ASTRELLA COHERENT | Alldatasheet
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Astrella and the new Astrella HE are next-generation, ultrafast, kHz amplifiers that are the first to combine industry-leading performance and industrialized durability. Manufactured to Coherent’s rigorous standards using advanced stress-testing techniques, the one-box Astrella system enables a wide range of demanding scientific applications and operating conditions, offering higher productivity and lower data acquisition costs. Delivering high (up to >9 mJ/pulse) energy, a range of pulse- width options from <35 fs to <100 fs, and excellent beam quality (M2 <1.25), Astrella is ideal for ultrafast spectroscopy, THz studies, femtosecond micromachining, etc. With unmatched performance, reliability and affordability, Astrella stands at the forefront of the industrial revolution in ultrafast science. Ultrafast Ti:Sapphire Amplifier Astrella Scientific Ultrafast Laser Amplifiers FEATURES APPLICATIONS
- One-box, industrialized platform
- HASS (Highly Accelerated Stress Screening) verified for quality and reliability
- >5 mJ, >7 mJ or >9 mJ pulse energies
- <35 fs, <60 fs, <80 fs, or <100 fs pulse width options
- High performance STAR regen amplifier (water-only cooling)
- Hands-free Vitara oscillator
- Revolution pump laser for performance overhead
- Sealed stretcher/compressor section with advanced dispersion management for clean, short pulses
- Thermally-stabilized sub-systems for long term stability
- Time-resolved Spectroscopy
- Multidimensional Spectroscopy
- THz Spectroscopy
- fs Micromachining
- Surface SFG/SHG
- Stimulated Raman Scattering
- High Harmonic Generation
- EUV Spectroscopy
Specifications1 Astrella USP Astrella F Astrella HE USP Astrella HE F Center Wavelength2 (nm) (nominal) 795 to 805 780 to 820 795 to 805 780 to 820 Repetition Rate3 (kHz) 1, 5 Pulse Duration3,4 (fs) (FWHM) <35 <60, <80, <100 <35 <60, <80, <100 Contrast Ratio5 Pre-Pulse Post-Pulse >1000:1 >100:1 Power Stability6,7 (rms) <0.5 Beam Pointing Stability6,7 (μrad) (rms) <10 Beam Diameter (mm) (1/e2) (nominal) 1 kHz 5 kHz 11 13 Spatial Mode TEM00, M² <1.25 Polarization linear, horizontal Energy per Pulse (mJ) 1 kHz 5 kHz >5.0, >7.0 >1.6 >9.0 >2.0 Pump Laser Revolution-50, Revolution-65 Revolution-80 Seed Laser Vitara-S, Vitara-T, or Vitara-T-HP Each System HASS Verified Ye s Notes: 1. Specifications apply at 800 nm. 2. Factory set, must be specified when ordered and will be optimized prior to shipment. 3. Contact factory for other repetition rates and pulse width options. 4. A Gaussian pulse shape de-convolution factor (0.7) is used to determine the pulse width from an autocorrelation signal measured by a Coherent SSA (Single-Shot Autocorrelator). 5. Contrast ratio is defined as the ratio between the peak intensity of the output pulse to the peak intensity of any other pulse that occurs greater than 1 ns before or after the output pulse. 6. Under stable environmental conditions after system warm-up. 7. Over 24 hrs. Astrella HE USP Pulse WidthAstrella HE 24-Hour Stability -100 Pulse Duration (fs) -500 50 100 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Intensity (normalized) Transform Limited Pulse Measured Pulse Average Power (W) 7.5 8.0 8.5 9.0 9.5 10.0 Time (hours) 51 01 52 0 Power Temperature Temperature (°C) Typical Performance Data
© 2023 Coherent Corp. Legal notices : coherent.com/legal For more information www.coherent.com Mechanical Specifications Astrella 1098.0 mm (43.2 in.) 1247.0 mm (49.1 in.) 1213.0 mm (47.7 in.) 262.0 mm (10.3 in.) 159.0 mm (6.3 in.) 149.0 mm (5.9 in.) 499.0 mm (19.6 in.) 159.0 mm (6.3 in.) 58.0 mm (2.3 in.) Astrella Astrella Astrella Top View Right Side View Left Side ViewFront View Rear View