The Libra HE from Coherent is a one-box, ultra-fast, Ti:Sapphire amplifier that delivers higher pulse energy and shorter pulse width than earlier Libra models.
The Libra HE produces pulse energies of more than 3.5mJ at 1kHz and a choice of either <50fs or <100fs pulse width models.
The system is offered with a standard pulse repetition rate of either 1kHz or 5kHz, at 800nm.
Libra one-box amplifiers are integrated systems containing a Vitesse, an industrial-grade oscillator, and the Verdi pump laser, as well as the regenerative amplifier and its associated pulsed pump laser, the Evolution.
Coherent said the Libra HE reaches higher pulse energies reliably and efficiently, and offers improved beam quality with M <1.3 by using the company's E-2 Engine regenerative amplifier design with the high power capabilities of the Evolution pump platform.
The integration of these high-performance sub-systems ensures output stability of <0.5 per cent rms.
The high power and short pulse width of Libra HE is suitable for several power-hungry applications in photochemistry and photophysics.
Examples include pumping multiple tunable OPAs for pump probe experiments, and ultra-fast spectroscopy techniques such as CARS and fluorescence up-conversion.
