Picosecond laser system PL2230

pumpingfor spectroscopyNd:YAG

The PL2230 series are diode-pumped, air-cooled, mode-locked picosecond Nd:YAG lasers designed to deliver high energy picosecond pulses up to 40 mJ at a 100 Hz repetition rate. These lasers offer precise pulse energy control, excellent short-term and long-term stability, and are suitable for demanding scientific applications.

Features

• Diode pumped power amplifier producing up to 40 mJ per pulse at 1064 nm
• Beam profile improvement using advanced beam shaping system
• Hermetically sealed DPSS master oscillator
• Diode pumped regenerative amplifier
• Air-cooled
• <30 ps pulse duration
• Excellent pulse duration stability
• Up to 100 Hz repetition rate
• Streak camera triggering pulse with <10 ps jitter
• Excellent beam pointing stability
• Thermo stabilized second, third or fourth harmonic generator options
• PC control
• Remote control via keypad

Applications

• Time resolved fluorescence (including streak camera measurements)
• SFG/SHG spectroscopy
• Nonlinear spectroscopy
• Laser-induced breakdown spectroscopy
• OPG pumping
• Remote laser sensing
• Satellite ranging
• Other spectroscopic and nonlinear optics applications

Description
The core of the PL2230 system is a diode pumped solid state (DPSS) master oscillator in a sealed monolithic block, generating high repetition rate pulse trains (90 MHz) with low single pulse energy. Diode pumped amplifiers boost the pulse energy up to 40 mJ. The high-gain regenerative amplifier achieves an amplification factor near 10⁶, followed by a multipass power amplifier optimized for efficient energy extraction and maintaining a near Gaussian beam profile. Output pulse energy can be adjusted in ~1% steps, with pulse-to-pulse energy stability below 0.5% rms at 1064 nm.
Angle-tuned KD*P and KDP crystals in thermostabilised ovens enable second, third, and fourth harmonic generation, with harmonic separators ensuring high spectral purity at different output ports. Built-in energy monitors provide continuous output pulse energy monitoring, viewable on a remote keypad or PC. The laser offers triggering pulses for equipment synchronization, with adjustable lead up to 500 ns (user adjustable in ~0.25 ns steps) and a pretrigger feature up to 1000 μs. The system can be controlled via USB (VCP, ASCII commands), RS232 (ASCII commands), LAN (REST API), WLAN (REST API), or a remote control pad with a backlit display.

Communication Interfaces

• USB: virtual serial port, ASCII commands
• RS232: ASCII commands
• LAN: REST API
• WLAN: REST API

Options

• -P20: 20 ps ±10% output pulse duration, ~30% lower pulse energies compared to 29 ps version
• -P80: 80 ps ±10% output pulse duration, same pulse energy as 29 ps version
• -P10: 10±2 ps pulse duration, ~50% lower pulse energies compared to 29 ps version (PL2230A-100 only)
• -PLL: Allows locking the master oscillator pulse train to an external RF generator for precise external triggering with low jitter
• PL2231A-50 HE: 50 Hz repetition rate, ~30% higher pulse energy compared to laser without depolarization compensation, 29±5 ps pulse duration
• PL2231A-10: 10 Hz repetition rate, ~2x higher pulse energy compared to 50 Hz version, 29±5 ps pulse duration

Performance and Drawings

• Typical near field output beam profile and laser head dimensions available

Characteristics / Technical Specifications

• Pulse energy (at 1064 nm): up to 40 mJ (PL2231A-50), 30 mJ (PL2231-50), 6 mJ (PL2230A-100), 3 mJ (PL2230-100)
• Pulse energy (at 532 nm): up to 18 mJ (PL2231A-50), 13 mJ (PL2231-50), 3 mJ (PL2230A-100), 1.3 mJ (PL2230-100)
• Pulse energy (at 355 nm): up to 13 mJ (PL2231A-50), 9 mJ (PL2231-50), 2 mJ (PL2230A-100), 0.9 mJ (PL2230-100)
• Pulse energy (at 266 nm): up to 5 mJ (PL2231A-50), 3 mJ (PL2231-50), 0.6 mJ (PL2230A-100), 0.3 mJ (PL2230-100)
• Pulse duration (FWHM): 29 ± 5 ps (standard), options for 10 ps, 20 ps, 80 ps
• Pulse duration stability: ±1%
• Power drift: ±2%
• Pulse repetition rate: up to 100 Hz (PL2230-100, PL2230A-100), 50 Hz (PL2231-50, PL2231A-50), 10 Hz (PL2231A-10)
• Polarization: vertical, >99%
• Pre-pulse contrast: >200:1
• Beam profile: close to Gaussian
• Beam divergence: <0.7–1.5 mrad
• Beam propagation ratio M²: <1.3–2.5
• Beam pointing stability (RMS): ≤10–20 μrad
• Typical beam diameter: ~2–7 mm (model dependent)
• Optical pulse jitter: <50 ps (internal), ~3 ns (external)
• TRIG1 OUT pulse delay: -500 to 50 ns
• Typical warm-up time: 5–15 min
• Laser head size (W × L × H): 456 × 1031 × 249 ± 3 mm
• Electrical cabinet size: 471 × 391 × 147 ± 3 mm (except PL2230-100: 12 V DC adapter, 85 × 170 × 41 ± 3 mm)
• Umbilical length: 2.5 m
• Cooling: air-cooled (PL2230-100, PL2230A-100), stand-alone chiller (PL2231-50, PL2231A-50)
• Room temperature: 22 ± 2 °C
• Relative humidity: 20–80% (non-condensing)
• Power requirements: 110–240 V AC, 5 A, single phase, 50/60 Hz
• Power consumption: <0.15–1.0 kVA