These fibres are designed to operate efficiently at both 1310 and 1550 nm, and the higher NA enhances bend performance. Various coatings and buffer sizes are offered to meet environmental requirements and size constraints.
Unit of Measure

Optical Properties


N/A Single-mode

Operating Wavelength

N/A 1550 nm

Cutoff Wavelength

N/A ≤ 1310 nm

Mode Field Diameter

N/A @ 1310 nm, 6.7 ± 1.0 µm@ 1550 nm, 7.5 ± 1.0 µm


N/A @ 1310 nm, ≤ 0.75 dB/km

Numerical Aperture (Nominal)

N/A 0.16

Dimensions/Geometric Properties

Core Diameter (Nominal)

N/A 6.0 µm

Clad Diameter

N/A 125 ± 2 µm

Coating/Buffer Diameter

N/A 250 ± 15 µm

Clad Non-Circularity

N/A ≤ 2.0%

Core/Clad Offset

N/A ≤ 1.0 µm

Coating/Buffer Descriptions

Coating Material

N/A Carbon/Dual Acrylate

Operating Temperature

N/A -40 to +85 ºC

Mechanical and Testing Data

Short-Term Bend Radius

N/A ≥ 4 mm

Long-Term Bend Radius

N/A ≥ 4 mm

Proof Test Level

N/A ≥ 200 kpsi1.38 GPa

Ordering Information

Product Description Code

N/A SMB-D1310 C/Acry 200 kpsi

Order From Location

1.888.438.9936 toll-free in the United States and Canada
1.860.678.0371 from outside the U.S.A.
55 Darling Drive
Avon, CT 06001, USA

Order By Item #

N/A BF06631

Typical Applications

N/A High-Application-Stress and Tight-Coil Applications High-Humidity Environments Long Lifetime Requirements


N/A Buffer Color Buffer Diameter Buffer Material Cabling Metalization Proof Test Termination