Vortex Retarder Array

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Product Description
  • Liquid Crystal Polymer (LCP) on N-BK7 Window, Planar Sandwich Structure with Mechanical Housing
  • Vortex Retarders with Topological Charge m = 1–9 Arranged in Discrete or Monolithic 3 × 3 Arrays
  • Polarization-dependent; Generates Vortex Beam Arrays With l = ±1–±9 and Various Vector Polarized Beam Arrays
  • High Integration, High Efficiency and Stability, Easy Operation, Large Acceptance Angle
  • Operating Wavelength λ: 633 nm; Topological Charge m: 1–9
  • Supports Flexible Customization of Specifications
LBTEK Vortex Retarder Array (VRA) is made from an N-BK7 glass substrate and Liquid Crystal Polymer (LCP) material. Vortex retarder units with topological charge m = 1–9 are combined into a 3 × 3 array in either discrete or monolithic form, and housed in a standard SM1 lens tube or a specially customized mechanical fixture. Depending on the polarization state of the incident beam, it can generate vortex beam arrays with l = ±1–±9 or various vector polarized beam arrays. Compared to a single vortex retarder, the VRA offers higher integration and is easier to use in applications involving vortex beam arrays; it also retains the advantages of flat-plate optical components—high efficiency, stability, and easy operation. Its true zero-order characteristics also enable lower wavelength sensitivity, higher temperature stability, and a larger acceptance angle. LBTEK offers discrete and monolithic VRAs at operating wavelength λ = 633 nm and topological charge m = 1–9, with flexible customization of parameters to meet diverse application requirements. Please consult LBTEK Technical Support for details.
Diagram
Attributes
Order m1-9
Conversion efficiency>99.5%
Operating wavelength λ633 nm
Angle of Incidence (AOI)±20°
MaterialLiquid Crystal Polymer/N-BK7 Window
AR Coating400–700 nm
Center offset< 0.5 mm
Transmittance (@design wavelength)> 98%
Surface Quality (Scratch/Dig)40/20
ReflectivityRavg < 0.5% (0° incidence angle)
Operating Temperature-20–80 °C
Transmitted Wavefront Error (TWE) (@633 nm)<λ/4
Transmitted light deflection (without mechanical housing installed)<1 arcmin
Retardanceλ/2
Transmitted light deflection (with mechanical housing installed)<10 arcmin
Delay Accuracy & Uniformity±5 nm
Discrete Vortex Retarder Array, m = 1–9
  • Generates Laguerre-Gaussian Beams with l = ±1–±9
  • Generates Various Vector Polarized Beams
  • Suitable for Beam Sizes from Ø0.3 mm to Ø10.0 mm

LBTEK Half-inch Vortex Retarders with topological charge m = 1–9 are mounted in a specially designed fixture, forming a 3 × 3 square array. Following the left-to-right, top-to-bottom order, the topological charges m are 1–9, with a center-to-center distance of 15 mm between adjacent units. The clear aperture of each unit is Ø10 mm, suitable for beam sizes from Ø0.3 mm to Ø10.0 mm. It can generate Laguerre-Gaussian beam arrays with l = ±1–±9 or various vector polarized beam arrays.

VRA-633 Mounted on an Ø12.7 mm Stainless Steel Optical Post

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Order m
Operating wavelength λ
Clear Aperture
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VRA-633 1-9633 nmØ10.0 mm
$4,183.72today
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Monolithic Vortex Retarder Array, m = 1–9
  • Generates Laguerre-Gaussian Beams with l = ±1–±9
  • Generates Various Vector Polarized Beams
  • 1-inch Substrate, 15 mm × 15 mm Clear Aperture, Highly Compact
  • Suitable for Beam Sizes from Ø0.3 mm to Ø3.2 mm

LBTEK Monolithic VRA with topological charge m = 1–9 can generate Laguerre-Gaussian beams with l = ±1–±9 and various vector polarized beams. The entire structure is integrated on a 1-inch substrate with a total clear aperture of 15 mm × 15 mm, making it highly compact. Each sub-unit is 5 mm × 5 mm, suitable for incident beam sizes from Ø0.3 mm to Ø3.2 mm. Markings are engraved on the 1-inch mechanical barrel housing to help users identify the arrangement of m values: the locations marked with both an engraved line and a dot, and with only an engraved line, correspond to the m = 1 and m = 9 units, respectively. From the engraved line to the dot at the m = 1 unit, the direction follows increasing m in the order 1, 2, 3.

Monolithic VRA Polarization Pattern Under Linearly Polarized Light

Product Model
Order m
Operating wavelength λ
Clear Aperture
File
Unit Price
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Lead Time
VRIA-633 1-9633 nm15 mm×15 mm
$3,901.324 weeks
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