项目名称: 可变脉宽啁啾矩形脉冲产生技术研究
项目编号: No.U1330104
项目类型: 联合基金项目
立项/批准年度: 2014
项目学科: 数理科学和化学
项目作者: 顾春
作者单位: 中国科学技术大学
项目金额: 88万元
中文摘要: 本项目研究用于激光惯性约束核聚变驱动器前端的矩形脉冲光源。在驱动器前端系统的一个设计方案中,要求“种籽光源”能为后续系统提供数个具有一定能量和带宽、高信噪比、顶部平坦的纳秒方波激光脉冲作为初步整形脉冲,其脉冲宽度在5-10ns。针对这一需求,本项目提出研究光纤矩形脉冲激光器,该激光器将锁模技术与光纤非线性结合,产生一个中心波长为1053nm,脉冲宽度1ns-30ns连续可调的矩形脉冲激光。该激光器具有结构简单紧凑,操作灵活,脉冲顶部平坦稳定,脉冲宽度调谐简便等优点,且有望解决“幅频效应”带来的影响
中文关键词: 光纤激光器;被动锁模;矩形脉冲;耗散孤子;
英文摘要: In this project, we will focus on the square-waveform laser source generation, which is used in the front-end system of the laser driver in laser inertial confinement fusion. In this front-end system, one of the designs is that the “seed source” to provide high signal-to-noise ratio flat-topped nanosecond square pulses with certain energy and bandwidth, the pulse-width is in the range of 5 – 10 ns. According to this require, we propose to implement a square-waveform fiber laser, which is combined the mode-locked technology and fiber nonlinearity, and output a 1053 nm square-waveform pulse laser with the pulse-width tuning range from 1 ns to 30 ns. The square waveform pulse laser has advantages of compact, flexible, flatten, and tunable, and has the potential to solve the affect of Fm to Am.
英文关键词: fiber laser;passively mode-lock;square-wave pulse;dissipative soliton;