Patent ID: 8634690

Claim:
A subsea fibre-optic penetrator configured for arrangement in a penetrator feed-through formed in a wall of a penetrator housing, the subsea fibre-optic penetrator comprising: a plurality of through-going optical fibres in a metallic main body member with at least one through bore, wherein a plurality of optical fibres are directly affixed in the main body member by an integral body of cast glass material in one of the through bores, such that the plurality of optical fibres are encased by the integral body of cast glass material, wherein the main body member comprises a portion of an outer profile adapted for metal-metal sealing against an inner surface of a first axial portion of the penetrator feed-through, and an attachment portion that rotates relative to the main body member of the penetrator, wherein the attachment portion is configured for insertion into a second axial portion of the penetrator feed-through, and wherein a radially exterior surface of the attachment portion is configured to interact with a radially interior surface of the second axial portion of the penetrator feed-through to secure the main body member in the first axial portion of the penetrator feed-through and the attachment portion in the second axial portion of the penetrator feed-through.