The fast-growing deployment of optical fiber in industrial, avionic, military and transportation applications are leading to the increasing use of optical connectors that provide low insertion loss, ease-of-use and, more important, serviceability. Connector contaminants are the leading cause of power loss and signal degradation, often requiring the continuous need for cleaning. For this reason, DIAMOND has developed a modular, single-mode lensed-ferrule designed to minimize or combat these factors. The new DIAMOND Expanded Beam (XB) lensed ferrule interconnect series provides a non-contact connection that ensures reliable and low maintenance optical connections with insensitivity to dirt and debris.