LBTEK-Polymer Ring-Shaping DOE

Product Description

Liquid Crystal Polymer (LCP) and UVFS Windows in a Planar Sandwich Structure
Capable of Generating Annular Beams
High Efficiency and Stability, Easy Operation, Large Acceptance Angle, and High Damage Threshold
Design Wavelengths: 532 nm and 1064 nm; Ring Order m = 1, 2, or 4 Available
Supports Flexible Customization of Specifications

LBTEK Polymer Ring-Shaping DOE is fabricated from UVFS windows and liquid crystal polymer (LCP) material in a sandwich structure consisting of front and rear glass substrates with an intermediate LCP functional layer. In the LCP layer, the fast axis orientation of the liquid crystal molecules is generally uniform along the radial direction of the substrate and varies continuously along the azimuthal direction, providing a uniform λ/2 retardance across the entire element plane. Optimized in phase design and upgraded in material for industrial applications, the Polymer Ring-Shaping DOE supports customization of special point-ring energy distributions and offers high efficiency and stability, easy operation, and a high damage threshold, together with excellent temperature stability and a large acceptance angle range. LBTEK offers standard polymer ring-shaping DOEs with design wavelengths of λ = 532 nm and 1064 nm — the actual operating wavelengths can be broadened to cover 515–540 nm and 1030–1080 nm, respectively — and ring orders of m = 1, 2, and 4. Flexible customization of specifications is also supported from LBTEK to meet diverse applications. For details, please contact LBTEK Technical Support.

Diagram

Attributes

Component MaterialLiquid Crystal Polymer/UVFS Window

ReflectivityRavg < 0.5% (0° angle of incidence) @ operating wavelength

Component sizeØ25.4 × 3.2 mm

Angle of Incidence (AOI)± 20°

Clear ApertureØ21.5 mm

Transmitted Wavefront Error＜λ/4 @ 633 nm

Center offset＜ 0.5 mm

Transmitted light deflection (without mechanical housing installed)＜ 1 arcmin

Surface Quality (Scratch/Dig)40/20

Retardanceλ/2

Operating Temperature-20~60℃

Delay Accuracy & Uniformity±5 nm

Polymer Ring-Shaping DOE, m = 1

Compatible with Incident Beams of Ø1.0–Ø21.5 mm
Gaussian-to-Annular Energy Conversion

LBTEK Polymer Ring-Shaping DOE with m = 1 is designed for incident beams between Ø1.0 mm and Ø21.5 mm, with a conversion efficiency of ≥ 99.5%. The smaller the selected ring order m, the smaller the central null of the beam. Optimized in phase design and upgraded in material for industrial applications, the Polymer Ring-Shaping DOE is available with design wavelengths of 532 nm and 1064 nm, covering operating wavelengths of 515–540 nm and 1030–1080 nm respectively. The 0° fast axis of the product is marked on its side.

Product Assembly Schematic

	Product Model	Order m	Operating wavelength λ	Clear Aperture	File	Unit Price	Compare	Lead Time
	VR25H-1064-1	1	1030-1080 nm	Ø21.5 mm		$1,069.00		today	Add Cart
	VR25H-532-1	1	515-540 nm	Ø21.5 mm		$1,069.00		today	Add Cart

Polymer Ring-Shaping DOE, m = 2

Compatible with Incident Beams of Ø1.0–Ø21.5 mm
Gaussian-to-Annular Energy Conversion

LBTEK Polymer Ring-Shaping DOE with m = 2 is designed for incident beams between Ø1.0 mm and Ø21.5 mm, with a conversion efficiency of ≥ 99.5%. The smaller the selected ring order m, the smaller the central null of the beam. Optimized in phase design and upgraded in material for industrial applications, the Polymer Ring-Shaping DOE is available with design wavelengths of 532 nm and 1064 nm, covering operating wavelengths of 515–540 nm and 1030–1080 nm respectively. The 0° fast axis of the product is marked on its side.

Product Assembly Schematic

	Product Model	Order m	Operating wavelength λ	Clear Aperture	File	Unit Price	Compare	Lead Time
	VR25H-1064-2	2	1030-1080 nm	Ø21.5 mm		$1,069.00		today	Add Cart
	VR25H-532-2	2	515-540 nm	Ø21.5 mm		$1,069.00		3 weeks	Add Cart

Polymer Ring-Shaping DOE, m = 4

Compatible with Incident Beams of Ø1.0–Ø21.5 mm
Gaussian-to-Annular Energy Conversion

LBTEK Polymer Ring-Shaping DOE with m = 4 is designed for incident beams between Ø1.0 mm and Ø21.5 mm, with a conversion efficiency of ≥ 99.5%. The smaller the selected ring order m, the smaller the central null of the beam. Optimized in phase design and upgraded in material for industrial applications, the Polymer Ring-Shaping DOE is available with design wavelengths of 532 nm and 1064 nm, covering operating wavelengths of 515–540 nm and 1030–1080 nm respectively. The 0° fast axis of the product is marked on its side.

Product Assembly Schematic

	Product Model	Order m	Operating wavelength λ	Clear Aperture	File	Unit Price	Compare	Lead Time
	VR25H-1064-4	4	1030-1080 nm	Ø21.5 mm		$1,069.00		3 weeks	Add Cart
	VR25H-532-4	4	515-540 nm	Ø21.5 mm		$1,069.00		today	Add Cart