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We report that 60-J output energy from a Ti:sapphire amplifier was achieved with 120-J pump energy under the condition of the strong transverse parasitic lasing. To suppress the transverse parasitic lasing, the time delay between an IR pulse and a pump pulse was optimized.
We have developed an 1-PW 30-fs Ti:sapphire laser with 0.1-Hz repetition rate. From its final booster amplifier pumped with 96-J energy, IR laser pulses with 47-J energy and flat-top spatial intensity profile have been obtained.
We report on the development of a sub-mJ Ti:sapphire laser operating at 50 kHz. Downchirped-pulse amplification chain, including 2 amplifiers pumped by one green laser, allows the generation of multi-GW femtosecond laser pulses.
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