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HPPB

High Power Polarizing Beamsplitters has more laser durability compared to our standard Polarizing
Beamsplitters (PBS). Polarizing beamsplitters consist of two right angle prisms.
One of them is coated with dielectric multi-layer polarizing coating on the hypotenuse face.
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  Specifications

  Material

  BK7, Synthetic fused silica

  Surface flatness of substrate

  λ/4

  Angular deviation of transmitted beam

  <10

  Coating

  Hypotenuse Surface: Dielectric multi-layer polarizing coating
  Four Surfaces: Narrowband multi-layer anti-reflection coating

  Incident angle

  0°

  transmittance of P polarized light

  >97%

  Extinction ratio of transmission

  Ts : Tp = 1 : 200

  Surface Quality (ScratchDig)

  2010

  Clear aperture

  Circle inscribed in a square of 85% of the
  dimensions

 

 

  ▶Input beam from the prism on the side indicated by ○. When the light is incident from the side of the prism without mark, there is a possibility that the characteristics of the transmittance and extinction ratio changes.
  ▶The surface flatness is the reflected wave front distortion of the surface before coating.
  ▶Be sure to wear laser safety goggles when checking optical path and adjusting optical axis.

 

  Part Number   Wavelength Range
[nm]
  A=B=C
[mm]
  Material   transmittance of Spolarized light
[%]
  Laser Damage Threshold*
[J/cm2]
  HPPB-10-3550 355 10 Synthetic fused silica >97 2
  HPPB-15-3550 355 15 Synthetic fused silica >97 2
  HPPB-20-3550 355 20 Synthetic fused silica >97 2
  HPPB-10-5320 532 10 BK7 >98 5
  HPPB-15-5320 532 15 BK7 >98 5
  HPPB-20-5320 532 20 BK7 >98 5
  HPPB-10-10640 1064 10 BK7 >98 7
  HPPB-15-10640 1064 15 BK7 >98 7
  HPPB-20-10640 1064 20 BK7 >98 7
 

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HPPB Stages

HPPB.pdf

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