.
摘要翻译：公开了一种用于产生RGB彩色反射全息图的直写全息打印机。激光腔中的Nd：YLF晶体（1）被激发以产生1313nm的发射，其通过加倍至656.5nm而被频率转换并且三倍至437.7nm。在单独的腔中，类似的Nd：YLF晶体（1a）被同步或异步激发，以产生在1047.1nm（或在1053nm的相关行上）的发射，其通过加倍到523.6nm（或526.5nm）而被频率转换。在437.7nm和656.5nm处的发射与523.6nm（或526.5nm）的发射线性地组合以产生单个RGB脉冲激光束。

9. 发明授权

US06490309B1 Laser-diode-pumped laser apparatus in which Pr3+-doped laser medium is pumped with GaN-based compound laser diode 失效
标题翻译：用GaN基复合激光二极管泵浦Pr3 +掺杂激光介质的激光二极管泵浦激光装置
公开(公告)号：US06490309B1
公开(公告)日：2002-12-03
申请号：US09621241
申请日：2000-07-21
申请人： Yoji Okazaki , Takayuki Katoh
发明人： Yoji Okazaki , Takayuki Katoh
IPC分类号： H01S30941
CPC分类号： B82Y20/00 , H01S3/0941 , H01S3/109 , H01S3/1613 , H01S3/1653 , H01S5/02248 , H01S5/024 , H01S5/02415 , H01S5/02438 , H01S5/32341 , H01S5/34333
摘要： In a laser-diode-pumped laser apparatus, a solid-state laser crystal doped with at least one rare-earth element including at least Pr3+ is pumped with a laser diode, and emits laser light. In the first aspect, the laser diode has an active layer made of one of an InGaN, InGaNAs, and GaNAs materials, and an optical wavelength conversion element converts the solid-state laser light into ultraviolet laser light by wavelength conversion. In the second aspect, the solid-state laser crystal is codoped with Pr3+ and at least one of Er3+, Ho3+, Dy3+, Eu3+, Sm3+, Pm3+, and Nd3+. In the third aspect, instead of the solid-state laser crystal, an optical fiber codoped with Pr3+ and at least one of Er3+, Ho3+, Dy3+, Eu3+, Sm3+, Pm3+, and Nd3+ is pumped with a GaN-based compound laser diode. In the fourth aspect, an optical fiber codoped with Pr3+ and at least one of Er3+, Ho3+, Dy3+, Eu3+, Sm3, Pm3, and Nd3+ amplifies incident light having a wavelength which is identical with a wavelength of fluorescence generated by pumping of the optical fiber with a GaN-based compound laser diode.
摘要翻译：在激光二极管泵浦激光装置中，掺杂有至少一种至少含有Pr3 +的稀土元素的固体激光晶体用激光二极管泵浦并发射激光。在第一方面中，激光二极管具有由InGaN，InGaNA和GaNA材料中的一种构成的有源层，并且光波长转换元件通过波长转换将固态激光转换成紫外激光。在第二方面中，固态激光晶体与Pr3 +和Er3 +，Ho3 +，Dy3 +，Eu3 +，Sm3 +，Pm3 +和Nd3 +中的至少一种共掺杂。在第三方面中，代替固态激光晶体，用GaN基复合激光二极管泵浦与Pr3 +和Er3 +，Ho3 +，Dy3 +，Eu3 +，Sm3 +，Pm3 +和Nd3 +中的至少一种共用的光纤。在第四方面中，与Pr3 +和Er3 +，Ho3 +，Dy3 +，Eu3 +，Sm3，Pm3和Nd3 +中的至少一种共用的光纤放大了与通过泵浦光学产生的荧光波长相同的波长的入射光光纤与GaN基复合激光二极管。

10. 发明申请

US20020031151A1 Multi-wavelengths infrared laser 有权
标题翻译：多波长红外激光
公开(公告)号：US20020031151A1
公开(公告)日：2002-03-14
申请号：US09862913
申请日：2001-05-22
申请人： University of Central Florida
发明人： Anna M. Tabirian , Hans P. Jenssen , Scott Buchter , Hanna J. Hoffman
IPC分类号： H01S003/14 , H01S003/091 , H01S003/092
CPC分类号： H01S3/16 , H01S3/00 , H01S3/161 , H01S3/1646 , H01S3/1653
摘要： A long wavelength infrared laser system is disclosed where radiation from laser sources such as frequency-doubled Nd:YAG or a Cr:LiSAF is used to resonantly pump a gain medium consisting of a holmium-doped fluoride crystal having a high active ion concentration. The laser pump source has a pulse duration that may be short enough to gain switch a particular transition or long enough to allow end-pumping with high energy densities without damage. The gain material has an absorption approximately resonant with the pump source wavelength, and the dopant concentration is selected to maximize absorption strength for a given excitation. The output radiation from the laser system consists of one or more wavelengths including, in particular 3.9 nullm but also other infrared wavelgths such as 1.4 nullm, 2.9 nullm and 3.4 nullm., several of which may be produced simultaneousely from the same laser material through the mechanism of cascade transitions.
摘要翻译：公开了一种长波长红外激光系统，其中使用诸如倍频Nd：YAG或Cr：LiSAF的激光源的辐射来共振地泵浦由具有高活性离子浓度的掺杂钬的氟化物晶体组成的增益介质。激光泵浦源具有可能足够短的脉冲持续时间，以获得特定的转变或足够长的时间，以允许具有高能量密度的端泵浦而不损坏。增益材料具有与泵浦源波长近似谐振的吸收，并且选择掺杂剂浓度以使给定激发的吸收强度最大化。来自激光系统的输出辐射由一个或多个波长组成，包括特别是3.9μm，而且还有其它红外波长如1.4μm，2.9μm和3.4μm，其中几个可以从相同的激光材料通过级联过渡的机制。

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