Bernabeu Martínez, EusebioNavarrete Fernández, María Cruz2023-06-202023-06-201994-090030-4026https://hdl.handle.net/20.500.14352/58927©1994 Wissenschaftliche Verlag GMBH.The study of an optical network can be simplified with the help of signal flow graph theory. In this work a brief overview of this theory, and its application to some simple optical networks is given. The graph theory is particularly useful in the obtainment of complicated network response. A study of a three-branch all-fibre optic interferometer is shown in this paper.journal articlemetadata only access535OpticsÓptica (Física)2209.19 Óptica Física