DBS-1x8 - One-dimensional Beam Splitter

1x8 beam splitter diffracts the input beam into 8 beams. The power in each beam in ratio to the input power is > 8.7 % and the uniformity error (power in both beams to each other) is < 2.5 % (max-min)/(max+min). Power in the highest unwanted diffraction order is < 1 %.

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Model DBS-1x8
Separation angle see table
Wavelength see table
Efficiency (power in the 8 wanted beams) > 70 %
Uniformity error (max-min)/(max+min) < 2.5 %, incl. 0th order
Light in 0th order beam < 1 %
Unwanted beams < 1 %
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-1x8-Wavelength-Separation angle

Seperation angle of DBS-1x8 beam splitter

1x8 beam splitter, separation angle α according to the wavelength
Wavelength 1064 nm 1030 nm 532 nm 515 nm 355 nm 343 nm
  0.646 ° 0.625 ° 0.323 ° 0.313 ° 0.216 ° 0.208 °
  0.464 ° 0.449 ° 0.232 ° 0.225 ° 0.155 ° 0.150 °
  0.449 ° 0.434 ° 0.224 ° 0.217 ° 0.150 ° 0.145 °
Other angles or wavelengths on request

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Give us a call | +49 6151 425978

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