Two - to - one - an optical coupler, which d - shaped plastic light guide fibers (pofs) is used, bidirectional optical communications link, which the two - to - one - plastic light guide fiber - optical coupler is used and method

摘要

D - shaped plastic light guide fibers are used, in order to obtain a two - to - one - optical coupler to form. The d - shaped plastic light guide fibers are produced by means of an extrusion process, which is to be carried out at relatively low cost and which with a relatively high production can be carried out by means of set. The d - shaped plastic fibers are bound together light guide, in order to form a coupler end face, which has a generally circular cross-sectional area. The coupler end face, at an end surface of a main light guide fiber - plastic, which in general in a cross-sectional shape is circular. The resulting d - shaped two - to - one - optical - plastic light guide fiber - of the couplers have a relatively low insertion loss and a relatively high optical coupling efficiency.