HIGH-POWER SEMICONDUCTOR LASERS AND FIBERS
Products > Fibers > LIEKKI™ High-Power Fibers

LIEKKI™ YTTERBIUM FIBERS
nLIGHT’s ytterbium fiber product series, LIEKKI™ Yb1200, offers extremely high dopant concentrations resulting in short application lengths. Our Direct Nanoparticle Deposition (DND) fiber production technology allows creating fibers with very high homogeneity minimizing clustering and photodarkening. 

LIEKKI™ ytterbium fibers are available in the following fiber types
  • Single mode and large mode area (LMA)
  • Single, double and triple cladding
  • Polarization maintaining (PM) and non-PM

Our LIEKKI™ Yb1200 product series covers the broad application field of ytterbium fibers ranging from low-power preamplifiers to high-average-power pulsed amplifiers and high-continuous wave (CW) power fiber lasers.

Explanation for LIEKKI™ fiber product codes
AABBBB-CC/DDOpt 1 – Opt 2 – Opt 3 AA = Fiber dopant
BBBB = Peak core absorption at 976nm for ytterbium
Peak core absorption at 1530nm for erbium
CC = Core diameter
DD = Cladding diameter
Opt 1 = Double clad/DC
Opt 2 = Polarization maintaining/PM
Opt 3 = High cutoff/HC

For academic users we offer a special product package. Please contact us for more information.
LIEKKI™ Yb1200-4/125
LIEKKI™ Yb1200-4/125 fibers are highly doped single mode ytterbium fibers for low-noise, low-nonlinearity preamplifiers and lasers.
LIEKKI™ Yb1200-6/125
LIEKKI™ Yb1200-6/125 fibers are highly doped single mode ytterbium 
fibers for medium-power fiber laser and amplifier applications.
LIEKKI™ Yb1200-10/125
LIEKKI™ Yb1200-10/125 fibers are highly doped large mode area ytterbium fibers for medium-power fiber laser and amplifier applications.
LIEKKI™ Yb1200-12/125
LIEKKI™ Yb1200-12/125 fibers are highly doped ytterbium fibers for medium-power fiber laser and amplifier applications.
LIEKKI™ Yb1200-20/125
LIEKKI™ Yb1200-20/125 fibers are highly doped ytterbium fibers ideally suited for compact high-average-power pulsed amplifier applications where large mode area and short fiber length are critical for suppression of nonlinear effects.
LIEKKI™ Yb1200-20/400
LIEKKI™ Yb1200-20/400 fibers are highly doped ytterbium fibers for medium-power fiber lasers and amplifiers.
LIEKKI™ Yb1200-25/250
LIEKKI™ Yb1200-25/250 fibers are highly doped ytterbium fibers which feature very high cladding absorption, high efficiency per application length and excellent beam quality.
LIEKKI™ Yb1200-30/250
LIEKKI™ Yb1200-30/250 fibers are highly doped ytterbium fibers which feature very high cladding absorption, high efficiency per application length and excellent beam quality.
LIEKKI™ Yb2000-4/125
LIEKKI™ Yb2000-4/125 fibers are very highly doped ytterbium fibers for low-noise, low-nonlinearity pre-amplifiers and lasers.
EASY SPLICE SOFTWARE
LIEKKI™ EasySplice is complimentary software that provides you with optimal splicing parameters for all LIEKKI™ fibers.

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