Water-Cooled Acousto-Optic Q Switch I-QS027-4S4G-U5-ST1
The I-QS027-4S4G-U5-ST1 water-cooled fused-silica acousto-optic Q-switch is designed for high-power lamp-pumped or diode-pumped Nd:YAG lasers. Its1064 nm wavelength,27.12 MHz operating frequency, and4 mm clear aperture enable stable, reliable high-power pulse modulation and Q-switching. Part of the G&H 'Muma' series (source series name), it combines high-quality fused-silica acousto-optic material, precision optical processing, and internally developed high-performance AR coatings. High transmission, low insertion loss, excellent laser damage threshold, and thermal stability suit high-average-power operation. Advanced acoustic management and optomechanical design maintain excellent beam quality and stable optical performance at high power. Model designation:I-QS027-4S4G-U5-ST1 (200307-0086/01).
Overview
Specifications
| Parameter | Value |
|---|---|
| Acousto-optic Medium | Fused quartz |
| Wavelengths | 1064 nm |
| Operating Frequency | 27.12 MHz |
| Clear Aperture Dimension | 4 mm |
| Polarization | Random |
| Spectral Range | Near Infrared |
| Single-Surface Antireflection Coating Reflectance | ≤ 0.2% |
| Laser Damage Threshold | >1 GW/cm² |
| Single-Pass Transmittance | >99.6% |
| Static Insertion Loss [50 W Laser Power] | ≤6% (at 50 W laser power) |
| Standing Wave Ratio | <1.2:1 |
| Standing Wave Ratio [50 W RF Power] | <1.4:1 |
| RF Power [Longitudinal wave] | 50 W |
| RF Power [Shear] | 100 W |
| Cooling Method | Water Cooling |
| Water-Cooling Channel Material | 316 stainless steel |
| Minimum Water Flow Rate | >190 cc/min |
| Recommended Water Temperature | +22℃ ~ +32℃ |
| Overtemperature Protection Temperature | +55℃ ± 5℃ |
| Storage Temperature | 0℃ ~ +50℃ |
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