Motorized Attenuators
Laser power/energy attenuators
Drop-in attachable to the laser body attenuators for 1st, 2nd, 3rd, 4th or 5th harmonics of Nd:YAG or Nd:YLF lasers.
Up to 98% maximum transmission.
Precise transmission control by stepper motor in microstepping mode (12800 steps/rotation).
Transmission adjustment accuracy <0.15%.
Remote control via common with laser Ethernet interface.
Optional stand-alone version for mounting on optical table.
Optional side port transforms attenuator to variable beam splitter.
제조사 Quantum Light Instruments
가격 TBD
문의 02-3461-1103
제품 특징

Attenuators technical details

Pulse energy of our Q-switched lasers can be conveniently lowered from maximum value by reducing current of pump diode. When less pump light is stored in lasing media, laser emits pulses with lower energy.
Above described method of pulse energy attenuation has its pros and cons. It is cost-effective, simple to implement, however, pulse energy change affects also other important laser beam parameters like pulse-to-pulse stability, beam divergence, pulse duration. For example, pulse-to-pulse energy stability of harmonics wavelengths might be more than 2 times worse at lower than nominal fundamental pulse energy.
AT series attenuators allows to attenuate laser pulse energy without changes in beam parameters.
Attenuator consist of polarizer and waveplate. By changing of input beam polarization, transmission of beam can be changed for maximum to minimum value. Minimum transmission value depends on input beam polarization state and polarizer extinction ratio and typically is approx. 1 %.
Maximum possible transmission is determined by reflection and absorption losses of optical components.
Several attenuators can be used in series if larger dynamic range is required.
Attenuator transmission can be controlled trough common with laser Ethernet interface. API is provided for integration into user software.


Click here to download dimensional drawing.