Open AccessAll-optical switching application based on optical nonlinearity of Yb3+ doped aluminosilicate glass fiber with a long-period fiber gratings pair
Author(s) -
Yune Hyoun Kim,
Nam Su Kim,
Youngjoo Chung,
Un-Chul Paek,
WonTaek Han
Publication year - 2004
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.12.000651
Subject(s) - materials science , optics , optical fiber , fiber laser , dispersion shifted fiber , polarization maintaining optical fiber , fiber bragg grating , fiber , plastic optical fiber , extinction ratio , graded index fiber , photonic crystal fiber , optoelectronics , fiber optic sensor , composite material , physics , wavelength
We propose a new fiber-type all-optical switching device based on the optical nonlinearity of Yb(3+) doped fiber and a long-period fiber gratings(LPG) pair. The all-optical ON-OFF switching with the continuous wave laser signal at ~1556nm in the LPG pair including the 25.5cm long Yb(3+) doped fiber was demonstrated up to ~200Hz upon pumping with the modulated square wave pulses at 976nm, where a full optical switching with the ~18dB extinction ratio was obtained at the launched pump power of ~35mW.