Smart Product Number: LMA-YDF-20/125-9M
Product Number: 1363668
20/125 Ytterbium-Doped LMA Double Clad Fiber
NuGEN9 active fibers offer the most advanced glass composition. This fiber is a Yb-doped Large Mode Area (LMA) active double clad fiber featuring a 20 micron diameter core and 125 micron clad diameter with a low NA (0.080) core. This fiber is ideally suited for applications spanning military, industrial and medical applications. NuGEN9 fibers feature an optimized glass composition enabling higher absorption with superior photodarkening performance. These fibers are proof-tested to 100 kpsi, an industry requirement for long term reliability. NuGEN9 fibers are exclusively offered with Coherent | Nufern's proprietary NuCOAT-FA coating technology with the best wet and dry heat performance available, ensuring excellent preservation of beam quality and extended operating life. The fiber is designed to be precision matched to its passive counterpart ensuring excellent splice compatibility and low loss.
Optical Specifications
Operating Wavelength
1015 – 1115 nm
Core NA
0.080 ± 0.005
First Cladding NA (5%) ≥ 0.46
Cladding Attenuation
≤ 15.0 dB/km @ 1095 nm
Cladding Absorption
5.40 ± 0.60 dB/m at 915 nm
16.50 dB/m near 976 nm
Geometrical & Mechanical Specifications
Cladding Diameter (flat-to-flat) 125.0 ± 1.5 µm
Core Diameter
20.0 ± 1.5 µm
Coating Diameter
245.0 ± 10.0 µm
Coating Concentricity
< 5.0 µm
Core/Clad Offset
≤ 1.00 μm
Coating Material
Low Index Acrylate
Prooftest Level
≥ 100 kpsi (0.7 GN/m²)
Comments
Coating Requirements: Low Index Polymer NuCOAT-FA.
Features & Benefits
NuGEN9 fiber design — Providing higher absorption with superior reliability & photodarkening performance
NuCOAT-FA fluoroacrylate coating — Excellent wet and dry heat performance for extended life in extreme conditions
LMA core design and short amplifier length — Useful for generating high peak powers
“Few” moded core design — Easy to maintain single mode LP01 beam through fiber & components
All fiber proof tested to > 100 kpsi — Critical for ensuring long term reliability when coiling
Typical Applications
Pulsed fiber lasers and amplifiers
Material processing
LIDAR
Non-linear optics / frequency doubling
商品属性 [波长] 1015 - 1115 nm [掺杂类型] yb [芯径大小] 20 µm [首包层直径] 125 µm [数值孔径] 0.080 [光学包层] Double