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References:

https://starwars.fandom.com/wiki/Lightsaber
https://www.sciencemag.org/news/2018/01/physicists-are-planning-build-lasers-so-powerful-they-could-rip-apart-empty-space
https://iopscience.iop.org/article/10.1088/2058-7058/23/05/23/pdf
https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-18-5-4518&id=195984
https://arxiv.org/pdf/1906.02575.pdf
https://www.youtube.com/watch?v=xSNubaa7n9o
https://www.researchgate.net/publication/330838691_Finally_the_finite-length_lightsabers_of_Star_Wars_are_possible_if_equipped_with_sufficient_energy_capacity_and_good_materials