Pulse Bunching in the Soliton Rain Regime of an Ultralong Fiber Laser Mediated by Forward Brillouin Scattering

Sugavanam, Srikanth; El-Taher, Atalla; Woodward, Robert I.; Kelleher, E. J. R.; Churkin, Dmitry V.

doi:10.1364/cleo_qels.2016.ftu4a.4

Cited by 2 publications

(4 citation statements)

References 7 publications

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“…Soliton rain was first found experimentally for a fiber laser, mode-locked using a nonlinear polarization rotation [10]. Then it was observed for the mode-locking techniques based on Brillouin scattering [11], a nonlinear amplified loop mirror or a figure of eight cavity [12,13]. It was also found that a high pump power of 430 mW is required for the observation of soliton rain in these lasers [9,13].…”

Section: Introductionmentioning

confidence: 98%

“…A mode-locked fiber laser, acting as a source of femtosecond pulses with a high repetition rate of tens of megahertz, has fundamental technological importance in revolutionizing a wide range of natural and applied research areas [1][2][3][4]. The complex interplay of linear and nonlinear effects results in the diversity of nonlinear dynamic patterns; including soliton rain, which was systematically explored by controlling individual laser parameters, such as pump power, state of polarization (SOP) and cavity dispersion [5][6][7][8][9][10][11][12][13][14][15]. Soliton rain is a bunch of tens of small soliton pulses accompanying the main pulse and coexisting with a continuous wave (cw) background [9].…”

Section: Introductionmentioning

confidence: 99%

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Vector soliton rain

et al. 2019

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Soliton rain is a bunch of small soliton pulses accompanying the main pulse with the period of a round trip. It was found previously that soliton-soliton interaction through the overlapping of their tails or soliton-dispersive wave interaction can result in spikes with an anomalous amplitude satisfying the rogue waves (RW) criteria. Here, we report for the first time on the experimental observation of the polarization dynamics of soliton rain in an erbium-doped fiber laser mode-locked by single wall carbon nanotubes. Unlike the previous study, we have found that the soliton rain dynamics can be driven by polarization hole burning in the orientation distribution of inversion. Completion between holes, filled by the pump wave and rotation of the state of polarization of lasing pulse, is controlled by the pump power and in the cavity polarization controller, which results in repulsion or attraction of the soliton rain pulses and the main pulse. As a result, the different soliton rain patterns including RW can be observed.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Vector soliton rain

et al. 2019

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“…Our observations suggest the existence of the internal motions of the SR that have not been discovered yet, probably mediated by the ARs, besides the internal pulse bunching in the SR regime [22].…”

Section: Tailoring Of Mpd Via Optoacoustically Manipulated Qcwbmentioning

confidence: 52%

“…It has been recently demonstrated that the use of gigahertz ARs tightly confined in the micron-sized core of photonic crystal fiber can solve this issue, stabilizing the harmonically mode-locked pulse train at the repetition rate beyond 1 GHz [16][17][18]. The formation of pulse bunches and bound pulse states via the optoacoustic inter-pulse coupling has also been investigated [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Tailoring of multi-pulse dynamics in mode-locked laser via optoacoustic manipulation of quasi-continuous-wave background

Lee

Moon

et al. 2019

Commun Phys

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A variety of nonequilibrium multi-pulse states can emerge in a mode-locked laser through the interactions between the quasi-continuous-wave background (qCWB) and optical pulses inside the laser cavity. However, they have been long regarded as unpredictable and hardly controllable due to the noise-like nature of the qCWB, and relevant previous studies thus lack a clear understanding of their underlying mechanisms. Here, we demonstrate that the qCWB landscape can be manipulated via optoacoustically mediated interactions between the qCWB and mode-locked pulses, which dramatically alters the behaviors of multi-pulse dynamics in unprecedented manners. In this process, impulsive qCWB modulations are created at well-defined temporal locations, which act as the point emitters and attractive potentials for drifting pulse bunches and soliton rains. Hence, we can transport a single pulse bunch from a certain temporal position to another on the qCWB, and also make the soliton rain created and collided exclusively at specific temporal locations, in sharp contrast to the conventional cases. Our study opens up new possibilities to control the nonequilibrium multi-pulse phenomena precisely in the time domain, which would not only help the observation and clear understanding of undiscovered features of multi-pulse dynamics but offer a practical means of advanced optical information processing.

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Pulse Bunching in the Soliton Rain Regime of an Ultralong Fiber Laser Mediated by Forward Brillouin Scattering

Abstract: We present experimental evidence for soliton bunching mediated by forward Brillouin scattering in the soliton rain regime of an ultralong fiber laser. Spatio-temporal dynamics show an initial acceleration followed by self-organization of the rain solitons.

Cited by 2 publications

References 7 publications

Vector soliton rain

Vector soliton rain

Tailoring of multi-pulse dynamics in mode-locked laser via optoacoustic manipulation of quasi-continuous-wave background

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