公开(公告)号：US5572541A

公开(公告)日：1996-11-05

申请号：US322271

申请日：1994-10-13

Applicant: Paul J. M. Suni

Inventor： Paul J. M. Suni

IPC: H01S3/0941 ,  H01S3/091

CPC classification number: H01S3/0941 ,  H01S2301/02 ,  H01S3/025 ,  H01S3/061 ,  H01S3/0612 ,  H01S3/0625 ,  H01S3/094057 ,  H01S3/094084

Abstract: A composite, glass or crystalline laser rod having a doped, light-absorbing core portion surrounded by a transparent cladding portion that is either undoped or doped with a nonabsorbing material is side-pumped with a plurality of laser diodes dispersed angularly around the laser rod. A reflective coating or sleeve substantially surrounds the laser rod, except for entrance slits for the pump light, to confine unabsorbed pump light in the crystalline laser rod by reflecting and re-reflecting the pump light in the rod to increase the likelihood of absorption by the core portion. The reflective coating is substantially reflective of all the pump light, but it can be transparent to laser radiation emission by the rod. An absorptive coating that absorbs radiation of the wavelength of the laser radiation emission of the rod can be positioned around the outside of the reflective coating to absorb lateral laser emission of the rod. A clamp assembly with a rod holding axial bore and radially extending slots t,hat provide clamping flexibility and channel pump light transversely into the laser rod.

Abstract translation: 具有被未掺杂或掺杂有非吸收材料的透明包层部分包围的掺杂的光吸收芯部的复合玻璃或结晶激光棒被侧向泵浦，其中激光二极管分散在激光棒周围。 除了用于泵浦光的入口狭缝之外，反射涂层或套筒基本上围绕激光棒，通过反射并重新反射杆中的泵浦光来将未吸收的泵浦光限制在结晶激光棒中，以增加吸收的可能性 核心部分。 反射涂层基本上反射所有的泵浦光，但是对于通过杆的激光辐射发射可以是透明的。 吸收杆的激光辐射发射波长的辐射的吸收性涂层可以围绕反射涂层的外侧定位，以吸收杆的横向激光发射。 具有保持轴向孔和径向延伸的狭槽的杆的夹具组件向帽横向提供夹紧柔性和通道泵浦光。

公开(公告)号：US5305345A

公开(公告)日：1994-04-19

申请号：US950559

申请日：1992-09-25

Applicant: Georg F. Albrecht ,  Brian Comaskey ,  Steven B. Sutton

Inventor： Georg F. Albrecht ,  Brian Comaskey ,  Steven B. Sutton

IPC: H01S3/06 ,  H01S3/08 ,  H01S3/0941 ,  H01S3/09

CPC classification number: H01S3/0606 ,  H01S3/0623 ,  H01S3/0625 ,  H01S3/08072 ,  H01S3/08095 ,  H01S3/0941

Abstract: The architecture of the present invention has been driven by the need to solve the beam quality problems inherent in Brewster's angle tipped slab lasers. The entrance and exit faces of a solid state slab laser are cut perpendicular with respect to the pump face, thus intrinsically eliminating distortion caused by the unpumped Brewster's angled faces. For a given zigzag angle, the residual distortions inherent in the remaining unpumped or lightly pumped ends may be reduced further by tailoring the pump intensity at these ends.

Abstract translation: 本发明的结构是由于需要解决布鲁斯特斜角平板激光器固有的光束质量问题。 固态平板激光的入射面和出射面相对于泵面垂直切割，从而固有地消除了由布鲁斯特（Brewster）的倾斜面引起的变形。 对于给定的之字形角度，可以通过在这些端部调节泵浦强度来进一步减小剩余的未抽吸或轻微泵送端部固有的残余变形。

公开(公告)号：US5117436A

公开(公告)日：1992-05-26

申请号：US502001

申请日：1990-03-29

Applicant: Frank Hanson

Inventor： Frank Hanson

IPC: G02B6/42 ,  H01S3/06 ,  H01S3/0941

CPC classification number: H01S3/0941 ,  G02B6/4206 ,  G02B6/425 ,  H01S3/061 ,  H01S3/0625 ,  H01S3/094084

Abstract: A solid state laser rod of an anisotropic material is more efficiently side pumped by using cylindrical lenses and a half-wave plate with linear laser diode arrays disposed along the length of the solid state laser rod such that the polarization of the diode array light is rotated to achieve a maximum absorption coefficient in the laser rod material. In addition, Fresnel reflection losses at the lens and laser rod surfaces are reduced by a 90.degree. polarization rotation.

Abstract translation: 通过使用柱面透镜和具有沿着固态激光棒的长度设置的线性激光二极管阵列的半波片来更有效地侧向泵浦各向异性材料的固态激光棒，使得二极管阵列光的偏振旋转 以达到激光棒材料的最大吸收系数。 此外，透镜和激光棒表面的菲涅耳反射损失减小了90°的偏振旋转。

公开(公告)号：US4908832A

公开(公告)日：1990-03-13

申请号：US314655

申请日：1989-02-23

Applicant: Thomas M. Baer

Inventor： Thomas M. Baer

IPC: H01S3/094 ,  H01S3/08 ,  H01S3/0941 ,  H01S3/109 ,  H01S5/022

CPC classification number: H01S5/02252 ,  H01S3/0941 ,  H01S3/109 ,  H01S3/0621 ,  H01S3/0623 ,  H01S3/0625 ,  H01S3/08095 ,  H01S3/094053 ,  H01S3/09408 ,  H01S5/005 ,  H01S5/4031

Abstract: A high efficiency pumping scheme mode matches the TEMOO laser mode volume with a plurality of spaced apart laser diode pumping sources positioned along a lateral side of a block of laser material. The cavity resonator within the block is configured in a tightly folded zig-zag configuration. Pump radiation from the diode pumping sources is collimated by an optical fiber and is optically coupled to the verticies of the zig-zags. The fold angle less than 20.degree. and preferably less than 10.degree. and is selected to mode match the pump radiation to the mode volume. Parasitic oscillation across the laser block are prevented.In an alternate embodiment the pumping sources are separated from the block of laser material and are optically coupled to the block by the use of a lens. In a second alternate embodiment, the pumping sources are separated from the block of laser material and are optically coupled to the block by means of a plurality of optical fibers.

Abstract translation: 高效泵浦方案模式将TEM00激光模式体积与沿着激光材料块的横向侧面定位的多个间隔开的激光二极管泵浦源匹配。 块内的空腔谐振器被配置成紧密折叠的之字形配置。 来自二极管泵浦源的泵浦辐射由光纤校准，并与光栅耦合到之字形的顶点。 折叠角小于20°，优选小于10°，并且被选择为将泵辐射与模式体积进行匹配。 阻止了激光块的寄生振荡。 在替代实施例中，泵浦源与激光材料块分离，并且通过使用透镜光学耦合到块。 在第二替代实施例中，泵浦源与激光材料块分离，并且借助于多个光纤光学耦合到该块。

公开(公告)号：US4897849A

公开(公告)日：1990-01-30

申请号：US231511

申请日：1988-08-12

Applicant: John L. Hughes

Inventor： John L. Hughes

IPC: H01S3/06 ,  H01S3/093 ,  H01S3/131 ,  H01S3/23

CPC classification number: H01S3/2325 ,  H01S3/0606 ,  H01S3/093 ,  H01S3/1312 ,  H01S3/0625 ,  H01S3/07 ,  H01S3/08095 ,  H01S3/0813 ,  H01S3/115 ,  H01S3/1301

Abstract: A compact laser oscillator-amplifier system comprising an oscillator section including slab laser medium (1) with laser beam reflecting coating (4) operating in an open cavity configuration with a bevelled substrate (8) having laser beam reflecting surface (7) and including bevelled end surfaces (11) and end mirrors (12). Coupled to the laser oscillator via polarizing prism (14) and mirror (15) is an amplifier section of similar construction which includes slab laser medium (2). The oscillator and amplifier laser media (1, 2) are excited by a common optical excitation source (3) which is positioned between the oscillator and amplifier sections and which directs light through optical filters (9) to the laser slabs (1, 2).

Abstract translation: 一种紧凑型激光振荡器放大器系统，包括振荡器部分，该振荡器部分包括具有激光束反射涂层（4）的平板激光介质（1），激光束反射涂层（4）以具有激光束反射表面（7）的倾斜基板（8）以开放空腔结构操作并且包括倾斜 端面（11）和端面镜（12）。 通过偏振棱镜（14）和反射镜（15）耦合到激光振荡器是包括平板激光介质（2）的类似结构的放大器部分。 振荡器和放大器激光介质（1,2）由位于振荡器和放大器部分之间的普通光学激发源（3）激发，并且将光通过滤光器（9）引导到激光板（1,2） 。

公开(公告)号：US20170317465A1

公开(公告)日：2017-11-02

申请号：US15649897

申请日：2017-07-14

Applicant: Candela Corporation

Inventor： Jayant D. Bhawalkar ,  Xiaoming Shang ,  Jinze Qiu ,  Christopher J. Jones ,  James Hsia

IPC: H01S3/16 ,  H01S3/06 ,  H01S3/067 ,  H01S3/08 ,  H01S3/092 ,  H01S3/094 ,  H01S3/131 ,  H01S3/11 ,  H01S3/109 ,  H01S3/23 ,  H01S3/113 ,  H01S3/10 ,  H01S3/00

CPC classification number: H01S3/1633 ,  H01S3/0092 ,  H01S3/061 ,  H01S3/0617 ,  H01S3/0625 ,  H01S3/0627 ,  H01S3/06754 ,  H01S3/08081 ,  H01S3/092 ,  H01S3/094053 ,  H01S3/094061 ,  H01S3/094069 ,  H01S3/10023 ,  H01S3/109 ,  H01S3/1115 ,  H01S3/113 ,  H01S3/1312 ,  H01S3/1611 ,  H01S3/1643 ,  H01S3/2308 ,  H01S2301/02

Abstract: A MOPA laser system that includes a seed laser configured to output pulsed laser light, an amplifier configured to receive and amplify the pulsed laser light emitted by the seed laser; and a pump laser configured to deliver a pump laser beam to both the seed laser and the amplifier.

公开(公告)号：US20170229835A1

公开(公告)日：2017-08-10

申请号：US15098554

申请日：2016-04-14

Applicant: JGM Associates, Inc.

Inventor： Jeffrey G. Manni

IPC: H01S3/08 ,  H01S3/0941 ,  H01S3/16 ,  H01S3/06

CPC classification number: H01S3/08095 ,  H01S3/0606 ,  H01S3/0625 ,  H01S3/0941 ,  H01S3/1618 ,  H01S3/2308 ,  H01S2301/02

Abstract: A laser amplifier includes a broadband laser gain medium having a first lateral face spaced from an opposing second lateral face at a wedge angle with respect to the first lateral face. At least the first lateral face receives a pump beam and one of the first and second lateral faces receives a seed beam. A first coating on the first lateral face is highly transmissive at the pump beam wavelength. A second coating is disposed on the second lateral face. In one example, the first coating is highly reflective at the seed beam wavelength over a first wavelength band and the second coating is highly reflective at the seed beam wavelength over a second wavelength band (partially or fully) overlapping the first wavelength band.

公开(公告)号：US09726820B2

公开(公告)日：2017-08-08

申请号：US14682539

申请日：2015-04-09

Applicant: RAYTHEON COMPANY

Inventor： David M. Filgas ,  Robert D. Stultz

IPC: G02B6/26 ,  G02B6/42 ,  G02B6/10 ,  G02B6/122 ,  G02B6/12 ,  H01S3/063 ,  H01S3/06 ,  H01S3/08 ,  H01S3/0941 ,  H01S3/042 ,  H01S3/16

CPC classification number: G02B6/1228 ,  G02B6/12007 ,  G02B6/4296 ,  G02B6/4298 ,  G02B2006/12159 ,  H01S3/042 ,  H01S3/0617 ,  H01S3/0625 ,  H01S3/0632 ,  H01S3/0637 ,  H01S3/08072 ,  H01S3/09415 ,  H01S3/1643

Abstract: A planar wave guide (PWG) having a first end for coupling to a light pump and a second end opposite to the first end and including a first cladding layer; a second cladding layer; and a uniformly doped core layer between the first cladding layer and the second cladding layer, wherein the core layer is tapered having a smaller thickness at the first end and a larger thickness at the second end, and wherein a ratio of the core thickness to thickness of the cladding layers is smaller at the first end and larger at the second end.

公开(公告)号：US20170107966A1

公开(公告)日：2017-04-20

申请号：US15123327

申请日：2015-03-04

Applicant: DENSO CORPORATION ,  INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INTITUTES OF NATURAL SCIENCES

Inventor： Kenji KANEHARA ,  Akimitsu SUGIURA ,  Takunori TAIRA

IPC: F02P23/04 ,  H01S3/11 ,  H01S5/40 ,  H01S3/16 ,  H01S3/094 ,  H01S3/0941

CPC classification number: H01S3/0625 ,  F02P23/04 ,  G02B6/4296 ,  H01S3/025 ,  H01S3/0621 ,  H01S3/0627 ,  H01S3/094053 ,  H01S3/094076 ,  H01S3/09415 ,  H01S3/1115 ,  H01S3/113 ,  H01S3/1611 ,  H01S3/1643 ,  H01S5/0064 ,  H01S5/02252 ,  H01S5/02284 ,  H01S5/4012 ,  H01S5/4025 ,  H01S5/405

Abstract: A laser ignition device capable of achieving stable ignition, preventing deterioration of a semiconductor laser element is provided, by suppressing the intensity of oscillated light leakage leaking towards semiconductor laser side from the laser resonator with a simple configuration. A laser ignition device 7 includes an excitation light source 1 emitting coherent excitation light LPMP, an optical element 2 transmitting excitation light LPMP, a laser resonator 3 oscillating oscillated light having high energy density by being irradiated with excitation light LPMP, and condensing means 6 condensing the oscillated light LPLS oscillated by the laser resonator 3. Moreover, the laser ignition device 7 is provided with a light-transmissive-reflective film 5 disposed between the excitation light source 1 and the laser resonator 3. The light-transmissive-reflective is film 5 permeating the excitation light LPMP having short wavelength and reflecting oscillated light leakage LLEAK having long wavelength.

公开(公告)号：US20160099550A1

公开(公告)日：2016-04-07

申请号：US14869212

申请日：2015-09-29

Applicant: CANON KABUSHIKI KAISHA

Inventor： Kohei Okamoto

IPC: H01S5/40 ,  G01J1/42 ,  H01S5/42 ,  H01S5/04 ,  H01S5/14 ,  H01S5/183

CPC classification number: G01J1/4257 ,  H01S3/0606 ,  H01S3/061 ,  H01S3/0625 ,  H01S3/094049 ,  H01S5/14 ,  H01S5/4031 ,  H01S5/423

Abstract: A laser apparatus includes an active medium, a first reflection portion, a second reflection portion, a first laser array including a plurality of semiconductor lasers, a third reflection portion configured to reflect at least part of light emitted from the first laser array and transmitted through the active medium, and a fourth reflection portion configured to transmit at least part of light emitted from the first laser array, and to reflect at least part of light reflected by the third reflection portion and transmitted through the active medium. The fourth reflection portion is disposed across the plurality of semiconductor lasers including respective light-emitting regions of the plurality of semiconductor lasers of the first laser array.

Abstract translation: 激光装置包括有源介质，第一反射部分，第二反射部分，包括多个半导体激光器的第一激光器阵列，第三反射部分，被配置为反射从第一激光器阵列发出的光的至少一部分并透射 所述有源介质和第四反射部分被配置为透射从所述第一激光器阵列发射的光的至少一部分，并且反射由所述第三反射部分反射并透射通过所述活性介质的光的至少一部分。 第四反射部分跨越包括第一激光器阵列的多个半导体激光器的各个发光区域的多个半导体激光器设置。