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21. 发明授权

US06646793B2 High gain laser amplifier 有权
标题翻译：高增益激光放大器
公开(公告)号：US06646793B2
公开(公告)日：2003-11-11
申请号：US09736997
申请日：2000-12-14
申请人： Hans W. Bruesselbach , Alexander A. Betin , David S. Sumida
发明人： Hans W. Bruesselbach , Alexander A. Betin , David S. Sumida
IPC分类号： H01S300
CPC分类号： H01S3/063 , H01S3/0602 , H01S3/0612 , H01S3/0617 , H01S3/1618 , H01S3/1643
摘要： A high gain optical amplifier and method. Generally, the inventive amplifier includes a first crystal having an axis and a first index of refraction and a second crystal bonded to the first crystal about the axis and having a second index of refraction. The first index is higher than the second index such that light through the first crystal is totally internally reflected. In the illustrative embodiment, the first crystal is Yb:YAG with an index of approximately 1.82, the second crystal is Sapphire with an index of approximately 1.78, and the axis is the propagation axis. The invention is, in its preferred embodiment, a light guide fabricated out of crystalline materials, diffusion bonded together. If the core of the light guide is doped with laser ions, high gain amplifiers made be designed and operable over a large étendue. With a judicious choice of the laser crystal and cladding materials, shape, and bonding technique, the guided amplifier is much less susceptible to parasitic oscillation than amplifiers constructed in accordance with conventional teachings. The clad core is also able to handle larger thermal load without breakage than can an unclad core.
摘要翻译：高增益光放大器和方法。通常，本发明的放大器包括具有轴和第一折射率的第一晶体，以及围绕轴线键合到第一晶体并具有第二折射率的第二晶体。第一指数高于第二指数，使得通过第一晶体的光完全内部反射。在说明性实施例中，第一晶体为Yb：YAG，折射率约为1.82，第二晶体为蓝宝石，折射率约为1.78，轴为传播轴。在其优选实施例中，本发明是由结晶材料制成的光导，扩散结合在一起。如果光导的核心掺杂有激光离子，则高增益放大器可以在大的衰减范围内设计和操作。通过明智地选择激光晶体和包层材料，形状和结合技术，与根据常规教导构建的放大器相比，引导放大器不太容易发生寄生振荡。包芯可以处理较大的热负载，而不会破损。

22. 发明授权

US06246711B1 Integrating diode pump cavity for an Er, Yb:glass laser 有权
标题翻译：将二极管泵腔用于Er，Yb：玻璃激光器
公开(公告)号：US06246711B1
公开(公告)日：2001-06-12
申请号：US09276282
申请日：1999-03-25
申请人： Robert D. Stultz , Julie L. Bentley , David S. Sumida , Hans W. Bruesselbach
发明人： Robert D. Stultz , Julie L. Bentley , David S. Sumida , Hans W. Bruesselbach
IPC分类号： H01S308
CPC分类号： H01S3/0612 , H01S3/061 , H01S3/0621 , H01S3/0625 , H01S3/0627 , H01S3/07 , H01S3/094084 , H01S3/0941 , H01S3/1608 , H01S3/1618 , H01S3/17 , H01S3/175
摘要： A multi-pass, integrating diode pump cavity for an Er,Yb:glass laser is provided. The diode pump cavity comprises two end members of undoped glass sandwiching a center section of glass of the same composition as that of the two end members but doped with erbium and ytterbium ions. The two end members are each provided with a curved outer surface, which is coated with a reflective coating. At least one of the curved surfaces includes a slit through the reflective coating for transmission of pump laser light from a pump diode laser bar into the cavity. The diode pump cavity is small, compact, efficient, and eye-safe.
摘要翻译：提供了一种用于Er，Yb：玻璃激光器的多通道积分二极管泵腔。二极管泵腔包括未掺杂玻璃的两个端部构件，其夹持与两个端部构件相同组成的玻璃中心部分，但掺杂有铒和镱离子。两个端部构件均设置有弯曲的外表面，其被涂覆有反射涂层。至少一个弯曲表面包括通过反射涂层的狭缝，用于将泵激光从泵浦二极管激光棒传输到空腔中。二极管泵腔体积小巧，紧凑，高效，安全可靠。

23. 发明授权

US5974061A Laser pump cavity apparatus with improved thermal lensing control, cooling, and fracture strength and method 失效
$Laser pump cavity apparatus with improved thermal lensing control, cooling, and fracture strength and method$
标题翻译：激光泵腔设备具有改进的热透镜控制，冷却和断裂强度和方法
公开(公告)号：US5974061A
公开(公告)日：1999-10-26
申请号：US994423
申请日：1997-12-19
申请人： Robert W. Byren , David S. Sumida , Hans W. Bruesselbach
发明人： Robert W. Byren , David S. Sumida , Hans W. Bruesselbach
IPC分类号： H01S3/042 , H01S3/06 , H01S3/08 , H01S3/094 , H01S3/0941 , H01S3/04
CPC分类号： H01S3/094 , H01S3/0941 , H01S3/042 , H01S3/0606 , H01S3/0612 , H01S3/08072 , H01S3/08095 , H01S3/094084
摘要： A laser pump cavity apparatus with integral concentrator provides improved thermal lensing control, cooling and fracture strength. The concentrator is formed around a doped solid-state laser medium by diffusion bonding, using a material different than the doped laser medium and with a substantially lower index of refraction, higher thermal conductivity and higher stress fracture strength than the doped laser crystal. The concentrator has a top cladding layer with a cylindrical focusing surface and a bottom cladding layer with a cylindrical focusing surface and may have edge cladding layers. Cold plates, each of which also has one cylindrical surface, are placed in thermal contact with the cylindrical surfaces of the top and bottom cladding layers. The cylindrical surfaces preferably have hyperbolic or quasi-hyperbolic shape. The laser pump cavity apparatus is preferably pumped with several laser diode arrays in directions transverse to a laser beam axis. The pumplight is injected from the laser diode arrays through the edge cladding layers in directions toward line foci of the cylindrical surfaces. The concentrator top and bottom cladding material is preferably sapphire and the doped solid-state laser medium is preferably Yb:YAG. The edge cladding layers are preferably thermally insulating to maintain a one-dimensional heat flow condition within the doped laser medium, by forming them of a material that has lower thermal conductivity than the material used for the top and bottom cladding layers. The edge cladding layers are preferably made of undoped YAG material
摘要翻译：具有整体浓缩器的激光泵腔设备提供改进的热透镜控制，冷却和断裂强度。集中器通过扩散接合形成在掺杂的固态激光介质周围，使用与掺杂的激光介质不同的材料，并且具有比掺杂的激光晶体低得多的折射率，更高的热导率和更高的应力断裂强度。集中器具有具有圆柱形聚焦表面的顶部包层和具有圆柱形聚焦表面的底部包层，并且可以具有边缘包覆层。它们中的每一个也具有一个圆柱形表面，与顶部和底部包层的圆柱形表面热接触。圆柱形表面优选具有双曲线或准双曲线形状。激光泵腔装置优选地在与激光束轴线横切的方向上用几个激光二极管阵列泵送。该激光二极管阵列沿着朝向圆柱形表面的线焦点的方向通过边缘包覆层注入。集中器顶部和底部包层材料优选是蓝宝石，并且掺杂的固态激光介质优选为Yb：YAG。边缘覆层优选是隔热的，以通过形成具有比用于顶部和底部包层的材料低的导热性的材料来保持掺杂的激光介质内的一维热流条件。边缘覆层优选由未掺杂的YAG材料制成

24. 发明授权

US4734911A Efficient phase conjugate laser 失效
标题翻译：高效相位共轭激光器
公开(公告)号：US4734911A
公开(公告)日：1988-03-29
申请号：US839475
申请日：1986-03-14
申请人： Hans W. Bruesselbach
发明人： Hans W. Bruesselbach
IPC分类号： H01S3/10 , H01S3/23 , H01S3/30 , H01S3/13
CPC分类号： H01S3/2333 , H01S3/10076
摘要： A laser apparatus (10) utilizing a master oscillator power amplifier configuration wherein a master oscillator (12) provides a source of low energy, high phase front quality, and high spectral purity radiation, injected into at least one lasing medium gain element (14) disposed along an optical path. Coupling means (16) is positioned to selectively couple a predetermined percentage of the master oscillator (12) radiation into the gain element (14) medium while preventing all but a predetermined percentage of any amplified radiation exiting the gain element (14) from re-entering the master oscillator (12). Phase conjugation means (20) is disposed along the optical path on the opposite side of the gain element (14) as the coupling means (16), for reflecting the phase conjugate of laser radiation incident thereon. Delay means (26) positioned between the gain element (14) and the phase conjugation means (16) assures that radiation pulses coupled along the optical path traverse and substantially exit from the gain element (14), toward the phase conjugation means (20), before any reflected radiation from the phase conjugation means (20) enters the gain element (14). In a further aspect of the invention the laser apparatus (100) further comprises imaging means (132) disposed along the optical path between said phase conjugation means (120) and said gain element (114) so as to provide maximum transfer of phase information from the lasing medium of said gain element (114) to said phase conjugate reflector (120) and back.
摘要翻译：一种利用主振荡器功率放大器配置的激光装置（10），其中主振荡器（12）提供注入到至少一个激光介质增益元件（14）中的低能量，高相位前质量和高光谱纯度辐射源，沿光路设置。耦合装置（16）被定位成选择性地将预定百分比的主振荡器（12）辐射耦合到增益元件（14）介质中，同时防止离开增益元件（14）的任何放大的放射线的预定百分比除以重新进入主振荡器（12）。相位共轭装置（20）沿着作为耦合装置（16）的增益元件（14）的相反侧的光路布置，用于反射入射在其上的激光辐射的相位共轭。位于增益元件（14）和相位共轭装置（16）之间的延迟装置（26）确保沿着光路耦合的辐射脉冲朝向相位共轭装置（20）大体上从增益元件（14）退出，在来自相位共轭装置（20）的反射辐射进入增益元件（14）之前。在本发明的另一方面，激光装置（100）还包括沿着所述相位共轭装置（120）和所述增益元件（114）之间的光路布置的成像装置（132），以便提供相位信息从所述增益元件（114）的激光介质到达所述相位共轭反射器（120）并返回。

25. 发明申请

US20080304534A1 POWER SCALEABLE THIN DISK LASERS 有权
标题翻译：功率可调薄磁盘激光器
公开(公告)号：US20080304534A1
公开(公告)日：2008-12-11
申请号：US11760470
申请日：2007-06-08
申请人： David S. Sumida , Hans W. Bruesselbach
发明人： David S. Sumida , Hans W. Bruesselbach
IPC分类号： H01S3/06
CPC分类号： H01S3/0604 , H01S3/025 , H01S3/0407 , H01S3/0602 , H01S3/0612 , H01S3/0615 , H01S3/0621 , H01S3/0623 , H01S2301/02
摘要： A thin disk laser includes a thin disk of a host material incorporating a laser gain medium. The disk has opposite first and second surfaces, at least one of which is non-planar. The first surface is coated with a high reflectivity coating. The second surface has an anti-reflection coating thereon. The shape and mounting of the laser is such that mismatch of the coefficients of thermal expansion between the disk laser and the mount does not affect scaling of the laser to larger size disks for higher power lasers
摘要翻译：薄盘激光器包括结合有激光增益介质的主体材料的薄盘。盘具有相对的第一和第二表面，其中至少一个是非平面的。第一表面涂有高反射率涂层。第二表面上具有防反射涂层。激光器的形状和安装使得盘式激光器和安装座之间的热膨胀系数的不匹配不会影响激光器对较大功率激光器的较大尺寸的光盘的缩放

26. 发明授权

US07460755B2 Method and apparatus for combining laser light 失效
标题翻译：用于组合激光的方法和装置
公开(公告)号：US07460755B2
公开(公告)日：2008-12-02
申请号：US10759511
申请日：2004-01-15
申请人： Hans W. Bruesselbach , Monica Minden , Cris Jones , Dave Hammon
发明人： Hans W. Bruesselbach , Monica Minden , Cris Jones , Dave Hammon
IPC分类号： G02B6/06 , G02B6/04 , G02B6/26 , G02B6/42
CPC分类号： G02B6/2808 , G02B6/04 , G02B19/0028 , G02B19/0057 , G02B27/09
摘要： A fiber optic apparatus formed by fusing together multiple optical fibers and stretching the fused optical fibers to form a tapered portion. The tapered portion is cleaved or cut and polished to form a facet at which an optical beam is received or transmitted.
摘要翻译：通过将多根光纤融合在一起并拉伸融合的光纤以形成锥形部分而形成的光纤设备。锥形部分被切割或切割和抛光以形成光束被接收或传输的小平面。

27. 发明授权

US07217585B1 Method for fabricating and using a light waveguide 有权
标题翻译：制造和使用光波导的方法
公开(公告)号：US07217585B1
公开(公告)日：2007-05-15
申请号：US11395702
申请日：2006-03-31
申请人： David S. Sumida , Authi A. Narayanan , Hans W. Bruesselbach
发明人： David S. Sumida , Authi A. Narayanan , Hans W. Bruesselbach
IPC分类号： H01L21/20
CPC分类号： G02B6/1342
摘要： A waveguide is fabricated by first preparing two waveguide precursor pieces. Each waveguide precursor piece includes a single-crystal substrate, and an epitaxial coating layer of an oxide coating material on the substrate. The oxide substrate material preferably comprises yttrium as a substrate-material cation, and the oxide coating material preferably comprises a coating-material cation selected from the group consisting of ytterbium, thulium, erbium, and holmium. The two substrates are placed together with the coating layers in contact to form a precursor structure. The precursor structure is heated to an elevated diffusion temperature so that the coating layers bond together and the coating materials and the respective substrate materials interdiffuse to form the waveguide having an interdiffused region. A laser beam may be directed through the interdiffused region, while the interdiffused region is optionally optically pumped through one or both of the substrates.
摘要翻译：通过首先制备两个波导前体件来制造波导。每个波导前体件包括单晶衬底和在衬底上的氧化物涂层材料的外延涂层。氧化物基材优选包含作为基材材料阳离子的钇，氧化物涂层材料优选包含选自镱，ium，铒和钬的涂料阳离子。将两个基板与涂层接触放置在一起以形成前体结构。将前体结构加热到升高的扩散温度，使得涂层结合在一起，并且涂层材料和相应的衬底材料相互扩散以形成具有相互扩散区域的波导。激光束可以被引导穿过相互扩散的区域，而相互扩散的区域可选地被光泵浦通过一个或两个基底。

28. 发明授权

US5652756A Glass fiber laser system using U-doped crystal Q-switch 失效
标题翻译：玻璃光纤激光系统采用U型掺晶晶Q开关
公开(公告)号：US5652756A
公开(公告)日：1997-07-29
申请号：US589807
申请日：1996-01-22
申请人： Robert D. Stultz , Hans W. Bruesselbach , David S. Sumida , Milton Birnbaum , Marly B. Camargo
发明人： Robert D. Stultz , Hans W. Bruesselbach , David S. Sumida , Milton Birnbaum , Marly B. Camargo
IPC分类号： H01S3/067 , H01S3/0941 , H01S3/113 , H01S3/16 , H01S3/17 , H01S3/11
CPC分类号： H01S3/113 , H01S3/067 , H01S3/0941 , H01S3/09415 , H01S3/1608 , H01S3/1643 , H01S3/1698 , H01S3/175
摘要： A glass fiber laser system includes a laser resonator cavity having a resonant path and an erbium-doped glass fiber lasing element with an output of from about 1.5 to about 1.6 micrometers within the laser resonator cavity. A light source directed into an input end of the glass fiber lasing element optically pumps the lasing element to emit light. A passive Q-switch lies along the resonant path within the laser resonator cavity. The Q-switch is formed of a host material having a concentration of uranium ions therein, so as to be a saturable absorber of the light emitted by the lasing element. The Q-switch is preferably a uranium-doped fluoride crystal such as U:CaF.sub.2, U:SrF.sub.2, or U:BaF.sub.2.
摘要翻译：玻璃纤维激光系统包括具有谐振路径的激光谐振腔和在激光谐振腔内具有约1.5至约1.6微米输出的掺铒玻璃纤维激光元件。引导到玻璃纤维激光元件的输入端的光源将激光元件光泵浦发光。无源Q开关位于激光谐振腔内的谐振路径上。 Q开关由其中具有铀离子浓度的主体材料形成，以便是由激光元件发射的光的可饱和吸收体。 Q开关优选为铀掺杂氟化物晶体，例如U：CaF 2，U：SrF 2，或U：BaF 2。

29. 发明授权

US5636239A Solid state optically pumped laser head 失效
标题翻译：固态光泵浦激光头
公开(公告)号：US5636239A
公开(公告)日：1997-06-03
申请号：US441352
申请日：1995-05-15
申请人： Hans W. Bruesselbach , Robert W. Byren , Eric C. Fest , Steven C. Matthews , Stephen R. Klinger
发明人： Hans W. Bruesselbach , Robert W. Byren , Eric C. Fest , Steven C. Matthews , Stephen R. Klinger
IPC分类号： H01S3/04 , H01S3/042 , H01S3/06 , H01S3/091 , H01S3/093 , H01S3/0941 , H01S3/16 , H01S3/092
CPC分类号： H01S3/0941 , H01S3/042 , H01S3/0602 , H01S3/025 , H01S3/0407 , H01S3/061 , H01S3/0612 , H01S3/0617 , H01S3/0625 , H01S3/094084
摘要： A laser pump cavity assembly having a laser rod with a ground outer surface positioned concentrically within an annular jet sleeve which is, in turn, positioned concentrically within an annular outer sleeve. The outer sleeve is coated with a dielectric coating having slits therein arranged to receive focused optical pump radiation from respective laser diode arrays, the pump radiation being transmitted through the outer sleeve and jet sleeve to excite the laser rod. The jet sleeve is positioned to define cooling fluid chambers between the outer sleeve and the jet sleeve, and between the jet sleeve and the laser rod, and is provided with a series of jet holes for directing cooling fluid to impinge perpendicularly on the laser rod. The end faces of the jet sleeve and outer sleeve are further coated with dielectric material to enhance the efficiency of the device. The cooperating end caps which mount the outer sleeve, jet sleeve, and laser rod employ a number of advantageous self-aligning and sealing features.
摘要翻译：一种激光泵腔体组件，其具有激光棒，该激光棒具有同心地定位在环形喷射套筒内的接地外表面，该环形射流套筒又一个同心地定位在环形外套筒内。外套筒涂覆有其中布置有狭缝的电介质涂层，以从相应的激光二极管阵列接收聚焦光泵浦辐射，泵浦辐射通过外套管和射流套筒传递以激励激光棒。喷射套筒定位成在外套筒和射流套筒之间以及射流套筒和激光棒之间限定冷却流体室，并且设置有一系列喷射孔，用于引导冷却流体垂直地照射在激光棒上。喷射套管和外套筒的端面进一步涂覆介电材料，以提高装置的效率。安装外套筒，喷射套筒和激光棒的协作端盖采用许多有利的自对准和密封特征。

30. 发明授权

US4821272A Single mirror integral raman laser 失效
标题翻译：单镜组合拉曼激光
公开(公告)号：US4821272A
公开(公告)日：1989-04-11
申请号：US924108
申请日：1986-10-31
申请人： Hans W. Bruesselbach , Donald R. Dewhirst
发明人： Hans W. Bruesselbach , Donald R. Dewhirst
IPC分类号： H01S3/30
CPC分类号： H01S3/305
摘要： A Raman laser (10) is provided using a pump laser (22) as a source of radiation at a first wavelength and a Raman cell (30) for converting the first wavelength radiation to a second wavelength. The pump laser (20) provides polarized radiation at a predetermined first wavelength which is focused by a focusing means (40) into a Raman medium (32) which converts radiation at the first wavelength to a predetermined second wavelength by Raman scattering processes. A reflection means (50) which is aligned normal to the first wavelength radiation is disposed between the pump laser (20) and focusing means (40). The reflection means is substantially 100% reflective of radiation at the second wavelength and substantially non-reflective of radiation at the first wavelength. A polarizing means (70) and quarter-wave plate (60) are disposed along the optical path between the Raman medium (32) and the pump laser (20) for allowing propagation of the first wavelength to the Raman medium (32) but preventing SBS radiation from entering the pump laser (20) from the Raman medium.Alternatively, the pump laser includes an output reflection means (124) that is substantially 100% reflective of radiation at the second wavelength and partially reflective of radiation at the first wavelength. This embodiment achieves automatic alignment of the pump laser and the Raman medium (32) and does not use additional reflection means, polarization means, or a quarter-wave plate.
摘要翻译：使用泵浦激光器（22）作为第一波长的辐射源和用于将第一波长辐射转换为第二波长的拉曼单元（30）提供拉曼激光器（10）。泵浦激光器（20）以预定的第一波长提供偏振辐射，该预定的第一波长由聚焦装置（40）聚焦成通过拉曼散射方法将第一波长的辐射转换成预定的第二波长的拉曼介质（32）。与泵浦激光器（20）和聚焦装置（40）之间设置与第一波长辐射垂直对准的反射装置（50）。反射装置基本上100％反射第二波长处的辐射，并且基本上不反射第一波长处的辐射。沿着拉曼介质（32）和泵浦激光器（20）之间的光路设置偏振装置（70）和四分之一波片（60），用于允许第一波长传播到拉曼介质（32），但防止 SBS辐射从拉曼介质进入泵激光器（20）。或者，泵浦激光器包括输出反射装置（124），其基本上100％反射第二波长处的辐射并部分地反射第一波长的辐射。该实施例实现了泵浦激光器和拉曼介质（32）的自动对准，并且不使用附加的反射装置，偏振装置或四分之一波片。

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