Designed for multi-kilowatt fiber laser systems, this ytterbium-doped optical fiber features a 21 μm mode-field diameter and a 400 μm cladding diameter to deliver high-power performance. Its high absorption enables shorter fiber lengths, while increased higher-order mode loss helps achieve higher transverse-mode instability thresholds. Additionally, the fiber offers a high stimulated Brillouin scattering threshold, supporting stable, efficient operation in demanding high-power laser applications.
Designed for multi-kilowatt fiber laser systems, this ytterbium-doped optical fiber features a 21 μm mode-field diameter and a 400 μm cladding diameter to deliver high-power performance. Its high absorption enables shorter fiber lengths, while increased higher-order mode loss helps achieve higher transverse-mode instability thresholds. Additionally, the fiber offers a high stimulated Brillouin scattering threshold, supporting stable, efficient operation in demanding high-power laser applications.
| Product Description |
25/400 Yb-doped Optical Fiber
|
||
| Feature |
Min
|
Typical
|
Max
|
| Optical Performance | |||
| Mode Field Diameter @ 1070 nm calculated from Aeff |
20 µm
|
21 µm
|
22 µm
|
| Cladding NA |
0.46
|
||
| Cladding Absorption @ 915 nm |
0.50 dB/m
|
0.55 dB/m
|
0.60 dB/m
|
| Core Concentricity |
1 µm
|
||
| Optical-Optical Efficiency @ 1070 nm |
80%
|
||
| TMI Threshold @ 1070 nm |
3.0 kW
|
||
| Optimal Starting Bend Diameter |
9 cm
|
11 cm
|
12 cm
|
| Mechanical Performance | |||
| Equivalent Cladding Diameter |
385 µm
|
400 µm
|
415 µm
|
| Cladding Shape |
Octagonal
|
||
| Cladding Diameter |
535 µm
|
550 µm
|
565 µm
|
| Coating Material |
Low Index Polymer
|
||
| Proof Test Level |
100 kpsi
|
||
| Order by Part Number |
8000161
|
||
| NOTE | Specifications outlined above are for prototypes under development. Product specification is subject to change. | ||
For additional information please contact your sales representative. You can also visit our website at www.lightera.com or call 1-888-FIBERHELP (1-888-342-3743) USA or 1-770-798-5555 outside the USA. For a full list of our certifications, visit our website.
Lightera reserves the right to make changes to the product(s) described in this document at any time without notice. This document is for informational purposes only and is not intended to modify or supplement any Lightera warranties or specifications relating to any of its products or services.
Compare features, sizes, models to find the perfect option for you
