Datasheet

Components & Accessories

LMA-GDF-30/250-M Plus, High-Performance Passive Double Clad Fiber

Product image of LMA-GDF-30/250-M Plus, High-Performance Passive Double Clad Fiber

Coherent Large Mode Area (LMA) high-performance passive double clad fibers are specifically designed for high-power laser systems. With a 30 µm core diameter and a 250 µm cladding diameter, the M Plus version offers tighter optical and geometric tolerances to optimize beam quality and reduce splice loss. The advanced NuCOAT fluoroacrylate coating enhances durability, ensuring reliable performance under demanding environmental conditions.

Features

  • High-performance M Plus design - Ensures optimal optical performance
  • NuCOAT fluoroacrylate coating - Enhanced environmental durability
  • 30 µm core and 250 µm cladding - Suitable for high power applications
  • Proof tested to > 100 kpsi - Guarantees reliability
  • RoHS compliant

Applications

  • High-power fiber lasers
  • Material processing
  • Medical and defense laser systems
Parameter LMA-GDF-30/250-M-Plus
Optical Specifications
Operating Wavelength 1060 - 1600 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
First Cladding NA 0.46
Cladding Attenuation ≤ 15.0 dB/km @ 1095 nm
Geometrical & Mechanical Specifications
Cladding Diameter 247.0 ± 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)
Clad Non-Circularity ≤ 0.5 %