These fibers are designed to operate efficiently at both 1310 and 1550 nm, and the higher NA significantly enhances bend performance. As a result, these fibers are ideal for harsh environment installations where fiber compression is a concern and where low-loss, small bend-radius coiling and winding performance is desired. 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 1310/1550 nm

Cutoff Wavelength

N/A ≤ 1290 nm

Mode Field Diameter

N/A @ 1310 nm, 6.7 ± 0.75 µmnominal @ 1550 nm, 7.5 µm


N/A @ 1310 nm, ≤ 0.75 dB/km@ 1550 nm, ≤ 0.5 dB/km

Numerical Aperture (Nominal)

N/A 0.16

Induced Attenuation

N/A (Due to 10 turns of 15 mm radius) @ 1560 nm, ≤ 0.01 dB

Dimensions/Geometric Properties

Core Diameter (Nominal)

N/A 6.0 µm

Clad Diameter

N/A 80 ± 2 µm

Coating/Buffer Diameter

N/A 165 ± 10 µm

Clad Non-Circularity

N/A ≤ 2.0%

Core/Clad Offset

N/A ≤ 0.5 µm

Coating/Buffer Descriptions

Coating Material

N/A Dual UV 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 ≥ 6 mm

Proof Test Level

N/A ≥ 200 kpsi1.38 GPa

How To Order:

Product Description Code

N/A SMM-D1310B

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 F9002

Typical Applications

N/A Gyroscopes Sensors Tap Couplers WDM Pump/Signal Couplers


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