Matching group velocity of bright and/or dark solitons via double-dark resonances

Dong, Yaoyong; Deng-Long, Wang; Wang, Yin; Ding, Jianwen

doi:10.1016/j.physleta.2018.05.013

Cited by 13 publications

(3 citation statements)

References 52 publications

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“…Thus, matching the group-velocity of the pump and signal is not constrained to a highly specific waveguide geometry or material. The non-constrained nature of GV-matching is illustrated by the large amount of existent literature wherein nonlinear effects such as second harmonic generation and cross-phase modulation are observed [25][26][27][28][29]. In fact, for radially symmetric waveguides (such as fiber), a simple trick to ensure the same group-velocity is to set the pump and signal pulse to orthogonal polarizations, as done in Section 3.2.…”

Section: Methods and Theorymentioning

confidence: 99%

Maintaining Constant Pulse-Duration in Highly Dispersive Media Using Nonlinear Potentials

Zia

2021

Photonics

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A method is shown for preventing temporal broadening of ultrafast optical pulses in highly dispersive and fluctuating media for arbitrary signal-pulse profiles. Pulse pairs, consisting of a strong-field control-pulse and a weak-field signal-pulse, co-propagate, whereby the specific profile of the strong-field pulse precisely compensates for the dispersive phase in the weak pulse. A numerical example is presented in an optical system consisting of both resonant and gain dispersive effects. Here, we show signal-pulses that do not temporally broaden across a vast propagation distance, even in the presence of dispersion that fluctuates several orders of magnitude and in sign (for example, within a material resonance) across the pulse’s bandwidth. Another numerical example is presented in normal dispersion telecom fiber, where the length at which an ultrafast pulse does not have significant temporal broadening is extended by at least a factor of 10. Our approach can be used in the design of dispersion-less fiber links and navigating pulses in turbulent dispersive media. Furthermore, we illustrate the potential of using cross-phase modulation to compensate for dispersive effects on a signal-pulse and fill the gap in the current understanding of this nonlinear phenomenon.

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Section: Methods and Theorymentioning

confidence: 99%

Maintaining Constant Pulse-Duration in Highly Dispersive Media Using Nonlinear Potentials

Zia

2021

Photonics

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“…Comparing with light, the optical solitons, [11] which are from the nonlinear effect of the system being balanced with the diffraction (dispersion) effect, have higher stability and fidelity, and have gained considerable attention in ultra-cold atomic EIT media. [12][13][14][15][16][17][18] For the ultra-cold atomic EIT media, the storage and retrieval properties of the probe field in ladder-type threelevel atomic system was firstly investigated. [19] Due to the existence of the dark state, [3] the control field can control the probe field to realize storage and retrieval of the probe optical solitons.…”

Section: Introductionmentioning

confidence: 99%

Adjusting amplitude of the stored optical solitons by inter-dot tunneling coupling in triple quantum dot molecules

et al. 2023

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We study the propagation properties of a probe field in an aligned asymmetric triple quantum dot molecule with both sides inter-dot tunneling coupling effect. It is shown that the probe field can form optical soliton due to the destructive quantum interference induced by the quantum inter-dot tunneling coupling effect. Interestingly, these optical solitons can be stored and retrieved by adjusting single or double inter-dot tunneling coupling effect, different from that light memory in the ultra-cold atom system. Furthermore, we also find that the amplitude of the stored optical soliton can be adjusted by the strength of single or double inter-dot tunneling coupling. It is possibility to improve the stability and the fidelity of the optical information in the process of the storage and retrieval in semiconductor quantum dots devices.

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“…Up to date, most of works of slow light propagation and optical soliton formation in the EIT atomic medium focused on the three-level [14][15][16][17][18][19][20][21][22][23][24][25][26] , four-level [27][28][29][30][31][32][33] , and five-level 34,35 systems in which experimental observations of several soliton types were demonstrated [24][25][26] . Despite of extensive proposals in this topic for multi-level atoms in which all interacting fields must be controlled synchronously, the two-level system is particularly interesting because of its simple realization.…”

mentioning

confidence: 99%

Controllable ultraslow optical solitons in a degenerated two-level atomic medium under EIT assisted by a magnetic field

Dong

Yen

Xuan

et al. 2020

Sci Rep

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We proposed a simple model for generation of controllable ultraslow optical solitons of a weak probe laser light in a degenerated two-level atomic medium under electromagnetically induced transparency assisted by a magnetic field. It is shown that bright and dark optical solitons can be formed from a probe light with controllable ultraslow group velocities at a few m/s by tuning the strength of a coupling light and/or the magnetic field. In addition to the ultraslow velocity, the advantage of this model is to use a sole laser for delivering both pump and probe lights. Furthermore, one can switch between bright and dark solitons by reversing the direction of the magnetic field. Such controllable ultraslow solitons are interested in finding applications in optical communications and optical data processing.

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Matching group velocity of bright and/or dark solitons via double-dark resonances

Cited by 13 publications

References 52 publications

Maintaining Constant Pulse-Duration in Highly Dispersive Media Using Nonlinear Potentials

Maintaining Constant Pulse-Duration in Highly Dispersive Media Using Nonlinear Potentials

Adjusting amplitude of the stored optical solitons by inter-dot tunneling coupling in triple quantum dot molecules

Controllable ultraslow optical solitons in a degenerated two-level atomic medium under EIT assisted by a magnetic field

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