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Stallion Industry Standard AO Q-Switch product image

I-QS041-5C10V5-x5-ST3 Q-Switch

For use at the wavelength of 2100 nm, with an active aperture up to 4 mm, an operating frequency of 27.12 MHz, and with water-cooling.

Full Product Description
1900–2100 nm
Operating Frequency:
40.68 MHz
Active Aperture:
5.0 mm
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Product description

Combining optimum grade crystalline quartz, high-quality optical finishing, high-grade anti-reflection coatings, with novel acoustic management and optomechanical design techniques, our q-switches achieve exceptional thermal management while maintaining superior beam quality and high optical throughput.

Key features

  • High Damage Threshold
  • Improved thermal management
  • Superior beam quality
  • Superior corrosion resistance [Water Cooled version]
  • Stainless steel cooling channels [Water Cooled version]


Interaction materialCrystal Quartz
Wavelength1900–2100 nm
Operating Frequency40.68 MHz
AR coating reflectivity< 0.5% per surface
Damage threshold> 500 MW cm²
Transmission> 99.0% (single pass)
Acoustic modeCompressional
Active Aperture5.0 mm
VSWR< 1.2:1 (<1.4:1 at 50 W RF power)
Loss modulation70%
RF powerMax: 50 W
Water flow rate> 0.2 l / minute
Water-cooling channel materialStainless steel 316
Recommended water temperature+22° C to +32° C
Thermal switch cut-off+65° C +/- 5° C
Storage temperature-20° to +70° C