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    • Vortex Waveplate

    The Vortex Waveplate is a special polarization optical element based on a space-variant retarder (SVR) structure. It spatially modulates the polarization state of an incident laser beam to generate structured light fields such as radial polarization, azimuthal polarization, higher-order cylindrical vector polarization, and optical vortices. The standard Vortex Waveplate converts linearly polarized light into radially or azimuthally polarized light, and converts circularly polarized light into an optical vortex. The higher-order S-Waveplate further supports the conversion of linear polarization into higher-order spatial polarization distributions and can generate optical vortices with larger topological charges - up to 2-100 for higher-order products. The device is fabricated by writing self-organized nanogratings inside fused silica using femtosecond laser technology. The functional structure is embedded inside the glass without any cemented components, offering high transmittance, high laser-induced damage threshold (LIDT), and excellent thermal stability, making it suitable for high-power and ultrafast laser systems.

    Product features：Efficient conversion to radial, azimuthal, and higher‑order vortex beams；High transmittance and low loss；High laser damage threshold, suitable for high‑power and ultrafast lasers；Nanostructure inside fused silica for robust and durable operation；Supports higher‑order modes and large clear apertures

    Part Number：MP-HOS-800-02-AR

    Application area：Laser precision machining and micro‑drilling | Structured light and vortex beam generation | STED and other super-resolution microscopy | Optical tweezers and particle manipulation | High-numerical-aperture focusing | Intra-cavity polarization control in lasers

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    Main parameters
  • Core parameters

  • Transmittance Laser‑Induced Damage Threshold Maximum Clear Aperture

    94% @ 1030 nm; 92% @ 515 nm; 85% @ 343 nm (uncoated) 63.4 J/cm² @ 1064 nm, 10 ns; 2.2 J/cm² @ 1030 nm, 212 fs 15 mm

  • Dimension Drawing
    • General Parameters

    Parameter

    Specification

    Polarization conversion

    Linear → higher-order spatial polarization; Circular → optical vortex

    Polarization conversion efficiency

    Up to 100%

    Topological charge

    Standard options: 2, 4, 6, 8, 10, 15; higher orders available on request

    Typical operating wavelengths

    488, 515, 632, 800, 1030, 1550 nm, etc.

    Typical wavelength bandwidth

    488±15 nm; 515±20 nm; 632±20 nm; 800±25 nm; 1030±35 nm; 1550±40 nm

    Standard clear aperture

    6 mm

    Maximum clear aperture

    15 mm

    Substrate material

    UVFS fused silica (Corning 7980)

    Outer diameter

    25.4 mm

    Thickness

    3 mm

    Transmittance (uncoated)

    >85% @488 nm; >92% @515/632/800 nm; >94% @1030/1550 nm

    Transmittance (AR‑coated)

    >90% @488 nm; >97% @515/632/800 nm; >99% @1030/1550 nm

    Laser‑induced damage threshold (LIDT)

    63.4 J/cm² @1064 nm, 10 ns; 2.2 J/cm² @1030 nm, 212 fs

    Structure

    Continuous space‑variant nanograting, no segmented structure

    Manufacturing process

    Femtosecond laser writing of nanogratings inside fused silica

    Cemented components

    None

    AR coating

    Optional

     

    Schematic of Polarization Conversion Principle

    1.1.png 

     

    Fast-Axis Orientation Distribution

    1.2.png 

     Higher-order S-Waveplates convert linearly polarized light into higher-order polarization patterns. The figure shows examples of fast-axis patterns for 2nd-order (left), 3rd-order (center), and 4th-order (right) S-Waveplates (measured with a Hinds Instruments Exicor MicroImager).

     

    Spatial Intensity Distribution

    1.3.png 

    Spatial intensity profiles of 1st‑, 4th‑, and 6th‑order vector Bessel‑Gauss beams (a, d, g) and their single‑polarization‑component spatial intensity distributions when the polarizer is rotated to two different angles. The second column shows the intensity profiles when the polarizer is parallel to the incoming polarization (0°), and the third column shows those when the polarizer is perpendicular (90°).

     

    Uncoated Vortex Waveplate Transmission Curve

    1792472752620953.png

    Optional Configurations


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  • Product title: Vortex Waveplate
  • Product link: https://www.idealphotonics.com/product/detail/1835.html

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    • 10000 10k + Diodes sold worldwide
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