Beam Samplers split two beams away from the main laser beam. The physical behavior of these two beams is identical to the main beam. Thus, the two beams can be used very well for online monitoring.
In the opposite of ordinary beam splitters, the Beam Samplers diffract a small fraction (typical < 1 %) of the input beam energy into higher diffraction orders (± 1st order). The bulk (typical > 99 %) of the input energy remains in the main beam and can be used for laser process as before. The + 1st and - 1st order can be used as input beam for example for measurement of power/power stability, beam profilers, M² measurement or autocorrelators.
Beam Samplers are available with different separation angles between the main beam and the two separated beams. The ratio of light (main beam to the two separated beams) can be adapted to the requirements of the measurement.
| Model | DBM |
| Ratio of light in the main beam (zero order) | typical > 99 % |
| Ratio of light in each of the two separated beams (± 1st order) | typical < 0.5 %, < 0.25 %, < 0.1 %, < 0.05 % |
| Diffraction angle (between zero and ± 1st order) | see table |
| Wavelenght | see table |
| Material | UVFS |
| Dimensions | dia. 25.4 mm / thickness 3 mm |
| Active area | dia. 23 mm |
| Damage threshold @ 10 ns | 10 J/cm² @ 1064 nm, 8 J/cm² @ 800 nm, 5 J/cm² @ 532 nm, 3 J/cm² @ 355 nm |
Incl. AR/AR coating
Model No.: DBM - wavelength - separation angle -Power in + 1st order
| Separation between main beam and 1st order beam according to the wavelength | |||||||
| Wavelength | 1064nm | 1030nm | 800nm | 532nm | 515nm | 355nm | 343nm |
| 2.29° | 2.22° | 1.72° | 1.15° | 1.11° | 0.76° | 0.74° | |
| 5.09° | 4.92° | 3.82° | 2.54° | 2.46° | 1.70° | 1.64° | |
| 9.60° | 9.29° | 7.20° | 4.78° | 4.63° | 3.19° | 3.08° | |
| 10.21° | 9.88° | 7.66° | 5.09° | 4.92° | 3.39° | 3.28° | |
| 20.77° | 20.08° | 15.47° | 10.21° | 9.88° | 6.80° | 6.57° | |
| Other wavelengths, separation angles and/or ratios of separation on request | |||||||
Our beam shaping optics are also available at the following international distributors:
Eastern Europe:
EKSMA Optics
Mokslininku str. 11,
Vilnius, LT-08412, Lithuania
Phone: +370 5 272 99 00
Fax: +370 5 272 92 99
E-mail: info@eksmaoptics.com
Japan:
Tokyo Instruments
6-18-14 Nishikasai Edogawa-ku,
Tokyo 134-0088, Japan
Phone: +81 3 3686 4711
Fax: +81 3 3686 0831
E-mail: sales@tokyoinst.co.jp
North America:
CourierTronics
315 Carrolls Grove Rd
Troy, NY 12180, USA
Phone: +1 518 279 9500
Fax: +1 518 279 3864
E-mail: info@couriertronics.com
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In the opposite of ordinary beam splitters, the Beam Samplers diffract a small fraction (typical < 1 %) of the input beam energy into higher diffraction orders (± 1st order). The bulk (typical > 99 %) of the input energy remains in the main beam and can be used for laser process as before. The + 1st and - 1st order can be used as input beam for example for measurement of power/power stability, beam profilers, M² measurement or autocorrelators.
Beam Samplers are available with different separation angles between the main beam and the two separated beams. The ratio of light (main beam to the two separated beams) can be adapted to the requirements of the measurement.
| Model | DBM |
| Ratio of light in the main beam (zero order) | typical > 99 % |
| Ratio of light in each of the two separated beams (± 1st order) | typical < 0.5 %, < 0.25 %, < 0.1 %, < 0.05 % |
| Diffraction angle (between zero and ± 1st order) | see table |
| Wavelenght | see table |
| Material | UVFS |
| Dimensions | dia. 25.4 mm / thickness 3 mm |
| Active area | dia. 23 mm |
| Damage threshold @ 10 ns | 10 J/cm² @ 1064 nm, 8 J/cm² @ 800 nm, 5 J/cm² @ 532 nm, 3 J/cm² @ 355 nm |
Incl. AR/AR coating
Model No.: DBM - wavelength - separation angle -Power in + 1st order
| Separation between main beam and 1st order beam according to the wavelength | |||||||
| Wavelength | 1064nm | 1030nm | 800nm | 532nm | 515nm | 355nm | 343nm |
| 2.29° | 2.22° | 1.72° | 1.15° | 1.11° | 0.76° | 0.74° | |
| 5.09° | 4.92° | 3.82° | 2.54° | 2.46° | 1.70° | 1.64° | |
| 9.60° | 9.29° | 7.20° | 4.78° | 4.63° | 3.19° | 3.08° | |
| 10.21° | 9.88° | 7.66° | 5.09° | 4.92° | 3.39° | 3.28° | |
| 20.77° | 20.08° | 15.47° | 10.21° | 9.88° | 6.80° | 6.57° | |
| Other wavelengths, separation angles and/or ratios of separation on request | |||||||
Our beam shaping optics are also available at the following international distributors:
Eastern Europe:
EKSMA Optics
Mokslininku str. 11,
Vilnius, LT-08412, Lithuania
Phone: +370 5 272 99 00
Fax: +370 5 272 92 99
E-mail: info@eksmaoptics.com
Japan:
Tokyo Instruments
6-18-14 Nishikasai Edogawa-ku,
Tokyo 134-0088, Japan
Phone: +81 3 3686 4711
Fax: +81 3 3686 0831
E-mail: sales@tokyoinst.co.jp
North America:
CourierTronics
315 Carrolls Grove Rd
Troy, NY 12180, USA
Phone: +1 518 279 9500
Fax: +1 518 279 3864
E-mail: info@couriertronics.com
Do you have questions about our products?
Write to us | info@topag.de
Give us a call | +49 6151 42944 0
TOPAG Lasertechnik GmbH
Nieder-Ramstädter Str. 247
64285 Darmstadt, Germany
Phone: +49 6151 42944 0
Fax: +49 6151 42944 11
E-mail: info@topag.de