[EKSPLA]
Nanosecond High Energy Laser Systems

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Description

Ekspla offers wide range of high energy Nd:Glass laser systems. Typically Nd:Glass laser comprise SLM diode pumped master oscillator, pre-amplifier, pulse shaper and main lamp pumped amplifiers.

Feature

  • Front end options
    –    Diode pumped SLM or MM master oscillator featuring excellent stability, live time and maintenance-free operation based on Nd:glass or Nd:YLF
    –    Temporally shaped seeder / regenerative amplifier configuration allowing application of smoothing technics
    –    Wave front correction system based on DFM
  • Optional SBS compressor ensuring high contrast pulses and controllable pulse duration
  • Flashlamp / LD pumped pre-amplifier
  • Up to Ø60 mm aperture Nd:glass power amplifiers
  • Laser protection by Faraday isolators preventing damage of laser rods by back-reflected light
  • Optimized design for maximum pulse energy extraction
  • Separately controlled PFN circuits for each flash lamp
  • Diagnostics and monitoring of system status based on microprocessor controller
  • Software guide for step-by-step performance check at designated control points
  • Optional second and third harmonics generators

Performance

Specification
ParameterValue
Center wavelength 1053 – 1060 nm
Pulse width 500 ps – 20 ns
Max pulse energy single channel 150 J
Beam spatial profile (near field) “Top Hat” across 80% of beam cross-section 
(beam local intensity fluctuation max ±20% from the average intensity)
Pulse repetition rates depending on system configuration from 1 shot in 1 min to 1 shot in 20 min for output energies > 10 J
Shot to shot stability below 2.0% rms @ fundamental in single channel configuration
Linewidth > 0.02 cm⁻¹ @ 2 ns for single longitudinal mode (SLM), > 1 cm⁻¹ @ 4 ns for multimode (MM)
Pre-pulse contrast better than 1 : 10⁵
Polarization contrast > 100 : 1
Output isolation from 
back-reflected light
> 500 : 1 (Faraday isolator contrast)
Optical pulse jitter typical > 0.2 ns RMS, optional > 10 ps RMS
Flashlamp lifetime 2×10⁵ shots typical (typically > 3000 hours of non-stop operation at PRR 1 shot/minute)
Pump diode lifetime > 10 000 hours typical

 


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