Astrella is used to pump the Topas-Prime by “Light Conversion”.
The Astrella is specified to provide up to >7 mJ pulse energy at 1 kHz, 800 nm at either <35 fs or <100 fs pulse widths. HASS (Highly Accelerated Stress Screening) testing is employed to ensure long term reliability and reproducibility.
The integrated, one-box design employs the new STAR (STable ARchitecture) regenerative amplifier module for increased energy, beam quality and stability. This is seeded by Coherent’s hands-free Vitara oscillator, and is powered by a new pump laser offering enhanced power overhead, stability and beam quality. The final, key sub-system is the advanced, sealed stretcher / compressor designed for superb dispersion compensation and durability.
HASS – Highly Accelerated Stress Screening
- Integrated Vitara seed laser, Revolution laser, STAR regenerative amplifier and sealed, compact stretcher/compressor for ultimate stability and reliability
- HASS* verified for quality and reliability
- STAR regenerative amplifier engine, high performance and reliability module
- All major sub-systems thermally-stabilized for reliable long-term performance
- Innovative, water-only cooled Ti:Sapphire rod assembly for improved beam quality and thermal management
- Sealed stretcher/compressor section with advanced dispersion management for clean, short pulses
- Energy >5 mJ or >7 mJ, 1 kHz
- Pulse Width <35 fs or <100 fs
- Stability <0.5% rms
- Beam quality M2 <1.25
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