公开(公告)号：US4761786A

公开(公告)日：1988-08-02

申请号：US945609

申请日：1986-12-23

申请人： Thomas M. Baer

发明人： Thomas M. Baer

IPC分类号： H01S3/094 ,  H01S3/0941 ,  H01S3/11 ,  H01S3/117 ,  H01S3/16 ,  H01S3/092

CPC分类号： H01S3/025 ,  H01S3/09415 ,  H01S3/117

摘要： A miniaturized Q-switch is added to the resonant cavity of a compact laser diode pumped solid state laser to produce short high peak power pulses. Q-switching the compact diode pumped solid state lasers takes advantage of the relatively high gain and short cavity length to provide a desirable combination of pulsewidth and pulse energy. Nd:YAG or Nd:YLF are useful solid state laser materials for Q-switching, or other longer lifetime rare earth ions such as erbium or holmium for greater energy storage. The Q-switch is formed of a material such as TeO.sub.2, SF.sub.10, or LiNbO.sub.3 with an acoustooptic figure of merit substantially greater than fused silica. Pulsewidths of 10-50 ns are achieved at pulse energies of 10-20 microjoules. TEMOO output is easily produced by the compact laser pumped solid state resonator. Applications include materials processing, link blowing in semiconductor memories, marking and scribing, and optical time domain reflectometry.

公开(公告)号：US4723257A

公开(公告)日：1988-02-02

申请号：US48717

申请日：1987-05-12

申请人： Thomas M. Baer ,  Mark S. Keirstead

发明人： Thomas M. Baer ,  Mark S. Keirstead

IPC分类号： G02B6/42 ,  H01S3/02 ,  H01S3/0941 ,  H01S3/16 ,  H01S3/08

CPC分类号： H01S3/025 ,  G02B6/4204 ,  H01S3/09415 ,  H01S3/109 ,  G02B6/4226 ,  H01S3/061 ,  H01S3/086 ,  H01S3/094053

摘要： A compact laser head for a solid state laser has a miniaturized laser rod and output coupling mirror which form a miniaturized laser cavity. A miniaturized frequency doubler crystal placed in the cavity provides frequency doubled output. The laser head is connected by an optical fiber to a separate power supply which contains a laser diode pumping source. A quick disconnect connector enables the fiber optic to be easily connected to the laser head. Pumping radiation is transmitted through the optical fiber to longitudinally end pump the laser rod using fiber coupling imagery. The fiber is aligned with the rod by the connector and the pumping radiation is imaged into the rod by a focussing sphere. The pumping volume is matched to the lasing volume which is determined by the cavity geometry. The quick disconnect laser head allows interchange of different heads with different output characteristics while using a single power supply.

摘要翻译： 用于固态激光器的紧凑型激光头具有小型激光棒和输出耦合镜，其形成小型激光腔。 放置在腔内的小型倍频晶体提供倍频输出。 激光头通过光纤连接到包含激光二极管泵浦源的单独的电源。 快速断开连接器使光纤能够轻松连接到激光头。 泵浦辐射通过光纤传输到使用光纤耦合图像纵向泵浦激光棒。 纤维通过连接器与棒对准，并且泵送辐射通过聚焦球体成像到棒中。 泵浦体积与由腔体几何形状确定的激光体积匹配。 快速断开激光头允许在使用单个电源时交换具有不同输出特性的不同磁头。

公开(公告)号：US4653056A

公开(公告)日：1987-03-24

申请号：US730002

申请日：1985-05-01

申请人： Thomas M. Baer ,  Mark S. Keirstead

发明人： Thomas M. Baer ,  Mark S. Keirstead

IPC分类号： H01S3/02 ,  H01S3/08 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/109 ,  H01S3/16 ,  H01S3/10

CPC分类号： H01S3/109 ,  H01S3/08 ,  H01S3/0941

摘要： A neodymium YAG laser is pumped by a matched laser diode of high efficiency, resulting in a compact, high-efficiency and long-lifetime laser assembly. Output is in the near infrared range, but can be converted to the visible spectrum by an internal frequency doubler. A doubling crystal, which may be a KTP crystal, is placed at an optimum location in the laser cavity. Polarization of the beam may be achieved simply by stressing the YAG rod, prior to frequency doubling.

摘要翻译： 钕YAG激光器由高效率的匹配激光二极管泵浦，产生紧凑，高效率和长寿命的激光组件。 输出处于近红外范围，但可通过内部倍频器转换为可见光谱。 可以是KTP晶体的双晶体放置在激光腔中的最佳位置。 光束的极化可以在倍频之前简单地通过施加YAG棒来实现。