Natividad, J. C., H. H. Cerecedo Núñez, and P. Padilla Sosa. “Study of the Propagation of a Light Beam at the Exit of a Single-Mode and Multimode Optical Fiber”. Revista Mexicana De Física E, vol. 18, no. 1 Jan-Jun, Jan. 2021, pp. 28-34, doi:10.31349/RevMexFisE.18.28.