G - Physics
02
B
G02B 6/28 (2006.01)
Patent
CA 2190075
An optical coupler to be used for optical telecommunications is disclosed, characterized by portions of exposed optical fiber sections located immediately adjacent to and outside the respective clots of the first adhesive agent as viewed from the welded optical fiber section being coated by a third adhesive agent having a Young's modulus smaller than that of the first adhesive agent. It comprises exposed optical fiber sections formed by removing the coating layer of each of a plurality of coated optical fibers for a given length; a welded optical fiber section formed by welding together and stretching portions of said exposed optical fiber sections; an inner reinforcing member accompanying said welded opti- cal fiber section; and an outer reinforcing member housing said exposed optical fiber sections, the welded optical fiber section and the end sections of the coating layers; the inner reinforcing member and said exposed optical fiber sections being held to each other by means of a first adhesive agent; the outer reinforcing member and the exposed optical fiber sections or the coating layers being rigidly held to each other by means of a second adhesive agent.
Fukumura Kazuyuki
Uemura Yasuo
Umehara Etuo
Ridout & Maybee Llp
The Furukawa Electric Co. Ltd.
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