Real‐Time Observation of Double‐Hopf Bifurcation in an Ultrafast All‐PM Fiber Laser

Krupa, Katarzyna; Kardaś, Tomasz M.; Stepanenko, Yuriy

doi:10.1002/lpor.202100646

Cited by 23 publications

(7 citation statements)

References 45 publications

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“…Compared with the recent work where 11 fiber reflectors with Au-film-coated facets are connected in series through flanges, 29 the CFLM based on fiber fusion operation should have better reusability for superresolution spectroscopy applications. The weak saturable absorption effect in each FLM, also known as a nonlinear optical loop mirror, 47 provides a platform for the analysis of cascaded effects for pulsating operation. Further changes to the fiber loop section can provide more functions, such as a stronger saturable absorption effect with active gain 48 and optical switching with injected control light.…”

Section: Discussionmentioning

confidence: 99%

Random fiber laser using a cascaded fiber loop mirror

Shen,

Li,

et al. 2024

Adv. Photon. Nexus

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Random fiber lasers (RFLs) have attracted extensive attention due to their rich physical properties and wide applications. Here, a RFL using a cascaded fiber loop mirror (CFLM) is proposed and presented. A CFLM with 10 fiber loop mirrors (FLMs) is simulated by the transfer matrix method and used to provide random feedback. Multiple spikes are observed in both the simulated and measured reflection spectra. The RFL operates in a single longitudinal mode near the threshold and a time-varying multilongitudinal mode at higher pump powers. The RFL exhibits a time-varying radio-frequency spectrum. The Lévy-Gaussian distribution transition is observed, as in many RFLs. The operation mechanism of the lasing longitudinal modes and the impact of complex mode competition and mode hopping on the output characteristics are discussed through experimental and theoretical results. In this study, we unveil an artificial random feedback structure and pave another way for the realization of RFLs, which should be a platform for multidisciplinary studies in complex systems.

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Section: Discussionmentioning

confidence: 99%

Random fiber laser using a cascaded fiber loop mirror

Shen,

Li,

et al. 2024

Adv. Photon. Nexus

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“…[129][130][131] A pulsating solitons involve short-period pulsation (SPP), long-period pulsation (LPP), or multiple-period pulsation (MPP). [132] A major difference between SPP and LPP is the bifurcation mechanism, such that the pump power is decreased from the region of stationary mode-locking for the LPP, [18,133] whilst the SPP always occurs beyond the stationary mode-locking region. [132,134] Moreover, the MPP reveals a complex intertwined bifucation region of the SPP and LPP.…”

Section: Soliton Bifurcationmentioning

confidence: 99%

Real‐Time Investigation of Ultrafast Dynamics through Time‐Stretched Dispersive Fourier Transform in Mode‐Locked Fiber Lasers

Lau

Cui

Liu

et al. 2023

Laser & Photonics Reviews

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Real‐time investigation in mode‐locked fiber lasers (MLFLs) is important to understand the ultrafast dynamics before, during, and after the formation of stable laser pulses. However, the experimental measurement of these dynamics is restricted by the resolution of conventional oscilloscopes. The development of a time‐stretched dispersive Fourier transform (TS‐DFT) technique provides the shot‐to‐shot measurement of mapping the spectral information of an ultrashort optical pulse into time‐stretched waveform in the MLFL. Here, the recent progress and development of various fascinating dynamics in the MLFL, including the study of birth, evolution, and extinction process in MLFL, different types of MLFL, and complex motion dynamics in MLFL, have been reviewed. The issues and challenges encountered in this research area are discussed and several recommendations are suggested to overcome these problems. The integration of the TS‐DFT technique is expected to provide deeper insight into the real‐time investigation of various dynamics in the MLFL by displaying fascinating phenomenon and revealing unexplored trajectories.

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“…In ultrafast laser experiments, LPPs often manifest when the pump power is reduced from the region of stationary mode locking, [25,27,28] whereas SPPs usually occur beyond the stationary mode locking region. [16,29] This marked difference indicates different bifurcation mechanisms involved in either LPP or SPP.…”

Section: Introductionmentioning

confidence: 99%

Spectral Pulsations of Dissipative Solitons in Ultrafast Fiber Lasers: Period Doubling and Beyond

Wang

Coillet

Hamdi

et al. 2023

Laser & Photonics Reviews

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Period doubling is a universal bifurcation of central importance in all disciplines of nonlinear science, which generally signals the existence of chaotic dynamics in the vicinity of the system parameters. Although observed in diverse ultrafast laser configurations, there is still no consensus on its physical origin. Real‐time spectral characterization techniques have recently allowed revisiting pulsating dynamics, from period‐2 to long‐period pulsations. Following a contextual review, this article presents a variety of bifurcation sequences entailing the spectral pulsations of dissipative solitons. These experiments, using ultrafast fiber lasers operated in both chromatic dispersion regimes, are confronted with numerical simulations to demonstrate that self‐phase modulation represents a general mechanism triggering period‐2 bifurcations. In addition, by ramping up the pump power, original sequences of period‐doubling bifurcations intertwined with more complex bifurcations are presented, where entrainment phenomena are unveiled. These findings provide a more general understanding of the period‐doubling bifurcation in ultrafast laser systems while highlighting their potentially intricate combinations with complex bifurcations, which may be exclusively observable from the spectral domain.

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Real‐Time Observation of Double‐Hopf Bifurcation in an Ultrafast All‐PM Fiber Laser

Cited by 23 publications

References 45 publications

Random fiber laser using a cascaded fiber loop mirror

Random fiber laser using a cascaded fiber loop mirror

Real‐Time Investigation of Ultrafast Dynamics through Time‐Stretched Dispersive Fourier Transform in Mode‐Locked Fiber Lasers

Spectral Pulsations of Dissipative Solitons in Ultrafast Fiber Lasers: Period Doubling and Beyond

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