This optical fiber with a NA of 0.21 operates efficiently at 1550 nm for enhanced bend performance.

Unit of Measure

Optical Properties


N/A Single-Mode

Operating Wavelength

N/A 1550 nm

Cutoff Wavelength

N/A ≤ 1500 nm

Mode Field Diameter

N/A @ 1550 nm, 6.0 ± 0.75 µm


N/A @ 1550 nm, ≤ 1 dB/km

Numerical Aperture (Nominal)

N/A 0.21

Dimensions/Geometric Properties

Core Diameter (Nominal)

N/A 5.3 µm

Clad Diameter

N/A 80 ± 2 µm

Coating/Buffer Diameter

N/A 100 ± 4 µm

Clad Non-Circularity

N/A ≤ 2.0%

Core/Clad Offset

N/A ≤ 0.75 µm

Coating/Buffer Descriptions

Coating Material


Operating Temperature

N/A -65 to +300 ºC

Mechanical and Testing Data

Short-Term Bend Radius

N/A ≥ 5 mm

Long-Term Bend Radius

N/A ≥ 6 mm

Proof Test Level

N/A ≥ 150 kpsi1.03 GPa

How To Order:

Product Description Code

N/A SMM-G1550J2

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 F9697-03

Typical Applications

N/A Military Cables Oil and Gas Applications Small form sensors and devices that will experience exceptional environments


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