材料科学
光学
纳秒
激光器
脉冲持续时间
再生放大
钛宝石激光器
放大
光纤激光器
光电子学
蓝宝石
光放大器
超短脉冲
物理
作者
Yasuhiro Miyasaka,Kotaro Kondo,Maki Kishimoto,M. Mori,Masaki Kobayashi,Hiromitsu Kiriyama
出处
期刊:Optics Express
[The Optical Society]
日期:2021-09-24
卷期号:29 (20): 32404-32404
摘要
We developed an optically synchronized highly stable frequency-doubled Nd:YAG laser with sub-nanosecond pulse duration. The 1064 nm seed pulses generated by soliton self-frequency shift in a photonic crystal fiber from Ti:sapphire oscillator pulses were stabilized by controlling input pulse polarization. The seed pulses were amplified to 200 mJ by diode-pumped amplifiers with a high stability of only <0.2% (rms). With an external LBO doubler, the system generated 330 ps green pulse energy of 130 mJ at 532 nm with a conversion efficiency of 65%. The pulse duration was further extended to 490 ps by adjusting Nd:YAG crystal temperature. To the best of our knowledge, these results present a longer pulse duration with higher stability than previous Nd:YAG lasers with sub-nanosecond optical synchronization.
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