Ultraviolet Acousto-Optic Modulators AOMO 3175-1999
AOMO 3175-1999 is an acousto-optic modulator designed for precision laser control in the 340–365 nm ultraviolet/violet band. Its quartz-crystal acousto-optic medium combines low optical loss, high diffraction efficiency and high-contrast modulation for beam control in ultraviolet and violet laser systems. Optimized for the 340–365 nm wavelength range, it supports high-speed laser switching, pulse picking, beam gating and laser-intensity modulation, providing clean, stable optical modulation. A compact active aperture, antireflection-coated optics and optimized mechanical construction maintain efficient acousto-optic interaction while reducing insertion loss and improving system stability and long-term reliability. The excellent ultraviolet transmission and stable performance of quartz crystals make AOMO 3175-1999 particularly suitable for micromachining, semiconductor manufacturing, precision processing, scientific research and analytical instruments, providing high-performance acousto-optic modulation for ultraviolet and violet laser applications.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Diffraction Efficiency [Operating Wavelength 355 nm； Beam Diameter 500 μm] | >85% |
| Rise Time [Operating Wavelength 355 nm； Beam Diameter 500 μm] | 59 ns |
| Diffraction Efficiency [Operating Wavelength 355 nm； Beam Diameter 1000 μm] | >90% |
| Rise Time [Operating Wavelength 355 nm； Beam Diameter 1000 μm] | 117 ns |
| Applicable Wavelength Band | Ultraviolet-Violet Light |
| Minimum Operating Wavelength | 310 nm |
| Maximum Operating Wavelength | 410 nm |
| Center Frequency | 175 MHz |
| Clear Aperture Dimension | 1.5 mm × 1.5 mm |
| Rise/Fall Time | 116 ns |
| Acousto-optic Medium | Quartz Crystal |
| Acoustic Velocity | 5.74 mm/μs |
| RF Bandwidth [-10 dB Return Loss] | 20 MHz(@ -10 dB Return Loss ) |
| Input Impedance | 50 Ω |
| Standing Wave Ratio | ≤ 1.2:1 |
| Insertion Loss | ≤ 1% |
| Single-Surface Reflectance | ≤ 0.3% |
| Antireflection Coating | MIL-C-48497 |
| Extinction Ratio | ≥1000:1 |
| Polarization | At a 90° angle to the mounting plane |
| Rated RF Power [Wavelength 355 nm] | < 2.5 W |
| Bragg Angle [Wavelength 355 nm] | 5.4 mrad |
| Beam Separation Angle [Wavelength 355 nm] | 10.8 mrad |
Key Features
Datasheet
Supplier Information
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