Free Space Acousto-Optic Q-Switches


Brimrose offers the most complete line of Acousto-Optic Q-switching systems for industrial and laboratory applications. The Brimrose free space Q-switches are designed for the highest conversion efficiency of RF energy into acoustic energy by attaching the transducer to the crystal with an advanced vacuum metallized process.

Q-switches are special modulators designed for use inside laser cavities. They are fabricated from high optical quality Fused Quartz, Flint Glass, and Tellurium Dioxide, or other acousto-optic materials with Brewster cut optical faces or durable hard oxide AR coatings for high optical power applications.


  • High Damage Threshold
  • High Laser Peak Powers
  • Lower Noise Performance
  • Up to 80 MHz RF Frequency
  • Analog Light Intensity Modulation
  • Digital Switching On/Off
  • Water or Thermoelectrically cooled
  • Custom Configurations Available


  • Laser Marking, Laser Cutting
  • Pulsed Holography
  • Lithography
  • 3D Microfabrication
  • Medical (Surgery)
  • Optical Data Storage
  • OEM Designs

Brimrose Free Space Acousto-Optic Devices


  • MHz to 3 GHz Frequency Shift Ranges
  • High Modulation Bandwidth up to 400 MHz
  • Fast Modulation Speed <5 nsec Rise Time
  • High Diffraction Efficiency
  • UV to LWIR Wavelength Ranges
  • High Optical Damage Threshold