Method of terminating optical fibres.

摘要

Cleavage pt. for terminating optical fibres is selected by: launching light down one end of a monomode fibre having a cladding of depressed refractive index profile; detecting the light at the other end; subjecting part of the fibre to heat and tension to cause a biconical taper with mode coupling in the tapered portion; stopping the tapering and heating when at least one power oscillation of the transmitted light has occurred and the transmission response of the fibre is at a max., and cleaving the central portion of the taper to provide a termination having a relatively narrow far-field distribution.