![Beam quality, explained by RP Photonics Encyclopedia; laser beam quality, M2 factor, ISO Standard 11146, divergence, nonlinear frequency conversion Beam quality, explained by RP Photonics Encyclopedia; laser beam quality, M2 factor, ISO Standard 11146, divergence, nonlinear frequency conversion](https://www.rp-photonics.com/img/caustic.png)
Beam quality, explained by RP Photonics Encyclopedia; laser beam quality, M2 factor, ISO Standard 11146, divergence, nonlinear frequency conversion
![Beam quality, explained by RP Photonics Encyclopedia; laser beam quality, M2 factor, ISO Standard 11146, divergence, nonlinear frequency conversion Beam quality, explained by RP Photonics Encyclopedia; laser beam quality, M2 factor, ISO Standard 11146, divergence, nonlinear frequency conversion](https://www.rp-photonics.com/previews/beam_quality.png)
Beam quality, explained by RP Photonics Encyclopedia; laser beam quality, M2 factor, ISO Standard 11146, divergence, nonlinear frequency conversion
![PDF] Comparison of ND : YAG laser beam quality between free running and Q-switched modes | Semantic Scholar PDF] Comparison of ND : YAG laser beam quality between free running and Q-switched modes | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/32db55f7e63500ccaa4a2e9ffd46988a10be8580/4-Figure3-1.png)