Femtosecond laser system UltraFlux HR

solid-statefibertunable

UltraFlux HR series is a compact high repetition rate tunable wavelength femtosecond laser system which incorporates the advantages of dual output ultrafast fiber laser, solid-state and parametric chirped pulse amplification technologies. This system is based on the novel OPCPA (Optical Parametric Chirped Pulse Amplification) technology and features a patented front-end design (patents no. EP2827461 and EP2924500). The system offers wavelength tuning ranges of 750–960 nm, 375–480 nm, 250–320 nm, and 210–230 nm, and delivers up to 14 mJ pulse energy at 1 kHz repetition rate. It provides excellent pulse energy stability (≤ 1 % RMS) and long-term average power stability (≤ 1.5 % RMS over 8-hour period). The system can be equipped with perfectly synchronized femtosecond and picosecond output options, hands-free wavelength tuning, and high contrast pulses without additional improvement equipment.

Features

• Based on OPCPA technology
• Patented front-end design (EP2827461, EP2924500)
• Wavelength tuning ranges: 750–960 nm, 375–480 nm, 250–320 nm, 210–230 nm
• Up to 14 mJ pulse energy at 1 kHz repetition rate
• Excellent pulse energy stability: ≤ 1 % RMS
• Excellent long-term average power stability: ≤ 1.5 % RMS over 8 hours
• Perfectly synchronized fs and ps output option available
• Hands free wavelength tuning
• High contrast pulses without additional equipment

Applications

• Broadband CARS and SFG
• Femtosecond pump-probe spectroscopy
• Nonlinear spectroscopy
• High harmonic generation

Description
UltraFlux HR series uses a dual output picosecond fiber laser for seeding both the picosecond DPSS pump laser and the femtosecond parametric amplifier with a spectrally broadened output. This approach simplifies the system by excluding the femtosecond regenerative amplifier and eliminating the need for pump and seed pulse synchronization, ensuring practically zero jitter between channels. The output pulse contrast in the picosecond to nanosecond time scale is enhanced. All UltraFlux series laser systems are assembled on a rigid breadboard or optical table for excellent long-term stability. The modular internal design allows for high customization and easy scalability, with the possibility to add custom specifications or multiple channels. The incorporation of parametric chirped pulse amplification technology and a novel ultrafast fiber laser enables advanced femtosecond pump-probe, nonlinear spectroscopy, high harmonic generation experiments, and other ultrafast science applications.

Options

• -F10: Short Pulse option reduces output pulse duration to ≤ 10 fs (wavelength tunability not available with this option)
• -CEP: CEP stabilization to ≤ 400 mrad (passive and active CEP stabilization)
• -DM: Deformable Mirror option for Strehl ratio improvement to > 0.9
• -SH/TH/FH: Second, third, and fourth harmonic outputs (conversion efficiency from signal ~20%, ~5%, ~1%; not simultaneous with signal output)
• -ps out: Additional ps output optically synchronized to main system output (can be simultaneous or non-simultaneous)
• -AW: Air-water cooling (no external water required; heat dissipation equals total power consumption)

Specifications

• Model variants: UltraFlux FT031k, FT31k, FT61k, FT141k
• Output energy (signal): 300 µJ (FT031k), 3 mJ (FT31k), 6 mJ (FT61k), 14 mJ (FT141k)
• SH output: 60 µJ, 0.6 mJ, 1.5 mJ, 3.5 mJ
• TH output: 15 µJ, 150 µJ, 0.4 mJ, 1.2 mJ
• FH output: 3 µJ, 30 µJ, 100 µJ, 300 µJ
• Pulse repetition rate: 1 kHz
• Wavelength tuning range (signal): 750–960 nm
• Wavelength tuning range (SH): 375–480 nm
• Wavelength tuning range (TH): 250–320 nm
• Wavelength tuning range (FH): 210–230 nm
• Scanning steps: 5 nm (signal, SH), 3 nm (TH), 2 nm (FH)
• Pulse duration: 40 ± 20 fs
• Pulse energy stability: ≤ 1.5% (FT031k), ≤ 1% (others)
• Long-term power drift: ± 1.5%
• Beam spatial profile: Gaussian (FT031k), Super-Gaussian (others)
• Beam diameter: ~2 mm (FT031k), ~5 mm (FT31k), ~7 mm (FT61k), ~15 mm (FT141k)
• Beam pointing stability: ≤ 30 µrad
• Temporal contrast: APFC (within ±50 ps): 10^10:1; Pre-pulse (50–10 ps): 10^8:1; Pre-pulse (10–1 ps): 10^6:1; Post-pulse (beyond 20 ps): 10^6:1
• Optical pulse jitter (Trig out): ≤ 100 ps; (Pre-Trig out): ≤ 50 ps; (With –PLL option): ≤ 2 ps
• Polarization: linear, horizontal
• Laser head size (W×L×H mm): 750×1200×300 (FT031k), 900×1500×300 (FT31k), 900×1800×300 (FT61k), 1200×2000×300 (FT141k)
• Power supply size (W×L×H mm): 553×600×850 (FT031k, FT31k, FT61k), 553×600×1250 (FT141k)
• Umbilical length: 2.5 m
• Electrical power: 200–240 V AC, single-phase, 47–63 Hz (FT031k, FT31k); 208, 380 or 400 V AC, three-phase, 50/60 Hz (FT61k, FT141k)
• Power consumption: ≤ 1 kW (FT031k), ≤ 2 kW (FT31k), ≤ 5 kW (FT61k), ≤ 8 kW (FT141k)
• Water supply: not required (FT031k, FT31k, FT61k), ≤ 5 l/min, 2 Bar, max 20 °C (FT141k)
• Operating ambient temperature: 22 ± 2 °C
• Storage ambient temperature: 15–35 °C
• Relative humidity (non-condensing): ≤ 80%
• Cleanness of the room: ISO Class 7