Gold Member Since 2016
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Qinhuangdao Intrinsic Crystal Technology Co., Ltd.

Znse or Ge Brewster Window for Optical Laser Win, Brewster Windows (BK7&Fused Silica), Optical Windows manufacturer / supplier in China, offering Brewster Windows (BK7&Fused Silica) , Optical Windows, Precision Sapphire, Optical Windows, Calcium Fluoride (CaF2) Materials, Crystal Materials CaF2 Components and so on.

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Brewster Windows (BK7&Fused Silica) , Optical Windows

FOB Price: US $20-60 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $20-60/ Piece
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Port: Beijing, China
Production Capacity: 5000
Payment Terms: T/T, Western Union, Paypal

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Basic Info
  • Model NO.: D5~D300mm
  • Type: Flat Lens
  • Shape: Single-lens
  • Lenses Color: Clear
  • Customized: Customized
  • HS Code: 9001909090
  • Usage: Optical
  • Transmittance: >95%
  • Material: Optical Glass
  • Certification: RoHS, SGS, ISO9001
  • Coating: Ar Bbar
Product Description

Brewster windows are used in laser cavities to reject the s-polarized beam and to allow only linearly p-polarized light to be emitted.  They are designed for use at the Brewster angle where the reflective polarization effect is most efficient.

These windows are cut at the appropriate angle so that they present a circular cross-section to the laser cavity. They are made either of BK7 with a Brewster angle of 56.5°or UV fused silica with a Brewster angle of 56.0°. Brewster windows are polished to 20/10 or better to be of intra-cavity laser quality.  Flatness is not so critical, so they can be made to a flatness of between λ/2 and λ/4.  This enables them to be kept relatively thin, between 1.5 and 2.0 mm.

These windows are uncoated, but we will be pleased to offer coatings to meet your special requirements.
Brewster Windows (BK7&Fused Silica) , Optical WindowsBrewster Windows (BK7&Fused Silica) , Optical Windows

 Standard Specifications:  

Optical Material: 
Diameter Tolerance:
Thickness Tolerance:
Clear Aperture:
Wedge:
Surface Quality:
Wavefront Distortion:
Bevel:
Coating:

see the table 
+0.0, -0.1mm
±0.2mm
>90%
±5 are minutes
20-10
λ/4 at 632nm 
<0.25mm X 45°
available upon request

Brewster Windows (BK7&Fused Silica) , Optical WindowsBrewster Windows (BK7&Fused Silica) , Optical Windows
 Standard Brewster Windows

Minor Diameter D (mm)

Thickness(mm)

Product Number

BK7

10.0

2.0

ICC-BWNB0001

13.0

2.0

ICC-BWNB0002

16.0

2.0

ICC-BWNB0003

20.0

2.0

ICC-BWNB0004

25.4

2.0

ICC-BWNB0005

Fused Silica
Brewster Windows (BK7&Fused Silica) , Optical Windows

10.0

2.0

ICC-BWNF0101

13.0

2.0

ICC-BWNF0102

16.0

2.0

ICC-BWNF0103

20.0

2.0

ICC-BWNF0104

25.4

2.0

ICC-BWNF0105


Brewster Windows (BK7&Fused Silica) , Optical Windows
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