公开(公告)号：US06760356B2

公开(公告)日：2004-07-06

申请号：US10118292

申请日：2002-04-08

申请人： Gaylen V. Erbert ,  Subrat Biswal ,  Joseph M. Bartolick ,  Brent C. Stuart ,  John K. Crane ,  Steve Telford ,  Michael D. Perry

发明人： Gaylen V. Erbert ,  Subrat Biswal ,  Joseph M. Bartolick ,  Brent C. Stuart ,  John K. Crane ,  Steve Telford ,  Michael D. Perry

IPC分类号： H01S3081

CPC分类号： H01S3/0057 ,  H01S3/1643

摘要： A diode pumped, high power (at least 20W), short pulse (up to 2 ps), chirped pulse amplified laser using Yb:YAG as the gain material is employed for material processing. Yb:YAG is used as the gain medium for both a regenerative amplifier and a high power 4-pass amplifier. A single common reflective grating optical device is used to both stretch pulses for amplification purposes and to recompress amplified pulses before being directed to a workpiece.

摘要翻译： 使用Yb：YAG作为增益材料的二极管泵浦，高功率（至少20W），短脉冲（高达2ps），啁啾脉冲放大激光器用于材料处理。 Yb：YAG用作再生放大器和高功率4通放大器的增益介质。 单个公共反射光栅光学装置用于拉伸脉冲以用于放大目的，并且在被引导到工件之前重新压缩放大的脉冲。

公开(公告)号：US06739728B2

公开(公告)日：2004-05-25

申请号：US10117744

申请日：2002-04-08

申请人： Gaylen V. Erbert ,  Subrat Biswal ,  Joseph M. Bartolick ,  Brent C. Stuart ,  Steve Telford

发明人： Gaylen V. Erbert ,  Subrat Biswal ,  Joseph M. Bartolick ,  Brent C. Stuart ,  Steve Telford

IPC分类号： G02B2744

CPC分类号： G02B27/4233 ,  G02B17/004 ,  H01S3/0057 ,  Y10S359/90

摘要： The present invention provides an easily aligned, all-reflective, aberration-free pulse stretcher-compressor in a compact geometry. The stretcher-compressor device is a reflective multi-layer dielectric that can be utilized for high power chirped-pulse amplification material processing applications. A reflective grating element of the device is constructed: 1) to receive a beam for stretching of laser pulses in a beam stretcher beam path and 2) to also receive stretched amplified pulses to be compressed in a compressor beam path through the same (i.e., common) reflective multilayer dielectric diffraction grating. The stretched and compressed pulses are interleaved about the grating element to provide the desired number of passes in each respective beam path in order to achieve the desired results.

摘要翻译： 本发明提供了一种紧凑型几何形状中容易对准，全反射，无像差的脉冲拉伸 - 压缩机。 担架压缩机装置是可用于高功率啁啾脉冲放大材料处理应用的反射多层电介质。 该装置的反射光栅元件被构造为：1）接收用于在束拉伸束路径中拉伸激光脉冲的光束，以及2）还可以在压缩机的光束路径中接收被压缩的经延伸的放大脉冲（即， 常见）反射多层介质衍射光栅。 拉伸和压缩的脉冲围绕光栅元件交错，以在每个相应光束路径中提供期望数量的通过，以便获得期望的结果。

公开(公告)号：US5247527A

公开(公告)日：1993-09-21

申请号：US867640

申请日：1992-04-13

申请人： Gaylen V. Erbert ,  Isaac L. Bass ,  Richard P. Hackel ,  Sherman L. Jenkins ,  Vernon K. Kanz ,  Jeffrey A. Paisner

发明人： Gaylen V. Erbert ,  Isaac L. Bass ,  Richard P. Hackel ,  Sherman L. Jenkins ,  Vernon K. Kanz ,  Jeffrey A. Paisner

IPC分类号： H01S3/081 ,  H01S3/094 ,  H01S3/0943 ,  H01S3/098 ,  H01S3/16

CPC分类号： H01S3/081 ,  H01S3/094 ,  H01S3/08036 ,  H01S3/0943 ,  H01S3/1625

摘要： A high-power continuous-wave laser resonator (10) is provided, wherein first, second, third, fourth, fifth and sixth mirrors (11-16) form a double-Z optical cavity. A first Ti:Sapphire rod (17) is disposed between the second and third mirrors (12,13) and at the mid-point of the length of the optical cavity, and a second Ti:Sapphire rod (18) is disposed between the fourth and fifth mirrors (14,15) at a quarter-length point in the optical cavity. Each Ti:Sapphire rod (17,18) is pumped by two counter-propagating pump beams from a pair of argon-ion lasers (21-22, 23-24). For narrow band operation, a 3-plate birefringent filter (36) and an etalon (37) are disposed in the optical cavity so that the spectral output of the laser consists of 5 adjacent cavity modes. For increased power, seventy and eighth mirrors (101, 192) are disposed between the first and second mirrors (11, 12) to form a triple-Z optical cavity. A third Ti:Sapphire rod (103) is disposed between the seventh and eighth mirrors (101, 102) at the other quarter-length point in the optical cavity, and is pumped by two counter-propagating pump beams from a third pair of argon-ion lasers (104, 105).

摘要翻译： 提供了一种大功率连续波激光谐振器（10），其中第一，第二，第三，第四，第五和第六反射镜（11-16）形成双Z光腔。 第一Ti：蓝宝石棒（17）设置在第二和第三反射镜（12,13）之间并且在光学腔的长度的中点处，并且第二Ti：蓝宝石棒（18）设置在 第四和第五镜（14,15）在光腔中的四分之一长度点处。 每个Ti：蓝宝石棒（17,18）由两对反向传播的泵浦光束从一对氩离子激光器（21-22,23-24）泵浦。 对于窄带操作，在光腔中设置3板双折射滤光器（36）和标准具（37），使得激光的光谱输出由5个相邻的腔模组成。 为了增加功率，第七和第八反射镜（101,192）设置在第一和第二反射镜（11,12）之间以形成三-Z光腔。 第三Ti：蓝宝石棒（103）被设置在光腔中另一个四分之一长度的第七和第八反射镜（101,102）之间，并且被来自第三对氩的两个反向传播的泵浦光束泵送 激光器（104,105）。

公开(公告)号：US5132979A

公开(公告)日：1992-07-21

申请号：US745793

申请日：1991-08-16

申请人： Gaylen V. Erbert

发明人： Gaylen V. Erbert

IPC分类号： H01S3/105

CPC分类号： H01S3/105

摘要： The present invention relates to a laser frequency modulator for modulating a laser cavity. It is known in the prior art to utilize a PZT (piezoelectric transducer) element in combination with a mirror to change the cavity length of a laser cavity (which changes the laser frequency). Using a PZT element to drive the mirror directly is adequate at frequencies below 10 kHz. However, in high frequency applications (100 kHz and higher) PZT elements alone do not provide a sufficient change in the cavity length.The present invention utilizes an ultrasonic concentrator with a PZT element and mirror to provide modulation of the laser cavity. With an ultrasonic concentrator, the mirror element at the end of a laser cavity can move at larger amplitudes and higher frequencies.

摘要翻译： 本发明涉及一种用于调制激光腔的激光频率调制器。 在现有技术中已知利用PZT（压电换能器）元件与反射镜组合以改变激光腔的空腔长度（其改变激光频率）。 使用PZT元件直接驱动镜像在低于10 kHz的频率下是足够的。 然而，在高频应用（100kHz及更高​​）中，单独的PZT元件不能提供腔长度的充分变化。 本发明利用具有PZT元件和反射镜的超声波聚光器来提供激光腔的调制。 使用超声波聚光器，激光腔末端的镜子元件可以在较大的幅度和较高的频率下移动。