Author:
Olivier Michel,Gauthier Jean-Christophe,Paradis Pascal,Dumas Marie-Frédérique,Bernier Martin,Vallée Réal
Abstract
A source of tunable femtosecond solitons up to 4.8 µm is presented. The pulses emitted by a 2.8 µm mode-locked fiber laser are amplified in an Er-doped zirconium fluoride fiber and undergo soliton self-frequency shift in a small-core indium fluoride fiber.