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Broadband Dielectric Beamsplitters

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Broadband Dielectric Beamsplitters
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  • Broadband Dielectric Beamsplitters

  • Polarizing Beamsplitters divide unpolarized beam into two orthogonal, linearly polarized parts. A wide variety of Polarizing Beamsplitters configurations are offered by CASTECH,
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Introduction:

Polarizing Beamsplitters divide unpolarized beam into two orthogonal, linearly polarized parts. A wide variety of Polarizing Beamsplitters configurations are offered by CASTECH, including UV Laser Line Polarizing Beamsplitter Cubes, Laser Line Polarizing Beamsplitter Cubes, Broadband Polarizing Beamsplitter Cubes, Laser Line Polarizing Plate Beamsplitters, Broadband Polarizing Plate Beamsplitters. Coating is a critical portion of a high performance Polarizing Beamsplitters. CASTECH has extensive coating techniques and expertise of IBS, IAD, E-Beam & MS coating to suit high extinction ratio and high damage threshold needs. High-energy Laser Line Polarizing Beamsplitter Cubes are constructed by optically contacting rather than cementing. With damage threshold up to 20 J/cm2, they are ideal for high power laser application.

 

Specifications:

Material BK7 or UV fused silica
Dimension Tolerance +0/-0.13mm
Thickness Tolerance ±0.38mm
Wedge 30′±15′
Wavefront Distortion λ/10 @ 632.8nm(over the clear aperture)
Clear Aperture  central>80% of diameter
S1 Beamsplitter coating Rs=50%±5%,Rp≤Rs @ 45° incidence
S2 AR coating Multilayer coating: Ravg<0.75% @ 45° incidence
Chamfers

25.4mm:0.25-0.76 mm face width x  45°± 15°

50.8 mm:0.38-1.14 mm face width  x 45° ± 15°

Damage Threshold

500W/cm2, 1J/cm2 ,10 nsec pulses 

 

 

Order Information:

 

BBS ---- 127 ---- 061 ---- W400-700 ---- BK7
       
Product code   Dimension"A"=12.7mm   Thickness=6.1mm   Wavelength “λ”=400-700nm   Material

 

 

Broadband Dielectric Beamsplitters:

 

Part Number   Dimension A(mm)     Thickness  T(mm)    Material   
  BBS-127-031-λ-BK7   12.7 3.1 BK7
BBS-254-061-λ-BK7 25.4 6.1 BK7
BBS-508-094-λ-BK7 50.8 9.4 BK7
BBS-127-031-λ-UVFS 12.7 3.1 UVFS
BBS-254-061-λ-UVFS 25.4 6.1 UVFS
BBS-508-094-λ-UVFS 50.8 9.4 UVFS

 

 

Standard Wavelength(λ):

 

  480-700nm     700-950nm     1290-1580nm  

 

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