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1. 发明授权

US4031484A Portable chemical laser with gas recirculation 失效
标题翻译：便携式化学激光与气体再循环
公开(公告)号：US4031484A
公开(公告)日：1977-06-21
申请号：US630828
申请日：1975-11-11
申请人： Robert J. Freiberg , David W. Fradin , Peter P. Chenausky , Frank R. Biancardi
发明人： Robert J. Freiberg , David W. Fradin , Peter P. Chenausky , Frank R. Biancardi
IPC分类号： H01S3/095 , H01S3/00
CPC分类号： H01S3/095
摘要： A chemical laser having means for repeatedly circulating the gaseous working medium in a portable, self-contained system is disclosed. An excited laser species is formed by chemical means and after passing through the optical cavity, the working medium is purified by selective absorption and adsorption processes, increased in pressure, supplemented with makeup feed reactants and recycled. The operation of a system using deuterium and sulfur hexafluoride gases is discussed in detail although various combinations of other suitable reactants which provide a halogen and hydrogen or an isotope thereof are disclosed.
摘要翻译：公开了一种具有用于在便携式，独立的系统中重复循环气态工作介质的装置的化学激光器。通过化学方法形成激发激光的物质，通过光腔后，工作介质通过选择性吸附和吸附过程，压力增加，补充补充反应物和回收利用来净化。详细讨论了使用氘和六氟化硫气体的系统的操作，尽管公开了提供卤素和氢或其同位素的其它合适的反应物的各种组合。

2. 发明授权

US3950712A Unstable laser resonator having radial propagation 失效
标题翻译：具有径向传播的不稳定激光共振器
公开(公告)号：US3950712A
公开(公告)日：1976-04-13
申请号：US568083
申请日：1975-04-14
申请人： Peter P. Chenausky , Anthony J. DeMaria , David W. Fradin , Robert J. Freiberg
发明人： Peter P. Chenausky , Anthony J. DeMaria , David W. Fradin , Robert J. Freiberg
IPC分类号： H01S3/081 , H01S3/095
CPC分类号： H01S3/095 , H01S3/0818
摘要： A new resonator concept which is especially useful in chemical laser applications is disclosed. A ring end mirror, a conical folding mirror and a circular end mirror are combined to form an unstable resonator including a radial direction propagation having a gain medium region and a region of axial direction propagation. Alternate embodiments of the invention include the use of nonreflective fins in the region containing the working medium to suppress superfluorescence and an aerodynamic window to keep depleted working medium out of the path of the resonant beam.

3. 发明授权

US4188592A Closed cycle chemical laser 失效
标题翻译：封闭循环化学激光
公开(公告)号：US4188592A
公开(公告)日：1980-02-12
申请号：US894776
申请日：1978-04-10
申请人： Carl J. Buczek , Robert J. Freiberg , David W. Fradin , Peter P. Chenausky
发明人： Carl J. Buczek , Robert J. Freiberg , David W. Fradin , Peter P. Chenausky
IPC分类号： H01S3/095
CPC分类号： H01S3/095
摘要： A closed cycle chemical laser adapted for continuous wave operation is disclosed. A first gas such as sulphur hexafluoride is decomposed by an electrical discharge means to provide at least some fluorine atoms which when combined with molecular hydrogen in a mixing chamber located upstream of and proximate to an optical power extraction chamber forms an excited laser species capable of stimulated emission to produce a continuous wave output beam. After passing through the optical cavity the effluent is purified by selective absorption and adsorption processes to eliminate the laser species from the effluent and to separate the hydrogen for recirculation back to the mixing chamber. The remaining effluent has its pressure increased, is supplemented with makeup feed gases and is recycled. The operation of the system using sulphur hexafluoride and hydrogen gases is discussed in detail and various combinations of other suitable reactants are disclosed.
摘要翻译：公开了一种适用于连续波动操作的闭环化学激光器。诸如六氟化硫的第一气体通过放电装置分解以提供至少一些氟原子，其在位于光功率提取室的上游和附近的混合室中与分子氢组合时形成能够被激发的激发的激光发射产生连续波输出光束。通过光腔后，通过选择性吸收和吸附过程净化流出物，以消除来自流出物的激光物质，并将氢气再循环分离回混合室。剩余的污水有压力增加，补充补充气体并回收利用。详细讨论了使用六氟化硫和氢气的系统的操作，并公开了其它合适的反应物的各种组合。

4. 发明授权

US3969685A Enhanced radiation coupling from unstable laser resonators 失效
标题翻译：来自不稳定激光谐振器的增强辐射耦合
公开(公告)号：US3969685A
公开(公告)日：1976-07-13
申请号：US530456
申请日：1974-12-06
申请人： Peter P. Chenausky , Robert J. Freiberg
发明人： Peter P. Chenausky , Robert J. Freiberg
IPC分类号： H01S3/081 , H01S3/083
CPC分类号： H01S3/0818 , H01S3/083
摘要： Method and apparatus for providing a large fraction of the energy coupling from an unstable resonator in the central lobe of the far field pattern of the output beam from the resonator are disclosed. The resonator is designed to allow a low order mode pattern to resonate about the optical axis therethrough and radiation is coupled out from both the axial region and the outer region of the mode. The geometry of the systems is formed with transmissive and reflective optics in various configurations of linear and ring lasers.
摘要翻译：公开了用于从输出光束从谐振器的远场图案的中心波瓣中的不稳定谐振器提供大部分能量耦合的方法和装置。谐振器被设计成允许低阶模式图案围绕光轴谐振，并且辐射从模式的轴向区域和外部区域耦合出来。系统的几何形状由线性和环形激光器的各种配置中的透射和反射光学器件形成。

5. 发明授权

US5741245A Corneal sculpting using laser energy 失效
标题翻译：使用激光能量的角膜造型
公开(公告)号：US5741245A
公开(公告)日：1998-04-21
申请号：US384243
申请日：1995-02-06
申请人： Colette Cozean , Robert J. Freiberg , HeeJung Koh Wescoat
发明人： Colette Cozean , Robert J. Freiberg , HeeJung Koh Wescoat
IPC分类号： A61B18/20 , A61B17/00 , A61F9/007 , A61F9/01 , A61M1/00 , A61N5/06
CPC分类号： A61F9/008 , A61F9/00804 , A61B2017/00172 , A61B2017/00973 , A61B2018/204 , A61F2009/00844 , A61F2009/00872 , A61F2009/00882
摘要： A corneal sculpting system utilized for performing surgery to reshape the cornea of the eye. The system includes a laser delivery system that is coupled to a filter positioning system and a corneal topography system. The filter positioning system suspends a sculpting filter above the surface of the cornea. The sculpting filter controls the level of tissue removal that occurs in each area of the cornea by absorbing a certain percentage of the incident laser energy in various areas of the filter. The positioning system also has a conduit for delivering water to the corneal surface. A thin layer of water is heated by the application of the laser to cause microexplosions that dislodge and propel the tissue to ablate the cornea. The corneal topography system provides real time feedback on the curvature of the cornea, before during and after the surgery.
摘要翻译：用于进行手术以重塑眼睛角膜的角膜造型系统。该系统包括耦合到过滤器定位系统和角膜地形系统的激光传送系统。过滤器定位系统将雕刻过滤器悬挂在角膜表面上方。雕刻过滤器通过在过滤器的各个区域吸收一定百分比的入射激光能量来控制在角膜的每个区域中发生的组织去除水平。定位系统还具有用于将水输送到角膜表面的导管。通过施加激光来加热薄层的水，导致微小的爆炸物移动并推动组织以烧蚀角膜。角膜地形系统在手术之前和之后提供角膜曲率的实时反馈。

6. 发明授权

US4025172A Compound unstable resonator 失效
标题翻译：复合不稳定谐振器
公开(公告)号：US4025172A
公开(公告)日：1977-05-24
申请号：US620995
申请日：1975-10-09
申请人： Robert J. Freiberg
发明人： Robert J. Freiberg
IPC分类号： G02B5/00 , G02B27/09 , H01S3/08 , G02B5/10
CPC分类号： G02B27/0927 , G02B19/0023 , G02B19/0033 , G02B27/09 , G02B27/0972 , G02B27/0983 , G02B5/001 , H01S3/08081
摘要： A modification to the reflective surfaces in unstable resonator assemblies to improve the operating characteristics of such devices and enhance the quality in the far field of the output beam from such resonators is disclosed. Some modifications include the elimination of abrupt discontinuities in the reflective surfaces and the forming of an auxiliary unstable resonator along the centerline axis of the primary resonator and result in increased symmetry in the operating characteristics of the system in the gain region and improved intensity profile in the far field for the output beam. The concept is applicable to axial as well as radial flow resonators having either circular or cylindrical optics.
摘要翻译：公开了对不稳定谐振器组件中的反射表面的改进以改善这种器件的工作特性并且提高了来自这种谐振器的输出光束的远场中的质量。一些修改包括消除反射表面中的突然不连续性以及沿着主谐振器的中心线轴形成辅助不稳定谐振器，并且导致增益区域中的系统的操作特性的增加的对称性以及改进的强度分布输出光束的远场。该概念适用于具有圆形或圆柱形光学元件的轴向和径向流谐振器。

7. 发明授权

US3969687A Standing wave unstable resonators for radial flow lasers 失效
标题翻译：用于径流式激光器的驻波不稳定谐振器
公开(公告)号：US3969687A
公开(公告)日：1976-07-13
申请号：US568084
申请日：1975-04-14
申请人： Robert J. Freiberg , George H. McLafferty
发明人： Robert J. Freiberg , George H. McLafferty
IPC分类号： H01S3/083 , H01S3/081
CPC分类号： H01S3/083 , H01S3/0813 , H01S3/0818
摘要： A radial flow laser having an unstable resonator configuration with a standing wave optical path is disclosed. The gain medium forms a cylindrical sheath which is symmetric about a centerline axis through the resonator and the output beam is annular in cross section. The resonator geometry is based on a circular end mirror, an annular end mirror, an annular folding mirror having a reflective surface conforming to the inside of a cone geometry and conical folding mirror conforming to the outside of a cone geometry. Various embodiments are disclosed whereby the width of the resonant mode is either held constant or expanded to accommodate various power density loadings on the mirrors. In one configuration, the standing wave travels in a complete loop through the cylindrical sheath of gain medium.
摘要翻译：公开了具有驻波光路的不稳定谐振器构造的径向流激光器。增益介质形成圆柱形护套，其通过谐振器关于中心线轴对称，并且输出光束是横截面为环形的。谐振器几何形状基于圆形端镜，环形端镜，环形折叠镜，其具有符合锥形几何形状的内部的反射表面和符合锥形几何形状外侧的锥形折叠镜。公开了各种实施例，其中谐振模式的宽度被保持不变或扩大以适应反射镜上的各种功率密度负载。在一种配置中，驻波以完整的环路行进通过增益介质的圆柱形护套。

8. 发明授权

US06122300A High repetition rate mid-infrared laser 失效
标题翻译：高重复率中红外激光
公开(公告)号：US06122300A
公开(公告)日：2000-09-19
申请号：US931600
申请日：1997-09-17
申请人： Robert J. Freiberg , Colette Cozean
发明人： Robert J. Freiberg , Colette Cozean
IPC分类号： A61B18/20 , H01S3/04 , H01S3/042 , H01S3/05 , H01S3/08 , H01S3/091 , H01S3/092 , H01S3/102 , H01S3/16 , H01S3/10
CPC分类号： H01S3/092 , H01S3/042 , H01S3/1022 , A61B18/20 , H01S3/0407 , H01S3/08072 , H01S3/0931 , H01S3/1608
摘要： An optically pumped mid-infrared solid-state laser with high pulse repetition rate is described for use in laser surgery. The laser produces a wavelength between 1.7 and 4.0 microns, and is optically pumped. The rise and fall times of the pump pulses are sufficiently short to avoid thermal lensing induced instability. The laser provides an increased rate of tissue cutting without necessitating an increase in the pulse energy.
摘要翻译：描述了用于激光手术的具有高脉冲重复率的光泵浦中红外固态激光器。激光产生1.7至4.0微米之间的波长，并被光泵浦。泵浦脉冲的上升和下降时间足够短以避免热透镜引起的不稳定性。激光器提供了增加的组织切割速率，而不需要增加脉冲能量。

9. 发明授权

US5349590A Medical laser apparatus for delivering high power infrared light 失效
标题翻译：用于提供高功率红外光的医用激光装置
公开(公告)号：US5349590A
公开(公告)日：1994-09-20
申请号：US75720
申请日：1993-06-11
申请人： Varouj D. Amirkhanian , Colette Cozean , Robert J. Freiberg
发明人： Varouj D. Amirkhanian , Colette Cozean , Robert J. Freiberg
IPC分类号： A61B18/22 , B23K26/06 , G02B6/38 , G02B6/42 , H01S3/30
CPC分类号： B23K26/0604 , A61B18/22 , G02B6/3813 , G02B6/4296
摘要： A medical laser apparatus which comprises a medical laser and a waveguide is used to deliver infrared energy to a treatment site. The medical laser preferably delivers electromagnetic radiation at a wavelength of about 3.0 microns such as an Er:YAG laser (wavelength of 2.94 microns). The waveguide comprises a fluoride-based guiding structure surrounding an outer protective structure, and is capable of transmitting invisible infrared light at a wavelength of about 3 microns at a power density of at least about 4 kilowatts per square centimeter. The guiding structure has a core and at least one cladding. The protective structure comprises a jacket of material, preferably polyimide, which is substantially impermeable to moisture and has a moisture resistance significantly higher than that of the guiding structure. The protective structure surrounds the guiding structure and juxtaposed therewith such that the protective structure receives a portion of the infrared light which is in the form of leaky modes and has a sufficiently high transmittance to the infrared light, such that the energy of the light in the leaky modes is dissipated from the protective structure without damaging the waveguide. The protective structure is flexible and has a relatively high resistance to bending compared to the guiding structure in order to protect the guiding structure against breakage. In one embodiment, the waveguide is used to transmit laser energy of multiple wavelengths of optical energy to a treatment site.
摘要翻译：使用包括医疗激光和波导的医疗激光装置将红外能量传递到治疗部位。医用激光器优选地传送波长为约3.0微米的电磁辐射，例如Er：YAG激光器（2.94微米的波长）。波导包括围绕外部保护结构的基于氟化物的引导结构，并且能够以至少约4千瓦每平方厘米的功率密度传输波长约3微米的不可见红外光。引导结构具有芯和至少一个包层。保护结构包括材料护套，优选聚酰亚胺，其基本上不透水，并且具有显着高于引导结构的防潮性。保护结构围绕引导结构并且与之并置，使得保护结构接收一部分以泄漏模式形式的红外光，并且对红外光具有足够高的透射率，使得光在泄漏模式从保护结构消散而不损坏波导。保护结构是柔性的并且与引导结构相比具有相对较高的抗弯曲性能，以保护引导结构免受破坏。在一个实施例中，波导用于将多个波长的光能的激光能量传输到治疗部位。

10. 发明授权

US3969688A Traveling wave unstable resonators for radial flow lasers 失效
标题翻译：用于径流式激光器的行波不稳定谐振器
公开(公告)号：US3969688A
公开(公告)日：1976-07-13
申请号：US568082
申请日：1975-04-14
申请人： Robert J. Freiberg , George H. McLafferty
发明人： Robert J. Freiberg , George H. McLafferty
IPC分类号： H01S3/083 , H01S3/081
CPC分类号： H01S3/083
摘要： A radial flow ring laser having an unstable resonator configuration with a traveling wave optical path is disclosed. The gain medium forms a cylindrical sheath which is symmetric about a centerline axis through the resonator and the output beam is circular in cross section. The resonator geometry is based on first and second conical mirrors which are positioned symmetrically on the axis centerline and first and second annular mirrors which are symmetric about the axis and complete the ring path. The resonator description also includes an annular stripper mirror to produce the output beam of radiation and a suppression mirror to prevent a traveling wave in the undesired direction through the ring. An alternate embodiment includes a cylindrical folding mirror to cause the optical path to cross the centerline axis after each pass through the gain medium.
摘要翻译：公开了一种具有行波光路的不稳定谐振器结构的径向流动环形激光器。增益介质形成圆柱形护套，其通过谐振器关于中心线轴对称，并且输出光束是横截面为圆形。谐振器几何形状基于第一和第二锥形反射镜，其对称地位于轴线中心线上，第一和第二环形反射镜围绕轴线对称并且完成环形路径。谐振器描述还包括产生输出射线束的环形剥离镜和抑制反射镜，以防止在不期望的方向穿过环的行波。替代实施例包括圆柱形折叠镜，以在每次通过增益介质之后使光路穿过中心线轴线。

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