United Photonics Technology

我司提供高精度 雙波長波片 dual wavelength waveplate, 可以根據要求提供，

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Waveplates

Principle / Application – λ/4 Waveplate
UPT quarter waveplates create a quarter-wavelength phase shift (π/2, 90°) and can convert linear polarization to circular polarization and vice versa. They are often used with a linear polarizer to form an isolator, blocking light reflected back from other surfaces (ellipsometry, optical pumping, isolation).

Principle / Application – λ/2 Waveplate
UPT half waveplates retard one polarization direction by half a wavelength (π, 180°), effectively changing the direction of linear polarization, depending on the orientation of incident linear polarization with respect to the crystal axis. Therefor they can be used as continuously adjustable polarization rotators e.g. in electro optical modulation or as a variable beam splitter when used in combination with a polarizing beam splitter.

Dual Wavelengths Waveplate

? Single retardation plate
? Dual-wavelength AR coated, R<0.2% @ foundational wavelength & R<0.5% @ SHG wavelength

Specifications

  Note:

  ?  Custom designs for other sizes and coatings are also available upon request.

  ?  UPT’s standard coatings are available.

  ?  Other waveplates with different wavelength range are also available upon request, please contact UPT for more information. 

United Photonics Technology