Laser Beam Expanders: Insights and Applications

Laser beam expanders are pivotal components in various fields, enhancing the quality and functionality of laser beams. These devices modify beam characteristics such as diameter and directionality, making them crucial for scientific research, industrial processes, and advanced technological applications. 

Categories of Beam Expanders

Beam expanders are generally classified into two principal types: Galilean and Keplerian. Each type offers distinct features tailored to specific needs.

• Galilean Beam Expanders

• Structure: This type consists of a convex lens and a concave lens arranged to achieve magnification. The design avoids internal convergence points, which helps prevent heat accumulation and minimizes aberration.
• Advantages: Galilean expanders are compact, making them suitable for high-power laser systems where heat management is crucial. Their design facilitates easy integration into various systems without complex adjustments.

 To read the entire article, visit Shanghai Optics.