公开(公告)号：WO2003107495A3

公开(公告)日：2003-12-24

申请号：PCT/US2003/018545

申请日：2003-06-13

Applicant: RAYTHEON COMPANY

Inventor： BYREN, Robert W. ,  GRIFFIN, William S. ,  BETIN, Alexander A.

IPC: H01S3/04

Abstract: A laser cooling apparatus and method. Generally, the inventive apparatus includes a mechanism for transporting sensible thermal energy from a solid state laser and for communicating waste fluorescent radiation therefrom as well. In the illustrative embodiment, the apparatus includes an optically transparent manifold (10) with an inlet port (12), an exhaust port (19) and a plurality of spray nozzles (16) therebetween adapted to direct a cooling fluid on the laser medium (20) of a laser (30). In addition, the optically transparent manifold (10) is used to permit waste fluorescent radiation to escape the confines of the laser and cooling system means such that said fluorescent radiation may be optically directed to an external heat sink such as free space.

公开(公告)号：WO2007046918A3

公开(公告)日：2007-04-26

申请号：PCT/US2006/029383

申请日：2006-07-27

Applicant: RAYTHEON COMPANY

Inventor： BETIN, Alexander A. ,  SHKUNOV, Vladimir

IPC: H01S3/00 ,  H01S3/23 ,  H01S3/10

Abstract: A high extraction efficiency laser system (30). The novel laser system (30) includes a master oscillator (32) for providing a laser beam, an amplifier (18) adapted to amplify the laser beam, and an aberrator (42) for aberrating the laser beam to prevent the formation of caustic intensity patterns within the amplifier (18). In an illustrative embodiment, the laser system (30) also includes a depolarizer (44) disposed between the master oscillator (32) and the amplifier (18) to reduce the contrast of speckle intensity patterns in the amplifier (18), and a mechanism (46) adapted to rotate or otherwise move the aberrator (42) to time-vary the aberrations in the beam in order to increase the spatial homogenization of saturation and extraction patterns in the amplifier (18). In a preferred embodiment, the coherence length of the beam is also shortened to reduce interference fringes in the amplifier.

公开(公告)号：WO2004064209A1

公开(公告)日：2004-07-29

申请号：PCT/US2003/039485

申请日：2003-12-11

Applicant: RAYTHEON COMPANY

Inventor： BETIN, Alexander A. ,  BYREN, Robert W ,  FRANZ, Dana P.

IPC: H01S3/10

CPC classification number: H01S3/2333 ,  H01S3/10076

Abstract: A self-adjusting interferometric outcoupler being an optical system (100) comprising a first system (112) for generating a first beam, a second system (122) for receiving the first beam and returning a second beam, and an interferometer (116) positioned to couple the first beam to the second system (122) and to receive and output the second beam, wherein the interferometer (116) is also shared by the first system (112) and/or the second system (122) to control the frequency of the first beam and/or the second beam, respectively. In the illustrative embodiment, the first system (112) is a master oscillator, the second system (122) is a phase conjugate mirror, and the optical system (100) further includes a power amplifier (118) positioned to amplify the first beam during a first pass and to amplify the second beam during a second pass.

Abstract translation: 一种自调整干涉放电耦合器，其是包括用于产生第一光束的第一系统（112）和用于接收第一光束并返回第二光束的第二系统（122）的光学系统（100），以及定位 将所述第一光束耦合到所述第二系统（122）并且接收和输出所述第二光束，其中所述干涉仪（116）还由所述第一系统（112）和/或所述第二系统（122）共享以控制所述频率 的第一光束和/或第二光束。 在说明性实施例中，第一系统（112）是主振荡器，第二系统（122）是相位共轭反射镜，并且光学系统（100）还包括功率放大器（118），功率放大器（118）定位成在 第一遍，并在第二次通过期间放大第二光束。

公开(公告)号：WO2006026037A1

公开(公告)日：2006-03-09

申请号：PCT/US2005/027472

申请日：2005-08-03

Applicant: RAYTHEON COMPANY

Inventor： BETIN, Alexander A. ,  SPARIOSU, Kalin

IPC: H01S3/14 ,  H01S3/06 ,  H01S3/20 ,  H01S3/16 ,  H01S3/17 ,  H01S3/02 ,  H01S3/042

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

Abstract: A solid-state suspension laser (10). The novel laser (10) includes a gain medium (12) comprised of a plurality of solid-state gain particles (26) suspended in a fluid (28). The laser (10) also includes a pump source (20) for pumping the gain particles (26) and a resonator (14) for amplifying and outputting laser light generated by the gain medium (12). In an illustrative embodiment, the gain medium (12) is adapted to flow, and the pumping of the gain medium (12) occurs outside of the resonator (14). The flow velocities and the densities of the gain particles (26) in the gain medium (12) can be optimized for optimal absorption efficiency during the pumping and/or for optimal extraction efficiency in the resonator (14) as well as for overall laser performance optimization, including power, efficiency and beam quality scalability.

Abstract translation: 固态悬浮激光（10）。 新型激光器（10）包括由悬置在流体（28）中的多个固态增益粒子（26）组成的增益介质（12）。 激光器（10）还包括用于泵浦增益粒子（26）的泵浦源（20）和用于放大和输出由增益介质（12）产生的激光的谐振器（14）。 在说明性实施例中，增益介质（12）适于流动，并且增益介质（12）的泵送发生在谐振器（14）的外部。 可以优化增益介质（12）中的增益粒子（26）的流速和密度，以便在泵浦期间获得最佳的吸收效率和/或在谐振器（14）中获得最佳的提取效率以及对于整个激光器性能 优化，包括功率，效率和光束质量的可扩展性。

公开(公告)号：EP1514332B1

公开(公告)日：2006-10-11

申请号：EP03737033.5

申请日：2003-06-13

Applicant: RAYTHEON COMPANY

Inventor： BYREN, Robert W. ,  GRIFFIN, William S. ,  BETIN, Alexander A.

IPC: H01S3/00

CPC classification number: H01S3/04 ,  H01S3/042 ,  H01S3/0941

Abstract: A laser cooling apparatus and method. Generally, the inventive apparatus includes a mechanism for transporting sensible thermal energy from a solid state laser and for communicating waste fluorescent radiation therefrom as well. In the illustrative embodiment, the apparatus includes an optically transparent manifold (10) with an inlet port (12), an exhaust port (19) and a plurality of spray nozzles (16) therebetween adapted to direct a cooling fluid on the laser medium (20) of a laser (30). In addition, the optically transparent manifold (10) is used to permit waste fluorescent radiation to escape the confines of the laser and cooling system means such that said fluorescent radiation may be optically directed to an external heat sink such as free space.

公开(公告)号：EP1581988A1

公开(公告)日：2005-10-05

申请号：EP03815203.9

申请日：2003-12-11

Applicant: RAYTHEON COMPANY

Inventor： BETIN, Alexander A. ,  BYREN, Robert W ,  FRANZ, Dana P.

IPC: H01S3/10 ,  H01S3/23 ,  H01S3/106

CPC classification number: H01S3/2333 ,  H01S3/10076

Abstract: A self-adjusting interferometric outcoupler being an optical system (100) comprising a first system (112) for generating a first beam, a second system (122) for receiving the first beam and returning a second beam, and an interferometer (116) positioned to couple the first beam to the second system (122) and to receive and output the second beam, wherein the interferometer (116) is also shared by the first system (112) and/or the second system (122) to control the frequency of the first beam and/or the second beam, respectively. In the illustrative embodiment, the first system (112) is a master oscillator, the second system (122) is a phase conjugate mirror, and the optical system (100) further includes a power amplifier (118) positioned to amplify the first beam during a first pass and to amplify the second beam during a second pass.

公开(公告)号：EP1514332A2

公开(公告)日：2005-03-16

申请号：EP03737033.5

申请日：2003-06-13

Applicant: Raytheon Company

Inventor： BYREN, Robert W. ,  GRIFFIN, William S. ,  BETIN, Alexander A.

IPC: H01S3/00

CPC classification number: H01S3/04 ,  H01S3/042 ,  H01S3/0941

Abstract: A laser cooling apparatus and method. Generally, the inventive apparatus includes a mechanism for transporting sensible thermal energy from a solid state laser and for communicating waste fluorescent radiation therefrom as well. In the illustrative embodiment, the apparatus includes an optically transparent manifold (10) with an inlet port (12), an exhaust port (19) and a plurality of spray nozzles (16) therebetween adapted to direct a cooling fluid on the laser medium (20) of a laser (30). In addition, the optically transparent manifold (10) is used to permit waste fluorescent radiation to escape the confines of the laser and cooling system means such that said fluorescent radiation may be optically directed to an external heat sink such as free space.

公开(公告)号：EP1949509B1

公开(公告)日：2018-01-03

申请号：EP06813241.4

申请日：2006-07-27

Applicant: RAYTHEON COMPANY

Inventor： BETIN, Alexander A. ,  SHKUNOV, Vladimir

IPC: H01S3/00 ,  H01S3/23 ,  H01S3/10

CPC classification number: H01S3/2333 ,  H01S3/005 ,  H01S3/0085 ,  H01S3/08095 ,  H01S3/10076

Abstract: A high extraction efficiency laser system. The novel laser system includes a laser amplifier and a laser source adapted to provide a laser beam to the amplifier such that polarization states for incident and reflected light within the amplifier are perpendicular one to another. In an illustrative embodiment, the laser beam is input to the amplifier such that the beam reflects back and forth between the side walls of the amplifier with an angle of incidence of about 45 degrees, and the laser beam is linearly polarized in the plane of incidence. This arrangement reduces interference fringes in the amplifier. In an alternative embodiment, the system includes an aberrator adapted to add time-varying aberrations in the laser beam at a rate exceeding an inversed lifetime of an inverted population in the amplifier to increase spatial homogenization of saturation and extraction patterns in the amplifier.

公开(公告)号：EP1949509A2

公开(公告)日：2008-07-30

申请号：EP06813241.4

申请日：2006-07-27

Applicant: RAYTHEON COMPANY

Inventor： BETIN, Alexander A. ,  SHKUNOV, Vladimir

IPC: H01S3/00 ,  H01S3/23 ,  H01S3/10

CPC classification number: H01S3/2333 ,  H01S3/005 ,  H01S3/0085 ,  H01S3/08095 ,  H01S3/10076

Abstract: A high extraction efficiency laser system. The novel laser system includes a laser amplifier and a laser source adapted to provide a laser beam to the amplifier such that polarization states for incident and reflected light within the amplifier are perpendicular one to another. In an illustrative embodiment, the laser beam is input to the amplifier such that the beam reflects back and forth between the side walls of the amplifier with an angle of incidence of about 45 degrees, and the laser beam is linearly polarized in the plane of incidence. This arrangement reduces interference fringes in the amplifier. In an alternative embodiment, the system includes an aberrator adapted to add time-varying aberrations in the laser beam at a rate exceeding an inversed lifetime of an inverted population in the amplifier to increase spatial homogenization of saturation and extraction patterns in the amplifier.

Abstract translation: 高提取效率激光系统。 新颖的激光系统包括激光放大器和适于向放大器提供激光束的激光源，使得放大器内的入射和反射光的偏振状态彼此垂直。 在说明性实施例中，激光束被输入到放大器，使得光束在放大器的侧壁之间来回以大约45度的入射角反射，并且激光束在入射平面中线性偏振 。 这种布置减少了放大器中的干扰条纹。 在替代实施例中，系统包括像差器，其适于以超过放大器中的反相群体的反相寿命的速率在激光束中增加时变像差，以增加放大器中的饱和度和提取模式的空间均匀化。

公开(公告)号：EP1779480A1

公开(公告)日：2007-05-02

申请号：EP05809996.1

申请日：2005-08-03

Applicant: Raytheon Company

Inventor： BETIN, Alexander A. ,  SPARIOSU, Kalin

IPC: H01S3/14 ,  H01S3/06 ,  H01S3/20 ,  H01S3/16 ,  H01S3/17 ,  H01S3/02 ,  H01S3/042

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

Abstract: A solid-state suspension laser (10). The novel laser (10) includes a gain medium (12) comprised of a plurality of solid-state gain particles (26) suspended in a fluid (28). The laser (10) also includes a pump source (20) for pumping the gain particles (26) and a resonator (14) for amplifying and outputting laser light generated by the gain medium (12). In an illustrative embodiment, the gain medium (12) is adapted to flow, and the pumping of the gain medium (12) occurs outside of the resonator (14). The flow velocities and the densities of the gain particles (26) in the gain medium (12) can be optimized for optimal absorption efficiency during the pumping and/or for optimal extraction efficiency in the resonator (14) as well as for overall laser performance optimization, including power, efficiency and beam quality scalability.