Highly stable sub-nanosecond Nd:YAG pump laser for optically synchronized optical parametric chirped-pulse amplification | Zendy

Yasuhiro Miyasaka | Zendy; Kotaro Kondo | Zendy; Maki Kishimoto | Zendy; Michiaki Mori | Zendy; M. Kando | Zendy; Hiromitsu Kiriyama | Zendy

Open Access

Highly stable sub-nanosecond Nd:YAG pump laser for optically synchronized optical parametric chirped-pulse amplification

Author(s) -

Yasuhiro Miyasaka,

Kotaro Kondo,

Maki Kishimoto,

Michiaki Mori,

M. Kando,

Hiromitsu Kiriyama

Publication year - 2021

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.430953

Subject(s) - materials science , optics , nanosecond , laser , pulse duration , regenerative amplification , ti:sapphire laser , chirped pulse amplification , fiber laser , optoelectronics , sapphire , optical amplifier , ultrashort pulse , physics

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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