公开(公告)号：US07149231B2

公开(公告)日：2006-12-12

申请号：US10678694

申请日：2003-10-03

Applicant: Robert S. Afzal ,  Andrei Smuk

Inventor： Robert S. Afzal ,  Andrei Smuk

IPC: H01S3/11 ,  H01S3/113

CPC classification number: H01S3/0941 ,  H01S3/0602 ,  H01S3/0606 ,  H01S3/0612 ,  H01S3/0615 ,  H01S3/0627 ,  H01S3/08059 ,  H01S3/08072 ,  H01S3/113

Abstract: A monolithic, side pumped, passively Q-switched, solid-state laser (10) includes a laser resonator structure (16) that includes a laser gain medium (12) having an output face bonded to a passive Q-switch (14). The gain medium (12) has a side face (12A) for receiving pump light. The pump light is preferably generated by a laser diode array (20). In a further embodiment, a non-linear optical material (22), such as frequency doubling KTP, is optically coupled to an output face of the Q-switch for providing output wavelength conversion. A method is also disclosed for fabricating the monolithic, side pumped, passively Q-switched, solid-state laser. Techniques are included for providing compensation from thermal aberrations during operation of the laser.

Abstract translation: 单片侧泵浦被动Q开关固态激光器（10）包括激光谐振器结构（16），其包括激光增益介质（12），该激光增益介质具有接合到无源Q开关（14）的输出面。 增益介质（12）具有用于接收泵浦光的侧面（12A）。 泵浦光优选地由激光二极管阵列（20）产生。 在另一实施例中，诸如倍频KTP的非线性光学材料（22）光耦合到Q开关的输出面以提供输出波长转换。 还公开了一种用于制造单片侧泵浦被动Q开关固体激光器的方法。 包括用于在激光器操作期间从热像差提供补偿的技术。

公开(公告)号：US07085454B2

公开(公告)日：2006-08-01

申请号：US10985822

申请日：2004-11-10

Applicant: Mark D. Feuer ,  Nicholas J. Frigo

Inventor： Mark D. Feuer ,  Nicholas J. Frigo

IPC: G02B6/26

CPC classification number: G02F1/3132 ,  G02B6/12 ,  G02B6/12002 ,  G02B6/12004 ,  G02B6/1221 ,  G02B6/125 ,  G02B6/1342 ,  G02B2006/121 ,  G02B2006/12147 ,  G02B2006/1218 ,  G02F1/3523 ,  G02F2203/055 ,  H01S3/0612 ,  H01S3/063 ,  H01S3/0632 ,  H01S3/0637 ,  H01S3/2308

Abstract: A method for fabricating optical devices comprises the steps of preparing a first substrate wafer with at least one buried optical waveguide on an approximately flat planar surface of the substrate and a second substrate wafer with at least a second buried optical waveguide. The waveguides so formed may be straight or be curved along the surface of the wafer or curved by burying the waveguide at varying depth along its length. The second wafer is turned (flipped) and bonded to the first wafer in such a manner that the waveguides, for example, may form an optical coupler or may crossover one another and be in proximate relationship along a region of each. As a result, three dimensional optical devices are formed avoiding conventional techniques of layering on a single substrate wafer. Optical crossover angles may be reduced, for example, to thirty degrees from ninety degrees saving substrate real estate.

Abstract translation: 一种制造光学器件的方法包括以下步骤：在衬底的近似平坦的平坦表面上制备具有至少一个掩埋光波导的第一衬底晶片，以及具有至少第二掩埋光波导的第二衬底晶片。 如此形成的波导可以是直的或沿着晶片的表面弯曲，或者通过沿其长度以不同的深度掩埋波导来弯曲。 第二晶片以这样的方式转动（翻转）并结合到第一晶片，使得波导例如可以形成光耦合器，或者可以彼此交叉并且沿着每个的区域彼此相邻。 结果，形成了三维光学器件，避免了在单个衬底晶片上分层的常规技术。 光学交叉角度可以降低，例如，从九十度节省衬底空间可以降低三十度。

公开(公告)号：US20060039425A1

公开(公告)日：2006-02-23

申请号：US10915229

申请日：2004-08-10

Applicant: Alexander Betin ,  Kalin Spariosu

Inventor： Alexander Betin ,  Kalin Spariosu

IPC: H01S3/14

CPC classification number: H01S3/0602 ,  H01S3/02 ,  H01S3/0612 ,  H01S3/1603 ,  H01S3/169 ,  H01S3/20

Abstract: A solid-state suspension laser. The novel laser includes a gain medium comprised of a plurality of solid-state gain particles suspended in a fluid. The laser also includes a pump source for pumping the gain particles and a resonator for amplifying and outputting laser light generated by the gain medium. In an illustrative embodiment, the gain medium is adapted to flow, and the pumping of the gain medium occurs outside of the resonator. The flow velocities and the densities of the gain particles in the gain medium can be optimized for optimal absorption efficiency during the pumping and/or for optimal extraction efficiency in the resonator as well as for overall laser performance optimization, including power, efficiency and beam quality scalability.

Abstract translation: 固态悬浮激光器。 新型激光器包括由悬浮在流体中的多个固态增益粒子组成的增益介质。 激光器还包括用于泵浦增益粒子的泵浦源和用于放大和输出由增益介质产生的激光的谐振器。 在说明性实施例中，增益介质适于流动，并且增益介质的泵浦发生在谐振器外部。 可以优化增益介质中增益粒子的流速和密度，以实现在泵浦期间的最佳吸收效率和/或谐振器中的最佳提取效率以及整体激光性能优化，包括功率，效率和光束质量 可扩展性。

公开(公告)号：US06967766B2

公开(公告)日：2005-11-22

申请号：US10425578

申请日：2003-04-29

Applicant: Robin A. Reeder ,  Steven C. Matthews ,  Alexander A. Betin

Inventor： Robin A. Reeder ,  Steven C. Matthews ,  Alexander A. Betin

IPC: H01S3/06 ,  H01S3/23 ,  H01S3/00 ,  H01S3/16

CPC classification number: H01S3/2308 ,  H01S3/0606 ,  H01S3/0612 ,  H01S3/08095

Abstract: A solid-state laser beam amplifier with integrated reflective surface. A rectangular slab gain medium receives a first portion of an input laser beam along a first zigzag reflection path within the slab. The gain medium also receives a second portion of the input laser beam that has been reflected from an integral reflective surface such that the two portions traverse the gain medium along complementary zigzag paths. The zigzag paths are defined by total internal reflection of the beam portions as they propagate through the gain medium slab. A similar reflective surface may be positioned relative to the exit end of the gain medium slab, which redirects all of the output beam portions in a parallel direction. The gain medium may be Ytterbium or neodymium doped yttrium aluminum garnet. The gain medium may be formed as a high aspect ratio rectangular slab and may be clad with sapphire. The reflective surfaces may function by total internal reflection or may employ a reflective material, such as a dielectric coating. A section of undoped medium may be applied to the entrance or exit end of the gain medium slab to control angles of incidence and refraction.

Abstract translation: 具有集成反射面的固态激光束放大器。 矩形板增益介质沿着板坯内的第一曲折反射路径接收输入激光束的第一部分。 增益介质还接收已经从整体反射表面反射的输入激光束的第二部分，使得两个部分沿着互补的之字形路径穿过增益介质。 锯齿形路径由梁部分传播通过增益介质板时的全内反射定义。 可以相对于增益介质板的出口端定位相似的反射表面，其将平行方向上的所有输出光束部分重定向。 增益介质可以是镱或钕掺杂的钇铝石榴石。 增益介质可以形成为高纵横比矩形板，并且可以用蓝宝石覆盖。 反射表面可以通过全内反射而起作用或者可以采用反射材料，例如电介质涂层。 可以将一部分未掺杂的介质施加到增益介质板的入口或出口端，以控制入射角和折射角。

公开(公告)号：US06937629B2

公开(公告)日：2005-08-30

申请号：US10302630

申请日：2002-11-21

Applicant: Michael D. Perry ,  Paul S. Banks ,  Jason Zweiback ,  Robert W. Schleicher, Jr.

Inventor： Michael D. Perry ,  Paul S. Banks ,  Jason Zweiback ,  Robert W. Schleicher, Jr.

IPC: H01S3/04 ,  H01S3/042 ,  H01S3/06 ,  H01S3/07 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/16 ,  H01S3/20

CPC classification number: H01S3/025 ,  H01S3/0401 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/0602 ,  H01S3/0604 ,  H01S3/0612 ,  H01S3/07 ,  H01S3/0941 ,  H01S3/16 ,  H01S3/1603 ,  H01S3/1643 ,  H01S3/20 ,  H01S3/2341

Abstract: A laser device which may be used as an oscillator or amplifier comprising a chamber having a volume formed therein and a gain medium within the volume. The gain medium comprises solid-state elements containing active laser ion distributed within the volume. A cooling fluid flows about the solid-state elements and a semiconductor laser diode provides optical pump radiation into the volume of the laser chamber such that laser emission from the device passes through the gain medium and the fluid. The laser device provides the advantages of a solid-state gain medium laser (e.g., diode-pumping, high power density, etc), but enables operation at higher average power and beam quality than would be achievable from a pure solid-state medium.

公开(公告)号：US20050163184A1

公开(公告)日：2005-07-28

申请号：US10968280

申请日：2004-10-18

Applicant: Donald Hilliard

Inventor： Donald Hilliard

IPC: H01S3/06 ,  H01S3/07 ,  H01S3/08

CPC classification number: H01S3/0602 ,  H01S3/025 ,  H01S3/0385 ,  H01S3/042 ,  H01S3/0604 ,  H01S3/0612 ,  H01S3/07 ,  H01S3/08004 ,  H01S3/08022 ,  H01S3/08045 ,  H01S3/08059 ,  H01S3/0813 ,  H01S3/0941 ,  H01S3/225

Abstract: A novel laser cavity structure is disclosed which pertains to laser resonator geometries possessing circular symmetry, such as in the case of disk or spherical lasers. The disclosed invention utilizes a very-high finesse Bragg reflector (VHF-BR) thin film reflectors of many layer pairs of very small refractive index difference, the VHF-BR deposited on a surface of revolution, thereby forming an optical cavity. These dielectric reflectors are disposed in such a way as to allow selection of preferred low order modes and suppression of parasitic modes while allowing a high cavity Q factor for preferred modes. The invention disclosed, in its preferred embodiments, is seen as particularly useful in applications requiring high efficiency in the production and coupling of coherent radiation. This is accomplished in a cavity design that is relatively compact and economical. Of particular novelty is the combination of the disclosed cavity design with polymer multilayers. The ability to deposit an unusually large number of polymer thin films without loss of specularity, while maintaining very low extinction, renders the disclosed polymer-based cavity particularly well-suited for higher mode discrimination, more rugged and light-weight cavities, as well as economical fabrication.

Abstract translation: 公开了一种新颖的激光腔结构，其涉及具有圆形对称性的激光谐振器几何形状，例如在盘或球形激光器的情况下。 所公开的发明利用非常高的精细布拉格反射器（VHF-BR）薄膜反射器，其具有非常小折射率差异的许多层对，VHF-BR沉积在旋转表面上，从而形成光腔。 这些电介质反射器被设置成允许选择优选的低阶模式和抑制寄生模式，同时允许用于优选模式的高腔Q因子。 在其优选实施方案中公开的本发明被认为特别适用于在相干辐射的生产和耦合中需要高效率的应用中。 这是在相对紧凑和经济的腔设计中实现的。 特别新颖的是所公开的空腔设计与聚合物多层的组合。 在不损失镜面反射性的同时沉积异常大量聚合物薄膜的能力，同时保持非常低的消光，使得所公开的基于聚合物的腔特别适合于更高模式识别，更坚固和轻质的腔，以及 经济的制作。

公开(公告)号：US20050078719A1

公开(公告)日：2005-04-14

申请号：US10496296

申请日：2003-09-25

Applicant: Hisashi Masuda

Inventor： Hisashi Masuda

IPC: H01S3/00 ,  H01S3/06 ,  H01S3/08 ,  H01S3/086 ,  H01S3/10 ,  H01S3/113 ,  H01S3/13 ,  H01S3/16

CPC classification number: H01S3/0627 ,  H01S3/0405 ,  H01S3/0604 ,  H01S3/0612 ,  H01S3/08 ,  H01S3/08072 ,  H01S3/101 ,  H01S3/1026 ,  H01S3/113

Abstract: In a laser light generating device, the stability against vibration and time-dependent changes will be improved, and influences of temperature changes exerted on the resonator will be reduced. In a laser light generating device (1) which includes an excitation light source (2) for generating a continuous-wave excitation light and a solid-state laser resonator (4) based on using thermal lens effect caused by heat generation at a position of excitation, the solid-state laser resonator further includes a laser medium (4a), a saturable absorber (4b), an intermediate medium (4c) and reflection means (4d) as the constituents. Influence of vibration is reduced by bonding a substrate of the laser medium (4a) and a substrate of the saturable absorber (4b) so as to integrate them. By adopting a configuration which does not need any method of selecting operating point based on temperature changes and is less susceptible to heat, and by relatively moving the excitation optical system and the resonator in the positional relation of the both to thereby adjust the light path length of the resonator, so as to make it possible to select a stable operating point.

Abstract translation: 在激光发生装置中，能够提高对振动的稳定性和时间依赖性的变化，并且降低对谐振器的温度变化的影响。 在包括用于产生连续波激发光的激发光源（2）和固态激光谐振器（4）的激光发生装置（1）中，基于使用由 固体激光谐振器还包括激光介质（4a），可饱和吸收体（4b），中间介质（4c）和反射装置（4d）作为组成。 通过将激光介质（4a）的基板和可饱和吸收体（4b）的基板接合以使它们结合来减小振动的影响。 通过采用不需要任何基于温度变化选择工作点的方法并且不易受热的构造，并且通过以两者的位置关系相对移动激发光学系统和谐振器，从而调整光路长度 的谐振器，以便能够选择稳定的工作点。

公开(公告)号：US20050013333A1

公开(公告)日：2005-01-20

申请号：US10892878

申请日：2004-07-16

Applicant: Jae Kwon

Inventor： Jae Kwon

IPC: H01S3/16 ,  H01S3/04 ,  H01S3/042 ,  H01S3/091 ,  H01S3/0941 ,  H01S3/109

CPC classification number: H01S3/09415 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/0612 ,  H01S3/0617 ,  H01S3/109 ,  H01S3/1611 ,  H01S3/1643

Abstract: A solid state laser cooling device is disclosed. The device includes a pumping source generating light, a laser medium generating a resonant light from the pumped light, a heat exchanger treating heat generated from the laser medium, a metal mount supporting the heat exchanger and transferring heat to the heat exchanger, a heat transfer material transferring heat to the metal mount, and an interface material formed between the laser medium and the heat transfer material, so as to enhance a heat transfer efficiency. In another aspect of the present invention, the solid state laser cooling device includes a pumping source generating light, a laser medium including an added material for enhancing cooling efficiency and optical output, and a pair of metal mounts separated from each other and adhered to the laser medium.

Abstract translation: 公开了一种固态激光冷却装置。 该装置包括产生光的泵浦源，产生来自泵浦光的共振光的激光介质，处理从激光介质产生的热的热交换器，支撑热交换器并将热传递到热交换器的金属座，传热 向金属安装件传递热量的材料，以及形成在激光介质和传热材料之间的界面材料，以提高传热效率。 在本发明的另一方面，固态激光冷却装置包括产生光的泵浦源，包括用于提高冷却效率的附加材料的激光介质和光输出，以及一对彼此分离并粘附到所述金属支架上的金属支架 激光介质。

公开(公告)号：US20040240500A1

公开(公告)日：2004-12-02

申请号：US10484118

申请日：2004-06-29

Inventor： Ian Petar Mercer

IPC: H01S003/14 ,  H01S003/06

CPC classification number: H01S3/06 ,  H01S3/0612 ,  H01S3/0617 ,  H01S3/094038 ,  H01S3/09415 ,  H01S2301/02

Abstract: In a solid state, optically end-pumped laser, the laser gain medium has a tapered diameter to minimize the maximum path length of barrelling amplified stimulated emission (ASE), and a roughened surface region at one end to scatter barrelling ASE out of the gain medium; thereby minimizing the negative effective of barrelling ASE's, and inhibiting the trapping of rays with a large longitudinal component, but disallowing a cyclic, i.e. repeated, pass path with specular reflections.

Abstract translation: 在固态中，光学端部泵浦激光器，激光增益介质具有锥形直径以最小化装载放大的受激发射（ASE）的最大路径长度，以及在一端的粗糙化表面区域，以将增强的ASE分散出增益 中; 从而最大程度地减少了桶装的负面效果，并且抑制了具有大的纵向分量的光线的捕获，但是不允许具有镜面反射的循环的，即重复的通过路径。

公开(公告)号：US06822994B2

公开(公告)日：2004-11-23

申请号：US09876324

申请日：2001-06-07

Applicant: Chandler J. Kennedy

Inventor： Chandler J. Kennedy

IPC: H01S307

CPC classification number: H01S3/0606 ,  H01S3/0405 ,  H01S3/0602 ,  H01S3/0612 ,  H01S3/08095 ,  H01S3/094057 ,  H01S3/0941 ,  H01S3/1618 ,  H01S3/1643

Abstract: A laser device employs a laser slab having an ionic layer and a nonionic layer, joined through an optical-quality interface. The laser slab has a trapezoidal cross-section in a direction perpendicular to the optical-quality interface. Thermal conductivity away from the ionic layer is enhanced through the thinness of the ionic layer and through the use of a heatsink attached to the ionic layer. Optical power input through the nonionic layer and into the ionic layer is further increased through the use of the trapezoidal cross section.

Abstract translation: 激光装置采用通过光学质量界面连接的具有离子层和非离子层的激光板。 激光板在与光学质量界面垂直的方向上具有梯形截面。 通过离子层的薄度和通过使用连接到离子层的散热片来提高远离离子层的导热性。 通过使用梯形横截面进一步增加通过非离子层进入离子层的光功率。