Datasheet

Components & Accessories

LMA-YDF-25/250-M, Matched Yb-Doped Double Clad Optical Fiber

Product image of LMA-YDF-25/250-M, Matched Yb-Doped Double Clad Optical Fiber

Coherent Large Mode Area (LMA) Yb-doped fibers are optimized for laser and amplifier systems requiring low splice loss and high beam quality. With a 25 µm core diameter and a 250 µm cladding diameter, the M version is precision-matched to passive counterparts, ensuring seamless integration and enhanced performance. The NuCOAT fluoroacrylate coating ensures durability and reliable operation in industrial, medical, and defense applications.

Features

  • Precision-matched (M) design - Ensures low splice loss
  • NuCOAT fluoroacrylate coating - Provides superior environmental durability
  • Optimized for high power - Maintains beam quality
  • Proof tested to > 100 kpsi - Guarantees long-term reliability
  • RoHS compliant

Applications

  • Fiber lasers and amplifiers
  • Material processing
  • LIDAR systems
  • Non-linear optics
Parameter LMA-YDF-25/250-M
Optical Specifications
Operating Wavelength 1060 - 1115 nm
Core NA 0.065 ± 0.005
Core Attenuation ≤ 30.0 dB/km @ 1200 nm
Cladding Attenuation ≤ 15.0 dB/km @ 1095 nm
Cladding Absorption 4.80 dB/m near 975 nm
Cladding NA ≥ 0.46
Geometrical & Mechanical Specifications
Cladding Diameter 250.0 ± 5.0 μm
Core Diameter 25.0 ± 1.5 μm
Coating Diameter 395.0 ± 15.0 μm
Core Clad Offset ≤ 2.00 μm
Coating Material NuCOAT fluoroacrylate
Prooftest Level ≥ 100 kpsi (0.7 GN/m²)