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1. 发明授权

US07760789B2 High energy solid-state laser with offset pump and extraction geometry 有权
标题翻译：具有偏移泵和提取几何形状的高能固态激光器
公开(公告)号：US07760789B2
公开(公告)日：2010-07-20
申请号：US12004193
申请日：2007-12-20
申请人： Kalin Spariosu , Alexander A. Betin
发明人： Kalin Spariosu , Alexander A. Betin
IPC分类号： H01S3/09
CPC分类号： H01S3/0941 , F41H13/00 , H01S3/0404 , H01S3/042 , H01S3/0604 , H01S3/0608 , H01S3/0612 , H01S3/0625 , H01S3/07 , H01S3/094053 , H01S3/094057 , H01S3/094084 , H01S3/102 , H01S3/1026 , H01S3/1608 , H01S3/1643
摘要： A laser system and method. The inventive laser includes an annular gain medium; a source of pump energy; and an arrangement for concentrating energy from the source on the gain medium. In a more specific implementation, a mechanism is included for rotating the gain medium to effect extraction of pump energy and cooling. In the illustrative embodiment, the pump source is a diode array. Energy from the array is coupled to the medium via an array of optical fibers. The outputs of the fibers are input to a concentrator that directs the pump energy onto a pump region of the medium. In the best mode, plural disks of gain media are arranged in an offset manner to provide a single resonator architecture. First and second mirrors are added to complete the resonator. In accordance with the inventive teachings, a method for pumping and cooling a laser is taught. In the illustrative embodiment, the inventive method includes the steps of providing a gain medium; pumping energy into a region of the gain medium; moving the medium; extracting energy from the region of the medium; and cooling region of the medium.
摘要翻译：激光系统和方法。本发明的激光器包括环形增益介质; 泵能源; 以及用于将来自源的能量集中在增益介质上的布置。在更具体的实施方案中，包括用于旋转增益介质以实现泵能量和冷却的提取的机制。在说明性实施例中，泵浦源是二极管阵列。来自阵列的能量通过光纤阵列耦合到介质。纤维的输出被输入到将泵浦能量引导到介质的泵区域上的浓缩器。在最佳模式中，增益介质的多个磁盘以偏移方式排列以提供单个谐振器结构。添加第一和第二反射镜以完成谐振器。根据本发明的教导，教导了用于泵送和冷却激光器的方法。在说明性实施例中，本发明的方法包括提供增益介质的步骤; 将能量泵入增益介质的区域; 移动媒体; 从介质区域提取能量; 和介质的冷却区域。

2. 发明申请

US20100150191A1 Solid-state suspension laser 有权
标题翻译：固态悬浮激光
公开(公告)号：US20100150191A1
公开(公告)日：2010-06-17
申请号：US12592232
申请日：2009-11-20
申请人： Alexander A. Betin , Kalin Spariosu
发明人： Alexander A. Betin , Kalin Spariosu
IPC分类号： H01S3/00
CPC分类号： H01S3/0602 , H01S3/02 , H01S3/0612 , H01S3/1603 , H01S3/169 , H01S3/20
摘要： 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.
摘要翻译：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。

3. 发明授权

US07391796B1 Ultra-low heat laser 有权
标题翻译：超低热激光
公开(公告)号：US07391796B1
公开(公告)日：2008-06-24
申请号：US11040220
申请日：2005-01-21
申请人： Kalin Spariosu
发明人： Kalin Spariosu
IPC分类号： H01S3/10 , H01S3/08
CPC分类号： H01S3/094 , H01S3/0078 , H01S3/08009 , H01S3/094038 , H01S3/1608 , H01S3/1643 , H01S3/2316
摘要： An ultra-low heat laser that does not rely on florescence cooling. Generally, the inventive laser includes a pump source operable at a pump frequency and a gain medium disposed to receive energy from the source and lase at a frequency close to the pump frequency. In the illustrative embodiment, the laser is a solid state laser having a gain medium which is resonantly pumped to lase at a frequency within 5% of the pump frequency. However, in the best mode and in accordance with the present teachings, the gain medium lases at a frequency within 1% of the pump frequency. In the illustrative embodiment, the laser gain medium ion has a rich Stark energy level structure and the laser active gain medium has oscillator strengths at transitions wavelengths that allow an ultra-low quantum defect operation. The pump source has a wavelength output centered to correspond to a predetermined pump band and an emission band subtended by an absorption bandwidth thereof.
摘要翻译：超低热激光器不依赖于荧光冷却。通常，本发明的激光器包括以泵频率操作的泵浦源和设置成从源极接收能量并以接近泵浦频率的频率驱动的增益介质。在说明性实施例中，激光器是具有增益介质的固体激光器，该增益介质被谐振地泵浦以在泵频率的5％内的频率变化。然而，在最佳模式中并且根据本教导，增益介质以在泵频率的1％内的频率变化。在说明性实施例中，激光增益介质离子具有丰富的斯塔克能级结构，并且激光有源增益介质在允许超低量子缺陷操作的跃迁波长处具有振荡器强度。泵浦源具有中心对应于预定的泵浦波段的波长输出和由其吸收带宽对向的发射波段。

4. 发明授权

US07324568B2 Modulated saturable absorber controlled laser 有权
标题翻译：调制饱和吸收器控制激光
公开(公告)号：US07324568B2
公开(公告)日：2008-01-29
申请号：US10820613
申请日：2004-04-08
申请人： Kalin Spariosu , Milton Birnbaum
发明人： Kalin Spariosu , Milton Birnbaum
IPC分类号： H01S3/11
CPC分类号： H01S3/0627 , G02F1/0126 , G02F1/3523 , H01S3/0604 , H01S3/08054 , H01S3/106 , H01S3/1061 , H01S3/1109 , H01S3/113
摘要： A modulated saturable absorber controlled laser. The laser includes an active medium; a saturable absorber material operationally coupled to the medium to serve as a passive Q switch; and an energy source disposed external to the medium for apply energy to the absorber. In particular embodiments, the energy source is a diode laser and focusing optics are included between the diode laser and the absorber. Modulation of the gain at the photon round trip time in the laser resonator causes a mode-locked laser output. A dichroic beamsplitter is included in this embodiment for directing energy to the absorber. In an alternative embodiment, the diode laser is a quasi-monolithic diode laser assembly ring.
摘要翻译：调制可饱和吸收器受控激光器。激光器包括活性介质; 可操作地耦合到介质以用作无源Q开关的可饱和吸收材料; 以及设置在介质外部以将能量施加到吸收器的能量源。在特定实施例中，能量源是二极管激光器，并且聚焦光学器件包括在二极管激光器和吸收器之间。在激光谐振器中调制光子往返时间的增益导致锁模激光输出。本实施例中包括二向色分束器，用于将能量引导到吸收器。在替代实施例中，二极管激光器是准单片二极管激光器组件环。

5. 发明申请

US20070183474A1 Laser with spectral converter 有权
标题翻译：激光与光谱转换器
公开(公告)号：US20070183474A1
公开(公告)日：2007-08-09
申请号：US11349016
申请日：2006-02-07
申请人： Kalin Spariosu , Alexander Betin
发明人： Kalin Spariosu , Alexander Betin
IPC分类号： H01S3/091 , H01S3/092
CPC分类号： H01S3/092 , B82Y20/00 , G02F1/3556 , H01S3/067 , H01S3/0915
摘要： A laser with a spectral converter. The novel laser includes a spectral converter adapted to absorb electromagnetic energy in a first frequency band and re-emit energy in a second frequency band, and a laser gain medium adapted to absorb the re-emitted energy and output laser energy. The spectral converter includes a plurality of quantum dots having an emission spectrum matching an absorption spectrum of the gain medium. In an illustrative embodiment, the spectral converter is adapted to convert broadband energy to narrowband energy, and the gain medium is a REI-doped solid-state laser gain medium.
摘要翻译：具有光谱转换器的激光器。新颖的激光器包括适于吸收第一频带中的电磁能并且在第二频带中重新发射能量的光谱转换器，以及适于吸收重新发射的能量并输出激光能量的激光增益介质。光谱转换器包括具有与增益介质的吸收光谱相匹配的发射光谱的多个量子点。在说明性实施例中，频谱转换器适于将宽带能量转换为窄带能量，并且增益介质是REI掺杂的固态激光增益介质。

6. 发明授权

US07046710B2 Gain boost with synchronized multiple wavelength pumping in a solid-state laser 失效
标题翻译：在固态激光器中同步多波长泵浦增益提升
公开(公告)号：US07046710B2
公开(公告)日：2006-05-16
申请号：US10650446
申请日：2003-08-28
申请人： Kalin Spariosu , Milton Birnbaum
发明人： Kalin Spariosu , Milton Birnbaum
IPC分类号： H01S3/97 , H01S3/92
CPC分类号： H01S3/0941 , H01S3/005 , H01S3/025 , H01S3/042 , H01S3/0606 , H01S3/061 , H01S3/0612 , H01S3/08095 , H01S3/09403 , H01S3/094038 , H01S3/094084 , H01S3/094096 , H01S3/09415 , H01S3/113 , H01S3/1608 , H01S3/1618 , H01S3/1643
摘要： A solid-state eye-safe laser and method with gain boost by dual-wavelength, synchronized pumplights. The laser includes a medium doped with ions that emit light at a laser wavelength as a result of the transition of electron energy from an upper energy level manifold to a lower energy level manifold. A first pumplight couples energy into the medium at a first wavelength that excites a first portion of the ions into said upper energy level manifold. A second pumplight couples energy into said medium at a second wavelength that excites a second portion of the ions to a third energy level manifold. A fraction of the ions relax to the upper energy level manifold and thereby increase the gain of the laser (2). The laser may be an erbium crystal laser, using yttrium-aluminum-garnet operating near 1640 nanometers. A second ion, such as ytterbium, may be diffused into the lasing medium, and an inter-ionic energy transfer employed to coupled the second pumplight energy to the upper level energy manifold of he laser transition.
摘要翻译：一种固态眼睛安全激光器和双波长同步斩波器的增益提升方法。激光器包括掺杂有离子的介质，其由于从上能量歧管向较低能级歧管转变的电子能量，激光波长发光。第一泵浦将能量以第一波长耦合到介质中，该第一波长将离子的第一部分激发到所述上部能量级歧管中。第二个光束将能量以第二波长耦合到所述介质中，该第二波长将离子的第二部分激发到第三能量级歧管。一部分离子松弛到上能量歧管，从而增加激光器的增益（2）。激光器可以是铒晶体激光器，使用在1640纳米附近操作的钇铝石榴石。诸如镱的第二离子可以扩散到激光介质中，并且将离子间能量转移用于将第二次照明能量耦合到激光转换的上层能量歧管。

7. 发明授权

US08213473B2 Laser based on quantum dot activated media 有权
标题翻译：激光基于量子点激活介质
公开(公告)号：US08213473B2
公开(公告)日：2012-07-03
申请号：US13044672
申请日：2011-03-10
申请人： Kalin Spariosu , Alexander A. Betin
发明人： Kalin Spariosu , Alexander A. Betin
IPC分类号： H01S3/16
CPC分类号： H01S3/0915 , H01S3/0604 , H01S3/0612 , H01S3/0627 , H01S3/07 , H01S3/092 , H01S3/09403 , H01S3/102 , H01S3/1026 , H01S3/1608 , H01S3/1618 , H01S3/169 , H01S3/1691 , H01S3/17 , H01S3/178
摘要： A laser gain medium and laser system include a host material, a plurality of quantum dots dispersed throughout the host material, and a plurality of laser active ions surrounding each of the quantum dots. The laser active ions are disposed in close proximity to the quantum dots such that energy absorbed by the quantum dots is transferred to the ions, thereby exciting the ions to produce laser output. In an illustrative embodiment, each quantum dot is surrounded by an external shell doped with the laser active ions.
摘要翻译：激光增益介质和激光系统包括主体材料，分散在整个主体材料中的多个量子点和围绕每个量子点的多个激光活性离子。激光活性离子设置在量子点附近，使得被量子点吸收的能量转移到离子中，从而激发离子以产生激光输出。在说明性实施例中，每个量子点被掺杂有激光活性离子的外壳包围。

8. 发明授权

US08000362B2 Solid-state suspension laser generation utilizing separate excitation and extraction 有权
标题翻译：利用单独激发和提取的固态悬浮激光产生
公开(公告)号：US08000362B2
公开(公告)日：2011-08-16
申请号：US12592232
申请日：2009-11-20
申请人： Alexander A. Betin , Kalin Spariosu
发明人： Alexander A. Betin , Kalin Spariosu
IPC分类号： H01S3/14 , H01S3/17 , H01S3/20
CPC分类号： H01S3/0602 , H01S3/02 , H01S3/0612 , H01S3/1603 , H01S3/169 , H01S3/20
摘要： 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.
摘要翻译：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，以便在泵浦期间实现最佳吸收效率和/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。

9. 发明授权

US07889767B2 Self-coherent combining technique for high power laser implementation and method 有权
标题翻译：大功率激光实现的自相干组合技术及方法
公开(公告)号：US07889767B2
公开(公告)日：2011-02-15
申请号：US10964383
申请日：2004-10-13
申请人： Alexander A. Betin , Kalin Spariosu
发明人： Alexander A. Betin , Kalin Spariosu
IPC分类号： H01S3/30
CPC分类号： H01S3/067 , H01S3/07 , H01S3/082 , H01S3/10092 , H01S3/2383
摘要： An optical arrangement comprising first and second guided structures for providing first and second beams of electromagnetic energy and a node for coherently combining said first and second beams in free space, that is, with an unguided structure. In the illustrative embodiment, the first and second structures are first and second fiber oscillators. The first and second fiber oscillators may be of unequal lengths. The node may be implemented with a polarizing beam splitter or a semi-reflective surface. Beam shaping optics are included in the node to collimate the first and second beams and provide a flat profile mode thereof. The outputs of plural first and second fiber oscillators are combined via plural nodes to provide a single high energy output beam. Amplifying elements may be disposed between nodes. The plural nodes may be disposed in a single integrated structure along with an outcoupler mirror to coherently phase lock the outputs of the plural oscillators.
摘要翻译：一种光学装置，包括用于提供第一和第二电磁能束的第一和第二引导结构，以及用于在自由空间，即非导向结构中相干地组合所述第一和第二光束的节点。在说明性实施例中，第一和第二结构是第一和第二光纤振荡器。第一和第二光纤振荡器可以具有不等长度。节点可以用偏振分束器或半反射表面来实现。光束成形光学器件包括在节点中以准直第一和第二光束并提供其平坦轮廓模式。多个第一和第二光纤振荡器的输出通过多个节点组合以提供单个高能量输出光束。放大元件可以设置在节点之间。多个节点可以与输出耦合器镜一起设置在单个集成结构中，以相位锁定多个振荡器的输出。

10. 发明授权

US07646796B2 Solid-state suspension laser with separate excitation and extraction 失效
标题翻译：固态悬浮激光器具有单独的激发和提取
公开(公告)号：US07646796B2
公开(公告)日：2010-01-12
申请号：US11804804
申请日：2007-05-21
申请人： Alexander A. Betin , Kalin Spariosu
发明人： Alexander A. Betin , Kalin Spariosu
IPC分类号： H01S3/17 , H01S3/20 , H01S3/14
CPC分类号： H01S3/0602 , H01S3/02 , H01S3/0612 , H01S3/1603 , H01S3/169 , H01S3/20
摘要： A laser. The novel laser includes a gain medium, a pump source adapted to optically excite the gain medium in a first location, and a resonator adapted to extract energy from the gain medium in a second location distinct from the first location. In an illustrative embodiment, the gain medium is comprised of a plurality of solid-state gain particles suspended in a fluid. The gain medium is adapted to flow, and optical excitation of the gain medium occurs outside of the resonator. In a preferred embodiment, the flow velocity and the density of gain particles in the gain medium are adjusted for optimal absorption efficiency during optical excitation and then for optimal extraction efficiency in the resonator. In addition, the resonator may be shaped for optimal extraction efficiency, while pump modules that hold the gain medium during optical excitation are shaped for optimal absorption efficiency.
摘要翻译：雷射。新型激光器包括增益介质，适于在第一位置光学激发增益介质的泵浦源，以及适于在不同于第一位置的第二位置从增益介质提取能量的谐振器。在说明性实施例中，增益介质由悬浮在流体中的多个固态增益粒子组成。增益介质适于流动，并且增益介质的光激发发生在谐振器外部。在优选实施例中，调节增益介质中的增益粒子的流速和密度，以获得在光学激发期间的最佳吸收效率，然后在谐振器中获得最佳的提取效率。此外，谐振器可以被成形为用于最佳的提取效率，而在光学激发期间保持增益介质的泵模块被成形以获得最佳的吸收效率。

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