The single-mode core of this fiber is doped with ytterbium. It is then surrounded by a silica cladding and covered with a low-index protective coating. The resulting double clad fiber is used for single-mode fiber lasers and amplifiers operating in the 1040 to 1200 nm range.

The fiber enables fiber lasers and amplifiers with good beam profile characteristics, high wall plug efficiencies, compact footprints, superior reliability, and maintenance-free operation. It also accommodates high energies during pulsed operation and at high repetition rates.
Unit of Measure


Core Numerical Aperture

N/A 0.12

Mode Field Diameter

N/A @ 1060 nm, 6 µm

Ytterbium Clad Absorption

N/A @ 915 nm, > 0.5 dB/m

Coating Outer Diameter

N/A 250 µm

How To Order:

Order By Item #

N/A 78756

Order From Location

+45 43 45 8888
Priorparken 611,
DK-2605 Broendby,

Mechanical and Testing Data

Proof Test Level

N/A 100 kpsi0.689 GPa

Typical Applications

N/A Construction of Single-mode Fiber Lasers Emitting at 1040 to 1200 nm


N/A Also specify fiber length in meters.