Dark pulse emission of a fiber laser

Abstract

We report on the dark pulse emission of an all-normal dispersion erbium-doped fiber laser with a polarizer in cavity. We found experimentally that apart from the bright pulse emission, under appropriate conditions the fiber laser could also emit single or multiple dark pulses. Based on numerical simulations we interpret the dark pulse formation in the laser as a result of dark soliton shaping.

Observation of Bright-Dark Soliton Pair in a Fiber Laser With Topological Insulator

“…Since 1991, various passive mode-locking schemes, such as the nonlinear polarization rotation [2]- [5], nonlinear amplifying loop mirror [6], semiconductor saturable absorber mirror [7], carbon nanotubes [8], graphene [9]- [11], topological insulators [12], and MoS 2 [13]- [14], have been used to realize the soliton operation. So far, several kinds of soliton have been observed in the optical fiber system, such as bright soliton, dark soliton [15], similariton [16], dissipative soliton [17], and so on. Interestingly, dark-dark, bright-bright, even dark-bright soliton pairs may also exist due to the interactions between the solitons, according to the soliton theory in [1].…”

Orthogonally polarized bright–dark pulse pair generation in mode-locked fiber laser with a large-angle tilted fiber grating

“…Relied on dissipative four-wave mixing method, the generation of dark soliton train in a self-induced modulation instability laser was experimentally demonstrated by Sylvestre et al [15]. Then, Zhang et al realized dark solitons in an all-normal dispersion fiber ring laser using the nonlinear polarization rotation (NPR) technique [16]. Taking advantage of the modulation instability induced in a fiber loop cavity, the dark soliton fiber laser with repetition rates increased as high as 280 GHz has recently been demonstrated [17].…”

11-fs dark pulses generated via coherent absorption in plasmonic metamaterial

“…Since their first observation [1], dark pulses have attracted considerable attention, especially in the fields of solitons [2,3], x-ray spectroscopy [4], nonlinear optics [5], Bose -Einstein condensation [6], optical communications [5], generation of Kerr combs [7] and coherent quantum control of optical transitions in atoms [8]. The generation of dark pulses of few hundreds of femtoseconds to nanoseconds duration has been demonstrated by various methods [3,[9][10][11][12][13]. These methods includes, spectral filtering by spatially patterned amplitude and phase masks [3], complex manipulation of regimes of ytterbium-doped fiber ring laser [14] and various other lasers with saturable absorbers based on carbon nanotubes [11], topological insulators [15], Antimony telluride films [16] and InGaAs:Be, Er doped multi-quantum wells [10].…”