Datasheet

Components & Accessories

PLMA-GDF-25/400-M, PM Matched Passive Double Clad Optical Fiber

Product image of PLMA-GDF-25/400-M, PM Matched Passive Double Clad Optical Fiber

Coherent's PLMA-GDF-25/400-M fibers are engineered for high-power laser and amplifier systems requiring low splice loss and exceptional beam quality. With a 25 µm core diameter and a 400 µm cladding diameter, the matched (M) design ensures seamless integration with active counterparts. The NuCOAT fluoroacrylate coating provides superior environmental durability, making these fibers suitable for industrial, medical, and defense applications under demanding conditions.

Features

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

Applications

  • High-power CW and pulsed lasers
  • Material processing
  • Medical laser systems
  • Defense laser systems
Parameter PLMA-GDF-25/400-M
Optical Specifications
Operating Wavelength 1060 - 1600 nm
Core NA 0.065 ± 0.005
Core Attenuation ≤ 20.0 dB/km @ 1200 nm
First Cladding NA ≥ 0.46
Cladding Attenuation ≤ 15.0 dB/km @ 1095 nm
Birefringence nominal 3.5 x 10⁻⁴
Geometrical & Mechanical Specifications
Cladding Diameter 395.0 ± 10.0 μm
Core Diameter 25.0 ± 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)