LIEKKI® Tm1500-6/125DC(-PM)

LIEKKI® Tm1500-6/125DC(-PM) are highly doped Thulium-doped fibers with demonstrated good efficiencies at wavelengths of 2µm. The fibers are designed without pedestal and are available as both non-Polarization Maintaining and Polarization Maintaining versions. Passive fibers with matched mode field diameter are available in Q3 2025.

Features

• Direct Nanoparticle Deposition: Industry leading fiber deposition process 

• Design: Cladding pumped design with pedestal

• Performance:

  Thulium concentrations optimized for highest efficiencies (>60% at 1970nm)
  non-PM and PM versions
  Single mode operation

• Reliability: Double cladding fiber coating proven to operate up to 150˚C and in extreme humidity

• Compatibility: nLIGHT passive fibers matched for minimal splice loss 

Applications

• Low to medium power cladding pumped fiber lasers and amplifiers

• Pulsed and CW applications in industrial and medical lasers

• LIDAR

Available versions

Download Datasheet Tm1500-6/125DC(-PM)
Matched passive fibers Passive-6/125 0.23NA, Passive-6/125DC 0.23NA, Passive-6/125-PM 0.23NA, Passive-6/125DC-PM 0.23NA

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