Types of fiber optic couplers include splitters, combiners, X-couplers, trees, and stars, which all include single window, dual window, or wideband transmissions. Fiber optic splitters take an optical signal and supply two outputs. They can further be described as either. This guide will walk you through the most common fiber connector types, explaining their characteristics, advantages, and typical use cases. It was developed by Nippon Telegraph and Telephone (NTT) company. SC is a snap (push-pull coupling) connector with a 2. The connector's outer. There are two main technology types: fused and planar.