Synchrotron resonant radiation from nonlinear self-accelerating pulses

Abstract

Solitons and nonlinear waves emit resonant radiation in the presence of perturbations. This effect is relevant for nonlinear fiber optics, supercontinuum generation, rogue waves, and complex nonlinear dynamics. However, resonant radiation is narrowband, and the challenge is finding novel ways to generate and tailor broadband spectra. We theoretically predict that nonlinear self-accelerated pulses emit a novel form of synchrotron radiation that is extremely broadband and controllable. We develop an analytic theory and confirm the results by numerical analysis. This new form of supercontinuum generation can be highly engineered by shaping the trajectory of the nonlinear self-accelerated pulses. Our results may find applications in novel highly efficient classical and quantum sources for spectroscopy, biophysics, security, and metrology.

Enhanced Dispersive Waves Generation via Sinusoidally Spectral Phase‐Modulated Pulses

“…[9][10][11][12] In the latter case, several types of localized nonlinear structures including dark, selfaccelerating, Peregrine and high-order solitary wave packets have also been used to manipulate the dynamics of the DWs radiation. [13][14][15][16] Thanks to remarkable advances in optical pulse shaping technologies, shaped pulses with designed and complex waveforms have been available recently. [17] These temporally shaped pulses exhibit a variety of novel behaviors that are finding applications in diverse fields such as ultrafast optics, quantum coherent control, and nonlinear optical process.…”

“…[ 9–12 ] In the latter case, several types of localized nonlinear structures including dark, self‐accelerating, Peregrine and high‐order solitary wave packets have also been used to manipulate the dynamics of the DWs radiation. [ 13–16 ]…”

Anomalous Interactions of Airy Solitons Modulated by a Fundamental Gaussian Beam and Fourth-Order Diffraction

“…The effects of third-order [67,68] and fourth-order [69][70][71] diffraction/dispersion on the propagation of Airy pulses/beams have been investigated in detail. We have also studied the interactions of Airy beams in local Kerr, saturable, and nonlocal media with fourth-order diffraction [72].…”

Controllable Dispersive Wave Radiation from Pearcey Gaussian Pulses

“…[28][29][30] More recently, the temporal structure of pump pulse has also been extended from symmetric to asymmetric to control the resonant radiation, including dark and Peregrine soliton, [31,32] multimode and shock waves, [33,34] and self-accelerating pulse. [35,36] In our previous works, we have reported that the conversion efficiency and radiation frequency of DWs can be controlled by adjusting the spectral phase modulation, [37,38] which makes the shaped pulses with symmetrical spectral shapes, while their temporal profiles exhibit asymmetric structure. In particular, the asymmetric temporal structure of the shaped pulse can trigger temporal collisions that can significantly alter the intensity and shape of the resonance spectrum.…”