DBS-3x3 - Two-dimensional Beam Splitter

3x3 beam splitter diffracts the input beam into 9 beams. The power in each beam in ratio to the input power is > 8 % and the uniformity error (power in 9 beams to each other) is < 5 % (max-min)/(max+min). Power in the highest unwanted diffraction order is < 1.2 %.

 

 

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Model DBS-3x3
Separation angle see table
Wavelength see table
Efficiency (power in the 9 wanted beams) > 73 %
Uniformity error (max-min)/(max+min) < 5 %, incl. 0th Order beam
Unwanted beams < 1.2 %
Dimensions dia. 25.4 mm / thickness 3 mm
Active area dia. 23 mm
Damage threshold 10 J/cm² @ 1064 nm, 10 ns
5 J/cm² @ 532 nm, 10 ns
3 J/cm² @ 355 nm, 10 ns

Incl. AR/AR coating

Model No.: DBS-3x3-Wavelength-Separation angle

Separation angle of DBS-3x3 beam splitter

3x3 beam splitter, separation angle α according to the wavelength
Wavelength 1064 nm 1030 nm 532 nm 515 nm 355 nm 343 nm
  2.903 ° 2.811 ° 1.451 ° 1.405 ° 0.969 ° 0.936 °
  1.501 ° 1.453 ° 0.750 ° 0.726 ° 0.501 ° 0.484 °
  1.204 ° 1.166 ° 0.602 ° 0.583 ° 0.402 ° 0.388 °
  1.000 ° 0.968 ° 0.500 ° 0.484 ° 0.334 ° 0.322 °
  0.500 ° 0.484 ° 0.250 ° 0.242 ° 0.167 ° 0.161 °
  0.296 ° 0.286 ° 0.148 ° 0.143 ° 0.0987 ° 0.0954 °
Other angles or wavelengths on request

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TOPAG Lasertechnik GmbH
Nieder-Ramstädter Str. 247
64285 Darmstadt, Germany
Phone: +49 6151 4259 78
Fax: +49 6151 4259 88
E-mail: info@topag.de