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Homogenizing DOE (Diffractive Optical Element) products use diffractive optics and spatial light modulation principles to shape and uniformly distribute laser energy, converting Gaussian beams into flat-top profiles such as square, rectangular, circular, or line shapes. Compared to traditional refractive homogenizers, they offer a compact planar structure, high diffraction efficiency, excellent beam uniformity, and superior energy utilization, with flexible customization in wavelength, beam shape, and output size.

  • Polymer Homogenizing DOE
  • Collimation and Homogenization Converter

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Polymer Homogenizing DOE

  • The fast-axis orientation of liquid crystal molecules is engineered according to the optical design, providing λ/2 phase retardation.
  • Capable of generating square, circular, and line-shaped flat-top beam profiles.
  • High diffraction efficiency, excellent uniformity, high damage threshold, and sharp beam edges.
  • Customizable beam shapes and output sizes.
  • Operating Wavelengths: 532 nm and 1064 nm
  • Output Beam Profiles: Square, Round, and Line

Collimation and Homogenization Converter

  • Material Structure: Liquid Crystal Polymer / N-BK7 Window / Linear Polarizer Film (three-plate flat structure with mechanical housing)
  • High beam uniformity with long propagation distance
  • Low sensitivity to incident beam polarization
  • Generates flat-top beams using spatial light attenuation principles
  • Operating Wavelengths: 532 nm, 633 nm
  • Available Incident Beam Diameters: 2 mm, 4 mm, 6 mm

Specifications

Parameter Polymer Homogenizing DOE Collimation & Homogenization Converter
Product Type Diffractive Optical Element (DOE) Spatial Attenuation Beam Homogenizer
Working Principle Geometric phase modulation (DOE) Local spatial light attenuation
Optical Structure LCP film between N-BK7 or UVFS windows LCP + N-BK7 window + linear polarizer (three-plate structure)
Beam Input Type Gaussian beam (TEM00, M² < 1.3) Collimated laser beam
Output Beam Profile Square / circular / line flat-top Flat-top (long-distance propagation)
Uniformity High High
Edge Quality Sharp flat-top edges Smooth uniform profile
Diffraction / Shaping Efficiency High diffraction efficiency Attenuation-based shaping (high uniformity output)
Polarization Sensitivity Design-dependent Low sensitivity
Operating Wavelengths 532 nm, 1064 nm 532 nm, 633 nm
Substrate / Materials N-BK7 or UV fused silica (UVFS); LCP film N-BK7 window; LCP; linear polarizer film
Phase Retardation λ/2 (engineered LCP fast-axis orientation) Not phase-based (attenuation method)
Incident Beam Diameter 6 mm, 7 mm 2 mm, 4 mm, 6 mm
Output Beam Diameter Typical options (µm): 30.3×30.3, 50×50, 75.8×75.8, 80×80, 200×200, 250, 1000
(Customizable)
2 mm, 4 mm, 6 mm
Form Factor Planar flat optical element 25.4 mm × 3.0 mm plate (in mechanical housing)
Mounting Custom optical integration Standard SM1 lens tube compatible
Damage Threshold High (laser-grade materials) Suitable for laser illumination / imaging setups
Propagation Distance Near to mid-field beam shaping Optimized for long-distance flat-top output
Customization Wavelength, beam shape, beam size, phase design Wavelength and beam diameter options
Typical Applications Laser processing, micromachining, biomedical optics, scientific research Imaging, uniform illumination, optical measurement, long-distance laser processing
Brand LBTEK LBTEK

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