Signal amplifier PicoFlux HP

RFpicosecond

The PicoFlux HP series are high repetition rate diode pumped picosecond amplifiers designed to deliver up to 150 mJ picosecond pulses at 1 kHz repetition rate or 500 mJ at 100 Hz. These amplifiers offer high pulse energy, excellent pulse-to-pulse energy stability, and superior beam quality, making them ideal for demanding applications such as OPCPA pumping, non-linear optics, and advanced spectroscopy.

Features

• Diode pumped picosecond amplifiers
• Pulse energies up to 150 mJ
• 20 – 300 ps pulse duration
• High pulse energy up to 2 kHz pulse repetition rate
• Diode pumped solid state design
• Advanced beam shaping for high pulse energy
• Internal or external seeding source
• Thermally induced birefringence compensated
• Low maintenance costs
• Less than 10 ps RMS jitter synchronization pulses for streak camera triggering
• Control through USB and LAN interfaces with supplied Windows control software (RS232 optional)
• Vacuum image relay system
• Optional temperature stabilized second, third and fourth harmonic generators
• Optional extremely precise synchronization to external RF signal with PLL option
• Optional Gaussian like spatial beam profile with Gaussian fit > 85 % in near field
• Optional reduced pulse duration to 20 ps

Applications

• Time resolved spectroscopy
• SFG/SHG spectroscopy
• Nonlinear spectroscopy
• OPCPA pumping
• OPG/OPA pumping
• Remote laser sensing
• Satellite ranging
• Other spectroscopic and nonlinear optics applications

Description
High repetition rate PicoFlux series amplifiers are designed to be seeded by an external seeding source. The diode pumped regenerative amplifier ensures amplification of the seed signal to stable mJ level pulses for further amplification in linear amplifiers. Advanced beam shaping ensures a smooth, hot-spot-free beam spatial profile at the laser output. Low light depolarization allows high efficiency generation of up to the 4th harmonic with optional built-in harmonic generators. Alternatively, an internal seeder can be provided to meet customer requirements.
Angle-tuned LBO and/or BBO crystals mounted in temperature stabilized heaters are used for second, third, and fourth harmonic generation. The harmonic separation system ensures high spectral purity of radiation and directs it to the output ports.
For user convenience, the amplifier can be controlled via USB and LAN interfaces (RS232 optional), with supplied Windows control software.

Options

• Custom pulse duration between 20 ps and 300 ps (shortening below 90 ps reduces output energy proportionally)
• 50 Hz or 100 Hz pulse repetition rate (energy can be increased ~4 times)
• 2 kHz pulse repetition rate (reduces output energy of fundamental by ~50%)
• Gaussian like spatial beam profile (reduces output energy of fundamental by ~80%)
• External seeder input via motorized spectral broadening stage (requires >1.5 nJ per pulse @ 800 nm, 100 fs)
• Phase Lock Loop (PLL) option for precise lock to external RF signal (electrical to optical signal jitter ≤ 3 ps)
• Second, third, and fourth harmonic outputs (conversion efficiency from fundamental: ~50%, ~30%, ~10%; not simultaneous with fundamental output)
• Water-to-Air cooling (replaces or supplements Water-to-Water cooling unit; heat dissipation equals total power consumption)

Specifications

• Model variants: PicoFlux P500100, PicoFlux P301k, PicoFlux P601k, PicoFlux P1301k
• Output energy (fundamental): up to 500 mJ (P500100), 30 mJ (P301k), 60 mJ (P601k), 130 mJ (P1301k)
• SH output: up to 300 mJ, 20 mJ, 40 mJ, 85 mJ
• TH output: up to 200 mJ, 10 mJ, 20 mJ, 50 mJ
• FH output: up to 50 mJ, 3 mJ, 6 mJ, 15 mJ
• Pulse repetition rate: 100 Hz (P500100), 1 kHz (others)
• Pulse duration: 90 ± 10 ps (standard), customizable 20–300 ps
• Pulse energy stability (fundamental): ≤ 0.5 % RMS
• Long-term power drift: ± 1.5 %
• Beam spatial profile: Super-Gaussian (6-11th order in near field)
• Beam diameter: ~12 mm (P500100), ~5 mm (P301k), ~7 mm (P601k, P1301k)
• Beam pointing stability: ≤ 20 µrad
• Beam divergence: ≤ 0.5 mrad
• Pre-pulse contrast: > 200:1 (1000:1 available upon request)
• Optical pulse jitter (Trig out): ≤ 100 ps; (Pre-Trig out): ≤ 50 ps; (with PLL): ≤ 2 ps
• Polarization: linear
• Laser head size (W×L×H mm): 1200×2400×300 (P500100), 600×1500×300 (P301k), 900×1500×300 (P601k), 900×1800×300 (P1301k)
• Power supply size (W×L×H mm): varies by model
• Umbilical length: 2.5 m (up to 5 m available upon request)
• Electrical power: 208, 380 or 400 V AC, three-phase, 50/60 Hz
• Power consumption: ≤ 5 kW (P500100, P301k), ≤ 10 kW (P601k), ≤ 22 kW (P1301k)
• Water supply: up to 40 l/min, 2 Bar, max 15–20 °C (varies by model)
• Operating ambient temperature: 22 ± 2 °C
• Storage ambient temperature: 15–35 °C
• Relative humidity (non-condensing): ≤ 80 %
• Room cleanness: ISO Class 7