Laser Accessories Acousto-Optic Q-Switch​es

Acousto-Optic Q-Switch​es

The Acousto-optic Q-switch is a special modulator that introduces high repetition frequency loss in the laser cavity. Rather than being continuous-wave output, it causes the output to be composed of a series of light pulses with extremely high peak power and short pulse duration. The Q-switch allows efficient control of Q factor, initial pulse suppression, has high working efficiency, allow quick and easy adjustments, and have good stability. It is used in laser engraving, scribing, cutting, fine processing and other applications that require high laser intensities.

  • Acousto-Optic Q-Switch​es

Part No:
Operation Wavelength (μm)
Beam Diameter (mm)
Working Frequency (MHz)
RF Power Output (W)
Features
QAOQU-5
1.064
3~5
27
50
Water Cooled
QAO27-3
1.064
3~7
27
50 X 2
2 axes transducers, high working efficiency
QAO41-3
1.064
1~2
40
12
Conduction Cooled
QAQ70-7
1.064
1~2
70
12
Conduction Cooled

Wavelength: 1.064 μm
Voltage Standing Wave Ratio: ≤1.2 (Input Impedance: 50Ω)
Reflectivity: ≤0.2% (single side)
Protection: Automatic protection against high temperatures

  • RF Drivers

RF Driver For Acousto-Optic Q-Switch

Part No:
Working Frequency
Power Output (W)
Modulation Repetition Rate (kHz)
Features
Driver-QAOQU-5
27 ± 0.1
50 ± 3
1 ~ 50
Optional version with digital inputs available
Driver-QAO27-3
27 ± 0.1
50x2
1 ~ 50
Dual signal outputs
Driver-QAO41-3
40.68 ± 0.1
120
1 ~ 300
Compact design, DC input mode

The RF driver is designed as a control for the acousto-optic Q-switch. It modulates the radio frequency signal and outputs it to the Q-switch.

The driver has the following characteristics:

  • Quick modulation rate
  • Convenient controls
  • Good stability
  • Special features such as first pulse suppression, automatic
  • protection and alarm
Pulse Width: 120µs
Pulse Rise Time: ≤250ns
Pulse False Time: ≤120ns
First Pulse Suppression Time: 1 - 800µs
Output Impedance: 50Ω
Voltage Standing Wave Ratio: ≤1.2 (connected to 50Ω load)
Power Supply: AC 220V ± 15%
Modulation Control Inputs: Digital TTL
Effective Level of Laser Output: High/Low (Optional)
Protection: Automatic protection against high temperatures, open circuits, and short circuits.

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