Ultraviolet Multichannel Acousto-Optic Modulator AOMC 220-4
AOMC 220-4 is a 4-channel acousto-optic modulator for the 350–365 nm wavelength range, operating at 190–250 MHz, with rise/fall times as short as 16 ns and an effective aperture of 0.24 mm. It is designed for high-speed, multi-channel beam control in ultraviolet laser systems, enabling rapid beam gating, pulse picking, and precise intensity modulation for synchronized multi-beam control and high-speed ultraviolet laser applications. The modulator uses a high-quality crystalline quartz acousto-optic medium, precision optical fabrication, high-performance antireflection (AR) coatings, optimized acoustic management, and optomechanical design. Along with excellent thermal management, it provides high optical transmission, excellent beam quality, and stable multi-channel modulation performance and meets high-reliability requirements under continuous operation. AOMC 220-4 is widely used in ultraviolet laser micromachining, semiconductor manufacturing, fluorescence excitation, confocal microscopy, biomedical imaging, spectral analysis, optical testing and measurement, laboratory photonics, and research laser systems, providing a high-speed, highly stable multi-channel beam modulation solution for 350–365 nm ultraviolet laser applications.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Wavelengths | 351–365 nm |
| Acousto-optic Medium | Quartz Crystal |
| Acoustic Velocity | 5.74 mm/μs |
| Operating Frequency | 220 MHz |
| Clear Aperture Dimension | 0.5 mm × 0.24 mm |
| RF Bandwidth | 60 MHz |
| Input Impedance | 50 Ω |
| Standing Wave Ratio | ≤1.5:1 |
| Insertion Loss | ≤ 3% |
| Antireflection Coating | MIL-C-48497 |
| Damage Threshold | 200 MW/cm² |
| Extinction Ratio | ≥ 100:1 |
| Polarization | Perpendicular to the acoustic wave direction (90°) |
| RF Power [Wavelength 351 nm] | 2 W |
| Bragg Angle [Wavelength 351 nm] | 6.7 mrad |
| Beam Separation Angle [Wavelength 351 nm] | 13.4 mrad |
| RF Power [Wavelength 365 nm] | 2 W |
| Bragg Angle [Wavelength 365 nm] | 7 mrad |
| Beam Separation Angle [Wavelength 365 nm] | 14 mrad |
| Minimum Diffraction Efficiency [Beam Diameter 110 μm； Wavelength 351 nm] | ≥ 83% |
| Rise Time [Beam Diameter 110 μm； Wavelength 351 nm] | 16 ns |
| Minimum Diffraction Efficiency [Beam Diameter 110 μm； Wavelength 365 nm] | ≥ 83% |
| Rise Time [Beam Diameter 110 μm； Wavelength 365 nm] | 16 ns |
| Diffraction Efficiency [Special Test] | min:66 % |
| Cross Talk [Special Test] | min:25 dB |
Key Features
Datasheet
Supplier Information
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