Temporal solitons in a coherently driven active resonator

Englebert, Nicolas; Arabí, Carlos Mas; Parra‐Rivas, Pedro; Gorza, Simon-Pierre; Léo, François

doi:10.1038/s41566-021-00807-w

Cited by 50 publications

(29 citation statements)

References 42 publications

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“…Conversely, in a laser without injection, the saturated gain is equal to the intracavity loss and an additional mechanism is required to ensure the stability of the pulse in the presence of noise. Lastly, we recall that coherent driving extends the existence of solitons to regions where laser solitons do not exist, as evidenced in Figure 4(b) by the large section of stable soliton formation that extends below G 0 = 1 [17].…”

mentioning

confidence: 76%

“…Here we theoretically show that an injected continuous wave (cw) signal seamlessly leads to mode-locking in fiber lasers, through the formation of ultrastable solitons, without the need for any additional intracavity mechanism. In connection to our recent results on soliton formation in active resonators pumped below the lasing threshold [17], we call them active cavity solitons (ACSs). ACSs exist in the regime where the saturated incoherent gain is lower than the intracavity loss.…”

mentioning

confidence: 99%

“…As examples of trajectories in the (S eff , ∆ eff ) plane, we use parameters which correspond to our recent experimental results [17]. In that configuration, the smallsignal gain is lower than the intracavity loss (no lasing) and (S eff , ∆ eff ) can be defined for all detunings ∆.…”

mentioning

confidence: 99%

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Mode-locking induced by coherent driving in fiber lasers

Arabí¹,

Englebert²,

Parra‐Rivas³

et al. 2022

Preprint

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The generation of stable short optical pulses in mode-locked lasers is of tremendous importance for many applications. Mode-locking is a broad concept that encompasses different processes enabling short pulse formation. It typically requires an intracavity mechanism that discriminates between single and collective mode lasing, which can be complex and sometimes adds noise. Moreover, known mode-locking schemes do not guarantee phase stability of the carrier wave. Here we theoretically propose that injecting a detuned signal seamlessly leads to mode-locking in fiber lasers. We show that phase-locked pulses, akin to cavity solitons, exist in a wide range of parameters. In that regime the laser behaves as a passive resonator due to the non-instantaneous gain saturation.

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confidence: 76%

mentioning

confidence: 99%

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Mode-locking induced by coherent driving in fiber lasers

Arabí¹,

Englebert²,

Parra‐Rivas³

et al. 2022

Preprint

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“…When the electromagnetic field is spatially limited (as in optical fibres), temporal solitons develop, and the pulse form (in time) Because dispersion balances nonlinear effects, nothing changes. [22]. Nonlinear processes (self-focusing) balancing out diffraction would create spatial solitons [23][24][25] When the electromagnetic field is not locally restricted yet the form of the pulse in space does not change with the transmission.…”

Section: Optical Solitonmentioning

confidence: 99%

A Theoretical Study of the Supercontinuum Generation for the Photonic Crystal Fibre

jasim¹,

Al-Aboody²

2022

Proceedings of 2nd International Multi-Disciplinary Conference Theme: Integrated Sciences and Technologies, IMDC-IST 2021, 7-9

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This work describes how numerical simulations based on the generalized nonlinear Schrödinger equation (GNLSE) have opened the way for a comprehensive physical understanding of the fundamental complex dynamics of supercontinuum generation (SCG) and Soliton fission (SC). SC was generated in optical fibres and fibre lasers that pumped by watt and kilowatt pulse sources, as well as in continuous-wave sources (CW) Light sources with increased spontaneous emission. An efficient approach for creating a continuous-wave source of soliton fission in the optical fibres pumped by CW light has been discovered. The ability to generate supercontinuum opens the door to a wide range of applications, from medicine to telecommunications.

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“…Also named Cavity Solitons [21], LSs were observed in broad-area VCSELs coherently driven by an external field [22] and in an external-cavity laser configuration coupled to a saturable absorber [14,23,24]. More recently, the concept of LSs has been extended to the time domain: temporal LSs are individually addressable pulses traveling back and forth inside the cavity [25][26][27][28]. Temporal LSs have been implemented in VCSELs operated in regimes of passive mode-locking (PML) [29].…”

Section: Introductionmentioning

confidence: 99%

Temporal Localized Turing Patterns in Vertical External-Cavity Surface-Emitting Laser

Bartolo

Vigne

Marconi

et al. 2022

Preprint

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Localized structures (LS) in lasers have been actively sought for all-optical information processing. So far, two distinct approaches have been developed for achieving LS: one leading to addressable stationary peaks of light in the transverse section of the resonator, the other leading to addressable mode-locked pulses having a fundamental mode spatial profile. Here we show that temporal localized patterns appear in nearly self-imaging Vertical External-Cavity Surface-Emitting Lasers (VECSELs) with an intracavity saturable absorber. The observed patterns consist of a combination of an axial plane-wave with a set of tilted waves having a hexagonal arrangement in the Fourier space. In the time domain these patterns are individually addressable mode-locked pulses having a duration of about ten picoseconds. The theoretical analysis shows that the emergence of these pulsating patterns is a signature of a Turing instability whose critical wave vector depends on spherical aberrations of the optical elements. Our result shows that large aspect-ratio VECSELs offer unique opportunities for studying spatio-temporal phenomena and it paves the way to the generation of spatio-temporal LS.

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Temporal solitons in a coherently driven active resonator

Cited by 50 publications

References 42 publications

Mode-locking induced by coherent driving in fiber lasers

Mode-locking induced by coherent driving in fiber lasers

A Theoretical Study of the Supercontinuum Generation for the Photonic Crystal Fibre

Temporal Localized Turing Patterns in Vertical External-Cavity Surface-Emitting Laser

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