DPSS High Energy Laser System

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GIGASHOT

Newly published data for the next generation high energy, short pulse, Nd:YAG laser system is now available.  The GIGASHOT DPSS high energy laser delivers 320 mJ of pulse energy in pulses that are less than 9 ns at 1064 nm. Integrated harmonic generation and wavelength separation options for 532 nm and 355 nm output are also available. This article contains specification data, beam images, beam quality data, and stability runs at 1064 nm, 532 nm and 355 nm.

The GIGASHOT is manufactured in three configurations producing laser light at 1064 nm, 532 nm, and 355 nm.  Figure 1 displays standard specifications for all configurations.  Custom repetition rate and peak energy specifications are available upon request.
gigashotspecsA homogenous pumping structure and depolarization compensation gives the laser excellent beam quality and stability at high (>100 Hz) repetition rates.  At rated pulse energies of > 320 mJ, configuration GS-320-QMI produces a far field Gaussian fit profile of > 90% (Figure 2). Figure 3 shows a near field burn mark of model GS-100-QMU producing 120 mJ of 355 nm laser light.  Figure 4 depicts an M² analysis (<2) for model GS-320-QMI (320 mJ @ 1064 nm).

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beam_imagesm2_1064nmAll configurations of the GIGASHOT laser produce a long term output stability rating of <2% rms.  Stability runs for GS-320-QMI (1064 nm) and GS-150-QMG (532 nm) are shown in Figure 5 while Figure 6 displays a stability run for GS-100-QMU (355 nm).
1064nm_532nm_stability

355nm_stability

The GIGASHOT is ideally suited for:

  • Ultrafast Laser Pumping
  • Spectroscopy and Remote Sensing
  • Material Processing
  • PIV (Particle Image Velocimetry)