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1. 发明申请

US20060187535A1 Outcoupler with bragg grating and system and method using same 有权
标题翻译：具有布拉格光栅的外耦合器和使用其的系统和方法
公开(公告)号：US20060187535A1
公开(公告)日：2006-08-24
申请号：US11405199
申请日：2006-04-17
申请人： Alexander Betin , Oleg Efimov
发明人： Alexander Betin , Oleg Efimov
IPC分类号： H01S3/00
CPC分类号： H01S3/235 , H01S3/08009 , H01S3/083 , H01S3/10076 , H01S3/2316 , H01S5/50
摘要： An outcoupler having a wavelength selective, angle sensitive element or Bragg grating and an arrangement for maintaining the element in a predetermined orientation relative to an incident beam of electromagnetic energy. The Bragg grating may be reflective or transmissive. The inventive outcoupler may be used to implement a phase conjugate master oscillator power amplifier with an oscillator; a resonator in operational alignment with the oscillator; and an outcoupler in alignment with the oscillator. In the best mode, second and third Bragg gratings are included within the oscillator and the resonator, respectively.
摘要翻译：具有波长选择性，角度敏感元件或布拉格光栅的输出耦合器和用于将元件相对于电磁能的入射光束保持在预定取向的布置。布拉格光栅可以是反射的或透射的。本发明的输出耦合器可用于实现具有振荡器的相位共轭主振荡器功率放大器; 与振荡器工作对准的谐振器; 以及与振荡器对准的输出耦合器。在最佳模式下，第二和第三布拉格光栅分别包括在振荡器和谐振器内。

2. 发明申请

US20050157397A1 Wide-angle polarization-independent narrow-band spectral filter and method 审中-公开
标题翻译：广角偏振无关窄带光谱滤波器及方法
公开(公告)号：US20050157397A1
公开(公告)日：2005-07-21
申请号：US10761720
申请日：2004-01-20
申请人： Oleg Efimov , Alexander Betin
发明人： Oleg Efimov , Alexander Betin
IPC分类号： G02B5/20 , G02B6/34 , G02B27/28 , H04J14/02 , H04J14/06 , G02B27/14
CPC分类号： G02B6/29362 , G02B27/283 , G02B27/288 , H04J14/02 , H04J14/06
摘要： An optical arrangement (10) comprising a first beam splitter (12) for transmitting light of a first polarization, to provide a first beam, and reflect light of a second polarization; a first spectral filter (16) in optical alignment with the first beam, the filter (16) being adapted to return a second beam thereto; and a first polarization rotator (14) in optical alignment with the beam splitter (12) and the spectral filter (16) for effecting a rotation of the polarization of the second beam relative to the first beam whereby the second beam has the second polarization and is reflected by the beam splitter (12). In a specific implementation, the spectral filter (12) may be a Bragg grating, a quarter-wave plate (22), a Faraday rotator (32) or other suitable device. If a Faraday rotator is used, a polarization adjuster (34) is used in optical alignment therewith. A number of alternative embodiments are disclosed. In a first alternative embodiment, a second polarization rotator (44) is disposed in optical alignment with the first beam splitter (12) for effecting a rotation of the polarization of the light reflected from the beam splitter (12) to provide a third beam. In one variant a second spectral filter (48) is disposed in alignment with the second polarization rotator (44). In another variant, the first spectral filter (52) is adapted to receive the third beam. In another embodiment, a second beam splitter (68) is disposed between the second Faraday rotator (64) and the spectral filter (16).
摘要翻译：一种光学装置（10），包括用于透射第一偏振光的第一分束器（12），以提供第一光束并反射第二偏振光; 与所述第一光束对准的第一光谱滤光器（16），所述滤光片（16）适于将第二光束返回到其上; 以及与分束器（12）和光谱滤光器（16）光学对准的第一偏振旋转器（14），用于相对于第一光束实现第二光束的偏振的旋转，由此第二光束具有第二偏振，被分束器（12）反射。在具体实现中，光谱滤波器（12）可以是布拉格光栅，四分之一波片（22），法拉第旋转器（32）或其它合适的装置。如果使用法拉第旋转器，则偏振调节器（34）用于与其对准。公开了许多替代实施例。在第一替代实施例中，第二偏振旋转器（44）被设置为与第一分束器（12）光学对准，以实现从分束器（12）反射的光的偏振的旋转以提供第三光束。在一个变型中，与第二偏振旋转器（44）对准设置第二光谱滤光器（48）。在另一个变型中，第一光谱滤波器（52）适于接收第三光束。在另一个实施例中，第二分束器（68）设置在第二法拉第旋转器（64）和光谱滤光器（16）之间。

3. 发明申请

US20050280887A1 Outcoupler with bragg grating and system and method using same 审中-公开
标题翻译：具有布拉格光栅的外耦合器和使用其的系统和方法
公开(公告)号：US20050280887A1
公开(公告)日：2005-12-22
申请号：US10860468
申请日：2004-06-02
申请人： Alexander Betin , Oleg Efimov
发明人： Alexander Betin , Oleg Efimov
IPC分类号： H01S3/00 , H01S3/08 , H01S3/083 , H01S3/10 , H01S3/23 , H01S5/50
CPC分类号： H01S3/235 , H01S3/08009 , H01S3/083 , H01S3/10076 , H01S3/2316 , H01S5/50
摘要： An outcoupler having a wavelength selective, angle sensitive element or Bragg grating and an arrangement for maintaining the element in a predetermined orientation relative to an incident beam of electromagnetic energy. The Bragg grating may be reflective or transmissive. The inventive outcoupler may be used to implement a phase conjugate master oscillator power amplifier with an oscillator; a resonator in operational alignment with the oscillator; and an outcoupler in alignment with the oscillator. In the best mode, second and third Bragg gratings are included within the oscillator and the resonator, respectively.
摘要翻译：具有波长选择性，角度敏感元件或布拉格光栅的输出耦合器和用于将元件相对于电磁能的入射光束保持在预定取向的布置。布拉格光栅可以是反射的或透射的。本发明的输出耦合器可用于实现具有振荡器的相位共轭主振荡器功率放大器; 与振荡器工作对准的谐振器; 以及与振荡器对准的输出耦合器。在最佳模式下，第二和第三布拉格光栅分别包括在振荡器和谐振器内。

4. 发明申请

US20050207009A1 NONRECIPROCAL OPTICAL ELEMENT WITH INDEPENDENT CONTROL OF TRANSMISSION OPPOSITE DIRECTIONS 有权
标题翻译：具有独立控制传输方向的非光学光学元件
公开(公告)号：US20050207009A1
公开(公告)日：2005-09-22
申请号：US10806717
申请日：2004-03-22
申请人： Oleg Efimov , Alexander Betin
发明人： Oleg Efimov , Alexander Betin
IPC分类号： G02B6/26 , G02F1/09 , G02F1/095 , H04B10/18 , G02B27/28
CPC分类号： G02F1/093 , G02B6/2746 , Y10S359/90
摘要： A nonreciprocal optical element and method for operating it to effect separate control of intensity and phase (or optical path length) of counter propagating beams over a very wide range. The nonreciprocal optical element includes a circulator for routing a first signal from a first port to a second port and a second signal from the second port to a third port, a third signal from the third port to a fourth port and a fourth signal from the fourth port to the first port; a first mirror for reflecting a signal output by the second port back into the second port; and second mirror for reflecting a signal output by the fourth port back into the fourth port. Polarization rotation elements such as quarter-wave plates are disposed between the mirrors and the second and fourth ports to preserve the polarization of the input beams. Filters are disposed between these ports and mirrors to adjust the transmittance of the input and output signals. An arrangement is included for translating the positions of the mirrors relative to the ports to adjust the phase of the output signals. Independent spectral control is effected by providing a Bragg grating, interference filter or other spectral filter between the second or fourth ports and the mirror associated therewith.
摘要翻译：一种不可逆光学元件和方法，用于对非常宽的范围内的反向传播光束的强度和相位（或光程长度）进行单独的控制。不可逆光学元件包括用于将第一信号从第一端口路由到第二端口的循环器和从第二端口到第三端口的第二信号，从第三端口到第四端口的第三信号和来自第二端口的第四信号第一口港口; 用于将由第二端口输出的信号反射回第二端口的第一反射镜; 以及用于将由第四端口输出的信号反射回第四端口的第二反射镜。诸如四分之一波片的偏振旋转元件设置在反射镜和第二和第四端口之间以保持输入光束的偏振。过滤器设置在这些端口和反射镜之间，以调节输入和输出信号的透射率。包括用于平移反射镜相对于端口的位置以调整输出信号的相位的布置。独立的光谱控制通过在第二或第四端口和与之相关联的反射镜之间提供布拉格光栅，干涉滤光片或其他光谱滤光片来实现。

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. 发明申请

US20070086492A1 Laser amplifier power extraction enhancement system and method 有权
标题翻译：激光放大器功率提取增强系统及方法
公开(公告)号：US20070086492A1
公开(公告)日：2007-04-19
申请号：US11253994
申请日：2005-10-19
申请人： Alexander Betin , Vladimir Shkunov
发明人： Alexander Betin , Vladimir Shkunov
IPC分类号： H01S3/10
CPC分类号： H01S3/2333 , H01S3/005 , H01S3/0085 , H01S3/08095 , H01S3/10076
摘要： A high extraction efficiency laser system. The novel laser system includes a master oscillator for providing a laser beam, an amplifier adapted to amplify the laser beam, and an aberrator for aberrating the laser beam to prevent the formation of caustic intensity patterns within the amplifier. In an illustrative embodiment, the laser system also includes a depolarizer disposed between the master oscillator and the amplifier to reduce the contrast of speckle intensity patterns in the amplifier, and a mechanism adapted to rotate or otherwise move the aberrator to time-vary the aberrations in the beam in order to increase the spatial homogenization of saturation and extraction patterns in the amplifier. In a preferred embodiment, the coherence length of the beam is also shortened to reduce interference fringes in the amplifier.
摘要翻译：高提取效率激光系统。该新型激光系统包括用于提供激光束的主振荡器，适于放大激光束的放大器和用于使激光束异像的像差仪，以防止在放大器内形成苛性强度图案。在说明性实施例中，激光系统还包括设置在主振荡器和放大器之间的消偏振器，以减小放大器中散斑强度图案的对比度，以及适于旋转或以其它方式移动像差仪以对时间变化像差的机构以增加放大器饱和度和抽取模式的空间均匀度。在优选实施例中，光束的相干长度也被缩短以减小放大器中的干涉条纹。

7. 发明申请

US20050169323A1 Scalable laser with robust phase locking 有权
标题翻译：具有坚固相位锁定功能的可扩展激光器
公开(公告)号：US20050169323A1
公开(公告)日：2005-08-04
申请号：US10771047
申请日：2004-02-02
申请人： Kalin Spariosu , Alexander Betin
发明人： Kalin Spariosu , Alexander Betin
IPC分类号： H01S3/067 , H01S3/23 , H01S3/10
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。

8. 发明申请

US20070217475A1 Solid-state suspension laser 失效
标题翻译：固态悬浮激光
公开(公告)号：US20070217475A1
公开(公告)日：2007-09-20
申请号：US11804804
申请日：2007-05-21
申请人： Alexander Betin , Kalin Spariosu
发明人： Alexander Betin , Kalin Spariosu
IPC分类号： 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。

9. 发明申请

US20060039425A1 Solid-state suspension laser 审中-公开
标题翻译：固态悬浮激光
公开(公告)号：US20060039425A1
公开(公告)日：2006-02-23
申请号：US10915229
申请日：2004-08-10
申请人： Alexander Betin , Kalin Spariosu
发明人： Alexander Betin , Kalin Spariosu
IPC分类号： H01S3/14
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。

10. 发明申请

US20050063446A1 Phase conjugate laser and method with improved fidelity 有权
标题翻译：相位共轭激光器和提高保真度的方法
公开(公告)号：US20050063446A1
公开(公告)日：2005-03-24
申请号：US10666176
申请日：2003-09-19
申请人： Alexander Betin , Robin Reeder , Robert Byren
发明人： Alexander Betin , Robin Reeder , Robert Byren
IPC分类号： H01S3/00 , H01S3/08 , H01S3/10 , H01S3/23
CPC分类号： H01S3/2333 , H01S3/005 , H01S3/10023 , H01S3/10076 , H01S3/2316
摘要： A spatial filter adapted to increase the angular spread of non-conjugated energy in a beam and suppress this energy to improve the efficiency of a phase conjugate system. In the illustrative embodiment, the filter includes first and second lenses and an aberrator to increase the angular spread. In the specific embodiment, an opaque plate, with a pinhole aperture therethrough, is sandwiched between the lenses to suppress the non-conjugated energy. The aberrator may be implemented with an amplifier or other suitable mechanism. Likewise, the aperture may be replaced with a highly angle-selective thick Bragg grating or other suitable arrangement. A phase conjugate master oscillator/power amplifier laser architecture is also disclosed. In an illustrative embodiment, the novel architecture includes a master oscillator adapted to output a laser beam; a power amplifier beam line in optical alignment with the beam; a mechanism for creating a beam having phase conjugate energy and non-conjugated energy; and at least one inventive spatial filter in alignment with the amplifier. The inventive filter is adapted to increase the angular spread of non-conjugated energy in a beam and suppress this energy to improve the efficiency of the system. In a specific implementation, the beamline includes plural amplifiers, each with one of the novel spatial filters disposed therebetween.
摘要翻译：一种空间滤波器，适于增加光束中非共轭能量的角度扩展，并抑制该能量以提高相位共轭系统的效率。在说明性实施例中，滤光器包括第一透镜和第二透镜以及增大角度扩展的像差器。在具体实施例中，具有针孔的透明板被夹在透镜之间以抑制非共轭能。像差仪可以用放大器或其他合适的机构实现。类似地，孔可以用高角度选择性的布拉格光栅或其他合适的布置代替。还公开了相位共轭主振荡器/功率放大器激光器架构。在说明性实施例中，新颖的架构包括适于输出激光束的主振荡器; 与光束对准的功率放大器光束线; 用于产生具有相位共轭能量和非共轭能量的光束的机构; 以及与放大器对准的至少一个本发明的空间滤波器。本发明的滤波器适于增加光束中非共轭能量的角度扩展，并且抑制该能量以提高系统的效率。在具体实现中，波束线包括多个放大器，每个具有设置在其间的新颖的空间滤波器之一。

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