Which type of optical splitter package resembles a standard fusion splice protector?

The correct choice involves the Fused Biconical Taper (FBT). This optical splitter technology is designed to combine or split optical signals using the principle of light fusion and tapering. The FBT method involves fusing two or more fibers together by precisely tapering and heating them, creating a seamless connection that can efficiently split or combine optical signals.

The similarity to a standard fusion splice protector arises from the way FBT splitters are constructed and the protective measures used to safeguard the fusion splice point. Just like fusion splice protectors, which are used to shield the fragile fusion joint in fiber optics, FBT splitters also require protection from environmental factors to maintain their integrity and performance.

In contrast, other options like the Planar Lightwave Circuit (PLC) are typically used for optical signal processing and may not resemble splice protectors. The design and functionality of optical fiber couplers differ as they are mainly used for light distribution rather than signal splitting, and mechanical splice connectors involve aligning fibers without fusion, thereby differing in both construction and protective measures from FBT splitters.