Graphdiyne-decorated microfiber based soliton and noise-like pulse generation

Abstract

Graphdiyne has an inborn band gap energy, where the minimal band gap is about from 0.46 to 1.22 eV, which shows great potential in ultrafast laser generation. In this work, we fabricate a graphdiyne-decorated microfiber and demonstrate its saturable absorption characteristics experimentally. This device is used as a saturable absorber to generate the conventional soliton and noise-like pulse in an erbium-doped mode-locked fiber laser. The conventional soliton with a spectral bandwidth of 2.45 nm can switch into noise-like pulse with 37.14 nm bandwidth by adjusting the pump power and the polarization controller. For the noise-like pulse, the mode-locked state has excellent stability with 2.17 nJ maximum pulse energy and 283 fs coherent peak duration. This work indicates that graphdiyne could be a remarkable nonlinear photonic device to explore the dynamics of various mode-locked pulses.

Functional Graphdiyne for Emerging Applications: Recent Advances and Future Challenges

“…GDY, regarded as a promising carbon material, has garnered particular attention in light-matter interactions by virtue of its tunable E g , high carrier mobility and large 𝜋-conjugation compared to most optical materials. [267,[292][293][294][295][296] In recent years, to further improve the NLO properties (e.g., laser modulation, [85] second harmonic generation (SHG), [136] stability, [58] Kerr nonlinearity [297] ) of GDY, comprehensive experimental exploration on NLO properties of functional GDY-based nanoarchitectures have been rapidly developed. For example, in 2022, Xu et al [136] reported on a PVP/tetraphenylethylene (TPE)-modified GDY nanocomposite film (PVP/TPE-GDY) that showed a favorable NLO SHG response.…”

2.1 μm Band Dissipative Soliton Resonance Mode-Locked Ho-Doped Tunable Fiber Laser

“…The pump power is too high to hold on one soliton in quantity according to the theory of soliton area. Therefore, the single pulse usually can bear lower energy in some extent [9], [10].…”

Dynamics of dissipative soliton and conventional soliton in passively mode‐locked erbium‐doped fiber laser

“…In addition, NLP has a wide spectrum and high peak power, which attracts the attention of researchers studying supercontinuum and high energy pulse generation 43 . Ma et al 44 fabricated graphene‐decorated microfiber and obtained NLP using it, which indicates the great potential of NLP. Li et al 45 obtained broadband NLP by dispersion and nonlinearity management in ytterbium‐doped fiber lasers.…”