Adiabatic Soliton Laser

Bednyakova, Anastasia; Turitsyn, Sergei K.

doi:10.1103/physrevlett.114.113901

Cited by 18 publications

(11 citation statements)

References 26 publications

(47 reference statements)

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“…Clear Kelly sidebands are observed inFig. 2(c), being the typical characteristics of soliton fiber lasers[57]-[59]. The full-width-at-half-maximum (FWHM) spectral width of the solitons is ~8.2 nm.Figure 2(d)illustrates the close-up of the data fromFig.…”

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confidence: 82%

Revealing the behavior of soliton buildup in a mode-locked laser

2019

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Real-time spectroscopy based on an emerging time-stretch technique can map the spectral information of optical waves into the time domain, opening several fascinating explorations of nonlinear dynamics in mode-locked lasers. However, the self-starting process of mode-locked lasers is quite sensitive to the environmental perturbation, which causes the transient behavior of laser to deviate from the true build-up process of solitons. Here, we optimize the laser system to improve its stability that suppresses the Q-switched lasing induced by the environmental perturbation. We therefore demonstrate the first observation of the entire build-up process of solitons in a mode-locked laser, revealing two possible ways to generate the temporal solitons. One way includes the dynamics of raised relaxation oscillation, quasi mode-locking stage, spectral beating behavior, and finally the stable single-soliton mode-locking. The other way contains, however, an extra transient bound-state stage before the final single-pulse mode-locking operation. Moreover, we have proposed a theoretical modeling to predict the build-up time of solitons, which agrees well with the experimental result. Our findings can bring real-time insights into ultrafast fiber laser design and optimization, as well as promote the application of fiber laser.

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confidence: 82%

Revealing the behavior of soliton buildup in a mode-locked laser

2019

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“…In case of weak gain, the pulse duration is adiabatically compressed as the peak of the pulse is increased [27,28]. Adiabatic soliton lasers can be realized based on such adiabatic amplification [29]. However, such adiabatic amplification requires a relatively longer length of gain fiber that is detrimental for the lasers, e.g.…”

Section: B Soliton Breathing and Single Pulse Higher Energy Transitionmentioning

confidence: 99%

“…However, such adiabatic amplification requires a relatively longer length of gain fiber that is detrimental for the lasers, e.g. the formation of Kelly sideband, which prevents the generation of higher energy pulses [29]. In most soliton fiber laser cavities, the pulse amplification is not adiabatic but similar to the soliton breathing (high order soliton evolutions) [27,28,30].…”

Section: B Soliton Breathing and Single Pulse Higher Energy Transitionmentioning

confidence: 99%

Impact of Spectral Filtering on Multipulsing Instability in Mode-Locked Fiber Lasers

Zhang

Nakkeeran

et al. 2018

IEEE J. Select. Topics Quantum Electron.

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Abstract-We investigate the impact of spectral filtering in mode-locked fiber lasers with an extended geometrical model. Our iterative model, which includes gain, loss and the pulse shaping effects of chromatic dispersion and selfphase modulation, is used to model the laser cavity dynamics. Simulations show that broadband pulses experience large losses from spectral filtering in the cavity, leading to a number of potential laser instabilities and outcomes such as multi-pulsing, periodic and chaotic states, or a single pulse which transitions to a higher energy state. For narrow band spectral filtering, the laser dynamics is dominated by the gain-loss dynamics in the cavity which causes multi-pulsing. For broadband spectral filtering, the nonlinearity induced spectral reshaping of the single pulse can lead to a discontinuous pulse energy transition that circumvents multi-pulsing. The inclusion of third order dispersion shows that the multi-pulsing instability is induced even in the case of broadband spectral filtering.

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“…In contrast to conservative solitons, DS are stable objects (attractors), which emerge due to a nonlinear balance between energy gain and loss [8]. DS have been discovered in spatially extended systems modeled by partial differential equations in optics [3,5,7,8,[10][11][12], biological systems [3,[13][14][15], plasma physics [3,16] and other fields [17].…”

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confidence: 99%

Temporal Dissipative Solitons in Time-Delay Feedback Systems

et al. 2019

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Localized states are a universal phenomenon observed in spatially distributed dissipative nonlinear systems. Known as dissipative solitons, auto-solitons, spot or pulse solutions, these states play an important role in data transmission using optical pulses, neural signal propagation, and other processes. While this phenomenon was thoroughly studied in spatially extended systems, temporally localized states are gaining attention only recently, driven primarily by applications from fiber or semiconductor lasers. Here we present a theory for temporal dissipative solitons (TDS) in systems with time-delayed feedback. In particular, we derive a system with an advanced argument, which determines the profile of the TDS. We also provide a complete classification of the spectrum of TDS into interface and pseudo-continuous spectrum. We illustrate our theory with two examples: a generic delayed phase oscillator, which is a reduced model for an injected laser with feedback, and the FitzHugh-Nagumo neuron with delayed feedback. Finally, we discuss possible destabilization mechanisms of TDS and show an example where the TDS delocalizes and its pseudo-continuous spectrum develops a modulational instability.

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Adiabatic Soliton Laser

Cited by 18 publications

References 26 publications

Revealing the behavior of soliton buildup in a mode-locked laser

Revealing the behavior of soliton buildup in a mode-locked laser

Impact of Spectral Filtering on Multipulsing Instability in Mode-Locked Fiber Lasers

Temporal Dissipative Solitons in Time-Delay Feedback Systems

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