公开(公告)号：US20050069009A1

公开(公告)日：2005-03-31

申请号：US10500037

申请日：2002-12-18

申请人： Ralf Knappe ,  Achim Nebel

发明人： Ralf Knappe ,  Achim Nebel

IPC分类号： H01S3/0941 ,  H01S3/091

CPC分类号： H01S3/09415

摘要： A device for the optical excitation of laser-active crystals with a diode laser (1) is disclosed. The diode laser (1) generates pump radiation (2), and the laser-active crystal (14) is arranged in a solid-state laser or solid-state laser amplifier. The laser-active crystal (14) has an axis (C) with strong absorption and an axis (A) with weak absorption. The pump radiation (2) from the diode laser (1) is substantially polarised linearly in a privileged polarisation direction. The device is configured in such a way that the pump radiation (2) is injected into the laser-active crystal (14) with a polarisation direction which is oriented parallel to the weak-absorption axis (A). The polarisation of the pump radiation in the vicinity of the laser-active crystal is oriented parallel relative to the weak-absorption axis.

摘要翻译： 公开了一种用二极管激光器（1）激光激光晶体激光器件。 二极管激光器（1）产生泵浦辐射（2），并且激光有源晶体（14）被布置在固态激光器或固态激光放大器中。 激光活性晶体（14）具有强吸收的轴线（C）和弱吸收的轴线（A）。 来自二极管激光器（1）的泵浦辐射（2）在特权偏振方向上基本上线性偏振。 该装置被配置为使得泵浦辐射（2）以与弱吸收轴线（A）平行的方向被注入到激光器活性晶体（14）中。 激光有源晶体附近的泵浦辐射的极化相对于弱吸收轴线取向平行。

公开(公告)号：US20040101001A1

公开(公告)日：2004-05-27

申请号：US10698464

申请日：2003-11-03

申请人： Dr. Thorald Bergmann ,  Dr. Ralf Knappe

发明人： Thorald Horst Bergmann ,  Ralf Knappe

IPC分类号： H01S003/10

CPC分类号： G02F1/0327

摘要： The driver i.e. the electrical control of the Pockels cell is modified from the standardly known H- configuration using the switches S1, S2A; S1A, S2A by adding at least one more switch (S2B; S1B, S2B). This switch can either replace the usually used recharging resistors (R2) or can be placed to these in parallel. It is also possible to use an arrangement using 4 switches (S1A, S2A, S1B, S2B) and no recharging resistors at all. Using such a driver with a Pockels cell pulses can be selected in laser systems more efficiently. Pulse sequences with well defined widths and spacing can be produced for certain applications.

摘要翻译： 使用开关S1，S2A从标准公知的H构造修改驱动器，即Pockels单元的电气控制; S1A，S2A，通过添加至少一个以上的开关（S2B; S1B，S2B）。 该开关可以替代通常使用的充电电阻（R2），也可以并联放置。 也可以使用4个开关（S1A，S2A，S1B，S2B）并且根本不使用再充电电阻。 可以更有效地在激光系统中选择使用具有Pockels单元脉冲的这种驱动器。 对于某些应用，可以产生具有良好定义的宽度和间距的脉冲序列。

公开(公告)号：US07203211B2

公开(公告)日：2007-04-10

申请号：US10500037

申请日：2002-12-18

申请人： Ralf Knappe ,  Achim Nebel

发明人： Ralf Knappe ,  Achim Nebel

IPC分类号： H01S3/10 ,  H01S5/00

CPC分类号： H01S3/09415

摘要： A device for the optical excitation of laser-active crystals with a diode laser (1) is disclosed. The diode laser (1) generates pump radiation (2), and the laser-active crystal (14) is arranged in a solid-state laser or solid-state laser amplifier. The laser-active crystal (14) has an axis (C) with strong absorption and an axis (A) with weak absorption. The pump radiation (2) from the diode laser (1) is substantially polarised linearly in a privileged polarisation direction. The device is configured in such a way that the pump radiation (2) is injected into the laser-active crystal (14) with a polarisation direction which is oriented parallel to the weak-absorption axis (A). The polarisation of the pump radiation in the vicinity of the laser-active crystal is oriented parallel relative to the weak-absorption axis.

摘要翻译： 公开了一种用二极管激光器（1）激光激光晶体激光器件。 二极管激光器（1）产生泵浦辐射（2），并且激光有源晶体（14）被布置在固态激光器或固态激光放大器中。 激光活性晶体（14）具有强吸收的轴线（C）和弱吸收的轴线（A）。 来自二极管激光器（1）的泵浦辐射（2）在特权偏振方向上基本上线性偏振。 该装置被配置为使得泵浦辐射（2）以与弱吸收轴线（A）平行的方向被注入到激光器活性晶体（14）中。 激光有源晶体附近的泵浦辐射的极化相对于弱吸收轴线取向平行。

公开(公告)号：US08542713B2

公开(公告)日：2013-09-24

申请号：US10857642

申请日：2004-05-28

申请人： Achim Nebel ,  Ralf Knappe ,  Louis McDonagh

发明人： Achim Nebel ,  Ralf Knappe ,  Louis McDonagh

IPC分类号： H01S3/094

CPC分类号： H01S3/09415 ,  H01S3/1611 ,  H01S3/1673

摘要： An optically pumped laser oscillator or amplifier including a laser head including a gain medium exhibiting polarization-dependent absorption along two crystallographic axes and a pump source producing a pump beam. The medium's absorption coefficients along both of the crystallographic axes are equal or the difference between the absorption coefficients relative to the lowest absorption coefficients is reduced at least by a factor of two compared to the same relative difference between the two absorption coefficients at the medium's absorption peaks. In some embodiments, the gain medium is a crystal, e.g., a Neodymium-doped Vanadate (Nd:YVO4) crystal, greater than 15 mm. In various embodiments, the optically pumped laser oscillator or amplifier includes two pump sources producing two pump beams.

摘要翻译： 一种光泵浦激光振荡器或放大器，其包括激光头，该激光头包括具有沿着两个晶轴的偏振相关吸收的增益介质和产生泵浦光束的泵浦光源。 相对于两个结晶轴的介质吸收系数相等或相对于最低吸收系数的吸收系数之间的差异至少降低了与介质吸收峰两个吸收系数之间相同的相对差异的两倍 。 在一些实施例中，增益介质是大于15mm的晶体，例如钕掺杂的钒酸镧（Nd：YVO4）晶体。 在各种实施例中，光泵浦激光振荡器或放大器包括产生两个泵浦光束的两个泵浦源。

公开(公告)号：US07260121B2

公开(公告)日：2007-08-21

申请号：US10698464

申请日：2003-11-03

申请人： Thorald Horst Bergmann ,  Ralf Knappe

发明人： Thorald Horst Bergmann ,  Ralf Knappe

IPC分类号： H01S3/115

CPC分类号： G02F1/0327

摘要： Driver for Pockels cells and using this Pockels cell within laser systemsThe driver i.e. the electrical control of the Pockels cell is modified from the standardly known H-configuration using the switches S1, S2A; S1A, S2 A by adding at least one more switch (S2B; S1B; S2B). This switch can either replace the usually used recharging resistors (R2) or can be placed to these in parallel. It is also possible to use an arrangement using 4 switches (S1A, S2A, S1B, S2B) and no recharging resistors at all. Using such a driver with a Pockels cell pulses can be selected in laser systems more efficiently. Pulse sequences with well defined widths and spacing can be produced for certain application.

摘要翻译： 驱动器用于Pockels单元并且在激光系统内使用该Pockels单元使用开关S1，S2A从标准已知的H构造修改驱动器，即Pockels单元的电气控制; 通过添加至少一个以上的开关（S 2 B; S 1 B; S 2 B）来进行S1A，S2A。 该开关可以替代通常使用的充电电阻（R 2），也可以并联放置到这些。 也可以使用4个开关（S 1 A，S 2 A，S 1 B，S 2 B）和根本没有充电电阻的布置。 可以更有效地在激光系统中选择使用具有Pockels单元脉冲的这种驱动器。 可以为某些应用产生具有良好定义的宽度和间距的脉冲序列。