Q-DOUBLE is diode pumped, fully air-cooled (water free), Q-switched laser designed to produce two pulses with variable temporal separation. Its target applications are PIV (Particle Image Velocimetry) and LIBS (Laser Induced Breakdown Spectroscopy).
The laser can be configured for total up to 160 mJ pulse energy at 10 Hz pulse repetition rate. In high repetition rate configuration laser can produce up to 40 mJ total pulse energy at 100 Hz repetition rate.
The laser can configured to emit 1053 nm or 1064 nm wavelength from Nd:YLF or Nd:YAG laser crystals respectively. When configured for 1053 nm, the laser can operate from single shot to maximum pulse repetition rate without significant changes in beam divergence or profile.
Our innovative laser design resulted in compact, user-friendly turnkey system that requires little maintenance. There are no chillers or bulky power supplies that one needs fit under the table. All laser electronics are integrated into Q-DOUBLE housing and the only external module is mains adapter that provides 12 or 28 VDC, 50-200 W powering (depending on model).
Laser is controlled trough Ethernet port via build-in web-server. There is no need to install control software – any computer or even cell phone with modern web-browser will be able to control Q-DOUBLE.
Low jitter triggering pulses for user equipment are available with up to 450 µs lead in internal triggering mode. In external triggering mode, laser pulsing can be externally triggered from pulse generator.

Laser functionality can be further extended by wide range of auxiliary equipment:

  • Build-in up to fourth harmonic generator.
  • Build-in motorized attenuators for fundamental wavelength.
  • Build-in pulse energy monitor with analog and/or digital output.
  • Stand-alone air-purging unit.
  • Red or green beam guiding modules

The laser specifications for different pulse repetition rates are summarized in the tables below.

Specifications 1)








Wavelength, nm

1053 nm

1053 or 1064 nm

1064 nm

Pulse repetition rate 2)

10 Hz

20 Hz

33 Hz

50 Hz

100 Hz

Pulse energy

80 mJ

60 mJ

40 mJ

20 mJ

Typical pulse duration 3)

<5 ns

<7 ns

Pulse energy stability 4)

< 0.5 % RMS

Power drift 5)

± 3.0 %

Beam profile

Bell-shaped, >80% fit to Gaussian

Beam divergence 6)

<1 mrad


Linear, horizontal

Typical beam diameter 7)

4.0 mm

3.5 mm

Jitter 8)

< 0.5 ns RMS

Optional harmonics generator 9)
Pulse energy
526.5/532 nm

40 mJ

35 mJ

30 mJ

20 mJ

10 mJ

351/355 nm

24 mJ

20 mJ

18 mJ

12 mJ

6 mJ

263/266 nm

12 mJ

10 mJ

10 mJ

6 mJ

3 mJ

Optional attenuator 10)
Transmission range

0.5 – 95 %

1 – 95 %

Laser head ( W×L×H)

390× 620 × 153 mm3

Power adapter (W×L×H) 11)

192 × 178 × 46 mm3 typical

Operating requirements

Cooling requirements

Air cooled

Ambient temperature

15 – 30 ºC

Relative humidity

10 – 80 % (non-condensing)

Mains voltage

90-230 VAC, single phase, 47-63 Hz 12)

Average power consumption

120 W

160 W

200 W

1. Due to continuous improvements all specifications are subject to change. Unless stated otherwise all specifications are measured at fundamental wavelength and maximum pulse repetition rate. The parameters marked typical are not specifications. They are indications of typical performance and will vary with each unit we manufacture.
2. Factory-set pulse repetition rate is fixed at max repetition rate shown in the table.
3. At FWHM level at fundamental wavelength, measured with 350 ps rise time photodiode. Short pulse duration version is available, with pulse duration shorter by approx 50%. Inquire for detailed specifications.
4. Measured during 30 seconds operation after laser warm-up.
5. Over 8 hour period after 20 minutes of warm-up when ambient temperature variation is less than ±2 °C.
6. Full angle measured at the 4σ level.
7. Beam diameter is measured 20 cm from laser output at the 4σ level.
8. In respect to falling edge of pump diode triggering pulse.
9. Q-DOUBLE is compatible with all models of stand-alone H-SMART harmonics generator. Pulse energies presented here are maximum values. Please refer to H-SMART harmonic generator datasheets for detailed specifications.
10. Motorized attenuator is build into the laser housing. Transmission can be changed remotely trough laser web-server control interface.
11. Power adapter dimensions might differ from indicated here, depending on model.
12. Laser can be powered from appropriate 12 or 28 VDC power source. Please inquire for details.