Open AccessHighly efficient 750 W tapered double-clad ytterbium fiber laser
Author(s) -
В. Н. Филиппов,
Juho Kerttula,
Yu. K. Chamorovskiĭ,
K. M. Golant,
Oleg G. Okhotnikov
Publication year - 2010
Publication title -
optics express
Language(s) - Polish
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.012499
Subject(s) - tapering , materials science , optics , fiber laser , ytterbium , slope efficiency , laser , cladding (metalworking) , double clad fiber , laser power scaling , core (optical fiber) , optical fiber , plastic optical fiber , multi mode optical fiber , composite material , physics , computer graphics (images) , computer science
The results of theoretical and experimental studies of active tapered double-clad fibers, intending the optimization of its imperative parameters--tapering ratio, longitudinal profile, core/cladding diameters ratio, are presented. Using a refined taper geometry we have demonstrated power scaling of a ytterbium fiber laser pumped by low-brightness, cost-effective laser diodes up to 750 W, with 80% efficiency.