公开(公告)号：US20050226286A1

公开(公告)日：2005-10-13

申请号：US10813163

申请日：2004-03-31

申请人： Zhenlin Liu ,  Gyu Cho ,  Xinhua Gu ,  Otho Ulrich ,  Donald Harter

发明人： Zhenlin Liu ,  Gyu Cho ,  Xinhua Gu ,  Otho Ulrich ,  Donald Harter

IPC分类号： H01S3/00 ,  H01S3/02 ,  H01S3/067 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/098 ,  H01S3/10 ,  H01S3/102 ,  H01S3/13 ,  H01S3/16 ,  H01S3/23

CPC分类号： H01S3/0057 ,  H01S3/005 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/0085 ,  H01S3/02 ,  H01S3/025 ,  H01S3/06704 ,  H01S3/06712 ,  H01S3/06754 ,  H01S3/094011 ,  H01S3/0941 ,  H01S3/09415 ,  H01S3/10007 ,  H01S3/1028 ,  H01S3/1115 ,  H01S3/1301 ,  H01S3/1305 ,  H01S3/1618 ,  H01S3/2316 ,  H01S5/0612 ,  H01S5/06804

摘要： A modular ultrafast pulse laser system is constructed of individually pre-tested components manufactured as modules. The individual modules include an oscillator, pre-amplifier and power amplifier stages, a non-linear amplifier, and a stretcher and compressor. The individual modules can typically be connected by means of simple fiber splices.

摘要翻译： 模块化超快脉冲激光系统由单独的预先测试的部件构成，作为模块制造。 各个模块包括振荡器，前置放大器和功率放大器级，非线性放大器以及担架和压缩器。 各个模块通常可以通过简单的光纤接头连接。

公开(公告)号：US20050185260A1

公开(公告)日：2005-08-25

申请号：US10958593

申请日：2004-10-06

申请人： Almantas Galvanauskas ,  Donald Harter ,  Martin Fermann ,  Ferenc Raksi

发明人： Almantas Galvanauskas ,  Donald Harter ,  Martin Fermann ,  Ferenc Raksi

IPC分类号： B23K26/36 ,  B23K26/40 ,  G02F1/35 ,  G02F1/39 ,  H01S3/00 ,  H01S3/06 ,  H01S3/115

CPC分类号： G02F1/39 ,  B23K26/0622 ,  B23K26/0624 ,  G02F2001/3548 ,  G02F2001/392 ,  H01S3/0057 ,  H01S3/0604 ,  H01S3/06704 ,  H01S3/06725 ,  H01S3/06741 ,  H01S3/06758 ,  H01S3/08045 ,  H01S3/094007 ,  H01S3/115 ,  H01S3/2325 ,  H01S2301/03

摘要： The invention describes techniques for the control of the spatial as well as spectral beam quality of multi-mode fiber amplification of high peak power pulses as well as using such a configuration to replace the present diode-pumped, Neodynium based sources. Perfect spatial beam-quality can be ensured by exciting the fundamental mode in the multi-mode fibers with appropriate mode-matching optics and techniques. The loss of spatial beam-quality in the multi-mode fibers along the fiber length can be minimized by using multi-mode fibers with large cladding diameters. Near diffraction-limited coherent multi-mode amplifiers can be conveniently cladding pumped, allowing for the generation of high average power. Moreover, the polarization state in the multi-mode fiber amplifiers can be preserved by implementing multi-mode fibers with stress producing regions or elliptical fiber cores These lasers find application as a general replacement of Nd: based lasers, especially Nd:YAG lasers. Particularly utility is disclosed for applications in the marking, micro-machining and drilling areas.