The REUS series is a family of regenerative and multipass ultrafast solid-state titanium-sapphire laser amplifiers. The systems produce ultra-short pulses of < 35 fs with solid-state seed oscillator. At a wavelength of 800 nm, different models are available with repetition rates in the range from 15 Hz to 1 kHz.
- High nanosecond contrast ratio 104:1
- User-adjustable output repetition rate (standard package)
- Upgrade to TW-level
- One-box solution
- High beam quality and long-term stability
- Pump-probe spectroscopy
- Ultrafast OPA pumping
- Ultrafast micromachining
- Femtosecond ablation
- OPG pumping
- Front-end for TW and PW cass femtosecond amplifiers
- Semiconductor studies
The REUS femtosecond amplifier family comprises regenerative, multipass and combined (RA+MPA) systems with Ti:S as active amplification medium. The systems are based on chirped pulse amplification approach (CPA) when femtosecond pulses being formed in a seed oscillator are stretched in a pulse stretcher, then amplified to required energy and then compressed back to femtosecond pulse duration. Almost all REUS amplifiers are equipped with a built-in pulse slicer (output pulse picker) based on a Pockels cell that significantly increases the systems contrast ratio and provides total control over the output pulse repetition rate including programmable bursts and "pulse-on-demand" functionality. The systems may be manufactured as a single one-box unit with integrated seed oscillator and pump lasers or as a separate modules with various configuration and adaptation possibilities with a customer-provided seed oscillator or amplifier pump laser(s).
We offer two basic seed oscillator modules: a solid-state Ti:S femtosecond oscillator with a wider spectrum resulting in ~30-40 fs amplified pulse duration or a fiber laser seed oscillator unit with a narrower spectrum but smaller footprint and likely more budget-friendly resulting in 90-120 fs amplified pulse duration. The systems may be adapted to accept a third-party seed oscillator or customized for a different set of seed and output parameters.
The system's output may be increased step by step by gradually adding additional amplification stages up to TW-level with 500 mJ pulse energy (10 Hz repetition rate).
|Pulse energy||> 500 µJ||> 1.5 mJ||> 3 mJ||> 5 mJ||> 5 mJ||> 10 mJ||> 25 mJ||up to 40 mJ|
|Wavelength||800 ± 20 nm (fixed)||740 - 950 nm|
|Pulse duration (FWHM)||< 35 fs with solid-state seed oscillator
< 100 fs with fiber seed oscillator
|30 - 120 fs|
|Repetition rate 2)||1 kHz||100 Hz||1 kHz||1 kHz||20 Hz||15 Hz||15 Hz||1 Hz - 10 kHz|
|Beam quality (M2)||< 1.3||< 1.3||< 1.3||< 1.5||< 1.3||< 1.5||< 2||-|
|Pulse energy stability (RMS)||< 2.5 %||< 2 %||< 1 %||< 1 %||< 2.5 %||< 2.5 %||< 2.5 %||-|
1) The ranges of paramenters in this column are given for possible customized development of an amplifier system or its adaptation to a customer-provided pump laser and/or seed oscillator.
2) The output pulse repetition rate is adjustable via a built-in pulse slicer from single-shot to nominal rep. rate of a given amplifier.