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浏览/检索结果: 共4条，第1-4条 帮助 限定条件 内容类型：会议论文     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 1540-nm single frequency single-mode pulsed all fiber laser for coherent Doppler lidar 会议论文 20th international symposium on high power laser systems and applications (hpls and a) 作者:  Zhang, Xin;  Diao, Weifeng;  Liu, Yuan;  Liu, Jiqiao;  Hou, Xia 收藏  |  浏览/下载：16/0  |  提交时间：2016/11/28 Linearly-polarized operation of a Yb3+-doped double-clad fiber laser 会议论文 5th international symposium on photoelectronic detection and imaging (ispdi) - high power lasers and applications 作者:  Feng De-jun;  Huang Wen-yu;  Zhang Pei-pei;  Zhou Jun;  Gu Xi-jia 收藏  |  浏览/下载：12/0  |  提交时间：2016/11/28 Research on all fiber beat length measurement system for polarization-maintaining fibers 会议论文 4th International Seminar on Modern Cutting and Measurement Engineering, Beijing, PEOPLES R CHINA, 2011-01-01 作者:  Peng, Li;  Feng, Lishuang;  Zhang, Xiaoqing;  Hong Lingfei 收藏  |  浏览/下载：5/0  |  提交时间：2020/01/06 Beat length  Polarization-maintaining fiber  Testing  All fiber   Phase characteristics of laser beam in fibers (EI CONFERENCE) 会议论文 5th International Workshop on Adaptive Optics for Industry and Medicine, August 29, 2005 - September 1, 2005, Beijing, China Chai C.; Liu S.; Liu J.; Wang L.; Jia G. 收藏  |  浏览/下载：18/0  |  提交时间：2013/03/25 The phase changing rates1 of laser beam in single mode polarization maintaining fiber (PMF)  Yb-doped rectangular inner cladding dual-clad fiber (DCF) and Yb-doped large-mode-area dual-clad fiber (LMF) are investigated by means of interference under situations with different exterior disturbance  for situations that all the fibers are used as transmission medium only  as well as amplifying medium with the last two. In this paper  phase fluctuation characteristics of the beam transmitted through the fibers with no amplification are presented. The results show that the phase fluctuation frequencies of the laser beam transmitted through these three kinds of fibers are mainly in the range of 100-200Hz  100-300Hz and 80-400Hz respectively in normal laboratory environment. The phase fluctuation frequencies of the laser beam transmitted through the DCF  in cases of when the environment temperature is changing  a constant pressure is applied to the fiber and when vibration is applied  are mainly in the range of 100-600Hz  100Hz-300Hz and 100-500Hz respectively. In the same cases  for the LMF  the phase fluctuation frequencies are mainly in the range of 150-600Hz  100-400Hz and 100-1000Hz  respectively. It indicates that for realizing phase stabilization  the bandwidth of any potential phase control2 system has to be in the range of a few kilohertz.