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Air-Cooled Q-switches
- Small and Tough
- Reliable
- Ease for integration
- Easy to operate
PRODUCT DESCRIPTION
QS041-10G-xxyy series Q-switches
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.
- DPSS Nd:YAG / Nd:YVO4, linearly polarized
- Compact conduction cooled, crystal quartz
- 2mm active aperture
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) |
2. Air-cooled Q-switchQS068-4J-xxx
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 |
3. Air-cooled Q-switch QS080-2G-3D1
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
Interaction Material |
Tellurium Dioxide |
Wavelength |
1047 to 1064nm |
Polarisation |
Insensitive |
Anti-Reflection Coating |
<0.2% per surface |
Damage Threshold |
>10MWcm-2 |
Transmission (single pass) |
>99.5% |
Frequency |
80MHz |
VSWR |
<1.2:1 (50Ω input impedance) |
Active Aperture |
1.0mm |
Clear Aperture |
1.4mm |
Acoustic Mode |
Compressional |
Rise-Time / Fall-Time |
153ns/mm |
Loss Modulation |
>85% at 3W (typical) |
Beam Separation |
20mrad |
Acceptance Angle (full) |
12mrad |
RF Power Rating |
3W, CW |
Cooling |
Conduction through base |
Dimension | 19x9.6x16.5mm |
RF Driver |
R39080-3DMzzz-SC |
4. Ultra compact conduction cooled Q-Switches:
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 our customers 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.
Key Features: -> Compact package -> Conduction-cooled -> High damage threshold -> High efficiency -> Custom configurations available |
Application examples: -> Material processing: -> Marking -> Engraving -> Scribing -> Surface treatment |
Model
I-QS080-0.5C10G-8-GH28
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
5. Low Power Q-Switches for polarized or random polarized lasers:
Spectral Range (nm) |
Q-Switch Mode |
Recommended Driver Model Number |
Loss Modulation (% @ Watts) @1064nm Polarization |
Active Aperture (mm) |
Center Frequency (MHz) |
Rise Time (ns/ mm beam dia.) |
Optical Power Density/ (cm2) Ave./Pk |
Interaction Material |
1064 |
33027-10-1.5-I |
39027-10DS 39027-10DM |
80 @ 10 Linear Perpendicular 65 @ 10 Random |
1.5 |
27.12 |
115 |
50KW/500MW |
Crystal Quartz |
1064 |
33041-10-1.5-I |
39041-10DS 39041-10DM |
72 @ 10 Linear Perpendicular 45 @10 Random |
1.5 |
40.68 |
115 |
50KW/500MW |
Crystal Quartz |
1064 |
33041-20-1.5-I-TB |
39041-20DMFPS-SC |
90 @ 20 Linear Perpendicular 80 @20 Random |
1.5 |
40.68 |
115 |
50KW/500MW |
Crystal Quartz |
1064 |
33080-10-1-I |
39080-10DS 39080-10DM |
80 @ 10 Linear Perpendicular 60 @ 10 Random |
1 |
80 |
115 |
50KW/500MW |
Crystal Quartz |
1064 |
33027-25-3-BR |
39027-30DSA05 39027-30DMA05 |
75 @ 25 Linear Perpendicular |
2 |
27.12 |
175 |
50KW/500MW |
Fused Silica |
6. Low Power Q-Switches for random polarized lasers:
Spectral Range (nm) |
Q-Switch Model |
Recommended Driver Model Number |
Loss Modulation (%@Watts) @1064nm Polarization |
Active Aperture (mm) |
Center Frequency (MHz) |
Rise Time (ns / mm) beam dia. |
Optical Power Density /(cm2) Ave./Pk |
Interaction Material |
1064 |
34027-1.5-SF10 |
38027-4DS 38027-4DM |
30 @ 2 Random 60 @ 4 Random |
1.5 |
27.12 |
165 |
120KW/500MW |
SF10 |
1064 |
34041-1.5-SF10 |
38041-4DS 38041-4DM |
20 @ 2 Random 40 @ 4 Random |
1.5 |
40.68 |
165 |
120KW/500MW |
SF10 |
1064 |
34080-1-SF10 |
38080-4DS 38080-4DM |
20 @ 2 Random 40 @ 4 Random |
1 |
80 |
165 |
120KW/500MW |
SF10 |
Water-cooled Q-switch Q-switch Drivers