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Polarizer

 

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Polarizing beam splitter

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Polarizing Cube Beamsplitters split randomly polarized beams into two orthogonal, linearly, polarized components-S-polarized light is reflected at a 90deg. Angle while P-polarized light is transmitted. Each beamsplitter consists of a pair of precision high tolerance right angle prisms cemented together with a dielectric coating on the hypotenuse of one of prisms.

Currently. as coating technologies and assembly techniques have improved, so there are many types of polarizing beamsplitter cubes can be provided in the market. Dayoptics has own technology in providing two types of high precision polarizing beamsplitter cube. One is by using cemented method for PBS (as standard PBS), the other one is using optical bonding method for the interface of PBS (as high power PBS). The comparison specification of two PBS as following for your reference.
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Dayoptics Polarizing Beam Splitter (PBS)
Standard PBS High Power PBS
interface surface Cemented Optically Bonded
Damaged threshold @ 1064 nm 0.2-1 J/cm2 >15 J/cm2
Possible damage threhold @ 355nm 0.1-0.25 J/cm2 2-3J/cm2
Flatness l/4 l/8
Transmission @ 1064nm >95% >96%
Surface Figure 60/40 40/20 (20/10)
extinction ratio 300:1-500:1 >1000:1

 

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2007 Dayoptics, Inc. Address: 20 Baihua Zhou Road jinshan Pushang Industrial Park, Fuzhou, China.
Tel: +86 591 83854978,83215681,88079782,88079884 Fax: +86 591 83215359 E-mail: sales@dayoptics.com