Datasheet

Components & Accessories

LMA-YDF-20/400-9M, Matched Yb-Doped Double Clad Fiber

Product image of LMA-YDF-20/400-9M, Matched Yb-Doped Double Clad Fiber

Coherent Large Mode Area (LMA) Yb-doped fibers are optimized for high-power laser and amplifier systems requiring low splice loss and excellent beam quality. With a 20 µm core diameter and a 400 µm cladding diameter, the 9M version ensures seamless integration with active counterparts, enhancing performance and reliability. The NuCOAT fluoroacrylate coating provides environmental durability, making these fibers suitable for industrial, medical, and defense applications.

Features

  • Matched 9M design - Optimized for low splice loss
  • 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
  • Industrial laser systems
  • Medical laser systems
  • Defense applications
Parameter LMA-YDF-20/400-9M
Optical Specifications
Operating Wavelength 1015 - 1115 nm
Core NA 0.065 ± 0.005
Core Attenuation ≤ 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
Cladding NA ≥ 0.46
Slope Efficiency > 70.0%@ 915 nm
Geometrical & Mechanical Specifications
Cladding Diameter 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
Coating Material NuCOAT fluoroacrylate
Prooftest Level ≥ 100 kpsi (0.7 GN/m²)