[EKSPLA]
NL300 series

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Description

 

NL300 series electro-optically Q-switched nanosecond Nd:YAG lasers produce high energy pulses with 3 – 6 ns duration. Pulse repetition rate can be selected in range of 10 – 30 Hz.

NL30×G models are optimized for OPO pumping that requires smooth beam profile without hot spots.

NL30×HT models are designed for maximum energy extraction from the active element. Up to 800 mJ pulse energy can be produced at a 10 Hz pulse repetition rate.

A wide range of harmonic generator modules for generation up to a 5th harmonic is available.

Harmonics generators can be combined with attenuators that allow smooth output energy adjustment without changing other laser parameters, i.e. pulse duration, pulse-to-pulse stability, divergence or beam profile. For a more detailed description of harmonic and attenuator modules please check our harmonic generators selection guide.

The extremely compact laser head is approximately 480 mm long and can be fitted into tight spaces. The laser power supply has a 330 × 490 mm footprint. Easy access to the water tank from the back side of the power supply facilitates laser maintenance. Replacement of flashlamp does not require removal of pump chamber from the laser cavity and does not lead to possible misalignment. The powering unit can be configured with water-to-water or water-to-air heat exchangers. The latter option allows for laser operation without the use of tap water for cooling.

For customer convenience the laser can be controlled via a RS232 or USB port with LabView™ drivers (included) or a user-friendly remote control pad. Both options allow easy control of laser settings.

Feature

  • Rugged sealed laser cavity
  • Up to 800 mJ pulse energy
  • Better than 1 % rms pulse energy stability
  • 10–30 Hz pulse repetitio rate
  • 3–6 ns pulse duration
  • Thermo stabilized second, third, fourth and fifth harmonics generator modules
  • Optional attenuators for fundamental and/or harmonics wavelengths
  • Water-to-water or water-to-air cooling options
  • Replacement of flashlamps without misalignment of laser cavity
  • Remote control via keypad and/or RS232/USB port

Related Applications

  • Material processing
  • OPO, Ti:Sapphire, dye laser pumping
  • Laser spectroscopy
  • Remote sensing

Specification
ModelNL301G 1)NL301HTNL303G1)NL303HT
Main specifications 2)
Pulse repetition rate 10 Hz 20 Hz 30 Hz 10 Hz 20 Hz 30 Hz 10 Hz 20 Hz 10 Hz 20 Hz
Pulse energy:
    at 1064 nm 240 mJ 220 mJ 200 mJ 400 mJ 360 mJ 280 mJ 500 mJ 450 mJ 800 mJ 700 mJ
    at 532 nm 3) 100 mJ 90 mJ 70 mJ 180 mJ 160 mJ 120 mJ 210 mJ 190 mJ 360 mJ 310 mJ
    at 355 nm 4) 70 mJ 60 mJ 40 mJ 120 mJ 110 mJ 65 mJ 135 mJ 120 mJ 240 mJ 210 mJ
    at 266 nm 5) 25 mJ 20 mJ 15 mJ 40 mJ 35 mJ 25 mJ 50 mJ 35 mJ 80 mJ 60 mJ
    at 213 nm 6) 5 mJ 4 mJ 3 mJ 8 mJ 7 mJ 5 mJ 10 mJ 7 mJ 13 mJ 10 mJ
Pulse energy stability (Std. Dev.) 7)
    at 1064 nm 1 %
    at 532 nm 1.5 %
    at 355 nm 3 %
    at 266 nm 3.5 %
    at 213 nm 6 %
Power drift 8) ±2 %
Pulse duration 9) 3 – 6 ns
Polarization vertical, >90 %
Optical pulse jitter 10) < 0.5 ns rms
Linewidth <1cm-1
Beam profile 11) "Hat-Top" in near and near Gaussian in far fields
Typical beam diameter 12) ~ 6 mm ~ 8 mm
Beam divergence 13) < 0.6 mrad < 0.5 mrad
Beam pointing stability at 1064 nm 14) 50 µrad rms
Beam height 68 mm
Physical characteristics
Laser head size (W × L × H) 154 × 475 × 128 mm
Power supply unit (water cooled version) (W × L × H) 330 × 490 × 585 mm
Power supply unit (air cooled version) (W × L × H) 330 × 490 × 585 mm 550 × 600 × 680 mm 330 × 490 × 585 mm 550 × 600 × 680 mm 330 × 490 × 585 mm 550 × 600 × 680 mm 330 × 490 × 585 mm 550 × 600 × 680 mm
Harmonic generator unit 
sizes (W × L × H) 15)
154 × 210 × 128 mm for H300SHC or H300STH units
154 × 160 × 128 mm for H300S or H300ST units
154 × 290 × 128 mm for H300FHC unit
Umbilical length 2.5 m
Operating requirements
Water consumption (max 20 °C) 16) < 6 l/min < 10 l/min < 6 l/min < 10 l/min < 8 l/min < 12 l/min < 8 l/min < 12 l/min
Room temperature 15–30 °C
Relative humidity 20–80 % (non-condensing)
Power requirements 17) 18) 208 or 240 V AC, single phase 50/60 Hz
Power consumption 19) < 1.8 kVA < 3.4 kVA < 1.8 kVA < 3.4 kVA < 1.8 kVA < 3.4 kVA < 1.8 kVA < 3.4 kVA
  1. NL301G and NL303G lasers have beam profile optimized for OPO pumping.
  2. Due to continuous improvement, all specifications are subject to change without notice. The parameters marked typical are not specifications. They are indications of typical performance and will vary with each unit we manufacture. Unless stated otherwise all specifications are measured at 1064 nm.
  3. With H300SH, H300S or H300SHC harmonics generator modules. See harmonics generator selection guide for more detailed information.
  4. With H300STH and H300ST harmonics generator modules. See harmonics generator selection guide for more detailed information.
  5. With H300SH and H400FHC harmonics generator modules. See harmonics generator selection guide for more detailed information.
  6. With H300FiHC harmonics generator module. See harmonics generator selection guide for more detailed information.
  7. Averaged from 300 pulses.
  8. Measured over an 8 hour period after a 10 min warm-up when ambient temperature variation is less than ± 2 °C.
  9. FWHM measured with photodiode featuring 500 ps rise time and 300 MHz bandwidth oscilloscope.
  10. Relative to SYNC OUT pulse.
  11. Near field Gaussian fit is >70%.
  12. Beam diameter is measured at 1064 nm at the 1/e² level.
  13. Full angle measured at the 1/e² level.
  14. RMS value measured from 300 shots.
  15. See harmonics generator selection guide for more detailed information.
  16. For water cooled version. Air cooled version does not require tap water for cooling.
  17. Power requirements should be specified when ordering.
  18. 110 V AC powering is available, please inquire for details.
  19. Required current rating can be calculated by dividing power value by mains voltage value.

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