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1. 发明授权

US09722392B2 Laser systems and related methods 有权
公开(公告)号：US09722392B2
公开(公告)日：2017-08-01
申请号：US15035765
申请日：2014-11-19
申请人： Candela Corporation
发明人： Jayant D. Bhawalkar , Xiaoming Shang , Jinze Qiu , Christopher J. Jones , James Hsia
IPC分类号： H01S3/16 , H01S3/08 , H01S3/131 , H01S3/23 , H01S3/067 , H01S3/092 , H01S3/109 , H01S3/11 , H01S3/06 , H01S3/094 , H01S3/10 , H01S3/113 , H01S3/00
CPC分类号： 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
摘要： 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.

2. 发明授权

US09118164B1 Composite laser gain medium 有权
标题翻译：复合激光增益介质
公开(公告)号：US09118164B1
公开(公告)日：2015-08-25
申请号：US14185000
申请日：2014-02-20
申请人： U.S. Army Research Laboratory
发明人： George Alex Newburgh
IPC分类号： H01S3/30 , H01S3/067 , H01S3/16 , H01S3/091 , H01S3/06
CPC分类号： H01S3/0632 , H01S3/0625 , H01S3/0627 , H01S3/0672 , H01S3/08081 , H01S3/09403 , H01S3/09408 , H01S3/0941 , H01S3/09415 , H01S3/161 , H01S3/1616 , H01S3/1618 , H01S3/1643
摘要： A composite laser gain medium is comprised of a first rare-earth element doped core; and a second rare-earth element doped cladding, at least partially, adjacent to the core. A portion of the lasing by the cladding at one wavelength within the composite laser gain medium is absorbed by the core so as to cause lasing of the core at a different wavelength. At least two distinct rare earth element pairs may be used in embodiments: (1) thulium (Tm) as a cladding rare-earth dopant and holmium (Ho) as the core rare-earth dopant; and (2) ytterbium (Yb) as a cladding rare-earth dopant and erbium (Er) as the core rare-earth dopant. Other rare earth element pairs are also believed possible. The laser composite gain medium may be configured to have a slab, or a cylindrical geometry.
摘要翻译：复合激光增益介质由第一稀土元素掺杂芯组成; 以及至少部分地与所述芯相邻的第二稀土元素掺杂包层。由复合激光增益介质中的一个波长处的包层的激光的一部分被芯吸收，以引起芯在不同波长的激光。在实施例中可以使用至少两个不同的稀土元素对：（1）作为包覆稀土掺杂剂的ium（Tm）和作为核稀土掺杂剂的钬（Ho）; 和（2）作为包覆稀土掺杂剂的镱（Yb）和作为核稀土掺杂剂的铒（Er）。其他稀土元素对也被认为是可能的。激光复合增益介质可以被配置为具有板坯或圆柱形几何形状。

3. 发明申请

US20150236470A1 COMPOSITE LASER GAIN MEDIUM 有权
标题翻译：复合激光增益介质
公开(公告)号：US20150236470A1
公开(公告)日：2015-08-20
申请号：US14185000
申请日：2014-02-20
申请人： U.S. Army Research Laboratory ATTN: RDRL-LOC-I
发明人： George Alex Newburgh
IPC分类号： H01S3/067 , H01S3/091 , H01S3/06 , H01S3/16
CPC分类号： H01S3/0632 , H01S3/0625 , H01S3/0627 , H01S3/0672 , H01S3/08081 , H01S3/09403 , H01S3/09408 , H01S3/0941 , H01S3/09415 , H01S3/161 , H01S3/1616 , H01S3/1618 , H01S3/1643
摘要： A composite laser gain medium is comprised of a first rare-earth element doped core; and a second rare-earth element doped cladding, at least partially, adjacent to the core. A portion of the lasing by the cladding at one wavelength within the composite laser gain medium is absorbed by the core so as to cause lasing of the core at a different wavelength. At least two distinct rare earth element pairs may be used in embodiments: (1) thulium (Tm) as a cladding rare-earth dopant and holmium (Ho) as the core rare-earth dopant; and (2) ytterbium (Yb) as a cladding rare-earth dopant and erbium (Er) as the core rare-earth dopant. Other rare earth element pairs are also believed possible. The laser composite gain medium may be configured to have a slab, or a cylindrical geometry.
摘要翻译：复合激光增益介质由第一稀土元素掺杂芯组成; 以及至少部分地与所述芯相邻的第二稀土元素掺杂包层。由复合激光增益介质中的一个波长处的包层的激光的一部分被芯吸收，以引起芯在不同波长的激光。在实施例中可以使用至少两个不同的稀土元素对：（1）作为包覆稀土掺杂剂的ium（Tm）和作为核稀土掺杂剂的钬（Ho）; 和（2）作为包覆稀土掺杂剂的镱（Yb）和作为核稀土掺杂剂的铒（Er）。其他稀土元素对也被认为是可能的。激光复合增益介质可以被配置为具有板坯或圆柱形几何形状。

4. 发明申请

US20140268309A1 SUPPRESSION OF AMPLIFIED SPONTANEOUS EMISSION (ASE) WITHIN LASER PLANAR WAVEGUIDE DEVICES 有权
标题翻译：在激光平面波导装置中抑制放大的自发放电（ASE）
公开(公告)号：US20140268309A1
公开(公告)日：2014-09-18
申请号：US13796309
申请日：2013-03-12
申请人： RAYTHEON COMPANY
发明人： Friedrich Strohkendl
IPC分类号： H01S3/063 , G02B6/02
CPC分类号： H01S3/0606 , G02B6/10 , H01S3/0612 , H01S3/0615 , H01S3/0625 , H01S3/063 , H01S3/0632 , H01S3/1608 , H01S3/161 , H01S3/1611 , H01S3/1616 , H01S3/1618 , H01S3/1623 , H01S3/1643 , H01S3/1698 , H01S3/2308 , H01S5/028 , H01S5/50 , H01S2301/02
摘要： Described herein are devices and techniques for suppressing parasitic modes in planar waveguide amplifier structures. One or more of the side and end facets of a planar waveguide amplifier are angled with respect to a fast axis defined in a transverse plane perpendicular to a core region. A relationship between glancing in-plane angles of incidence and threshold bevel angles θT can be used to select side bevel angles θS to suppress parasitics by redirecting amplified spontaneous emission (ASE) from the core. It is possible to select the one or more bevel angles θS to be great enough to substantially redirect all but ballistic photons of any guided modes, effectively narrowing a numerical aperture of the planar waveguide amplifier along a slow axis, defined in a transverse plane perpendicular to the fast axis. Beneficially, such improvements can be realized for three part waveguide structures (e.g., cladding-core-cladding), with substantially smooth edge facets.
摘要翻译：这里描述了用于抑制平面波导放大器结构中的寄生模式的装置和技术。平面波导放大器的一个或多个侧面和端面相对于垂直于芯部区域的横向平面中限定的快轴成角度。扫描面内入射角和阈值斜角角度之间的关系; T可用于选择侧斜角和角度; S通过将放大的自发发射（ASE）从核心重定向来抑制寄生效应。可以选择一个或多个斜角和角度; S足够大以重新定向任何导向模式的所有弹道光子，有效地使平面波导放大器的数值孔径沿着横向平面中限定的慢轴变窄垂直于快轴。有利的是，可以实现具有基本平滑的边缘面的三部分波导结构（例如，包层芯包层）的这种改进。

5. 发明申请

US20140211301A1 HIGH-GAIN FACE-PUMPED SLAB-AMPLIFIER 有权
标题翻译：高增益面部抽吸式放大器
公开(公告)号：US20140211301A1
公开(公告)日：2014-07-31
申请号：US13753738
申请日：2013-01-30
申请人： COHERENT, INC.
发明人： Andrei STARODOUMOV , Norman HODGSON
IPC分类号： H01S3/16
CPC分类号： H01S3/16 , H01S3/0057 , H01S3/0085 , H01S3/0405 , H01S3/042 , H01S3/0606 , H01S3/0625 , H01S3/06758 , H01S3/094084 , H01S3/0941 , H01S3/1618 , H01S3/1643 , H01S3/2316 , H01S3/2333 , H01S5/4031
摘要： An optical amplifier for use as a final amplification stage for a fiber-MOPA has a gain-element including a thin wafer or chip of ytterbium-doped YAG. An elongated gain-region is formed in gain-element by multiple incidences of radiation from a diode-laser bar.
摘要翻译：用作光纤MOPA的最终放大级的光放大器具有包括掺镱YAG的薄晶片或芯片的增益元件。通过来自二极管 - 激光条的多次辐射，在增益元件中形成细长的增益区域。

6. 发明授权

US08422524B2 Rotary disk laser and amplifier configurations 有权
标题翻译：旋转盘激光和放大器配置
公开(公告)号：US08422524B2
公开(公告)日：2013-04-16
申请号：US12481225
申请日：2009-06-09
申请人： Santanu Basu
发明人： Santanu Basu
IPC分类号： H01S3/14
CPC分类号： H01S3/0604 , F28D15/00 , F28D19/04 , G02F1/3501 , H01S3/025 , H01S3/042 , H01S3/0606 , H01S3/0608 , H01S3/0612 , H01S3/0617 , H01S3/0621 , H01S3/0625 , H01S3/07 , H01S3/08009 , H01S3/08095 , H01S3/083 , H01S3/094084 , H01S3/0941 , H01S3/102 , H01S3/1026 , H01S3/1055 , H01S3/2333 , H01S3/2341 , H01S3/2383 , H01S5/024 , H01S5/02423
摘要： There is provided a rotary disk laser module including disk comprised of at least one lasing material. The lasing material may be excited by a laser excitation source, such as an optical pump beam directed onto the disk. The laser gain region contains excited lasing material and extends between the first and second surfaces of the disk. A laser generator is formed when the gain region is brought into optical communication with a laser generator. A laser generator may be a laser oscillator or a laser amplifier. The disk may move in order to enable various lasing functionality to the laser module. For instance, the disk may rotate, translate, or tilt to rotate the gain region, provide various quantum effects, or to enable heat transfer with a heat sink. A high-power laser generator may be formed by using a number of disks containing lasing material, exciting the lasing material using at least one laser excitation source, and bringing them into optical communication with a laser generator.
摘要翻译：提供了包括由至少一个激光材料构成的盘的旋转盘激光器模块。激光材料可以被诸如被引导到盘上的光泵浦光束的激光激发源激发。激光增益区域包含激发的激光材料并在盘的第一和第二表面之间延伸。当增益区域与激光发生器进行光通信时，形成激光发生器。激光发生器可以是激光振荡器或激光放大器。为了对激光模块实现各种激光功能，磁盘可以移动。例如，盘可以旋转，平移或倾斜以旋转增益区域，提供各种量子效应，或者实现与散热器的热传递。可以通过使用包含激光材料的多个盘来形成大功率激光发生器，使用至少一个激光源激发激光材料，并使它们与激光发生器进行光通信。

7. 发明申请

US20130039378A1 SOLID STATE THIN DISK LASER 有权
标题翻译：固态薄磁盘激光器
公开(公告)号：US20130039378A1
公开(公告)日：2013-02-14
申请号：US13655478
申请日：2012-10-19
申请人： Huazhong University of Science and Technology
发明人： Xiao ZHU , Guangzhi ZHU , Changhong ZHU , Lijun QI , Jianli SHANG , Xingyun DUAN , Peng CHEN
IPC分类号： H01S3/0941
CPC分类号： H01S3/0604 , H01S3/0404 , H01S3/0407 , H01S3/042 , H01S3/0623 , H01S3/0625 , H01S3/08059 , H01S3/09408 , H01S3/094084 , H01S3/09415
摘要： A laser including a semiconductor laser stack group, a beam compositor, a pump beam collimator, a thin-disk laser crystal, a first and a second parabolic reflectors with the same facial contour function, a corrective reflector, an output mirror, and a jet-flow impact cooling system. The thin-disk laser crystal and the output mirror form a laser resonant cavity. The first parabolic reflector, second parabolic reflector, thin-disk laser crystal, and corrective reflector form a multi-pumping focus cavity. The jet-flow impact cooling system is used for cooling the thin-disk laser crystal. The pump light produced by the semiconductor laser stack group is composited by the beam compositor, collimated by the pump light collimator, and enters the multi-pumping focus cavity. Within the multi-pumping focus cavity, the pump light is focused, collimated, and deflected to converge on the thin-disk laser crystal. The laser resonant cavity produces and outputs a laser beam.
摘要翻译：包括半导体激光堆叠组，光束合成器，泵浦光束准直器，薄盘激光晶体，具有相同面部轮廓功能的第一和第二抛物面反射器的激光器，校正反射器，输出反射镜和射流流冲击冷却系统。薄盘激光晶体和输出镜形成激光谐振腔。第一抛物面反射器，第二抛物面反射器，薄盘激光晶体和校正反射器形成多泵浦焦点腔。射流冲击冷却系统用于冷却薄盘激光晶体。由半导体激光堆组产生的泵浦光由光束合成器复合，由泵浦光准直器准直，并进入多泵浦聚焦腔。在多泵浦聚焦腔内，泵浦光被聚焦，准直和偏转以会聚在薄盘激光晶体上。激光谐振腔产生并输出激光束。

8. 发明授权

US08306074B2 Beam quality of the monoblock laser through use of a 1.5 micron external cavity partial reflector 失效
标题翻译：通过使用1.5微米外腔部分反射器的整体激光束的质量
公开(公告)号：US08306074B2
公开(公告)日：2012-11-06
申请号：US12848272
申请日：2010-08-02
申请人： John E. Nettleton , Lew Goldberg , Dallas N. Barr
发明人： John E. Nettleton , Lew Goldberg , Dallas N. Barr
IPC分类号： H01S3/11
CPC分类号： H01S3/0625 , H01S3/025 , H01S3/0606 , H01S3/0621 , H01S3/07 , H01S3/08054 , H01S3/082 , H01S3/1083 , H01S3/113
摘要： A monoblock laser cavity incorporates optical components for a short-pulse laser. These optical components are ‘locked’ into alignment forming an optical laser cavity for flash lamp or diode laser pumping. The optical laser cavity does not need optical alignment after it is fabricated, increasing the brightness of the monoblock laser.
摘要翻译：单块激光腔包含用于短脉冲激光器的光学部件。这些光学部件被锁定成对准，形成用于闪光灯或二极管激光泵浦的光学激光腔。光学激光腔在制造之后不需要光学对准，增加了单块激光器的亮度。

9. 发明授权

US08068525B2 Solid-state laser element 有权
标题翻译：固态激光元件
公开(公告)号：US08068525B2
公开(公告)日：2011-11-29
申请号：US12675447
申请日：2007-08-30
申请人： Shuhei Yamamoto , Takayuki Yanagisawa , Yasuharu Koyata , Yoshihito Hirano
发明人： Shuhei Yamamoto , Takayuki Yanagisawa , Yasuharu Koyata , Yoshihito Hirano
IPC分类号： H01S3/04
CPC分类号： H01S3/0632 , H01S3/0405 , H01S3/0625 , H01S3/09415 , H01S3/109 , H01S3/2383 , H01S2301/02
摘要： To achieve a solid-state laser element capable of outputting a high-power laser, in a planar waveguide type solid-state laser element that causes a plurality of fundamental laser beams to oscillate in a direction of an optic axis within a flat plate-like laser medium, and forms a waveguide structure in a thickness direction of the laser medium, which is a direction perpendicular to a principal surface of the flat plate-like laser medium, the laser medium is separated in a principal-surface width direction of the laser medium, which is a direction perpendicular to the direction of the optic axis and the thickness direction of the laser medium, by a groove extending in the direction of the optic axis within the laser medium.
摘要翻译：为了实现能够输出大功率激光器的固体激光元件，在平面波导型固态激光元件中，其使多个基本激光束沿平板状的光轴方向振荡激光介质，并且在垂直于平板状激光介质的主表面的方向上形成在激光介质的厚度方向上的波导结构，激光介质在激光器的主表面宽度方向上分离介质，其是垂直于光轴方向的方向和激光介质的厚度方向，通过在激光介质内沿光轴方向延伸的凹槽。

10. 发明申请

US20110182308A1 Monolithic Fiber Laser Beam Combiner 有权
标题翻译：单片光纤激光束组合器
公开(公告)号：US20110182308A1
公开(公告)日：2011-07-28
申请号：US11677904
申请日：2007-02-22
申请人： Alan Z. Ullman , Dennis G. Harris
发明人： Alan Z. Ullman , Dennis G. Harris
IPC分类号： H01S3/04 , H01S3/083
CPC分类号： H01S3/0608 , H01S3/0407 , H01S3/042 , H01S3/0602 , H01S3/0621 , H01S3/0625 , H01S3/08059 , H01S3/08063 , H01S3/08095 , H01S3/0816 , H01S3/094019 , H01S3/094038 , H01S3/094053 , H01S3/09408 , H01S3/094084 , H01S2301/02
摘要： A compact, light weight laser beam combiner includes a pair of concentric annular shells defining an annular cavity of an annular ring resonator having an annular solid laser gain medium disposed therein. The output ends of a plurality of low power and brightness fiber lasers are coupled into the cavity of the resonator such that fiber laser beams cause the gain medium in the resonator cavity to lase and produce an annular beam of laser light. Optical elements of the resonator are operable to feed a first portion of the laser light back through the resonator cavity to support regenerative lasing of the laser medium and to couple off a second portion of the laser light in the form of a circular beam of high power and high brightness laser light. A fluid may be circulated through the resonator cavity to cool the laser medium.
摘要翻译：紧凑，重量轻的激光束组合器包括一对同心环形壳体，其限定环形环形谐振器的环形空腔，环形谐振器具有设置在其中的环形固体激光增益介质。多个低功率和高亮度光纤激光器的输出端耦合到谐振器的空腔中，使得光纤激光束使谐振器腔中的增益介质发光并产生环形的激光束。谐振器的光学元件可操作以将激光的第一部分馈送通过谐振器腔，以支持激光介质的再生激光，并将激光的第二部分以大功率的圆形光束的形式耦合和高亮度激光。流体可以循环通过谐振腔，以冷却激光介质。

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