United photonics technology

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Glan Laser prism polarizer is made of two same birefringent material prisms that are assembled with an air space. the polarizer is a modification of the Glan Taylor type and is designed to have less reflection loss at the prism junction. the polarizer with two escape windows allow the rejected beam to escape out of the polarizer, which makes it more desirable for high energy lasers. the surface quality of these faces is relatively poor as compared to that of entrance and exit faces. No scratch dig surface quality specifications are assigned to these faces. The polarized field F1 and F2 of these is shown in the plot below.


Features:
Air-spaced
Close to Brewster's Angle Cutting
High Polarization Purity
Short Length
Suitable for low to medium power online_ordering where the rejected beam is not required

Specifications:
Material:a -BBO, Calcite or YVO4
Wavelength Range:a -BBO: 200-3500 nm, Calcite: 350-2300 nm, YVO4: 400-5000 nm
Extinction Ratio:Calcite:<5x10 -5; a -BBO:<5x10 -6; YVO4:<5x10 -6
Parallelism:<1 arc Min
Surface Quality:20-10
Beam Deviation:< 3 arc minutes
Wavefront Distortion:l/4@633nm
Damage Threshold:>500 MW/cm 2
Coating:Single layer MgF2
Mount:Black Anodized Aluminium

Standard Products
1.A-BBO Glan Laser Polarizer
Part No.    Wavelength Rang(nm)    Extinction Ratio
Angular Field(°)  C.A. Fa(mm)  O.D. Fd(mm)  L ±0.1(mm)
GLP52**  200-270    <5x10-6  >6.0°
GLP53**  300-700  <5x10-6  >6.0°
GLP57**    700-3000  <5x10-6    >6.0°

2. Calcite Glan Laser Polarizer
Part No.            Wavelength Rang(nm)    Extinction Ratio
Angular Field(°)    C.A. Fa(mm)  O.D. Fd(mm)  L ±0.1(mm)
GLP60**            350-2300         <5x10-5        >7.7°

3. YVO4 Glan Laser Polarizer
Part No.
Wavelength Rang(nm)  Extinction Ratio
Angular Field(°)  C.A. Fa(mm)  O.D. Fd(mm)  L ±0.1(mm)
GLP90**              500-4000       <5x10-6       >6.5°

Note:Custom designs for other sizes and coatings are also available  upon request

United photonics technology

United photonics technology