455 nm Wave Rotator Plate 90°

455 nm Wave Rotator Plate 90° is a cost-effective alternative to a polarization half waveplate, this product rotates the axis of polarization by a half wave or ninety degrees in the range of 440 nm – 473 nm (blue light). It is often used together with a PBS cube to combine two collimated beams at the same wavelength, allowing the power to be scaled without changing the beam’s optical properties.

Reference: 001248

EAN13: 5902693110705


In stock


Product Description

About the 455 nm Wave Rotator Plate 90°

  • Cost-effective and easier to align alternative to traditional polarization half wave retarders (λ/2 waveplates)
  • Can be used with a PBS cube for polarization combining
  • V-AR coating allows transmission > 99% (typ.) around 455 nm

Half wave polarization rotators function by rotating the polarization axis of the linearly polarized beam of light by 90 degrees (lambda/2) near the design wavelength.

Polarization rotator plates are an excellent and a far lower-cost alternative to a waveplate retarder. However, unlike traditional half waveplate retarders, the rotation of the polarization is independent of the angle of the optic about the z-axis (light propagation axis). This makes alignment much simpler compared to working with a half waveplate retarder.

Our half-wave polarization rotators commonly used to combine beams in conjunction with a polarizing beamsplitter (PBS) cube for ~455 nm light. This is a cost-effective means to effectively double the power in an optical system without an increase in beam size or beam divergence resulting in a loss of etendue.

Although the design wavelength is 455 nm, this product may be used over the range of 440 nm – 473 nm (including the wavelengths 442 nm, 445 nm, 450 nm, 462 nm, and 465 nm) with minimal loss of efficiency. This polarization plate has dimensions of 10 x 10 mm with a nominal thickness of 5 mm, making it suitable for large or multiple beams adjoined by “knife edging”.

Opt Lasers also offers half-wave polarization rotator plates for wavelengths near 525 nm and 638 nm, as well as PBS cubes at the 455 nm, 525 nm and 638 nm wavelengths.

Technical Data

Design Wavelength455 nm
Dimensions10 x 10 mm
Thickness3 mm


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