Datasheet

Components & Accessories

LMA-TDF-25P/400-HE, Large Mode Area Tm-Doped Fiber

Product image of LMA-TDF-25P/400-HE, Large Mode Area Tm-Doped Fiber

Coherent Large Mode Area (LMA) Tm-doped fibers are optimized for high-power laser and amplifier systems operating at ~2 µm. Featuring a 25 µm core diameter and a 400 µm cladding diameter, the HE version offers enhanced performance in demanding industrial, medical, and defense environments. The NuCOAT fluoroacrylate coating ensures environmental durability, making these fibers suitable for consistent operation under extreme conditions.

Features

  • Enhanced HE design - Optimized for high power operation
  • NuCOAT fluoroacrylate coating - Provides superior environmental durability
  • 400 µm cladding diameter - Supports high pump absorption
  • Proof tested to > 100 kpsi - Guarantees long-term reliability
  • RoHS compliant

Applications

  • High-power CW and pulsed lasers
  • Eye-safe medical lasers
  • Military laser systems
  • Material processing
Parameter LMA-TDF-25P/400-HE
Optical Specifications
Operating Wavelength 1900 - 2100 nm
Core NA 0.09
Cladding Attenuation ≤ 15.0 dB/km @ 860 nm
Cladding Absorption 0.60 ± 0.10 dB/m at 1180 nm
Birefringence 3.6 dB/m at 793 nm N/A
Cladding NA 0.46
Geometrical & Mechanical Specifications
Cladding Diameter 400.0 ± 15.0 μm
Core Diameter 25.0 ± 2.5 μm
Coating Diameter ± 20.0 μm
Coating Material Low Index Polymer
Prooftest Level ≥ 100 kpsi (0.7 GN/m²)