Fiber optic ceramic ferrule diameter

Ceramic fiber optic ferrules typically have outer diameters of 1. 25 mm or 2. 5 mm, with inner bore diameters ranging from 80 µm to 1100 µm depending on fiber type and application.

Outer Diameter (OD)Standard ceramic ferrules are commonly manufactured with outer diameters of 1. 25 mm (LC type) and 2. 5 mm (FC, SC, ST types), which are compatible with corresponding fiber optic connectors and mating sleeves.

The O

D is precisely controlled, often with tolerances as tight as ±0. 0005 mm for singlemode ferrules to ensure proper alignment and minimal signal loss. Inner Diameter (Bore Size)The inner diameter (ID) of ceramic ferrules is designed to match the optical fiber cladding size.

Typical bore sizes include: Singlemode fibers (125 µm cladding): bore diameters from 126 µm to 128 µmMultimode fibers: bore diameters from 128 µm up to 440 µm for standard applications, and up to 1100 µm for custom ferrules The ID is polished to a precision of 0. 001 mm in concentricity and 0. 0005 mm in eccentricity for high-performance singlemode ferrules.

Length and Customization

Ceramic ferrules are available in lengths ranging from 2. 5 mm to 22. 5 mm, with options for extended lengths for specialized applications such as optogenetics or high-density assemblies.

Custom ferrules can include features like multi-step bores, countersinks, flats, grooves, or chamfers to meet specific alignment or mechanical requirements.

Material and Precision

Most ceramic ferrules are made from zirconia or alumina, providing non-magnetic, thermally stable, and wear-resistant properties. Zirconia ferrules are particularly valued for their tight tolerances and precise coaxiality, which are critical for low-loss optical connections.

Summary

Outer Diameter (OD): 1. 25 mm or 2. 5 mm (standard)Inner Diameter (ID): 80 µm to 1100 µm depending on fiber typeLength: 2.

5 mm to 22. 5 mmMaterial: Zirconia or aluminaPrecision: Concentricity ±0. 001 mm, eccentricity ±0.

0005 mm for singlemode ferrules These specifications ensure that ceramic ferrules provide accurate fiber alignment, low insertion loss, and compatibility with standard optical connectors.