Pulse breaking through spectral filtering in dispersion-managed fiber lasers

Alsaleh, M.; Uthayakumar, T.; Felenou, E. Tchomgo; Dinda, P. Tchofo; Grelu, Philippe; Porsezian, K.

doi:10.1364/josab.35.000276

Cited by 23 publications

(14 citation statements)

References 32 publications

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“…One of dual pulses takes on a shape like rectangular NLP, the other is a Gaussian-shaped pulse, which is similar to the experimental results of [37]. The unstable multipulse state can be attributed to the SFE [20], gain bandwidth limit [19], amplification of dispersive wave [22], energy competition [18], or peak power clamping effect [18]. The large PSA leads to the increase of peak power that can be tolerated in the cavity, thus spectral broadening caused by SPM interact with SPE entails pulse breaking.…”

Section: Generation Of Ds and Dsrsupporting

confidence: 83%

“…Multipulse pattern may result from nonlinear phase delay, peak power clamping effect [18] and SFE [19]. When the SFE interacts with spectral broadening caused by SPM to a critical point, the laser breaks into an unstable state, which may cause the generation of multipulse pattern or other quasi-stable state [20][21][22]. Recently, people experimentally demonstrated that the multipulse also exist in DSR regime [23,24].…”

Section: Introductionmentioning

confidence: 99%

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Simulation for Generation of Several Types of Pulses in an Yb-Doped Mode-Locked Fiber Laser

et al. 2020

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We numerically demonstrated six types of pulses in an Yb-doped fiber laser, including dissipative soliton (DS), dissipative soliton resonance (DSR), multipulse, noise-like pulse (NLP), breathing soliton and soliton explosion. The influence of cavity conditions on DSR pulse properties is discussed systematically. It is found that the change of the saturation power of saturable absorber (SA) could transform DSR into various types of pulses. Saturation power of SA and injected signal affect the number and shape of multipulse. Furthermore, the influence of the saturation power of SA and intra-cavity dispersion on pulse type is diagrammed intuitively. By properly adjusting the transmission curve of SA, breathing soliton and soliton explosion can be obtained as well.

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Section: Generation Of Ds and Dsrsupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Simulation for Generation of Several Types of Pulses in an Yb-Doped Mode-Locked Fiber Laser

et al. 2020

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“…Both the pump and the signal co-propagate in the LP 01 fundamental transverse mode of the EDF. The power distribution along the fibre is then given by the following rate equations 53–56 :where P p and P s designate the pump and signal power at a position z in the fibre, is the absorption cross section of erbium ions at the 980-nm pump wavelength, and are the absorption and emission cross sections at the signal optical frequency v s , n 1,2 ( z ) represent the fractional erbium population distribution between ground and excited states, and Γ s,p are the modal overlap factors. We take , the cross-section frequency dependence of and are taken from 57 , and N 0 = 6.8 × 10 24 m −3 .…”

Section: Methodsmentioning

confidence: 99%

Optical soliton molecular complexes in a passively mode-locked fibre laser

et al. 2019

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Ultrashort optical pulses propagating in a dissipative nonlinear system can interact and bind stably, forming optical soliton molecules. Soliton molecules in ultrafast lasers are under intense research focus and present striking analogies with their matter molecules counterparts. The recent development of real-time spectral measurements allows probing the internal dynamics of an optical soliton molecule, mapping the dynamics of the pulses’ relative separations and phases that constitute the relevant internal degrees of freedom of the molecule. The soliton-pair molecule, which consists of two strongly bound optical solitons, has been the most studied multi-soliton structure. We here demonstrate that two soliton-pair molecules can bind subsequently to form a stable molecular complex and highlight the important differences between the intra-molecular and inter-molecular bonds. The dynamics of the experimentally observed soliton molecular complexes are discussed with the help of fitting models and numerical simulations, showing the universality of these multi-soliton optical patterns.

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“…Conventional solitons (CSs) in fiber lasers are formed with the balance between anomalous-dispersion and Kerr nonlinearity [4]- [8]. It is a consensus that CSs in fiber lasers will split or collapse with high pulse-energy due to the limited gain bandwidth [9]- [12] or the peak-clamp-effect [13]- [15]. Dispersive-waves (DWs) radiation with discrete frequencies are shed by the CS in a fiber laser due to the pulse shaping towards a fundamental soliton under periodic perturbations in the cavity, which are known as Kelly sidebands [4].…”

Section: Introductionmentioning

confidence: 99%

“…In the past years, the splitting of a CS into a dual-pulse is attributed to two mechanisms, one is limited spectral bandwidth [9]- [12], the other is the peak-clamped-effects [13]- [15]. The former means that the pulse with strong energy and broadband spectrum suffers spectral-filtering-loss by the limited gain bandwidth or other filters.…”

Section: Introductionmentioning

confidence: 99%

A Chaotic State in the Transition From Single Toward Multiple Pulse for Soliton Fiber Lasers

Han

Shu

2020

IEEE Photonics J.

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High-order soliton in anomalous-dispersion ultrafast fiber lasers is rarely researched due to its intrinsic instability in dissipative systems. For the first time, we numerically demonstrate the ultrafast pulse in fiber lasers will deviate from the fundamental soliton under strong pulse energy before splitting into multiple pulses. High-order soliton effect results in the single-pulse splitting into the dual-pulse. Sustaining switching between the single-and dual-pulse induced by the high-order soliton evolution and cross-gainmodulation was observed and analyzed. The results offer significant and novel insights for the soliton shaping dynamics and instability in anomalous-dispersion fiber lasers.

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Pulse breaking through spectral filtering in dispersion-managed fiber lasers

Cited by 23 publications

References 32 publications

Simulation for Generation of Several Types of Pulses in an Yb-Doped Mode-Locked Fiber Laser

Simulation for Generation of Several Types of Pulses in an Yb-Doped Mode-Locked Fiber Laser

Optical soliton molecular complexes in a passively mode-locked fibre laser

A Chaotic State in the Transition From Single Toward Multiple Pulse for Soliton Fiber Lasers

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