FC/UPC Square Bare Fiber Adapter

FC/UPC Square Bare Fiber Adapter

The FC/UPC Square Bare Fiber Adapter is designed for quick, reliable, and repeatable connections between a standard FC/UPC connector and a bare optical fiber. It allows direct insertion of stripped optical fibers without epoxy or polishing, providing a convenient solution for temporary testing, measurement, or optical alignment applications.

Constructed with a nickel-plated square metal housing and a high-precision zirconia ceramic alignment sleeve, this adapter ensures low insertion loss, excellent mechanical stability, and precise fiber core alignment. The square design offers enhanced grip and easy mounting on workbenches or test fixtures, making it ideal for laboratory, production, or field use.

Specifications

Key Features

✅ Compatible with standard FC/UPC connectors and bare optical fibers.
✅ Precision zirconia ceramic sleeve for accurate fiber alignment.
✅ Square metal body for firm handling and stability during use.
✅ Provides low insertion loss and high repeatability.
✅ Perfect for optical testing, temporary connections, and R&D applications.

Bare Fiber Adapter User Guide

Step 1: Prepare Materials

Step 2: Strip 15-20mm of the optical fiber coating

Step 3: Wipe the bare fiber clean with industrial alcohol

Step 4: Press down the switch of the bare fiber adapter
(press down the clamp plate for square bare fiber adapters and press down the round button for round bare fiber adapters)

Step 5: Slowly push the bare fiber into the guide hole

Step 6: Use a pen-type fiber optic cutter to cut the excess bare fiber that exposes the ceramic end face.
(The operation is completed by cutting the bare fiber. After use, pull out the fiber and it can be reused)