A subsea plug connector part for a subsea wet-mateable connector includes a receptacle connector part and a plug connector part, the plug connector part has a plug back end, a plug front end and an interface. The interface includes a first cold separable joint element at one end. The plug front end includes a second cold separable joint element. The first cold separable joint element and second cold separable joint element are adapted to join the interface to the plug front end.

An optical fiber feed-through connector for optically coupling an end portion of an optical fiber cable with a non-feed-through optical fiber connector includes a feed-through duct engaging portion having a body member and a compression fitting portion configured to radially compress a portion of the body member around the free end portion of the duct and a feed-through housing portion configured to be operatively coupled to the feed-through duct engaging portion so as to allow the end portion of the optical fiber cable to be slidingly fed through the feed-through housing portion. The feed-through engaging portion is configured to permit the end portion of the optical fiber cable to be slidingly fed through both the duct and the feed-through duct engaging portion, and the feed-through duct engaging portion and the feed-through housing portion are configured to permit the optical fiber cable to be pushed or pulled through the duct and the feed-through housing portion after the feed-through duct engaging portion is operatively coupled to the feed-through housing portion.

Optical fiber connections and their applications in downhole assemblies are described herein. The downhole assembly includes a well completion element with an end that couples with a corresponding well completion element. An optical fiber extends along at least a portion of the well completion element and transmits an optical signal using a first mode. The well completion element includes an optical fiber connector that is coupled to the optical fiber. The connector also includes a mode converter that receives the optical signal from the optical fiber and converts the optical signal from the first mode to a second larger mode. This second larger mode may be more robustly communicated to a corresponding optical fiber connector affixed to the corresponding well completion element.

A flushing arrangement for flushing a surface of a wet-mateable connector for subsea use is provided. The flushing arrangement has a cartridge adapted to form a chamber around the surface to be flushed prior to flushing. The cartridge has a sealing portion adapted to be sealed against a part of the connector. An inlet port for receiving a fluid from a fluid source and an outlet port for discharging a fluid are provided. Plural flow channels are formed in the cartridge, the plural flow channels comprising flow channels providing a fluid connection between the inlet port and the chamber for enabling a flow of fluid into the chamber and flow channels providing a fluid connection between the chamber and the outlet port for enabling a flow of medium out of the chamber.

A wet mate optical connector in combination with a wave division multiplexer, there being a plurality of input fiber optic cables on an input side of the multiplexer and a fiber optic cable on an output side of the multiplexer connected for providing multiplexed optical signals from the input cables to the wet mate connector.

A fiber optic connector is disclosed that includes a plug body having a plug end and a connector core that mounts within the plug body. The connector core includes a ferrule subassembly including a ferrule, a ferrule hub that attaches to the ferrule, a spring holder and a connector spring. The ferrule sub-assembly is assembled with the connector spring pre-compressed to an initial compressed state prior to mounting the connector core within the connector body. The plug body and the core are configured such that the connector spring is moved from the initial compressed state to a final compressed state when the connector core is loaded in the plug body. In certain examples, tuning features can be integrated into the connector core.

A system for irradiation of a vascular space and its contents is presented. An adapter device having a vascular access end and an optical interface end can include a waveguide affixed within a waveguide lumen and extending outwardly through the vascular access end. The optical interface end includes a tapered terminus configured to engage with a cavity of an optical connector adapter, creating an optical interface between the waveguide of the adapter device and a waveguide of a light or radiation source. The adapter device enables the simultaneous administration of radiation and exogenous fluids to a patient while maintaining the optical interface isolated from any fluids.

Optical fiber connections and their applications in downhole assemblies are described herein. The downhole assembly includes a well completion element with an end that couples with a corresponding well completion element. An optical fiber extends along at least a portion of the well completion element and transmits an optical signal using a first mode. The well completion element includes an optical fiber connector that is coupled to the optical fiber. The connector also includes a mode converter that receives the optical signal from the optical fiber and converts the optical signal from the first mode to a second larger mode. This second larger mode may be more robustly communicated to a corresponding optical fiber connector affixed to the corresponding well completion element.

A module for use in a hardware platform for networking, computing, and/or storage includes a printed circuit board assembly having a primary side and a secondary side, wherein the primary side includes more physical space, in a vertical direction extending out from the printed circuit board assembly, than the secondary side; electrical and/or optical components disposed on the primary side of the printed circuit board assembly; and a secondary side heatsink located on and extending from the secondary side, wherein the secondary side heatsink is disposed to one of i) an electrical and/or optical component disposed on the secondary side, and ii) an optical component disposed on the primary side, for thermal management.

The present invention provides an epoxy-less optical fiber termination. More specifically, the present invention provides an epoxy-less optical fiber termination comprising a waveguide termination having an optical fiber spliced to a stub protruding from the waveguide termination and having a strain relief disposed about the stub and the optical fiber. Additionally, the strain relief may be filled with an epoxy fill to provide additional support to the optical fiber. The present invention may be used to terminate an optical fiber joining devices in an optical communications network.