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Product Description

Liquid Crystal Polymer/UVFS window material, sandwich flat structure
Applicable for generating annular beams
High efficiency and stability, easy operation, large incident angle, high damage threshold
Design wavelength: 532 nm, 1064 nm, annular order m value: 1, 2, 4 optional
Flexible customization of parameter specifications avaiIable

The LBTEK Polymer Annular Shaping DOE is fabricated using UVFS window substrates and liquid crystal polymer (LCP) material, featuring a sandwich structure of "front and rear glass substrates with an intermediate LCP functional film layer." Within the LCP layer, the fast-axis orientation of the liquid crystal molecules generally follows a pattern of radial uniformity and continuous angular gradient across the substrate, maintaining a consistent λ/2 retardation across the entire device plane. The polymer annular shaping DOE undergoes specialized phase optimization and material upgrades for industrial applications, supporting customized point-ring energy distribution. It offers advantages such as high efficiency, stability, ease of operation, and a high damage threshold, while also delivering excellent temperature stability and a wide range of incident angles. LBTEK provides standard polymer annular shaping DOEs with design wavelengths λ at 532 nm and 1064 nm (with actual operational wavelengths extendable to 515-540 nm and 1030-1080 nm, respectively) and annular orders (m) of 1, 2, and 4. Additionally, LBTEK supports flexible customization of parameters to meet diverse application requirements. For details, please consult LBTEK Technical Support.

Attribute

Component MaterialLiquid Crystal Polymer/UVFS Window Sheet

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

Component sizeØ25.4×3.2 mm

Angle of Incidence (AOI)±20 °

Clear ApertureØ21.5 mm

Transmission Wavefront Error＜λ/4@633 nm

Center offset＜0.5 mm

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

Surface finish (scratches/pits)40/20

Latencyλ/2

Operating Temperature-20~80 ℃

Delay Accuracy & Uniformity±5 nm

Polymer Annular Shaping DOE, m=1

Applicable to Incident Light with Diameters from Ø1.0 to Ø21.5 mm
Gaussian-to-ring Energy Switching Available

LBTEK m=1 polymer annular shaping DOE is suitable for incident light with diameters ranging from Ø1.0 mm to Ø21.5 mm, with a conversion efficiency ≥99.5%. The smaller the selected annular order m, the smaller the central hole size of the beam. The polymer annular shaping DOE has undergone special phase optimization and material upgrades for industrial applications, with design wavelengths of 532 nm and 1064 nm, applicable working wavelength ranges of 515 nm to 540 nm and 1030 nm to 1080 nm, respectively. The product's 0° fast axis is marked on the side of the product.

Product Assembly Diagram

	Product Model	Order m	Operating wavelength λ	Clear Aperture	Unit Price	Compare	Lead Time
	VR25H-1064-1	1	1030-1080 nm	Ø21.5 mm	$1019.78		3 weeks
	VR25H-532-1	1	515-540 nm	Ø21.5 mm	$1019.78		3 weeks

Polymer Annular Shaping DOE, m=4

Applicable to Incident Light with Diameters from Ø1.0 to Ø21.5 mm
Gaussian-to-ring Energy Switching Available

The LBTEK m=4 polymer annular shaping DOE is suitable for incident light with diameters ranging from Ø1.0 mm to Ø21.5 mm, achieving a conversion efficiency of ≥99.5%. The smaller the selected annular order m, the smaller the central hole size of the beam. The polymer annular shaping DOE has undergone special phase optimization and material upgrades for industrial applications, with design wavelengths of 532 nm and 1064 nm, and applicable working wavelength ranges of 515 nm to 540 nm and 1030 nm to 1080 nm, respectively. The product's 0° fast axis is marked on the side of the product.

Product Assembly Diagram

	Product Model	Order m	Operating wavelength λ	Clear Aperture	Unit Price	Compare	Lead Time
	VR25H-1064-4	4	1030-1080 nm	Ø21.5 mm	$1019.78		3 weeks
	VR25H-532-4	4	515-540 nm	Ø21.5 mm	$1019.78		3 weeks

Polymer Annular Shaping DOE, m=2

Applicable to Incident Light with Diameters from Ø1.0 to Ø21.5 mm
Gaussian-to-ring Energy Switching Available

The LBTEK m=2 polymer annular shaping DOE is suitable for incident light with diameters ranging from Ø1.0 mm to Ø21.5 mm, with a conversion efficiency of ≥99.5%. The smaller the selected annular order m, the smaller the central hole size of the beam. The polymer annular shaping DOE has undergone special phase optimization and material upgrades for industrial applications, with a design wavelength of 532 nm and 1064 nm, and applicable working wavelength ranges of 515 nm to 540 nm and 1030 nm to 1080 nm, respectively. The product's 0° fast axis is marked on the side of the product.

Product Assembly Diagram

	Product Model	Order m	Operating wavelength λ	Clear Aperture	Unit Price	Compare	Lead Time
	VR25H-1064-2	2	1030-1080 nm	Ø21.5 mm	$1019.78		3 weeks
	VR25H-532-2	2	515-540 nm	Ø21.5 mm	$1019.78		3 weeks

Polymer Annular Shaping DOEs