23.7-W picosecond cryogenic-Yb:YAG multipass amplifier | Zendy

Shigeki Tokita | Zendy; Junji Kawanaka | Zendy; Yasukazu Izawa | Zendy; Masayuki Fujita | Zendy; Toshiyuki Kawashima | Zendy

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23.7-W picosecond cryogenic-Yb:YAG multipass amplifier

Author(s) -

Shigeki Tokita,

Junji Kawanaka,

Yasukazu Izawa,

Masayuki Fujita,

Toshiyuki Kawashima

Publication year - 2007

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.15.003955

Subject(s) - optics , materials science , picosecond , amplifier , pulse duration , beam (structure) , diode , pulse repetition frequency , laser , laser beam quality , pulse (music) , optoelectronics , laser beams , physics , detector , telecommunications , computer science , radar , cmos

A diode-pumped picosecond 8-pass amplifier with a liquid-nitrogen-cooled Yb:YAG crystal has been developed. An average output power of 23.7 W with a near-diffraction-limited beam quality (M(2) < 1.2) was obtained at a pulse repetition rate of 80 kHz and a pulse duration of 11.7 ps. Average powers above 20 W were also obtained in the 30-80 kHz repetition rate range. The pulse energy reached almost 1 mJ at the 20 kHz repetition rate.

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