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公开(公告)号：US07675958B2
公开(公告)日：2010-03-09
申请号：US11497824
申请日：2006-08-02
IPC分类号： H01S3/08
CPC分类号： H01S3/08059 , H01S3/061 , H01S3/07 , H01S3/08045 , H01S3/08072 , H01S3/0813 , H01S3/083 , H01S3/115 , H01S3/1618 , H01S3/1643 , H01S2301/20 , H01S2301/203
摘要： A lasing method including the steps of providing a laser resonator; utilizing birefringence compensation in said resonator whereby said resonator is induced to operate in a Laguerre-Gaussian higher order mode; and utilizing polarized outcoupling of lasing energy at said higher order mode from said resonator. In the illustrative application, the laser resonator is a high-power, solid-state laser resonator. In the specific embodiment, the inventive method further includes the step of changing an outcoupling preference for a non-degenerate high-order Laguerre-Gaussian mode. In one embodiment, the step of changing outcoupling preference includes the step of changing an outcoupling polarization. In another embodiment, the step of changing outcoupling preference includes the step of changing an orientation of a roof edge of a prism in the laser resonator. Lower order Laguerre modes are discouraged from appearing in an output of the resonator by adding loss at the center of the rod aperture of the resonator or detuning the orientation of a first or a second quarter-wave plate. In the illustrative embodiment, the gain lifetime of the resonator is longer than an interpulse period thereof.
摘要翻译： 一种激光方法，包括提供激光谐振器的步骤; 在所述谐振器中利用双折射补偿，由此所述谐振器被诱导以拉格尔 - 高斯高阶模式工作; 并且利用来自所述谐振器的所述高阶模式的激光能量的极化输出耦合。 在说明性应用中，激光谐振器是大功率固态激光谐振器。 在具体实施例中，本发明的方法还包括改变非退化高阶Laguerre-Gaussian模式的输出偏好的步骤。 在一个实施例中，改变输出耦合偏好的步骤包括改变输出耦合极化的步骤。 在另一个实施例中，改变输出耦合偏好的步骤包括改变激光谐振器中的棱镜的顶部边缘的方向的步骤。 不希望通过在谐振器的杆孔的中心处增加损耗或使第一或第二四分之一波片的取向失谐来降低低阶Laguerre模式出现在谐振器的输出中。 在说明性实施例中，谐振器的增益寿命长于其脉冲间隔。
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公开(公告)号：US20100020833A1
公开(公告)日：2010-01-28
申请号：US11497824
申请日：2006-08-02
CPC分类号： H01S3/08059 , H01S3/061 , H01S3/07 , H01S3/08045 , H01S3/08072 , H01S3/0813 , H01S3/083 , H01S3/115 , H01S3/1618 , H01S3/1643 , H01S2301/20 , H01S2301/203
摘要： A lasing method including the steps of providing a laser resonator; utilizing birefringence compensation in said resonator whereby said resonator is induced to operate in a Laguerre-Gaussian higher order mode; and utilizing polarized outcoupling of lasing energy at said higher order mode from said resonator. In the illustrative application, the laser resonator is a high-power, solid-state laser resonator. In the specific embodiment, the inventive method further includes the step of changing an outcoupling preference for a non-degenerate high-order Laguerre-Gaussian mode. In one embodiment, the step of changing outcoupling preference includes the step of changing an outcoupling polarization. In another embodiment, the step of changing outcoupling preference includes the step of changing an orientation of a roof edge of a prism in the laser resonator. Lower order Laguerre modes are discouraged from appearing in an output of the resonator by adding loss at the center of the rod aperture of the resonator or detuning the orientation of a first or a second quarter-wave plate. In the illustrative embodiment, the gain lifetime of the resonator is longer than an interpulse period thereof.
摘要翻译： 一种激光方法，包括提供激光谐振器的步骤; 在所述谐振器中利用双折射补偿，由此所述谐振器被诱导以拉格尔 - 高斯高阶模式工作; 并且利用来自所述谐振器的所述高阶模式的激光能量的极化输出耦合。 在说明性应用中，激光谐振器是大功率固态激光谐振器。 在具体实施例中，本发明的方法还包括改变非退化高阶Laguerre-Gaussian模式的输出偏好的步骤。 在一个实施例中，改变输出耦合偏好的步骤包括改变输出耦合极化的步骤。 在另一个实施例中，改变输出耦合偏好的步骤包括改变激光谐振器中的棱镜的顶部边缘的方向的步骤。 不希望通过在谐振器的杆孔的中心处增加损耗或使第一或第二四分之一波片的取向失谐来降低低阶Laguerre模式出现在谐振器的输出中。 在说明性实施例中，谐振器的增益寿命长于其脉冲间隔。
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