✨ What makes laser beam expanders so special? Why would you want to increase the diameter of a laser?

🔎 It definitely seems a little counterintuitive since in a lot of applications you're trying to focus a laser beam to the smallest possible spot

🤓 This video covers the 3 main benefits of beam expanders: minimizing divergence, eventually minimizing focused spot size, and decreasing power density



#Optics #Photonics #STEM #Science #Physics

@PhysicsStation