LC-ST fiber optic pigtail

An LC fiber optic pigtail is a short optical fiber cable with an LC connector on one end and a bare fiber on the other, used for splicing and connecting fiber networks.

Overview

An LC fiber optic pigtail is a short length of optical fiber cable that has one end terminated with an LC connector and the other end left as a bare fiber for splicing. The terminated end can be plugged into devices such as transceivers, switches, routers, or patch panels, while the bare end is designed for fusion or mechanical splicing to a fiber in a trunk cable, providing a reliable and low-loss connection .

Key Features

• Connector Type: LC (Lucent Connector), a small form-factor connector ideal for high-density installations in data centers and LANs .
• Fiber Type: Available in single-mode (OS2) for long-distance, high-bandwidth applications, or multimode for shorter distances .
• Polish Type: UPC (Ultra Physical Contact) or APC (Angled Physical Contact) to reduce back reflection and insertion loss .
• Cable Structure: Typically simplex (single fiber) or sometimes duplex (two fibers), with protective jackets of varying diameters (commonly 2 mm or 3 mm) for durability .
• Length: Common lengths range from 0.5 m to 3 m, depending on installation requirements .

Applications

• Splicing: The bare fiber end is fusion spliced to a fiber in a trunk cable, creating a permanent, high-performance connection.
• Network Termination: Provides a connectorized interface for patch panels or optical equipment.
• High-Density Environments: LC pigtails are preferred in data centers due to their compact size, allowing more connections in limited space .

Advantages

• Low Insertion Loss: Factory-terminated connectors ensure minimal signal loss.
• Reliable Connections: Superior to field-terminated connectors for performance and durability.
• Flexibility: Available in various fiber types, connector types, and lengths to match network requirements .

Considerations

When selecting an LC pigtail, consider:

• Fiber Mode: Single-mode for long-distance, multimode for short-distance applications.
• Connector Polish: UPC for general use, APC for applications sensitive to back reflection.
• Cable Jacket: Choose a diameter and material suitable for the installation environment.
• Length: Ensure sufficient length for splicing and routing without excess slack . LC fiber optic pigtails are essential components in modern fiber optic networks, providing a high-quality, reliable interface for splicing and connecting optical fibers in both enterprise and telecom environments .