Compact Noise Eater for amplitude stabilization of a laser beam

The NoiseEater is a compact device for fast stabilization of a laser beam’s intensity, using an EOM or an AOM. The NoiseEater takes care of both the processing of a photo-diode input signal and the control of the EOM or AOM actuator.

  • Cancellation of intensity noise
  • Controlled laser power setting or switching
  • Fixed or automatic set point adjustment
  • For use with AOM, EOM or micro stepping motor

The NoiseEater contains the following components:  

  • Photo diode amplifier (PDA)
  • Regulator section with PI-regulator
  • Optional: VCO (voltage controlled oscillator) and modulator as well as HF-amplifier to control an AOM
  • Optional: drivers for HV or RF, resp