High-power VCSEL side pumped 2° wedge angle Nd:YAG repetition rate 1kHz four-pulses sequence picosecond regenerative amplifier

被引：0
作者：
Yang, Ce [1 ]
Chen, Meng [1 ]
机构：
[1] Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China
来源：
TENTH INTERNATIONAL CONFERENCE ON INFORMATION OPTICS AND PHOTONICS | 2018年 / 10964卷
基金：
北京市自然科学基金; 中国国家自然科学基金;
关键词：
picosecond pulse sequence; regenerative amplifier; VCSEL arrays side pumping;
D O I：
10.1117/12.2506216
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A four-pulses sequence picosecond 1064nm regenerative amplifier system with repetition rate of 1 kHz are obtained, which with the average power of 9.2 W and beam quality M-2 factor of 1.2. The Nd:YAG crystal with wedge angle of 2 degrees and size of Phi 4x63 mm is adopted in the regenerative amplifier and around by three VCSEL pumping arrays with an angle of 120 degrees. A laser diode (LD) pumped Nd:YVO4 crystal SESAM mode-locked seed laser is broadened from 20 to 260 ps by double-pass Volume Bragg Gratings and divided into equal amplitudes four-pulse sequence with the pulse spacing of 1 ns by beam splitter mirrors. The four-pulse sequence enters the regenerative amplifier in order and the power is amplified from 0.68 to 9.5 W.
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页数：5
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