MoS2-clad microfibre laser delivering conventional, dispersion-managed and dissipative solitons

Abstract

Molybdenum disulfide (MoS2), whose monolayer possesses a direct band gap, displays promising applications in optoelectronics, photonics, and lasers. Recent researches have demonstrated that MoS2 has not only a significant broadband saturable absorption performance, but also a higher optical nonlinear response than graphene. However, MoS2 shows much lower optical damage threshold owing to the poorer thermal conductivity and mechanical property. Here, we exploit a MoS2-clad microfibre (MCM) as the saturable absorber (SA) for the generation of ultrashort pulses under different dispersion conditions. The improved evanescent field interaction scheme can overcome the laser-induced thermal damage, as well as take full advantage of the strong nonlinear effect of MoS2. With the MCM SA, conventional, dispersion-managed, and dissipative solitons are generated around 1600 nm in Er-doped fibre lasers with anomalous, near-zero, and normal cavity dispersions, respectively. Our work paves the way for applications of 2D layered materials in photonics, especially in laser sources.

Dry-transfer technique for polymer-free single-walled carbon nanotube saturable absorber on a side polished fiber

“…Saturable absorbers (SAs) play a crucial role in the fiber lasers passive pulse generation. Nowadays, there is a number of novel materials like graphene [1,2], black phosphorus [3,4], topological insulators [5] and transition-metal dichalcogenides (MoS 2 [6], MoSe 2 [7]) that have been thoroughly investigated as an alternative of a standard SESAM for an ultrafast fiber optics. In parallel, carbon nanotubes have been widely explored and demonstrated good performance because of their excellent properties, such as wideband operation, fast recovery time, stability and low cost [8].…”

Nonlinear Saturable and Polarization-induced Absorption of Rhenium Disulfide

“…The gapless linear dispersion of the Dirac electron maintains the wavelength-independent absorption for graphene whose nonlinear optical response has been also demonstrated in a broad operation bandwidth513141516. Motivated by the significant development of graphene, the saturable absorption of transition metal dichalcogenides (TMDs) has also attracted increasing attentions because of their enhanced broadband and ultrafast nonlinear optical responses, such as molybdenum disulfide (MoS 2 ), tungsten disulphide (WS 2 ) and molybdenum diselenide (MoSe 2 )617181920.…”

CNT-based saturable absorbers with scalable modulation depth for Thulium-doped fiber lasers operating at 1.9 μm

“…This approach was already investigated with CNTs32, as well as with other two-dimensional SA materials (e.g. graphene33, topological insulators34, and transition-metal dichalcogenides, like MoS 2 35). …”