원래 이름 기록: Consorzio Nazionale Interuniversitario per le Telecomunicazioni; Camgraphic S.r.l.

There is provided an optical coupler comprising: a first waveguide () comprising a tapering portion (); an intermediate waveguide () comprising: a first tapering portion () at a first end of the intermediate waveguide (), the first tapering portion () of the intermediate waveguide () being optically coupled to the tapering portion () of the first waveguide (), and a second tapering portion () at a second end of the intermediate waveguide (); and a second waveguide (), wherein the second tapering portion () of the intermediate waveguide () is optically coupled to the second waveguide (). A method for fabricating the optical coupler is also provided.