Abstract
We have demonstrated an ultrafast mode-locked pulses generation by sandwiching graphene thin film between fiber ferrules in a simple erbium-doped fiber laser (EDFL) ring cavity setup. The incorporation of graphene thin film acted as a saturable absorber (SA) and had generated a stable mode locked pulse with repetition rate of 8.3 MHz, narrowest pulse duration of 1.38 picoseconds and 1558.8 nm wavelength.
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