Nonlocal bonding of a soliton and a blue-detuned state in a microcomb laser

Laser cavity-solitons can appear in a microresonator-filtered laser when judiciously balancing the slow nonlinearities of the system. Under certain conditions, such optical states can be made to self-emerge and recover spontaneously, and the understanding of their robustness is critical for practica...

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Published inCommunications physics Vol. 6; no. 1; pp. 259 - 10
Main Authors Cutrona, Antonio, Cecconi, Vittorio, Hanzard, Pierre H., Rowley, Maxwell, Das, Debayan, Cooper, Andrew, Peters, Luke, Olivieri, Luana, Wetzel, Benjamin, Morandotti, Roberto, Chu, Sai T., Little, Brent E., Moss, David J., Totero Gongora, Juan S., Peccianti, Marco, Pasquazi, Alessia
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 20.09.2023
Nature Publishing Group
Nature Research
Nature Portfolio
Subjects
639/624/1111/1112
639/624/400/1118
Bonding
Continuous radiation
Fiber lasers
Fourier transforms
Lasers
Measurement techniques
Nonlinear Sciences
Nonlinearity
Optics
Photonics
Physics
Physics and Astronomy
Refractivity
Robustness
Solitary waves
Spectrum allocation
Spectrum analysis
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Summary:Laser cavity-solitons can appear in a microresonator-filtered laser when judiciously balancing the slow nonlinearities of the system. Under certain conditions, such optical states can be made to self-emerge and recover spontaneously, and the understanding of their robustness is critical for practical applications. Here, we study the formation of a bonded state comprising a soliton and a blue-detuned continuous wave, whose coexistence is mediated by dispersion in the nonlinear refractive index. Our real-time dispersive Fourier transform measurements, supported by comprehensive theoretical analysis, reveal the presence of an elastic bonding between the two states, resulting in an enhancement of the soliton’s robustness. Cavity-solitons in microresonator-filtered fibre lasers are robust states with self-recovery capabilities that emerge when a delicate balance of energy-dependent nonlinearities is achieved. In this work, the authors make use of the dispersive Fourier transform to understand the dynamics leading to a soliton bonded with a quasi-continuous wave.
ISSN:2399-3650
2399-3650
DOI:10.1038/s42005-023-01372-0