Single- and multi-soliton generation in figure-eight mode-locked fibre laser with two active media

Non-local and local temporal cavity soliton interaction in delay models of mode-locked lasers

“…3(a) where the peak power of the first TCS is larger than that of the second one. Similar bound states were observed experimentally in a NOLM-NALM figure-of-eight ML laser in [15]. Fig.…”

“…It has been shown that in the case of non-local TCSs interaction due gain depletion and slow recovery apart from the usual repulsion leading to the development of HML regime an attractive interaction is also possible. It has been demonstrated numerically that when the distance between two attractively interacting TCS becomes sufficiently small an incoherent closely packed TCS bound state similar to that observed experimentally in [15] can be formed, This bound state having a similarity with the bound state reported in a Haus master equation model of a ML laser with a slow saturable absorber [6] is weakly oscillating and affected by both the non-local and local interaction. Local interaction, unlike the non-local one, depends strongly on the phase difference of the interacting TCSs.…”

“…Being well separated from one another TCSs can interact via their exponentially decaying tails. Their interaction in ML lasers was studied in a number of publications using experimental, numerical and combined analytical and numerical tools [4,6,[9][10][11][12][13][14][15][16]. Many of these studies were performed within the framework of the mean-field Haus master equations for the case where the gain was either adiabatically eliminated or constant in time.…”

Supercontinuum comb generated by soliton molecule pulse laser injecting into a nonlinear amplifying loop mirror

“…The numerical investigation demonstrates the SM formation can refer to the direct soliton-soliton interaction as the oscillating tails overlapped, and the SMs can stably exist in the cavity when phase differences are 0, π, and ± π/2. Heretofore, various SMs have been exemplified in mode-locked fiber lasers based on nonlinear polarization rotation (NPR) [13], nonlinear optical loop mirror (NOLM / NALM) [14,15], real saturable absorbers (SAs) (e.g., graphene [16], carbon nanotubes [17,18], MoS 2 / fluorine mica Langmuir Blodgett film [19]), nonlinear multimode interference effect [20], and spatiotemporal mode-locking [21] et al In Ref. [22], the generation and propagation of various SMs were summarized, and pointed out that the SMs can be formed with fundamental unit of conventional solitons, stretched pulses, parabolic pulses, or gain-guided solitons.…”

Manipulation of Soliton Bunches Generated From a Polarization-Route-Assisted Vector Fiber Laser

“…Soliton bunch, as a typical and attractive inter-soliton behavior, has been reported in many mode-locked fiber lasers. Stable soliton bunch, consist of numerous solitons, can be regarded as a unit and a localized wave [22][23][24][25][26]. It is a naturally suitable data carrier for data encoding in optical communication system, allowing an increase in the bit-rate of data transmission.…”