Smart Product Number: LMA-YDF-20/400-9M
20/400 NuGEN9 Precision Matched Active LMA Double Clad Fiber
NuGEN9 active fibers offer the most advanced glass composition and fiber design and are all precision matched to their passive counterpart ensuring excellent splice compatability and low loss. This fiber is a Yb-doped Large Mode Area (LMA) active double clad fiber featuring a 20 micron diameter core and 400 micron clad diameter with a low NA (0.065) core. This fiber is ideal for high power fiber lasers and amplifiers used in 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 Nufern's proprietary NuCOATFA coating technology with the best wet and dry heat performance available, ensuring excellent preservation of beam quality and extended operating life.
Optical Specifications
Operating Wavelength
1015 – 1115 nm
Core NA
0.065 ± 0.005
First Cladding NA (5%)
≥ 0.46 Core Attenuation
≤ 30.0 dB/km @ 1300 nm
≤ 15.0 dB/km @ 1200 nm
Cladding Attenuation
≤ 15.0 dB/km @ 1095 nm
Cladding Absorption
0.48 ± 0.06 dB/m at 915 nm
Slope Efficiency
> 70.0% @ 915 nm
Geometrical & Mechanical Specifications
Cladding Diameter (flat-to-flat) 400.0 ± 10.0 µm
Core Diameter
20.0 ± 1.5 µm
Coating Diameter
550.0 ± 15.0 µm
Core/Clad Offset
≤ 2.00 μm
Prooftest Level
≥ 100 kpsi (0.7 GN/m²)
Comments
Coating Requirements: Low Index Polymer NuCOAT-FA.
The ultra matched passive fiber is also available - see LMA-GDF-20/400-M+
Features & Benefits
NuGEN9 fiber design — Providing higher absorption with superior reliability & photodarkening performance
NuCOATFA fluoroacrylate coating — Excellent wet and dry heat performance for extended life in extreme conditions
“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
Typical Applications
Monolithic high power lasers & amplifiers
LMA fiber couplers, pump combiners & FBG
High power pump & signal pigtails
Military, industrial and medical
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] 400 µm [数值孔径] 0.065 [光学包层] Double