Datasheet

Components & Accessories

LMA-YDF-30/250-HI-M Plus, Ultra Matched Yb-Doped Double Clad Optical Fiber

Product image of LMA-YDF-30/250-HI-M Plus, Ultra Matched Yb-Doped Double Clad Optical Fiber

Coherent Ultra Matched+ (M Plus) Large Mode Area (LMA) active double clad fibers are designed for high power monolithic fiber lasers and amplifiers. With a 30 µm core diameter and a 250 µm cladding diameter, these fibers are ultra-precisely matched to their passive counterparts, ensuring low splice loss and seamless integration. The NuCOAT fluoroacrylate coating enhances durability, making these fibers ideal for industrial, medical, and defense applications. These fibers support high power levels while maintaining exceptional beam quality.

Features

  • Ultra Matched (M Plus) design - Ensures the lowest possible splice loss
  • NuCOAT fluoroacrylate coating - Superior environmental durability
  • State-of-the-art Yb-doped glass - Optimized for generating high CW powers
  • “Few” moded core design - Maintains single-mode LP01 beam
  • Proof tested to > 100 kpsi - Guarantees long-term reliability
  • RoHS compliant

Applications

  • Short pulse fiber amplifiers and lasers
  • Material processing
  • LIDAR
  • CW fiber amplifiers and lasers
Parameter LMA-YDF-30/250-HI-M-Plus
Optical Specifications
Operating Wavelength 1060 - 1115 nm
Core NA 0.062 ± 0.005
Mode Field Diameter 21.5 ± 1.5 μm @ 1060 nm
Core Attenuation ≤ 30.0 dB/km @ 1200 nm
Cladding Absorption 2.10 ± 0.20 dB/m at 915 nm
Cladding NA ≥ 0.46
Geometrical & Mechanical Specifications
Cladding Diameter 250.0 ± 3.0 μm
Core Diameter 30.0 ± 2.0 μm
Coating Diameter 395.0 ± 15.0 μm
Core Clad Offset ≤ 1.20 μm
Coating Material NuCOAT fluoroacrylate
Prooftest Level ≥ 100 kpsi (0.7 GN/m²)