NL300D series

Q-switched Lasers for PIV
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  • Double pulse Q-switched Lasers for PIV
  • Double pulse output at 1064 nm, 532 nm, 355 nm or 266 nm
  • Easy switching between wavelengths
  • Up to 2 x 720 mJ at 1064 nm
  • Double pulse Q-switched Lasers for PIV
  • Double pulse output at 1064 nm, 532 nm, 355 nm or 266 nm
  • Easy switching between wavelengths
  • Up to 2 x 720 mJ at 1064 nm

Features

Features

  • Double-pulsed output at 1064 nm, 532 nm, 355 nm or 266 nm
  • Robust design allows easy switching between colors
  • Control electronics allow operation from external trigger or internal trigger electronics
  • Frame-delay (delay between pulses) variable from 30 ns to 7.5 ms
  • Single power supply cabinet
  • May be controlled by keypad or computer (RS232)
  • LabView™ drivers are included
  • Single output for 532 nm, 355 nm and 266 nm
  • Separate output for 1064 nm
  • Intelligent triggering:
    – Internal/external synchronization
    – Triggering for each laser independently
    – Single/double electrical pulse triggering

Description

Stable output specifications, intelligent triggering and easy operation make NL303D series nanosecond lasers an excellent choice for most liquid and many air-based PIV (particle image velocimetry) applications. Extremely low jitter of optical pulse with respect to sync pulse allows reliable synchronization with external equipment.

Optional double UV (355 nm) pulse models allow pumping of double‑pulse optical parametric oscillators. Operating convenience is achieved through versatile triggering capabilities and adjustable delay between pulses. Simple and proven design allows offering of models for the most common as well as novel research needs. Excellent pulse energy stability and beam quality establish Ekspla lasers as ideal for tasks where high precision and exceptional performance are required.  Compact power supply and cooling units easily fit under tables thus saving valuable laboratory space. For customer convenience the laser is controlled through either its RS232 type PC interface with LabView™ drivers (included) or a user-friendly remote control keypad. Both options ensure easy control of laser settings.

Specifications

ModelNL301D NL303D
Main specifications 1)
Pulse energy
    at 1064 nm2 x 400 mJ2 x 720 mJ
    at 532 nm2 x 180 mJ2 x 340 mJ
    at 355 nm2 x 100 mJ2 x 190 mJ
    at 266 nm2 x 40 mJ2 x 90 mJ
Pulse energy stability (StdDev)
    at 1064 nm< 1 %
    at 532 nm< 1.5 %
    at 355 nm< 3 %
    at 266 nm< 3.5 %
Pulse repetition rate 10 / 20 Hz 2)
Pulse duration 3)3 – 6 ns
Delay between pulses 4) 30 ns – 7.5 ms
Power drift (StdDev)±2 % at 1064 nm
Beam divergence 5) < 0.5 mrad
Optical pulse jitter (StdDev)≤ 0.5 ns
Focusability<2X diffraction limit at 1064 nm
Beam pointing stability± 50 µrad at 266 nm
Linewidth< 1.4 cm-1 at 532 nm
Beam profile Top Hat in near field, near Gaussian in far field
Beam diameter 6)6 mm8 mm
Polarizationhorizontal, <90% at 1064 nm
Physical characteristics
Laser head (W × L × H)320 × 820 × 220 mm
Power supply/cooling cabinet size (W × L × H)555 × 600 × 460 mm (water-water cooling) (MR-9)
555 × 600 × 660 mm (air-water cooling) (MR-12)
Umbilical length2.5 m
Operating requirements
Water consumption (max 20 °C) < 10 l/min
Ambient temperature18 – 27 °C
Relative humidity5 – 80 % (non-condensing)
Power requirements208-230 V AC, single phase 60 Hz
Power consumption < 3 kVA x 2 = 5 kVA
  1. Specifications are subject to changes without advance notice.
  2. 20 Hz is available, please inquire for detailed specifications.
  3. FWHM at 1064 nm.
  4. Variable by 125 ns step. Can be adjusted virtually to any value when externally triggered.
  5. Full angle at FWHM level.
  6. Measured at 1/e² level.

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