Open AccessGeneration of high energy square-wave pulses in all anomalous dispersion Er:Yb passive mode locked fiber ring laser
Author(s) -
Georges Semaan,
Fatma Ben Braham,
Mohamed Salhi,
Yansong Meng,
Faouzi Bahloul,
François Sanchez
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.008399
Subject(s) - optics , fiber laser , materials science , mode locking , laser , dispersion (optics) , self phase modulation , pulse (music) , nonlinear optics , physics , detector
We have experimentally demonstrated square pulses emission from a co-doped Er:Yb double-clad fiber laser operating in anomalous dispersion DSR regime using the nonlinear polarization evolution technique. Stable mode-locked pulses have a repetition rate of 373 kHz with 2.27 µJ energy per pulse under a pumping power of 30 W in cavity. With the increase of pump power, both the duration and the energy of the output square pulses broaden. The experimental results demonstrate that the passively mode-locked fiber laser operating in the anomalous regime can also realize a high-energy pulse, which is different from the conventional low-energy soliton pulse.