Femtosecond Multipass Ti:Sapphire Amplifier Multus - Avesta Project Ltd. - #1

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Avesta Project, femtosecond lasers and equipment Amplifiers Ti:Sapphire Multipass Amplifier Multus • Rigid design • Compact single-box design • >1 mJ/pulse • Upgradeable up to 150 mJ • <35 fs pulse duration Product overview The Multus MPA Ti: Sapphire multipass amplifier system is designed to amplify single pulses from a CW mode-locked Ti: Sapphire laser. Typically an input pulse with energy of only a few nanojoules can be amplified to over 1mJ. This represents an overall amplification of greater than 106. The amplification takes place as the optical pulse passes 8 times through a Ti: Sapphire laser rod, which has been optically excited by a laser pulse from the Q-switch pump laser. Multipass amplifiers offer less pulse broadening and better contrast between the amplified pulse and amplified stimulated emission (ASE) than regen-erative amplifiers. Because the pulse only makes one pass through the pulse picker, dispersion is reduced and <30 fs pulses from seed source can be highly amplified with little or no pulse broadening. The Multus MPA family of amplifiers comprises a femtosecond seed oscillator (TiF-20F or fiber EFOA-SH), stretcher, Faraday isolator, Pockels cell with control and synchronization unit, multipass amplifier, pulsed amplifier pump laser and compressor. All elements are gathered into a single box, thus providing reliable and stable generation and hands-free opera­tion. Upon customer request the system can be upgraded to deliver up to 150 mJ per pulse by adding further stages of multipass power amplifiers. The Multus MPA family is an ideal source for fundamental research, femtosecond micromachining systems, terahertz imaging, OPA pumping, remote sensing and ultrafast spectroscopy. ♦ oscillator output STRETCHER TiF- 20F femtosecond oscillator COMPRESSOR main output MULTIPASS AMPLIFIER PUMP LASER Multus MPAPOP Amplifier Layout Avesta Project Ltd. P. N. Lebedev Physical Institute, KRF-2 building, Troitsk, 142190, Moscow region, Russia Tel: +7 495 967-94-73 +7 495 745-22-05 +7 4967 51-00-78 Fax: +7 495 646-04-95 e-mail: fs@avesta.ru www.avesta.ru