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    LASER IGNITION SYSTEM
    1.
    发明申请
    LASER IGNITION SYSTEM 有权
    激光点火系统

    公开(公告)号：US20160268767A1

    公开(公告)日：2016-09-15

    申请号：US15030538

    申请日：2014-08-25

    申请人： ROBERT BOSCH GMBH

    发明人： Heiko Ridderbusch

    IPC分类号： H01S3/16 ,  F02P23/04 ,  H01S3/04 ,  H01S3/06 ,  H01S3/094 ,  H01S3/11

    CPC分类号： H01S3/1698 ,  F02P23/04 ,  H01S3/0407 ,  H01S3/0612 ,  H01S3/0627 ,  H01S3/08 ,  H01S3/094 ,  H01S3/094084 ,  H01S3/09415 ,  H01S3/11 ,  H01S3/113 ,  H01S3/1618 ,  H01S3/164 ,  H01S3/1643 ,  H01S3/1696 ,  H01S5/183

    摘要： A laser ignition system, in particular for an internal combustion engine, including a vertical emitter and a laser-active crystal, the laser-active crystal being doped in at least some areas using ytterbium, the ytterbium-doped area having a length of 200 μm to 7000 μm. The monolithic laser is based on a YAG or LuAG host crystal having 3 differently doped areas: a laser-active ytterbium-doped area, an undoped area which determines the resonator length and therefore the pulse duration, and a chromium-doped or vanadium-doped area for the passive Q-switch. The resonator is delimited by 2 mirrors.

    摘要翻译： 一种激光点火系统，特别是用于包括垂直发射器和激光 - 活性晶体的内燃机的激光点火系统，使用镱在至少一些区域掺杂激光活性晶体，掺杂镱的区域具有200μm的长度 至7000μm。 单片激光器基于具有3个不同掺杂区域的YAG或LuAG主机晶体：激光有源镱掺杂区域，确定谐振器长度并因此确定脉冲持续时间的未掺杂区域，以及掺杂铬或钒的掺杂 无源Q开关区域。 谐振器由2个镜子界定。

    Optically pumped laser minicavity, its production process and laser using said cavity
    2.
    发明授权
    Optically pumped laser minicavity, its production process and laser using said cavity 失效
    光学泵浦激光器小型化，其生产工艺和激光器使用所述腔体

    公开(公告)号：US5309471A

    公开(公告)日：1994-05-03

    申请号：US988461

    申请日：1992-12-10

    申请人： Bernard Chambaz ,  Isabelle Chartier ,  Bernard Ferrand ,  Denis Pelenc

    发明人： Bernard Chambaz ,  Isabelle Chartier ,  Bernard Ferrand ,  Denis Pelenc

    IPC分类号： H01S3/06 ,  H01S3/063 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/16 ,  H01S3/08

    CPC分类号： H01S3/16 ,  H01S3/063 ,  H01S3/0604 ,  H01S3/0627 ,  H01S3/0941 ,  H01S3/1611 ,  H01S3/1635 ,  H01S3/164 ,  H01S3/1643 ,  H01S3/1661 ,  H01S3/1666

    摘要： Optically pumped laser minicavity, its production process and laser using said cavity, wherein the minicavity comprises an electrically insulating, parallelepipedic, solid emitter (1b), having two polished parallel lateral faces (6, 8), a monocrystalline substrate (2) and several monocrystalline layers epitaxied on the substrate and having in directions parallel to said faces a hardness equal to that of the substrate, one of the layers constituting a guide layer (4) able to guide the light emitted by the emitter and the pumping light and another layer (12) constituting a non-guiding protective layer, the protective layer and the substrate constituting two opposite faces of the emitter perpendicular to the lateral faces, laser activating ions being contained within the substrate and/or in one of the layers. In the case of an internal cavity, semi-reflecting mirrors (9, 10) are placed on the lateral faces of the emitter.

    摘要翻译： 光学泵浦激光微小空间，其制造过程和使用所述空腔的激光器，其中微腔包括电绝缘的平行六面体的固体发射体（1b），具有两个抛光的平行的侧面（6,8），单晶衬底（2）和几个 单晶层在衬底上表面并且具有与所述面平行的方向的硬度等于衬底的硬度，其中的一个层构成能够引导由发射体发射的光和泵浦光的引导层（4），并且另一层 （12）构成非引导保护层，所述保护层和所述基板构成垂直于所述侧面的所述发射体的两个相对面，所述激光活化离子包含在所述基板内和/或所述层之中。 在内腔的情况下，半反射镜（9,10）被放置在发射器的侧面上。

    Method of transferring energy in an optical fiber laser structure using energy migration
    4.
    发明申请
    Method of transferring energy in an optical fiber laser structure using energy migration 失效
    使用能量迁移在光纤激光器结构中传输能量的方法

    公开(公告)号：US20040131091A1

    公开(公告)日：2004-07-08

    申请号：US10398150

    申请日：2003-07-31

    发明人： John D. Myers ,  Michael J Myers

    IPC分类号： H01S003/30

    CPC分类号： H01S3/06708 ,  H01S3/06729 ,  H01S3/06737 ,  H01S3/094003 ,  H01S3/094007 ,  H01S3/1608 ,  H01S3/1618 ,  H01S3/164 ,  H01S3/1698

    摘要： A method of transferring energy in an optical fiber structure is disclosed. This method transfers energy from a cladding element of the fiber structure to a core element of the fiber structure. The core element includes an active gain component and an energy migration component. The cladding element, which surrounds the core element, includes the energy migration component. The structure and method can be utilized to provide either an optical fiber laser or an optical fiber amplifier. The method includes the steps of providing a pump for producing the energy and optically coupling the pump with the cladding element. The cladding element, including the energy migration component, is then pumped with the energy produced by the pump such that the energy is absorbed and stored in the cladding element by the energy migration component. The method further includes the step of transferring the energy stored in the cladding element to the core element by migration of the energy within the energy migration component to the active gain component such that the active gain component in the core element lases or provides gain.

    摘要翻译： 公开了一种在光纤结构中传送能量的方法。 该方法将能量从纤维结构的包层元件传递到纤维结构的芯元件。 核心元件包括主动增益组件和能量迁移组件。 围绕核心元件的包层元件包括能量迁移组件。 该结构和方法可用于提供光纤激光器或光纤放大器。 该方法包括提供用于产生能量并将泵与包层元件光学耦合的泵的步骤。 包括能量迁移组分的包层元件然后用泵产生的能量泵送，使得能量被能量迁移组分吸收并存储在包层元件中。 该方法还包括通过将能量偏移分量内的能量迁移到有源增益分量来将存储在包层元件中的能量转移到核心元件的步骤，使得核心元件中的主动增益分量变化或提供增益。

    Eyesafe laser system using transition metal-doped group II-VI semiconductor as a passive saturable absorber Q-switch
    5.
    发明授权
    Eyesafe laser system using transition metal-doped group II-VI semiconductor as a passive saturable absorber Q-switch 失效
    使用过渡金属掺杂组II-VI半导体作为无源可饱和吸收剂Q开关的眼睛安全激光系统

    公开(公告)号：US5832008A

    公开(公告)日：1998-11-03

    申请号：US790350

    申请日：1997-01-24

    申请人： Milton Birnbaum ,  Robert D. Stultz ,  Marly B. Camargo

    发明人： Milton Birnbaum ,  Robert D. Stultz ,  Marly B. Camargo

    IPC分类号： H01S3/113 ,  H01S3/16

    CPC分类号： H01S3/113 ,  H01S3/1608 ,  H01S3/164

    摘要： An eyesafe laser system includes a Q-switch crystal formed of a semiconductor host material having noncentrosymmetric tetrahedral substitutional sites doped with transition metal ions in concentrations from about 0.001 to about 0.10 atomic percent, which functions as to be a saturable absorber of light at eyesafe wavelengths with a relatively long relaxation lifetime. Co.sup.2+ :ZnSe has been demonstrated to have advantageously high absorption cross section and advantageously high relaxation lifetime at both 1.54 .mu.m (Er:glass laser) and 1.6 .mu.m (Er:YAG laser). Other candidate host materials include other zinc chalcogenides, cadmium chalcogenides and zinc oxide. The resultant Q-switch does not require additional focusing optics inside the cavity and has a saturation fluence which is approximately one order of magnitude less than other state of the art saturable absorbers in the "eyesafe" wavelength region, thereby permitting substantially faster Q-switch bleaching, lower thermal loads, and less potential for damage than was hitherto possible.

    摘要翻译： 一种眼睛安全的激光系统包括由半导体主体材料形成的Q开关晶体，该半导体主体材料具有掺杂有约0.001至约0.10原子百分比浓度的过渡金属离子的非中心对称四面体取代位点，其功能是在眼睛安全波长处的可饱和吸收体 具有较长的松弛寿命。 已经证明Co2 +：ZnSe在1.54μm（Er：玻璃激光）和1.6μm（Er：YAG激光器）两者中具有有利的高吸收截面和有利的高弛豫寿命。 其他候选主体材料包括其他硫化锌，硫化镉和氧化锌。 所产生的Q开关不需要在腔内部附加的聚焦光学元件，并且具有比“眼睛”波长区域中的其它状态的可饱和吸收体大约一个数量级的饱和能量密度，从而允许基本上更快的Q开关 漂白，降低热负荷，并且损坏的可能性远低于迄今为止。

    Parasitic oscillation suppression in solid state lasers using absorbing thin films
    6.
    发明授权
    Parasitic oscillation suppression in solid state lasers using absorbing thin films 失效
    使用吸收薄膜的固体激光器中的寄生振荡抑制

    公开(公告)号：US5335237A

    公开(公告)日：1994-08-02

    申请号：US968111

    申请日：1992-10-29

    申请人： Luis E. Zapata

    发明人： Luis E. Zapata

    IPC分类号： H01S3/04 ,  H01S3/042 ,  H01S3/06 ,  H01S3/16 ,  H01S3/00

    CPC分类号： H01S3/0606 ,  H01S2301/02 ,  H01S3/0405 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/0625 ,  H01S3/08095 ,  H01S3/1611 ,  H01S3/164

    摘要： A thin absorbing film is bonded onto at least certain surfaces of a solid state laser gain medium. An absorbing metal-dielectric multilayer film is optimized for a broad range of incidence angles, and is resistant to the corrosive/erosive effects of a coolant such as water, used in the forced convection cooling of the film. Parasitic oscillations hamper the operation of solid state lasers by causing the decay of stored energy to amplified rays trapped within the gain medium by total and partial internal reflections off the gain medium facets. Zigzag lasers intended for high average power operation require the ASE absorber.

    摘要翻译： 薄的吸收膜粘结在固态激光增益介质的至少某些表面上。 吸收金属 - 电介质多层膜针对广泛的入射角度进行了优化，并且抵抗了用于强制对流冷却膜的冷却剂（例如水）的腐蚀/侵蚀作用。 寄生振荡阻碍了固态激光器的操作，通过使增益介质面上的全部和部分内部反射引起存储能量的衰减，从而使捕获在增益介质内的放大光线衰减。 用于高平均功率运行的Z形激光器需要ASE吸收器。

    Process for increasing laser crystal fluorescence yield by controlled atmosphere processing
    8.
    发明授权
    Process for increasing laser crystal fluorescence yield by controlled atmosphere processing 失效
    通过受控气氛处理提高激光晶体荧光产量的方法

    公开(公告)号：US4315832A

    公开(公告)日：1982-02-16

    申请号：US17864

    申请日：1979-03-05

    申请人： Ricardo C. Pastor ,  Donald P. Devor

    发明人： Ricardo C. Pastor ,  Donald P. Devor

    IPC分类号： C09K11/80 ,  C30B33/00 ,  H01S3/16 ,  C09K11/46 ,  C01F17/00

    CPC分类号： H01S3/16 ,  C30B29/16 ,  C30B29/24 ,  C30B29/28 ,  C30B33/00 ,  H01S3/1611 ,  H01S3/1638 ,  H01S3/164 ,  H01S3/1643 ,  H01S3/1673

    摘要： The specification discloses a process for modifying the environment of active atoms in a selected material by removing impurities from the environment. The material is heated at an elevated temperature in an atmosphere conducive to the formation of atomic oxygen so that the atomic oxygen can react with the atoms and molecules in the environment to remove the impurities in and thus alter selected properties of the material. In a preferred embodiment of the present invention, the lasing efficiency of a neodymium-doped yttrium aluminum garnet crystal is increased by heating the crystal at an elevated temperature in an atmosphere conducive to the formation of atomic oxygen so that the atomic oxygen can react with and remove impurities from the crystal to diminish the color center concentration therein and thus increase the fluorescence yield and lasing efficiency of the crystal.

    摘要翻译： 该说明书公开了通过从环境中除去杂质来改变选定材料中的活性原子的环境的方法。 该材料在有助于形成原子氧的气氛中在升高的温度下加热，使得原子氧可以与环境中的原子和分子反应以除去杂质并因此改变材料的选定性质。 在本发明的优选实施例中，通过在有助于形成原子氧的气氛中在升高的温度下加热晶体来增加钕掺杂的钇铝石榴石晶体的激光效率，使得原子氧可与 从晶体中除去杂质以减少其中的中心浓度，从而提高晶体的荧光产率和激光效率。

    Passively Q-switched microlaser
    10.
    发明授权
    Passively Q-switched microlaser 有权
    被动Q开关微激光器

    公开(公告)号：US08532151B2

    公开(公告)日：2013-09-10

    申请号：US13445853

    申请日：2012-04-12

    申请人： Dashan Li ,  Shaofeng Zhang ,  Chao Lv

    发明人： Dashan Li ,  Shaofeng Zhang ,  Chao Lv

    IPC分类号： H01S3/113

    CPC分类号： H01S3/0627 ,  H01S3/025 ,  H01S3/0621 ,  H01S3/09415 ,  H01S3/113 ,  H01S3/1608 ,  H01S3/164 ,  H01S3/175 ,  H01S2302/02

    摘要： A passively Q-switched laser comprises a pump laser diode, a micro laser resonant cavity including a lasing medium and a saturable absorber, a filter and a photodiode. The lasing medium and saturable absorber are bonded together, and dielectric film is coated on the surfaces of the bonded body to form the laser resonant cavity. The filter reflects a portion of the Q-switched laser pulse beam. The photodiode can detect and convert the laser pulse to electric signal for triggering purpose.

    摘要翻译： 无源Q开关激光器包括泵激光二极管，包括激光介质和可饱和吸收体的微激光谐振腔，滤光器和光电二极管。 激光介质和可饱和吸收体结合在一起，并且电介质膜涂覆在粘合体的表面上以形成激光谐振腔。 滤波器反映了Q开关激光脉冲光束的一部分。 光电二极管可以检测并将激光脉冲转换为电信号用于触发目的。