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公开(公告)号：US07800819B2
公开(公告)日：2010-09-21
申请号：US12148356
申请日：2008-04-18
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 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.
摘要翻译： 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，使得光束以大约45度的入射角在放大器的侧壁之间来回反射，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。
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公开(公告)号：US07391558B2
公开(公告)日：2008-06-24
申请号：US11253994
申请日：2005-10-19
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。
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公开(公告)号：US08284480B2
公开(公告)日：2012-10-09
申请号：US12860615
申请日：2010-08-20
IPC分类号： H01S3/06
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 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.
摘要翻译： 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，使得光束以大约45度的入射角在放大器的侧壁之间来回反射，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。
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公开(公告)号：US08284490B2
公开(公告)日：2012-10-09
申请号：US12874919
申请日：2010-09-02
CPC分类号： G02B1/007 , F42B10/46 , G02B27/0025
摘要： An optical window may be configured to minimize optical aberrations. The optical window may include a laminous optical window assembly. The laminous optical window assembly may have four or more alternating layers of positive refraction material layers and negative refraction material layers. The four or more alternating layers may be configured to minimize refraction of electromagnetic rays propagating therethrough such that a given incident electromagnetic ray is substantially collinear with a corresponding transmitted electromagnetic ray.
摘要翻译： 可以将光学窗口配置为最小化光学像差。 光学窗口可以包括层叠光学窗口组件。 叠层光学窗组件可以具有四个或更多个正折射材料层和负折射材料层的交替层。 四个或更多个交替层可以被配置为最小化在其中传播的电磁射线的折射，使得给定的入射电磁射线基本上与相应的透射电磁射线共线。
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25.发明授权公开(公告)号：US07860360B2
公开(公告)日：2010-12-28
申请号：US12358901
申请日：2009-01-23
IPC分类号： G02B6/26
CPC分类号： G02B6/32 , G02B6/1245 , H01S3/042 , H01S3/06704 , H01S3/06729 , H01S3/06745 , H01S3/06758
摘要： A coupler and method of coupling a signal beam between from a circular-core fiber to a rectangular-core cross section fiber includes providing an optical coupler having an optical core with a high-aspect ratio cross section at one end and a circular cross section at an opposite end to receive a signal beam having a circular cross section. The signal beam is propagated from the circular fiber to the rectangular-core cross section fiber in a narrow, fast-axis direction while maintaining the size and divergence of the signal beam as it propagates. The signal beam is expanded in size while producing a collimated beam from the circular cross section end to the rectangular-core cross section end in a wide, slow-axis direction.
摘要翻译： 耦合器和将信号光束从圆芯光纤耦合到矩形芯截面光纤的耦合器和方法包括提供光耦合器，该光耦合器具有在一端具有高纵横比横截面的光学芯和圆形横截面 相对端接收具有圆形横截面的信号束。 信号光束在狭窄的快轴方向上从圆形光纤传播到矩形芯截面光纤，同时保持信号光束在传播时的尺寸和发散度。 信号光束在尺寸上扩大，同时在宽的慢轴方向从圆形截面端到矩形芯截面端产生准直光束。
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26.发明申请公开(公告)号：US20100189392A1
公开(公告)日：2010-07-29
申请号：US12358901
申请日：2009-01-23
IPC分类号： G02B6/26
CPC分类号： G02B6/32 , G02B6/1245 , H01S3/042 , H01S3/06704 , H01S3/06729 , H01S3/06745 , H01S3/06758
摘要： A coupler and method of coupling a signal beam between from a circular-core fiber to a rectangular-core cross section fiber includes providing an optical coupler having an optical core with a high-aspect ratio cross section at one end and a circular cross section at an opposite end to receive a signal beam having a circular cross section. The signal beam is propagated from the circular fiber to the rectangular-core cross section fiber in a narrow, fast-axis direction while maintaining the size and divergence of the signal beam as it propagates. The signal beam is expanded in size while producing a collimated beam from the circular cross section end to the rectangular-core cross section end in a wide, slow-axis direction.
摘要翻译： 耦合器和将信号光束从圆芯光纤耦合到矩形芯截面光纤的耦合器和方法包括提供光耦合器，该光耦合器具有在一端具有高纵横比横截面的光学芯和圆形横截面 相对端接收具有圆形横截面的信号束。 信号光束在狭窄的快轴方向上从圆形光纤传播到矩形芯截面光纤，同时保持信号光束在传播时的尺寸和发散度。 信号光束在尺寸上扩大，同时在宽的慢轴方向从圆形截面端到矩形芯截面端产生准直光束。
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