High-energy, high-contrast, multiterawatt laser pulses by optical parametric chirped-pulse amplification
2007; Optica Publishing Group; Volume: 32; Issue: 16 Linguagem: Inglês
10.1364/ol.32.002315
ISSN1539-4794
AutoresHiromitsu Kiriyama, Michiaki Mori, Yoshiki Nakai, Yoichi Yamamoto, Manabu Tanoue, Atsushi Akutsu, Takuya Shimomura, Shuji Kondo, Shuhei Kanazawa, Hiroyuki Daido, Toyoaki Kimura, N. Miyanaga,
Tópico(s)Advanced Fiber Laser Technologies
ResumoWe describe a compact, reliable, high-power, and high-contrast noncollinear optical parametric chirped-pulse amplifier system. With a broadband Ti:sapphire oscillator and grating-based stretching and compression, the chirped pulses are amplified from 0.1 nJ to 122 mJ in type I β-barium borate optical parametric chirped-pulse amplifiers with a total gain of over 109 at 10 Hz repetition rate. Pulse compression down to 19-fs duration achieved after amplification indicates a peak power of 3.2 TW at an average power of 0.62 W. The prepulse contrast is measured to be less than 10−8 on picosecond time scales.
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