Generation of Vector Soliton Pulses with Graphene Oxide Film in Mode-Locked Erbium-Doped Fiber Laser Cavity
H. Haris, S. W. Harun, P. Yupapin, H. Arof and R. Apsari
We demonstrate the generation of vector soliton in a passively mode-locked fiber laser by employing graphene oxide (GO) film as a passive saturable absorber (SA). The SA film was obtained by mixing the GO and polyethylene oxide (PEO) solution to form a polymer composite, which was converted to film by a drying process. The film was integrated into an Erbium-doped fiber laser (EDFL) cavity to generate a mode-locked fiber laser operating at 1558.9 nm. The vector soliton pulses were obtained at a 12.8 MHz repetition rate and 1.3 ps pulse width due to the phase-locking process between two orthogonal polarization modes as the soliton propagates periodically within a laser cavity. The results show that the vector soliton can be generated using a cost-effective and simple approach based on GO film in mode-locked EDFL cavity.
Keywords: Mode-locking, Vector soliton, passive saturable absorber
PACS: 42.60.Da; 42.70.Hj; 42.60.-v