Fiber optic pigtail end face

A fiber optic pigtail has a factory-terminated connector on one end (the connector end) and a bare fiber on the other end (the splicing end).Connector End vs Bare Fiber EndA fiber optic pigtail is a short optical fiber cable designed for splicing into a larger fiber network. One end of the pigtail is factory-terminated with a polished connector, such as LC, SC, ST, or FC. This connector end is ready to plug into active equipment, optical distribution frames (ODFs), or patch panels, providing low insertion loss and high return loss due to factory precision polishing and testing . The other end of the pigtail is bare fiber, meaning it has no connector. This bare fiber end is intended for fusion or mechanical splicing to the incoming fiber cable in the field. This allows for a permanent, low-loss connection between the pigtail and the main fiber network .Practical ImplicationsInstallation: The connector end is immediately usable for device connections, while the bare fiber end must be spliced into the network.Testing: The connector end can be tested for insertion loss and return loss before installation, whereas the bare fiber end is tested after splicing.Flexibility: Pigtails allow factory-quality connectors to be integrated into field-installed fiber networks without the need for on-site connector polishing, saving time and ensuring reliability . In summary, when referring to the "end face" of a fiber optic pigtail, the connector end is the polished, factory-terminated side for equipment connection, and the bare fiber end is the side used for splicing into the network. This distinction is critical for proper installation and network performance.