532nm Top Hat Diffractive Beam Shaper DOEs
The 532nm Top Hat Diffractive Beam Shaper DOEs is a diffractive optical element specifically designed for 532nm wavelength Nd:YAG solid-state lasers. Coligh specializes in manufacturing flat-top beam shapers.
532nm Top Hat Diffractive Beam Shaper DOEs Discription
The 532nm Top Hat Diffractive Beam Shaper DOEs is a diffractive optical element specifically designed for 532nm wavelength Nd:YAG solid-state lasers. Coligh specializes in manufacturing flat-top beam shapers. Our 532nm top hat diffractive beam shaper utilizes diffraction effects to transform input Gaussian-distributed laser beams into uniformly energy-distributed circular spots. This product finds extensive applications in aesthetic skin treatments and laser material processing.
532nm Top Hat Diffractive Beam Shaper DOEs Product Features
Our currently produced 532nm top hat beam shaper features the following characteristics:
- Specifically optimized for the 532nm wavelength and Nd:YAG lasers, it generates a circular spot with high uniformity and minimal energy fluctuation within the spot.
- Diffraction efficiency exceeds 95%, maximizing laser energy utilization.
- Our proprietary optical design ensures sharp beam edges and well-defined contours.
- Beyond the 532nm model, we are currently developing top hat beam shapers for 755nm and 1064nm wavelengths.
- Spot shapes are available in both circular and square configurations.
532nm 532nm Top Hat Diffractive Beam Shaper DOEs Beam Spot

Lateral Intensity Profile Comparison of the 532 nm Diffractive Beam Shaper Beam Spot

Coligh 532nm Top Hat Diffractive Beam Shaper DOEs Custom Capability
| Customization Item | Description and Options |
|---|---|
| Working Wavelength | Can be designed for single or multiple wavelengths, covering 200 nm – 20 μm (e.g., 1064 nm, 755 nm, 532 nm, etc.) |
| Input Beam Parameters | Adapt to different laser outputs: beam diameter, mode quality (M²), divergence angle, intensity distribution (Gaussian, quasi-Gaussian, multimode, etc.) |
| Output Beam Shape | Circular, square, rectangular, ring-shaped, and other custom special shapes |
| Beam Size | Can be customized according to customer size requirements |
| Uniformity Level | Typically ±5% uniformity, can be adjusted based on customer precision requirements |
| Edge Steepness | Edge transition zone customizable, usually 2%–5% of beam diameter, adjustable according to customer needs |
| Structure | Diffractive DOE type |
| Material | Fused silica and silicon, can also be selected according to customer requirements |
| Coating | Anti-reflection coating within the 200 nm – 20 μm range |
| Working Distance | Freely adjustable output working distance, compatible with far-field/near-field optical designs |
| Power Handling Capacity | Supports from mW-level to kW-level lasers |
532nm Top Hat Diffractive Beam Shaper DOEs Application
- Medical Laser Aesthetics
The flat-top beam shaper is central to high-end medical aesthetics. The 532nm laser can treat vascular lesions such as port-wine stains and spider angiomas. The 532nm flat-top beam shaper DOE can be integrated into medical laser equipment, converting a Gaussian beam into a spot with uniform energy coverage. This ensures target vessels are heated and coagulated evenly, effectively treating vessels of varying diameters. - Laser Material Processing
In manufacturing solar panels or flexible circuit boards, traditional Gaussian beams deliver excessive energy that risks burning through substrates. The 532nm top hat beam shaper ensures uniform energy distribution by generating circular or rectangular DOEs of specified dimensions. This guarantees consistent energy exposure across the entire spot area, enabling uniform and controllable ablation.








