532nm laser beam expander is an optical beam shaping component designed for green laser sources, widely used in laser marking, cutting, welding, and scientific research applications. By enlarging the beam diameter, it effectively reduces beam divergence and improves far-field focusing performance and spot quality.

Key Advantages

This beam expander series is optimized for the 532nm wavelength, utilizing high-quality fused silica substrate and high-performance anti-reflection coatings to achieve transmission rates exceeding 98%. The Galilean optical design eliminates internal focal points, ensuring safety and stability in high-power laser applications. The air-spaced construction without adhesives enables high laser damage threshold performance.

Product Specifications

The product line includes both fixed magnification and continuously variable types. Fixed magnification beam expanders offer ratios from 2X to 20X, while variable models support 1-3X or 2-8X continuous adjustment. Mounting interfaces are compatible with standard M30×1 or M32×0.75 threads for seamless integration with galvo scanners and focusing lens systems. Select models feature adjustable divergence to fine-tune beam collimation.

Typical Applications

532nm beam expanders are ideal for green laser processing scenarios, including PCB/FPC precision cutting, solar cell scribing, glass screen processing, medical device manufacturing, and high-precision laser marking. The green wavelength offers excellent absorption for metals such as copper and gold, as well as brittle materials like glass.

Technical Specifications

The design achieves transmitted wavefront error of λ/10 or better, ensuring superior beam transmission quality. Excellent thermal stability and high damage threshold design make these expanders highly reliable for medium to high-power laser systems.