Toric concave mirror laser resonator with a big Fresnel number

High beam quality in a HyBrID copper las

High beam quality in a HyBrID copper laser operating with an unstable resonator made of a concave mirror and a plano-convex BK7 lens

✍ Madalena Alice Priante Gião; Walter Miyakawa; Nicolau André Silveira Rodrigues; 📂 Article 📅 2006 🏛 Elsevier Science 🌐 English ⚖ 216 KB

This paper presents a very simple unstable resonator, made of a concave mirror (total reflector) and a bare plane-convex BK7 lens working as a convex coupling mirror, which is quite efficient for HyBrID copper laser. In addition to a good quality factor ðM 2 ¼ 4:9Þ; experimental results showed that