Nanosecond laser system NanoFLux MM

Q-switchedpumpingfor spectroscopy

The NanoFLux MM series are high energy multimode Q-switched Nd:YAG lasers designed to deliver high energy nanosecond pulses at 1064 nm. These lasers offer high pulse energy, excellent pulse-to-pulse energy stability, and superior beam quality, making them ideal for applications such as OPO or Ti:Sapphire pumping, material processing, and plasma diagnostics.

Features

• High energy nanosecond lasers
• Up to 10 J pulse energies
• 5 ns pulse duration (options up to 20 ns available)
• 10 or 20 Hz pulse repetition rate
• Better than 0.5% RMS pulse energy stability
• Versions available with M² up to 90
• High efficiency pump chambers and advanced beam shaping for maximum pulse energy extraction
• Relay imaging between amplifier stages for smooth beam profile at the laser output
• Thermally induced birefringence compensated
• Optional temperature stabilized second, third, fourth, and fifth harmonic generators
• Low jitter internal/external synchronization
• Robust and stable laser head
• Control via keypad, USB, and LAN interfaces with supplied Windows control software (RS232 optional)

Applications

• OPO, Ti:Sapphire, dye laser pumping
• Material processing
• Plasma generation and diagnostics
• Nonlinear spectroscopy
• Remote sensing

Description

• Q-switched oscillators are designed as reliable and stable nanosecond seeding sources, producing hundreds of mJ pulses from a compact body. Easy access to critical compartments allows for straightforward maintenance.
• High M² versions use a prolonged oscillator design, enabling a higher number of oscillating modes and resulting in a very homogeneous and flat beam profile, useful for specific applications.
• Linear amplifiers in the NanoFLux series provide a cost-effective solution for high energy nanosecond systems. Advanced beam shaping ensures a smooth, hotspot-free spatial profile at the output. Low light depolarization allows efficient generation of up to the 4th harmonic with optional built-in harmonic generators.
• Angle-tuned nonlinear crystal harmonic generators, mounted in temperature-stabilized heaters, are used for second, third, and fourth harmonic generation. Harmonic separation ensures high spectral purity and directs radiation to output ports. Harmonic generators can be integrated into or placed outside the laser head. Output wavelength switching is manual, with motorized switching available on request.
• Triggering is possible from internal or external pulse generators, with less than 0.5 ns RMS jitter relative to the Q-switch trigger pulse.
• System control is available via control pad, USB, and LAN interfaces (RS232 optional), and can be managed from a PC with supplied Windows software.

Options

• – G: Provides a Gaussian-like beam profile (pulse energies typically 80% lower than standard version)
• – M20…90: Provides a flat, smooth beam profile without hot spots or diffraction rings (M² > 20 or M² > 90)
• – RLI: Optional Relay Imaging for smooth beam profile
• – AW: Water-air cooling option (replaces or supplements water-to-water cooling unit; heat dissipation equals total power consumption)
• – N10…N20: 10–20 ns pulse duration (range 2–25 ns)

Specifications

• Output energy at 1064 nm: 3000 mJ (N3k10), 5000 mJ (N5k10), 7000 mJ (N7k10), 10000 mJ (N10k10)
• Output energy at 532 nm: 1500 mJ, 2500 mJ, 3500 mJ, 5000 mJ
• Output energy at 355 nm: 1000 mJ, 1300 mJ, 1700 mJ, 2000 mJ
• Output energy at 266 nm: 270 mJ, 400 mJ, 500 mJ, 700 mJ
• Pulse repetition rate: 10 Hz
• Pulse duration: 5 ± 1 ns (standard), other durations available
• Pulse energy stability at 1064 nm: ≤ 0.5%
• Pulse energy stability at 532 nm: ≤ 1%
• Pulse energy stability at 355 nm: ≤ 2%
• Pulse energy stability at 266 nm: ≤ 3%
• Long-term power drift: ±2%
• Beam spatial profile: Super-Gaussian
• M²: ~5 (standard), versions with M² 20–90 available
• Beam diameter: ~18 mm (N3k10, N5k10), ~25 mm (N7k10, N10k10)
• Beam pointing stability: ≤ 50 µrad
• Beam divergence: ≤ 0.5 mrad
• Optical pulse jitter: ≤ 0.5 ns
• Linewidth: ≤ 1 cm⁻¹
• Polarization: linear
• Laser head size (W×L×H mm): 460×1250×260 (N3k10), 500×1300×300 (N5k10), 600×1800×300 (N7k10), 700×2000×300 (N10k10)
• Power supply size (W×L×H mm): 550×600×1250 (N3k10, N5k10, N7k10), 550×600×1640 (N10k10)
• Umbilical length: 5 m
• Power requirements: 208, 380 or 400 V AC, three phase, 50/60 Hz
• Power consumption: ≤ 5 kVA (N3k10), ≤ 6 kVA (N5k10), ≤ 7 kVA (N7k10), ≤ 8 kVA (N10k10)
• Water supply: ≤ 5 l/min, 2 Bar, max 15°C (N3k10, N5k10), ≤ 12 l/min, 2 Bar, max 15°C (N7k10, N10k10)
• Operating ambient temperature: 22 ± 2°C
• Storage ambient temperature: 15–35°C
• Relative humidity (non-condensing): ≤ 80%
• Room cleanness: ISO Class 7

Note

• Laser must be connected to mains electricity at all times. If disconnected for more than 1 hour, a warm-up of a few hours is required before switching on.