A compact conduction-cooled acousto-optic Q-Switch for use in DPSS Nd:YAG & Nd:YVO4 lasers.The RF frequencies are 41MHz, 68MHz and 80MHz. Custom-design available upon request.
For the information on the principle of Q-switch pulsing, please click here .
A compact, conduction-cooled, acousto-optic Q-Switch for use in DPSS Nd:YAG & Nd:YVO4 lasers. Utilising the same manufacturing technology as our industry standard, high power QS24/27 series, these compact devices offer unrivalled reliability through superior optical quality and coatings.
Optimised for use with linearly polarised beams of up to 1.6mm diameter, offering loss modulation figures exceeding 85%. Utilising Crystal Quartz as the interaction material to give increased efficiency and high thermal transfer properties allowing use at RF powers of up to 15W, conduction-cooled.
This Q-Switch can also be customised to feature alternative frequencies, active apertures and housing designs, our team of scientists will be pleased to discuss variations with you.
| Model Number | QS041-10G-SO3 | QS041-10G-IN2 |
| Interaction Material | Crystal Quartz | |
| Wavelength | 1047 to 1064nm | |
| Polarisation | Linear, vertical to base | Linear, vertical to base |
| Anti-Reflection Coating | < 0.2% per surface | |
| Damage Threshold | ＞ 1GWcm2 | |
| Transmission (single pass) | ＞ 99.6% | |
| Frequency | 40.68MHz | |
| VSWR | < 1.2:1 (50Ω input impedance) | |
| Active Aperture | 1.6mm | 1.8mm |
| Acoustic Mode | Compressional | |
| Rise-Time / Fall-Time | 109ns/mm | 113ns/mm |
| Loss Modulation | ＞ 85% | ＞ 85% |
| Beam Separation | 7.3mrad | |
| Acceptance Angle (full) | 6.1mrad | |
| RF Power Rating | 20W CW | |
| Cooling | Conduction through base | |
| Dimension | 35x35x24mm | 39.5x35x22mm |
| Q-switch driver | R39041-20DMFPS-SC | |
| Model No | I-QS041-1.8C10G-4-GH21 | I-QS041-1.6C10G-4-SO6 |
| Device | AO Q-Switch | AO Q-Switch |
| Interaction material | Crystal Quartz | Crystal Quartz |
| Wavelength | 1047 to 1064nm | 1064nm |
| Damage threshold | ＞ 1GW/cm2 | ＞ 1GW/cm2 |
| AR coating reflectivity | < 0·2% per surface | < 0·2% per surface |
| Transmission | ＞ 99·6% | ＞ 99·6% |
| Frequency | 40.68MHz | 40.68MHz |
| Optical polarisation | Linear, vertical to base | Linear, vertical to base |
| Active aperture | 1.8mm | 1.6mm |
| Acoustic mode | Compressional | Compressional |
| Rise-time (10-90%) | 113ns/mm | 113ns/mm |
| Loss Modulation | ≥ 85% | ≥ 85% |
| RF Power | 20W (Max) | 20W (Max) |
| Model | 33041-20-1.5-I-TB |
| Interaction Material | Crystal Quartz |
| Wavelength | 1064nm |
| Damage Threshold | ＞10MWcm2 |
| Transmission (single pass) | ＞99% |
| Frequency | 80MHz |
| VSWR | <1.2:1 (50Ω input impedance) |
| Active Aperture | 1.5mm |
| Acoustic Mode | Longitudinal |
| Rise-Time / Fall-Time | 115ns/mm |
| Loss Modulation | ＞90% with linear polarization; ＞80% with random polarisation |
| Beam Angle | 7.5mrad |
| RF Power Rating | 20W, CW |
| Cooling | Conduction through base |
| RF Driver | R39080-20DMzzz-SC |
| Device | AO Q-Switch |
| Model No | QS068-4J-xxx |
| Interaction material | Fused Silica |
| Wavelength | 1540nm |
| Damage threshold | ＞500MW/cm2 |
| AR coating reflectivity | < 0.2% per surface |
| Transmission | ＞ 99.6% |
| Frequency | 68MHz |
| Optical polarisation | Random |
| Active aperture | 1.0mm |
| Acoustic mode | Shear |
| Rise-time | 120ns |
| Modulation Bandwidth (3dB) | 4.2MHz |
| Separation Angle | 28mrad |
| Diffraction Efficiency | ＞10% @ 6W |
| Maximum recommended RF Power | 10W |
| Cooling | Conduction cooled through base |
| Q-switch driver | N39068-10DSA05 |
We present probably the smallest, conduction-cooled, acousto-optic Q-Switch currently in production anywhere in the world. Specifically designed for use in miniature, short-pulse, low power, DPSS lasers, the tiny size of this device facilitates Q-Switching of the shortest cavities.
Utilising a highly efficient crystalline interaction material, greater than 85% loss modulation can be achieved without the need for active cooling - just bolt the Q-Switch to the laser rail and switch on!
Operating at 80MHz carrier frequency, the diffracted beams are sufficiently separated for most short cavities and pulse repetition rates of 100kHz or more are possible. - DPSS systems, polarisation insensitive - Miniature size, conduction-cooled - 1.0mm active aperture
| Model | QS080-2G-3D1 | I-QS080-1.5C10G-4-SO12 |
| Interaction Material | Tellurium Dioxide | Crystal Quartz |
| Wavelength | 1047 to 1064nm | 1064nm |
| Polarization | Insensitive | Random or linearly polarised |
| Anti-Reflection Coating | <0.2% per surface | < 0·2% per surface |
| Damage Threshold | ＞10MWcm2 | ＞ 1GW/cm2 |
| Transmission (single pass) | ＞99.5% | ＞ 99·6% |
| Frequency | 80MHz | 80MHz |
| VSWR | <1.2:1 (50Ω input impedance) | <1.2:1 (50Ω input impedance) |
| Active Aperture | 1.0mm | 1.5mm |
| Acoustic Mode | Compressional | Compressional |
| Rise-Time / Fall-Time | 153ns/mm | 113ns/mm |
| Loss Modulation | ＞85% at 3W (typical) | ＞85% (polarised) ＞70% (unpolarised) |
| Beam Angle | 20mrad | 14.9mrad |
| RF Power Rating | 3W, CW | 20W |
| Cooling | Conduction through base | Conduction through base |
| RF Driver | R39080-3DMzzz-SC | |
| Model | 97-03277-01 | 97-03278-02 | 97-03300-01 | 97-03306-01 |
| Interaction Material | Crystal Quartz | |||
| Acoustic Velocity | 5.74mm/µs | |||
| Active Aperture* | 1 mm | 1 mm | 1.5 mm | 2.0 mm |
| Center Frequency | 80MHz | |||
| VSWR | <1.2:1 (50Ω input impedance) | |||
| Wavelength | 1064nm | |||
| Insertion Loss | Max 1% | |||
| Reflectivity | Max 0.1% per surface | |||
| AR Coating | MIL-C-48497 | |||
| Damage Threshold | 500MW/cm2 | |||
| Polarization | Linear, vertical to the base | |||
| RF Power rating | 12W | 3.5W | 20W | 25W |
| Beam Separation | 14.8 mrad | |||
| Rise / Fall time | 50nsec | |||
| Loss Modulation | 85% | 50% | 85% | 85% |
I-QS080 is an ultra-compact conduction-cooled Acousto-Optic Q-Switch, ideally suited to short cavity end pumped Nd:YAG & Nd:YVO4 lasers. Utilising top grade Crystal Quartz for increased efficiency & thermal stability, with high quality optical finishing & high damage threshold antireflection coatings to provide high damage threshold & low insertion loss. In addition to the specifications indicated, we also offer alternative wavelengths, RF frequencies, active apertures & an extensive range of mechanical housing configurations. We also offer full custom design & manufacturing, enabling ourcustomers to achieve the perfect solution. Our scientists and engineers are available to assist in selecting the most appropriate model of Q-Switch and also RF driver for your application.
General Specification:
| Model | I-QS080-0.5C10G-8-GH48 | I-QS080-1C10G-8-GH28 |
| Interaction material: | Crystal Quartz | Crystal Quartz |
| Wavelength: | 1064nm | 1030 to 1064nm |
| Damage threshold: | ＞ 1GW/cm2 | ＞ 1GW/cm2 |
| AR coating reflectivity: | < 0·2% per surface | < 0·2% per surface |
| Transmission: | ＞ 99·6% | ＞ 99·6% |
| Frequency: | 80MHz | 80MHz |
| Optical polarisation: | Linear, vertical to base | Linear, vertical to base |
| Active aperture: | 0.5mm | 1.0mm |
| Acoustic mode: | Compressional | Compressional |
| Separation angle: | 14.9mrad | 14.9mrad |
| Rise-time (10-90%): | 113ns/mm | 113ns/mm |
| Loss modulation: | ＞= 85% | ＞= 85% |
| RF power: | 10W (max) | 10W (max) |
| Storage temperature: | -20 to +70degC | -20 to +70degC |
| Dimension | 42x12x15mm | 46x22x20mm |
| Model | I-M080-2C10G-4-AM3 | I-M080-2.5C10G-4-AM3 |
| Interactive Material | Crystal Quartz | Crystal Quartz |
| Operating Wavelength | 1030-1064nm | 1030-1064nm |
| Damage threshold | ＞1GW/cm2 | ＞1GW/cm2 |
| AR coating reflectivity | <0.3% per surface | <0.3% per surface |
| Transmission | ＞99.4% | ＞99.4% |
| Acoustic Frequency | 80MHz | 80MHz |
| VSWR | <1.2:1 at 0dBm | <1.2:1 at 0dBm |
| Optical polarization | Linear (vertical to base) | Linear (vertical to base) |
| Active aperture | 2mm | 2.5mm |
| Acoustic mode | Compressional | Compressional |
| Separation angle | 14.9mrad | 14.9mrad |
| Rise-time (10-90%) | 113ns/mm | 113ns/mm |
| Diffraction efficiency | ＞85% at 15W RF | ＞80% at 15W RF |
| Max RF power | 15W | 15W |
| Housing | Aluminium | Aluminium |
| Cooling | Conduction | Conduction |
| Model | 97-03388-03R1 (5080-296) | 97-03388-02R2 (5041-296) |
| Interactive Material | Crystal Quartz | Crystal Quartz |
| Operating Wavelength | 1064nm | 1064nm |
| Damage threshold | ＞500MW/cm2 | ＞500MW/cm2 |
| AR coating reflectivity | <0.2% per surface | <0.2% per surface |
| Transmission | ＞99.6% | ＞99.6% |
| Acoustic Frequency | 80MHz | 40.48MHz |
| VSWR | <1.2:1 | <1.2:1, 50Ohm |
| Optical polarization | Random or linear (vertical to base) | Random or linear (vertical to base) |
| Active aperture | 1.5mm | 1.5mm |
| Acoustic mode | Compressional | Compressional |
| Separation angle | 14.8mrad | 7.6mrad |
| Rise-time (10-90%) | 113ns/mm | 113ns/mm |
| Diffraction efficiency | ＞85% (vertical/linear polarization)) ＞70% (Random/linear polarization) |
＞85% (vertical/linear polarization)) ＞70% (Random/linear polarization) |
| Max RF power | 20W | 20W |
| Housing | 97-03388 | 97-03388 |
There are too many types of Q-switches with various laser wavelengths, RF frequencies and active apertures and please feel free to contact us via email once you have a special application or requirements.
A leading supplier and manufacturer of a wide range of photonics products such as lasers,laser parts & machines.
Office: 18 South Liu Fang Yuan Road,Sintec Industrial Park, Wuhan Hubei, 430205 PR China
Tel: 18162698939
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Email: sales@SintecOptronics.cn
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