Supported by the National Natural Science Foundation of China under Grant No 61705183;the Central University Special Fund Basic Research and Operating Expenses under Grant No GK201702005;the Natural Science Foundation of Shaanxi Province under Grant No 2017JM6091;the Fundamental Research Funds for the Central Universities under Grant No 2017TS011
Using the reduced graphene oxide(rGO) as a saturable absorber(SA) in an Er-doped fiber(EDF) laser cavity,we obtain the Q-switching operation. The rGO SA is prepared by depositing the GO on fluorine mica(FM) us...
A mode-locked erbium doped fiber laser(EDFL) is demonstrated using the vanadium oxide(V2O5) material as a saturable absorber(SA). The V2O5 based SA is hosted into poly ethylene oxide film and attached on fiber f...
Supported by the University of Malaya under Grant Nos PG173-2015B and PG004-2016A
We demonstrate a passively Q-switched erbium-doped fiber laser (EDFL) using a copper nanoparticle (CuNP) thin film as the saturable absorber in a ring cavity. A stable Q-switched pulse operation is observed as the...
A harmonic dark pulse generation in an erbium-doped fiber laser is demonstrated based on a figure-of-eight configuration. It is found that the harmonic dark pulse can be shifted from the fundamental to the 5th order h...
Supported by the National Natural Science Foundation of China under Grant Nos 61275075 and 61077048, the Natural Science Foundation of Beijing under Grant No 4112042, and the Specialized Research Fund for the Doctoral Program of Higher Education under Grant No 20120009110032.
Based on the fundamental harmonic phase delay, a new definition of fundamental harmonic fractional delay (FHFD) is proposed to evaluate slow light with the consideration of signal distortion, to eliminate the depend...