CAJ | 학술논문

研制了一台高效率全固态平均功率7.13 W的1 319 nm宏微脉冲激光器.激光器采用热稳Z形折叠腔,增益模块采用自行研制的准连续15个二极管芯片环形泵浦的Nd:YAG模块,采用主动声光锁模器作为锁模元件,并在腔内插入倍频KTP晶体对激光器的输出尖峰进行抑制.为了获得稳定的锁模状态,对激光器腔长进行了精确设计和调节.当激光器腔长与锁模器驱动频率匹配时,获取了宏脉冲重复频率400 Hz、脉宽约190 μs,微脉冲重复频率95.6 MHz、脉宽小于1.0 ns的1 319 nm激光脉冲.
연제료일태고효솔전고태평균공솔7.13 W적1 319 nm굉미맥충격광기.격광기채용열은Z형절첩강,증익모괴채용자행연제적준련속15개이겁관심편배형빙포적Nd:YAG모괴,채용주동성광쇄모기작위쇄모원건,병재강내삽입배빈KTP정체대격광기적수출첨봉진행억제.위료획득은정적쇄모상태,대격광기강장진행료정학설계화조절.당격광기강장여쇄모기구동빈솔필배시,획취료굉맥충중복빈솔400 Hz、맥관약190 μs,미맥충중복빈솔95.6 MHz、맥관소우1.0 ns적1 319 nm격광맥충.
A high-efficiency, all-solid-state, 7.13 W macro-micro pulse 1 319 nm laser has been developed. The laser used thermal stabilized Z-shaped folded cavity. The gain module developed by ourselves adopted quasi continuous wave 15 diode bars ring-pumped Nd:YAG module. An active acousto-optics mode locker was used as the mode locked device. A second harmonic generation KTP crystal was inserted into the resonator for spike suppression. To get stable mode locked state, the length of the laser was exactly designed and adjusted. When the cavity length was matched to the drive frequency of the acousto-optics mode locker, the macro-micro pulse 1 319 nm laser was successfully obtained. The repetition rate of macro pulses was 400 Hz and the pulse width was about 190 μs. The repetition rate of micro pulses was 95.6 MHz and the pulse width was less than 1.0 ns.