LIEKKI™ Er20-4/125 fibers are highly doped erbium fibers designed for C- and L-band Metro, CATV and DWDM amplifiers, and amplified spontaneous emission (ASE) sources. High erbium concentration reduces the required application fiber length and nonlinear effects, making these fibers ideal for small-size or high-bit rate applications.
LIEKKI™ Er20-4/125 fibers are currently only available as high-cut-off (Er20-4/125HC) fibers.
