A theoretical analysis of the temperature sensitivity of a multimode biconical fiber coupler as well as that of a multimode uniform fiber coupler has been given. The results show that a biconical coupler has some advantages over an ordinary fiber coupler as a temperature sensor or as a temperature-independent coupler.
© 1986 Optical Society of America
Yi-Fan Li and John W. Y. Lit, "Temperature effects of a multimode biconical fiber coupler," Appl. Opt. 25, 1765-1769 (1986)