A thin-disk multi-pass laser amplifier scheme with strong tolerance for variation of thin-disk thermal lensing is proposed and 213 W average output of 800 ps pulse is realized at a repetition rate of 200 kHz, with a pulse energy over 1 mJ. The amplifier was pumped by a commercial fiber coupled laser diode and seeded by a home-made thin-disk laser regenerative amplifier. The maximum magnification of the amplifier was 3.61, with an optical-to-optical efficiency of 20.2% and a slope efficiency over 30%. This compact amplifier maintains steady operation while the dioptric power of the thin-disk varies from −0.45 m ⁻¹ to −0.82 m ⁻¹ .

中文翻译：

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多通道放大器耐受性强薄盘热透镜提供皮秒脉冲

提出了一种对薄盘热透镜变化具有强耐受性的薄盘多通激光放大器方案，在200 kHz的重复频率下实现了800 ps脉冲的213 W平均输出，脉冲能量超过1 mJ。该放大器由商用光纤耦合激光二极管泵浦，并由自制的薄盘激光再生放大器提供种子。该放大器的最大放大倍数为3.61，光对光效率为20.2%，斜率效率超过30%。当薄盘的屈光度从-0.45 m ^-1到-0.82 m ^-1变化时，这种紧凑型放大器保持稳定运行 。