An optical adaptor for mounting to a receptacle to optically couple connectorized optical cables comprises an assembly of an optical extension comprising an optical lens to provide an optical bridging path between a first and a second one of the connectorized optical cables to optically couple the first and the second connectorized optical cable. The assembly of the optical extension has a first side to optically couple the first connectorized optical cable to the optical lens and a second side to optically couple the second connectorized optical cable to the optical lens. A mounting element is configured to receive the assembly of the optical extension and to mount the optical adaptor to the receptacle.