In field installations, how are most single-mode fibers terminated?

In field installations, how are most single-mode fibers terminated?

• A. Splices
• B. Pigtails
• C. Bare fiber ends
• D. Mechanical sleeves

Answer: (B)

In field terminations for single-mode fiber, the standard approach is to splice the field fiber to a pre-terminated pigtail. A pigtail is a short length of fiber already finished with a connector on its far end and prepared in a factory, so you simply fusion-splice the field fiber to the pigtail. This creates a ready-to-plug connector on the end of your installation, delivering low loss and high reliability while avoiding the difficulties of field-assembling a connector onto bare fiber. Bare fiber ends are fragile and prone to contamination and poor end-face quality, while mechanical sleeves can be faster but usually introduce higher loss and less robust performance than a pigtail that’s been fusion-spliced and factory-tested.

In field terminations for single-mode fiber, the standard approach is to splice the field fiber to a pre-terminated pigtail. A pigtail is a short length of fiber already finished with a connector on its far end and prepared in a factory, so you simply fusion-splice the field fiber to the pigtail. This creates a ready-to-plug connector on the end of your installation, delivering low loss and high reliability while avoiding the difficulties of field-assembling a connector onto bare fiber. Bare fiber ends are fragile and prone to contamination and poor end-face quality, while mechanical sleeves can be faster but usually introduce higher loss and less robust performance than a pigtail that’s been fusion-spliced and factory-tested.