455 nm wave rotator plate 90°

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


Available quantity: 72 Items

    $59.00 tax excl.

    Technical Data

    Design Wavelength455 nm
    Dimensions10 x 10 mm
    Thickness3 mm

    More info

    - 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, 525nm and 638 nm wavelengths.