AI Article Synopsis
- The new ultrafast multipass laser amplifier is designed for sub-millijoule output energy and can operate at over 40 kHz.
- It features a titanium:sapphire (ti:sapphire) crystal, a grism stretcher, and an advanced design that reduces the need for high pump pulse energies.
- Initial tests showed it can produce output energies of 290 µJ at 10 kHz and 270 µJ at 15 kHz, with a pulse duration of 36 femtoseconds.
Article Abstract
We present a novel ultrafast multipass laser amplifier design optimized for sub-millijoule output energy and capable of being operated at repetition rates exceeding 40 kHz. This ti:sapphire based system makes use of a grism based stretcher, a cryogenically cooled ti:sapphire crystal and an astigmatically compensated multipass amplifier design that allows for pumping with significantly lower pump pulse energies than has been demonstrated to date. We also make use of the downchirped pulse amplification scheme to minimize loss in the pulse compression process. Preliminary experiments demonstrate an output pulse energy of 290 muJ at 10 kHz and 270 muJ at 15 kHz with a pulse duration of 36 fs.
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| http://dx.doi.org/10.1364/oe.14.009277 | DOI Listing |
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