Best Acousto-optic Q-switche
2025-08-18
ModuOptik has a complete solution can be applied to polarized(Brewster angle cut)or non-polarized lasers and can be adapted to lamp pumped lasers and LD pumped lasers.Our AOQS product wavelength range from UV to far infrared,diameter up to 12 mm.AOQS selects AO materials with excellent quality (Fused quartz,Crystalline quartz,Gecrystal,etc.),which can be designed into shearand longitudinal wave mode according to needs.High quality optical polishing,anti-reflective coatings with low reflection and high damage threshold,reliable welding techniques,and novel acoustic management and optical mechanical design techniques enable excellent thermal management, maintaining excellent beam quality and high transmittance.
ModuOptik can provide AOQS-matched series of RF drivers,you can choose the corresponding RF driver according to theproduct specifications.
| Product Code (Download specification) | Working wavelength (nm) | Active Aperture (mm) | Operating Frequency(MHz) | Loss Modulation | Optical Material | Heat dissipation method |
| Q0002-QL080-015-1064 | 1064 | 1.5 | 80 | >85% | Crystalline quartz | Conduction-cooled |
| Q0003-QL080-015-1064 | 1064 | 1.5 | 80 | >85% | Crystalline quartz | Conduction-cooled |
| Q0015-FL027-040-1064 | 1064 | 4 | 27.12 | >90% | Fused quartz | Water cooling |
| Q0016-FL041-050-1064 | 1064 | 5 | 40.68 | >90% | Fused quartz | Water cooling |
| Q0017-QL080-030-1064 | 1064 | 3 | 80 | >85% | Crystalline quartz | Conduction-cooled |
| Q0018-QL041-015-1064 | 1064 | 1.5 | 40.68 | >85% | Crystalline quartz | Conduction-cooled |
| Q0019-QL068-030-1064 | 1064 | 3 | 68 | >85% | Crystalline quartz | Conduction-cooled |
| Q0020-FL027-060-1064 | 1064 | 6 | 27.12 | >90% | Fused quartz | Water cooling |
| Q0021-FS041-060-1064 | 1064 | 6 | 40.68 | >86% | Fused quartz | Water cooling |
| Q0022-QL068-060-1064 | 1064 | 6 | 68 | >85% | Crystalline quartz | Conduction-cooled |
| Q0023-QL080-010-1064 | 1064 | 1 | 80 | >85% | Crystalline quartz | Conduction-cooled |
| Q0027-QL080-015-1064 | 1064 | 1.5 | 80 | >85% | Crystalline quartz | Conduction-cooled |
| Q0029-QL080-015-1064 | 1064 | 1.5 | 80 | >85% | Crystalline quartz | Conduction-cooled |
| Q0030-QL080-012-1064 | 1064 | 1.2 | 80 | >85% | Crystalline quartz | Conduction-cooled |
| Q0031-QL041-015-1064 | 1064 | 1.5 | 40.68 | >85% | Crystalline quartz | Conduction-cooled |
| Q0032-QL080-025-1064 | 1064 | 2.5 | 80 | >85% | Crystalline quartz | Conduction-cooled |
| Q0033-QL068-030-1030 | 1030 | 3 | 68 | >85% | Crystalline quartz | Conduction-cooled |
| Q0034-QL080-012-1064 | 1064 | 1.2 | 80 | >85% | Crystalline quartz | Conduction-cooled |
| Q0035-QL041-015-1064 | 1064 | 1.5 | 40.68 | >85% | Crystalline quartz | Conduction-cooled |
| Q0036-FS041-060-2000 | 2000 | 6 | 40.68 | >70% | Fused quartz | Water cooling |
| Q0037-FS068-060-1064 | 1064 | 6 | 68 | >85% | Fused quartz | Water cooling |
| Q0038-QL080-050-1030 | 1030 | 5 | 80 | >85% | Crystalline quartz | Water cooling |
| Q0040-FL027-020-1064 | 1064 | 2 | 27.12 | >90% | Fused quartz | Water cooling |
| Q0041-QL068-025-1880 | 1880 | 2.5 | 68 | >85% | Crystalline quartz | Water cooling |
| Q0042-QL080-015-1064 | 1064 | 1.5 | 80 | >85% | Crystalline quartz | Conduction-cooled |
| Q0043-QL041-040-2000 | 2000 | 4 | 40.68 | >70% | Crystalline quartz | Water cooling |
| Q0044-QL041-012-1064 | 1064 | 1.2 | 40.68 | >85% | Crystalline quartz | Conduction-cooled |
| Q0045-QL080-010-1540 | 1540 | 1 | 80 | >80% | Crystalline quartz | Conduction-cooled |
| Q0046-FS027-020-1064 | 1064 | 2 | 27.12 | >86% | Fused quartz | Water cooling |
| Q0047-TL080-012-1030 | 1030 | 1.2 | 80 | >85% | Tellurium dioxide | Conduction-cooled |
| Q0048-QL080-010-1064 | 1064 | 1 | 80 | >85% | Crystalline quartz | Conduction-cooled |
| Q0049-FL041-040-1064 | 1064 | 4 | 40.68 | >90% | Fused quartz | Water cooling |
| Q0050-FS041-040-1064 | 1064 | 4 | 40.68 | >86% | Fused quartz | Water cooling |
| Q0051-FS041-050-1064 | 1064 | 5 | 40.68 | >86% | Fused quartz | Water cooling |
| Q0052-FL027-020-1064 | 1064 | 2 | 27.12 | >90% | Fused quartz | Water cooling |
| Q0053-FL041-020-1064 | 1064 | 2 | 40.68 | >90% | Fused quartz | Water cooling |
| Q0054-QL060-040-1030 | 1030 | 4 | 60 | >86% | Crystalline quartz | Water cooling |
| Q0056-QL080-030-1064 | 1064 | 3 | 80 | >85% | Crystalline quartz | Conduction-cooled |
| Q0057-QL080-010-1064 | 1064 | 1 | 80 | >85% | Crystalline quartz | Conduction-cooled |
| Q0058-QL080-015-1064 | 1064 | 1.5 | 80 | >85% | Crystalline quartz | Conduction-cooled |
| Q0059-QL080-010-1535 | 1535 | 1 | 80 | >85% | Crystalline quartz | Conduction-cooled |
| Q0060-QL080-015-1064 | 1064 | 1.5 | 80 | >85% | Crystalline quartz | Conduction-cooled |
| Q0061-QL080-015-1064 | 1064 | 1.5 | 80 | >85% | Crystalline quartz | Conduction-cooled |
| Q0062-QL080-010-1064 | 1064 | 1 | 80 | >85% | Crystalline quartz | Conduction-cooled |
| Q0063-QL041-015-1064 | 1064 | 1.5 | 40.68 | >85% | Crystalline quartz | Conduction-cooled |
| Q0065-FL027-030-1064 | 1064 | 3 | 27.12 | >90% | Fused quartz | Water cooling |
| Q0066-QL041-050-2000 | 2000 | 5 | 40.68 | >70% | Crystalline quartz | Water cooling |
| Q0067-FS050-030-1064 | 1064 | 3 | 50 | >86% | Fused quartz | Water cooling |
| Q0068-QL080-012-1064 | 1064 | 1.2 | 80 | >85% | Crystalline quartz | Conduction-cooled |
| Q0069-QL080-015-1064 | 1064 | 1.5 | 80 | >85% | Crystalline quartz | Conduction-cooled |
| Q0070-TL120-010-1064 | 1064 | 1.0 | 120 | >35% | Tellurium dioxide | Conduction-cooled |
Acousto-optic Q-switches serve as critical components in pulsed laser systems, enabling precise control over laser output through rapid modulation of the optical cavity's Q-factor. These devices utilize the acousto-optic effect, where high-frequency acoustic waves create a periodic refractive index variation in a crystalline material like tellurium dioxide (TeO₂) or fused quartz. When an RF signal drives the attached transducer, it generates ultrasonic waves that diffract the laser beam, effectively acting as an optical shutter. This diffraction loss keeps the cavity's Q-factor low during the pumping phase, allowing energy storage in the gain medium. Upon sudden termination of the RF signal, the Q-switch "opens," releasing the stored energy as an intense, short-duration laser pulse typically ranging from nanoseconds to microseconds.
The performance advantages of acousto-optic Q-switches include exceptional timing precision with jitter below 1 ns, repetition rates exceeding 100 kHz, and minimal insertion loss (usually <10%). Their all-solid-state design offers superior reliability compared to mechanical alternatives, with no moving parts to wear out. Modern units achieve diffraction efficiencies exceeding 95% through optimized transducer designs and anti-reflection coatings. Temperature-stabilized versions maintain consistent performance despite environmental fluctuations, critical for industrial applications.
These Q-switches find extensive use in laser marking systems where their high repetition rates enable fine feature resolution, and in scientific lasers requiring precise pulse synchronization. Medical lasers benefit from their ability to generate stable pulse energies for procedures like tattoo removal. The technology's fast switching capability also proves valuable in lidar systems and nonlinear optics experiments. Recent advancements include integrated driver electronics for compact designs and broadband versions supporting tunable lasers. With continuous improvements in RF power handling and thermal management, acousto-optic Q-switches remain indispensable for applications demanding high-speed, high-fidelity laser pulse control.
Real-time Blog
08-18
2025
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