Title :
Electronic vs thermal index changes in pulsed and CW Yb-doped fiber amplifiers
Author :
Kuznetsov, Maxim S. ; Antipov, Oleg L. ; Fotiadi, Andrei A. ; Mégret, Patrice
Author_Institution :
Inst. of Appl. Phys., Nizhny Novgorod, Russia
Abstract :
This paper aims to compare the contributions of the thermal and electronic mechanisms to the refractive index changes (RIC) induced in the Yb-doped fiber amplifiers under different pumping conditions (cw or pulsed pumping) and amplifying signal behaviour. Experimental and theoretical studies show that RIC dynamics in the controlled fiber were found to be mainly determined by the population dynamics.
Keywords :
optical fibre amplifiers; optical pumping; refractive index; thermo-optical effects; ytterbium; CW fiber amplifiers; amplifying signal behaviour; cw pumping; electronic changes; population dynamics; pulsed fiber amplifiers; pulsed pumping; refractive index changes; thermal index changes; Heating; Indexes; Mathematical model; Optical fiber amplifiers; Optical fiber polarization; Optical fiber testing;
Conference_Titel :
Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference
Conference_Location :
Munich
Print_ISBN :
978-1-4577-0533-5
Electronic_ISBN :
Pending
DOI :
10.1109/CLEOE.2011.5943201
