| Theoretical analysis on scanning spectral filter method for signal-noise-ratio improvment in femtosecond laser system | |
Ma Aai-Ru1,2,4; Sui Zhan3; Feng Guo-Ying2; Sun Nian-Chun2; Wang Yi-Shan4 ; Zhang Bin2; Chen Jian-Guo2
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| 2012-04-01 | |
| 发表期刊 | ACTA PHYSICA SINICA
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| 卷号 | 61期号:7 |
| 摘要 | A scanning spectral filter method to improve the signal-noise-ratio in the femtosecond chains is proposed by using the characteristic that the instantaneous frequency varies with the time approximately linearly for the chirped pulse in the time-frequency domain. The scanning spectral filtering for reduing the amplification of spontaneous emission (ASE) intensity is analyzed in the time-frequency domain by using the Short-Time Fourier Transform method. The results show that the pulse contrast can be improved by two orders, and the transmission efficiency of the chirped pulse can exceed 90% when the synchronizing time jitter ranges from -2ps to 2ps and the chirp rate p from 0.9C/T-2 to 1.10C/T-2. Adopting the cascaded scanning filter to improve the pulse contrast is investigated too, which can improve the pulse contrast effectively. The great advantage of this novel nonlinear spectral filter technology is high energy and high peak intensity femtosecond chains for it filters out the ASE in the near field in temporal domain. |
| 文章类型 | Article |
| 关键词 | Ultrafast Optics Ultrafast Technology Spectral Scanning Filtering Short Time Fourier Transform |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 收录类别 | SCI |
| 关键词[WOS] | CHIRPED-PULSE AMPLIFICATION ; HIGH-CONTRAST ; HIGH-ENERGY ; GENERATION ; PROPAGATION ; ENHANCEMENT ; W/CM(2) ; SCHEME ; OPCPA |
| 语种 | 中文 |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| WOS记录号 | WOS:000303029500032 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.opt.ac.cn/handle/181661/24035 |
| 专题 | 瞬态光学研究室 |
| 作者单位 | 1.Xihua Univ, Coll Phys & Chem, Chengdu 610064, Peoples R China 2.Sichuan Univ, Coll Elect Informat, Chengdu 610064, Peoples R China 3.Res Ctr Laser Fus CAEP, Mianyang 621900, Peoples R China 4.Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma Aai-Ru,Sui Zhan,Feng Guo-Ying,et al. Theoretical analysis on scanning spectral filter method for signal-noise-ratio improvment in femtosecond laser system[J]. ACTA PHYSICA SINICA,2012,61(7). |
| APA | Ma Aai-Ru.,Sui Zhan.,Feng Guo-Ying.,Sun Nian-Chun.,Wang Yi-Shan.,...&Chen Jian-Guo.(2012).Theoretical analysis on scanning spectral filter method for signal-noise-ratio improvment in femtosecond laser system.ACTA PHYSICA SINICA,61(7). |
| MLA | Ma Aai-Ru,et al."Theoretical analysis on scanning spectral filter method for signal-noise-ratio improvment in femtosecond laser system".ACTA PHYSICA SINICA 61.7(2012). |
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| Theoretical analysis（1172KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY | 请求全文 | |
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