LBTEK-Polymer Homogenizing DOE

Product Description

Liquid Crystal Polymer/N-BK7 Window or UVFS Window Materials, Sandwich Planar Element Structure
Fast Axis Orientation of LC Molecules Exhibits Different Periodic Variations Depending on Design, λ/2 Retardance
Capable of Generating Square, Circular, and Line Flat-Top Beams
High Diffraction Efficiency, High Uniformity, High Damage Threshold, Sharp Edges, Designable Shape and Size
Operating Wavelength: 532, 1064 nm; Output Spot Shape: Square, Circular, Line
Supports Flexible Customization of Specifications

LBTEK Polymer Homogenizing DOE is a planar optical element designed based on diffractive optics principles, consisting of a liquid crystal polymer (LCP) film and two N-BK7 windows or UVFS windows. Based on the known incident beam parameters, lens focal length, and expected output beam parameters, the design phase is calculated through point-to-point mapping, and the designed geometric phase distribution is then introduced by the LCP film to achieve shaping and homogenization of Gaussian (TEM₀₀, M² < 1.3) incident beams. Due to its advantages of high uniformity, high transmittance, high damage threshold, and sharp edges, it has significant application prospects in laser medical aesthetics, laser processing, surface treatment, and various other scenarios. Compared with traditional refractive homogenizers, the polymer homogenizing DOE offers advantages including easy integration with its planar element structure, high energy utilization, and flexible parameter design. Compared with microlens array homogenizers, a single polymer homogenizing DOE can achieve excellent beam homogenization with sharper boundaries of the shaped output spot, while placing higher requirements on the incident beam parameters. The polymer homogenizing DOE is commonly used with a focusing lens for more flexible beam shaping and homogenization. Therefore, our standard products are all designed for focusing-type beam shaping, used with standard lenses (default f = 100 mm). Operating wavelengths of 532 nm and 1064 nm are available, with square, circular, and line output spot shapes to choose from. Element substrates are available in N-BK7 glass and UV-grade fused silica glass. In addition to standard products, LBTEK also provides flexible customization of specifications. For specific customization requirements, please contact LBTEK Technical Support.

Diagram

Attributes

Incident beam qualityM² < 1.3

Incident light eccentricity (XY displacement)±5% (× Incident Spot Diameter)

Incident light spot polarization stateUniform Polarization State

Incident light tilt±5°

Unevenness (RMS)< 10%

Diffraction efficiency (FWHM)> 90%

Polymer Homogenizing DOE, N-BK7 Substrate, Square

Liquid Crystal Polymer/N-BK7 Window
Clear Aperture: 15 × 15 mm
Converts TEM₀₀ Gaussian Beam to Square Uniform Spot

LBTEK Polymer Homogenizing DOE is fabricated on a 1.6 mm thick N-BK7 window with dual substrate layers and a single LCP film layer, featuring a uniform λ/2 retardance across the entire clear aperture. It can shape and homogenize the incident TEM₀₀ Gaussian beam into a square uniform spot. The product is shipped without a mechanical housing. The element features a D-shaped flat edge on one side, parallel to one edge of the output square spot, for easy installation and alignment.

DOE25-532-6-FTS200 Under Linear Polarizer

Product Model	Operating Wavelength	Incident spot diameter	Effective Focal Length (EFL)	Output beam spot size	Unit Price	Lead Time
DOE25-532-7-FTS30	532 nm	7 mm	100 mm	30.3 × 30.3 μm	$1,300.22	4 weeks	Add Cart
DOE25-532-6-FTS50	532 nm	6 mm	100 mm	50 × 50 μm	$1,300.22	4 weeks	Add Cart
DOE25-532-7-FTS76	532 nm	7 mm	100 mm	75.8 × 75.8 μm	$1,300.22	4 weeks	Add Cart
DOE25-1064-7-FTS30	1064 nm	7 mm	100 mm	30.3 × 30.3 μm	$1,300.22	4 weeks	Add Cart
DOE25-1064-7-FTS76	1064 nm	7 mm	100 mm	75.8 × 75.8 μm	$1,300.22	4 weeks	Add Cart
DOE25-1064-6-FTS80	1064 nm	6 mm	100 mm	80 × 80 μm	$1,300.22	4 weeks	Add Cart
DOE25-1064-6-FTS200	1064 nm	6 mm	100 mm	200 × 200 μm	$1,300.22	4 weeks	Add Cart

Polymer Homogenizing DOE, N-BK7 Substrate, Circular

Liquid Crystal Polymer/N-BK7 Window
Clear Aperture: Ø15 mm
Converts TEM₀₀ Gaussian Beam to Circular Uniform Spot

LBTEK Polymer Homogenizing DOE is fabricated on a 1.6 mm thick N-BK7 window with dual substrate layers and a single LCP film layer, featuring a uniform λ/2 retardance across the entire clear aperture. It can shape and homogenize the incident TEM₀₀ Gaussian beam into a circular uniform spot. The product is shipped without a mechanical housing. The element features a D-shaped flat edge on one side for easy installation and alignment.

DOE25-532-6-FTC200 Under Linear Polarizer

Product Model	Operating Wavelength	Incident spot diameter	Effective Focal Length (EFL)	Output beam spot size	Unit Price	Lead Time
DOE25-532-6-FTC50	532 nm	6 mm	100 mm	Ø50 μm	$1,300.22	4 weeks	Add Cart
DOE25-1064-6-FTC80	1064 nm	6 mm	100 mm	Ø80 μm	$1,300.22	4 weeks	Add Cart
DOE25-1064-6-FTC200	1064 nm	6 mm	100 mm	Ø200 μm	$1,300.22	4 weeks	Add Cart

Polymer Homogenizing DOE, N-BK7 Substrate, Line

Liquid Crystal Polymer/N-BK7 Window
Clear Aperture: 15 × 15 mm
Converts TEM₀₀ Gaussian Beam to Line Uniform Spot

LBTEK Polymer Homogenizing DOE is fabricated on a 1.6 mm thick N-BK7 window with dual substrate layers and a single LCP film layer, featuring a uniform λ/2 retardance across the entire clear aperture. It can shape and homogenize the incident TEM₀₀ Gaussian beam into a line uniform spot, with the line length at the design length and the line width at the diffraction limit. The product is shipped without a mechanical housing. The element features a D-shaped flat edge on one side, parallel to the output line spot, for easy installation and alignment.

DOE25-532-6-FTL250 Under Linear Polarizer

Product Model	Operating Wavelength	Incident spot diameter	Effective Focal Length (EFL)	Output beam spot size	Unit Price	Lead Time
DOE25-532-6-FTL250	532 nm	6 mm	100 mm	250 μm	$1,040.18	4 weeks	Add Cart
DOE25-532-6-FTL1000	532 nm	6 mm	100 mm	1000 μm	$1,040.18	4 weeks	Add Cart
DOE25-1064-6-FTL250	1064 nm	6 mm	100 mm	250 μm	$1,040.18	4 weeks	Add Cart
DOE25-1064-6-FTL1000	1064 nm	6 mm	100 mm	1000 μm	$1,040.18	4 weeks	Add Cart

Polymer Homogenizing DOE, UVFS Substrate, Square

Liquid Crystal Polymer/Fused Silica Window
Clear Aperture: 15 × 15 mm
Converts TEM₀₀ Gaussian Beam to Square Uniform Spot

LBTEK Polymer Homogenizing DOE is fabricated on a 3 mm thick fused silica window with dual substrate layers and a single LCP film layer, featuring a uniform λ/2 retardance across the entire clear aperture. It can shape and homogenize the incident TEM₀₀ Gaussian beam into a square uniform spot. The fused silica substrate DOE homogenizer is more suitable for high-power laser applications compared to the N-BK7 substrate version.

DOE25H-532-6-FTS200 Under Linear Polarizer

Product Model	Operating Wavelength	Incident spot diameter	Effective Focal Length (EFL)	Output beam spot size	Unit Price	Lead Time
DOE25H-532-7-FTS30	532 nm	7 mm	100 mm	30.3×30.3 μm	$1,561.05	today	Add Cart
DOE25H-532-6-FTS50	532 nm	6 mm	100 mm	50×50 μm	$1,561.05	4 weeks	Add Cart
DOE25H-532-7-FTS76	532 nm	7 mm	100 mm	75.8×75.8 μm	$1,561.05	4 weeks	Add Cart
DOE25H-1064-8-FTS29	532 nm	6 mm	100 mm	50×50 μm	$1,561.05	today	Add Cart
DOE25H-1064-7-FTS27	1064 nm	7 mm	100 mm	75.8×75.8 μm	$1,561.05	today	Add Cart
DOE25H-1064-7-FTS30	1064 nm	7 mm	100 mm	30.3×30.3 μm	$1,561.05	4 weeks	Add Cart
DOE25H-1064-7-FTS76	1064 nm	7 mm	100 mm	75.8×75.8 μm	$1,561.05	4 weeks	Add Cart
DOE25H-1064-6-FTS80	1064 nm	6 mm	100 mm	80×80 μm	$1,561.05	4 weeks	Add Cart
DOE25H-1064-6-FTS200	1064 nm	6 mm	100 mm	200×200 μm	$1,561.05	4 weeks	Add Cart

Polymer Homogenizing DOE, UVFS Substrate, Circular

Liquid Crystal Polymer/Fused Silica Window
Clear Aperture: Ø15 mm
Converts TEM₀₀ Gaussian Beam to Circular Uniform Spot

LBTEK Polymer Homogenizing DOE is fabricated on a 3 mm thick fused silica window with dual substrate layers and a single LCP film layer, featuring a uniform λ/2 retardance across the entire clear aperture. It can shape and homogenize the incident TEM₀₀ Gaussian beam into a circular uniform spot. The fused silica substrate DOE homogenizer is more suitable for high-power laser applications compared to the N-BK7 substrate version.

DOE25H-532-6-FTC200 Under Linear Polarizer

Product Model	Operating Wavelength	Incident spot diameter	Effective Focal Length (EFL)	Output beam spot size	Unit Price	Lead Time
DOE25H-532-6-FTC50	532 nm	6 mm	100 mm	Ø50 μm	$1,561.05	4 weeks	Add Cart
DOE25H-1064-6-FTC80	1064 nm	6 mm	100 mm	Ø80 μm	$1,561.05	4 weeks	Add Cart
DOE25H-1064-6-FTC200	1064 nm	6 mm	100 mm	Ø200 μm	$1,561.05	4 weeks	Add Cart

Polymer Homogenizing DOE, UVFS Substrate, Line

Liquid Crystal Polymer/Fused Silica Window
Clear Aperture: 15 × 15 mm
Converts TEM₀₀ Gaussian Beam to Line Uniform Spot

LBTEK Polymer Homogenizing DOE is fabricated on a 3 mm thick fused silica window with dual substrate layers and a single LCP film layer, featuring a uniform λ/2 retardance across the entire clear aperture. It can shape and homogenize the incident TEM₀₀ Gaussian beam into a line uniform spot, with the line length at the design length and the line width at the diffraction limit. The fused silica substrate DOE homogenizer is more suitable for high-power laser applications compared to the N-BK7 substrate version.

DOE25H-532-6-FTL250 Under Linear Polarizer

Product Model	Operating Wavelength	Incident spot diameter	Effective Focal Length (EFL)	Output beam spot size	Unit Price	Lead Time
DOE25H-532-6-FTL250	532 nm	6 mm	100 mm	250 μm	$1,248.19	4 weeks	Add Cart
DOE25H-532-6-FTL1000	532 nm	6 mm	100 mm	1000 μm	$1,248.19	4 weeks	Add Cart
DOE25H-1064-6-FTL250	1064 nm	6 mm	100 mm	250 μm	$1,248.19	4 weeks	Add Cart
DOE25H-1064-6-FTL1000	1064 nm	6 mm	100 mm	1000 μm	$1,248.19	4 weeks	Add Cart