In this work, we introduce a method for the stabilization of spatiotemporal (ST) solitons. These solitons correspond to light bullets in multimode optical fiber lasers, energy-scalable waveguide oscillators and amplifiers, localized coherent patterns in Bose–Einstein condensates, etc. We show that a three-dimensional confinement potential, formed by a spatial transverse (radial) parabolic graded refractive index and dissipation profile, in combination with quadratic temporal phase modulation, may permit the generation of stable ST dissipative solitons. This corresponds to combining phase mode-locking with the distributed Kerr-lens mode-locking. Our study of the soliton characteristics and stability is based on analytical and numerical solutions of the generalized dissipative Gross–Pitaevskii equation. This approach could lead to higher energy (or condensate mass) harvesting in coherent spatio-temporal beam structures formed in multimode fiber lasers, waveguide oscillators, and weakly-dissipative Bose–Einstein condensates.

Stabilization of spatiotemporal dissipative solitons in multimode fiber lasers by external phase modulation / Kalashnikov, V L; Wabnitz, S. - In: LASER PHYSICS LETTERS. - ISSN 1612-2011. - 19:10(2022), pp. 1-13. [10.1088/1612-202X/ac8678]

Stabilization of spatiotemporal dissipative solitons in multimode fiber lasers by external phase modulation

Wabnitz, S
2022

Abstract

In this work, we introduce a method for the stabilization of spatiotemporal (ST) solitons. These solitons correspond to light bullets in multimode optical fiber lasers, energy-scalable waveguide oscillators and amplifiers, localized coherent patterns in Bose–Einstein condensates, etc. We show that a three-dimensional confinement potential, formed by a spatial transverse (radial) parabolic graded refractive index and dissipation profile, in combination with quadratic temporal phase modulation, may permit the generation of stable ST dissipative solitons. This corresponds to combining phase mode-locking with the distributed Kerr-lens mode-locking. Our study of the soliton characteristics and stability is based on analytical and numerical solutions of the generalized dissipative Gross–Pitaevskii equation. This approach could lead to higher energy (or condensate mass) harvesting in coherent spatio-temporal beam structures formed in multimode fiber lasers, waveguide oscillators, and weakly-dissipative Bose–Einstein condensates.
2022
fiber lasers; nonlinear effects; optical fibers
01 Pubblicazione su rivista::01a Articolo in rivista
Stabilization of spatiotemporal dissipative solitons in multimode fiber lasers by external phase modulation / Kalashnikov, V L; Wabnitz, S. - In: LASER PHYSICS LETTERS. - ISSN 1612-2011. - 19:10(2022), pp. 1-13. [10.1088/1612-202X/ac8678]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1651937
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