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。

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。

公开(公告)号：US07742512B2

公开(公告)日：2010-06-22

申请号：US10771047

申请日：2004-02-02

申请人： Kalin Spariosu ,  Alexander A. Betin

发明人： Kalin Spariosu ,  Alexander A. Betin

IPC分类号： H01S3/13 ,  H01S3/10 ,  H01S3/091 ,  H01S3/08

CPC分类号： H01S3/067 ,  H01S3/0675 ,  H01S3/08045 ,  H01S3/0805 ,  H01S3/09415 ,  H01S3/1608 ,  H01S3/1643 ,  H01S3/2383

摘要： A robust scalable laser. The laser includes plural fiber laser resonators. A cavity that is external to the fiber laser resonators combines plural laser beams output from the plural fiber laser resonators into a single output laser beam. In a specific embodiment, the plural fiber laser resonators are eye-safe double-clad Er:YAG laser resonators that are pumped via laser diode arrays.

摘要翻译： 强大的可扩展激光。 激光器包括多个光纤激光谐振器。 在光纤激光谐振器外部的空腔将从多个光纤激光谐振器输出的多个激光束组合成单个输出激光束。 在具体实施例中，多个光纤激光谐振器是通过激光二极管阵列泵浦的眼睛安全的双包层Er：YAG激光谐振器。

公开(公告)号：US20080130702A1

公开(公告)日：2008-06-05

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： H01S3/06

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。

公开(公告)号：US07346091B2

公开(公告)日：2008-03-18

申请号：US11033585

申请日：2005-01-12

申请人： Kalin Spariosu ,  Alexander A. Betin

发明人： Kalin Spariosu ,  Alexander A. Betin

IPC分类号： H01S3/091

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.

公开(公告)号：US08050303B2

公开(公告)日：2011-11-01

申请号：US11403090

申请日：2006-04-12

申请人： Kalin Spariosu ,  Alexander A. Betin ,  Michael LoCascio ,  Wei Liu

发明人： Kalin Spariosu ,  Alexander A. Betin ,  Michael LoCascio ,  Wei Liu

IPC分类号： H01S3/14

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. The novel laser gain medium includes 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 non-radiatively transferred to the ions via a Forster resonant energy transfer, 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。 新型激光增益介质包括主体材料，分散在整个主体材料中的多个量子点以及围绕每个量子点的多个激光活性离子。 激光有源离子靠近量子点设置，使得被量子点吸收的能量经由福斯特共振能量转移被非辐射转移到离子上，由此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。

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。

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。

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。

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。