The fiber optic quick connector/cold connector is a very innovative field-terminated connector, which contains factory-installed optical fiber, pre-polished ceramic ferrule and a mechanical splicing mechanism. Here we mainly introduce three commonly used fiber optic connection methods. Fiber splice fusion connection (hot melt) This method involves heating and melting the. A fiber optic connector is a mechanical device used to align and join optical fibers, enabling light to pass through with minimal loss. It uses pre-installed index-matching gel or mechanical clamping to align the bare fiber with a short fiber stub inside. The wide application of fiber-to-the-home (FTTH) has promoted the rise of fiber optic fast connectors/cold connectors. Essentially, the fiber ends are fused together with a heat treatment. It is used to connect optical fiber or optical fiber butt pigtail, which is equivalent to making a joint (fiber butt pigtail refers to the butt joint of the fiber core of the optical fiber and the pigtail instead of the pigtail head mentioned in the former), and is used for this kind of cold.