Datasheet

Components & Accessories

LMA-HDF-40/400, Large Mode Area Ho-Doped Double Clad Fiber

Product image of LMA-HDF-40/400, Large Mode Area Ho-Doped Double Clad Fiber

Coherent Large Mode Area (LMA) Ho-doped fibers are optimized for high-power fiber lasers and amplifiers operating around 2 µm. With a 40 µm core diameter and a 400 µm cladding diameter, these fibers deliver exceptional beam quality and high pump conversion efficiency. The NuCOAT fluoroacrylate coating enhances durability, ensuring reliable performance in industrial, medical, and defense applications.

Features

  • Ho-doped core - Designed for 2 µm lasers
  • NuCOAT fluoroacrylate coating - Enhanced environmental durability
  • Large core and cladding - High pump absorption and excellent beam quality
  • Proof tested to > 100 kpsi - Ensures long-term reliability
  • RoHS compliant

Applications

  • High-power CW and pulsed lasers
  • Medical laser systems
  • Military LIDAR systems
  • Material processing
Parameter LMA-HDF-40/400
Optical Specifications
Operating Wavelength 2100 - 2200 nm
Core NA 0.080 ± 0.010
First Cladding NA ≥ 0.46
Cladding Attenuation ≤ 15.0 dB/km @ 810 nm
Cladding Absorption 0.30 ± 0.20 dB/m at 1150 nm
Geometrical & Mechanical Specifications
Cladding Diameter 400.0 ± 10.0 μm
Core Diameter 40.0 ± 4.0 μm
Coating Diameter 550.0 ± 15.0 μm Core
Core Clad Offset ≤ 2.00 μm
Coating Material NuCOAT fluoroacrylate
Prooftest Level ≥ 100 kpsi (0.7 GN/m²)