Most single-mode fibers are terminated before they are spliced to the cable ends using what method?

Most single-mode fibers are terminated before they are spliced to the cable ends using what method?

• A. Soldered connectors
• B. Pigtails
• C. Splice protectors
• D. Mechanical splices

Answer: (C)

Splice protectors are the standard way to terminate and protect a fiber joint before it is connected to the other cable end. After a fusion splice is made, a small heat‑shrink sleeve is placed over the joint and heated so it tightens around the splice. This provides strain relief, environmental sealing, and mechanical protection, which are essential for maintaining the low loss and reliability expected from single‑mode fibers. By keeping the splice from moving or bending excessively and guarding it against moisture and dust, the protector helps preserve optical performance over the life of the link. Soldered connectors and pigtails are alternative termination approaches, but they’re not the typical protective termination used specifically for splices, and mechanical splices refer to a different joining method rather than the termination method for the splice itself.

Splice protectors are the standard way to terminate and protect a fiber joint before it is connected to the other cable end. After a fusion splice is made, a small heat‑shrink sleeve is placed over the joint and heated so it tightens around the splice. This provides strain relief, environmental sealing, and mechanical protection, which are essential for maintaining the low loss and reliability expected from single‑mode fibers. By keeping the splice from moving or bending excessively and guarding it against moisture and dust, the protector helps preserve optical performance over the life of the link. Soldered connectors and pigtails are alternative termination approaches, but they’re not the typical protective termination used specifically for splices, and mechanical splices refer to a different joining method rather than the termination method for the splice itself.