Self-Induced Modulational-Instability-Assisted Frequency Comb Generation Using a Passive Fiber Ring Cavity Having Varying Normal Dispersion

Afzal, Muhammad Imran; Alameh, Kamal; Lee, Yong Tak

doi:10.1109/jstqe.2014.2298835

Cited by 4 publications

(9 citation statements)

References 30 publications

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“…3, which is identical to that reported in refs 39, 40, 41. The ring cavity consisted of four types of fibres having different normal dispersion values, zero dispersion wavelengths and core diameters.…”

supporting

confidence: 82%

“…In addition, changes in the comb structure were observed, presenting a different feature compared to previous studies in field of soliton combs. Therefore, in addition to the soliton combs of different spacing, we also observed soliton molecules of different structures and compound (multicomponent) rogue waves394041. The properties of the solitons are discussed in detail in ref.…”

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confidence: 78%

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Supersymmetrical bounding of asymmetric states and quantum phase transitions by anti-crossing of symmetric states

Afzal

Lee

2016

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Von Neumann and Wigner theorized the bounding and anti-crossing of eigenstates. Experiments have demonstrated that owing to anti-crossing and similar radiation rates, the graphene-like resonance of inhomogeneously strained photonic eigenstates can generate a pseudomagnetic field, bandgaps and Landau levels, whereas exponential or dissimilar rates induce non-Hermicity. Here, we experimentally demonstrate higher-order supersymmetry and quantum phase transitions by resonance between similar one-dimensional lattices. The lattices consisted of inhomogeneous strain-like phases of triangular solitons. The resonance created two-dimensional, inhomogeneously deformed photonic graphene. All parent eigenstates were annihilated. Eigenstates of mildly strained solitons were annihilated at similar rates through one tail and generated Hermitian bounded eigenstates. The strongly strained solitons with positive phase defects were annihilated at exponential rates through one tail, which bounded eigenstates through non-Hermitianally generated exceptional points. Supersymmetry was evident, with preservation of the shapes and relative phase differences of the parent solitons. Localizations of energies generated from annihilations of mildly and strongly strained soliton eigenstates were responsible for geometrical (Berry) and topological phase transitions, respectively. Both contributed to generating a quantum Zeno phase, whereas only strong twists generated topological (Anderson) localization. Anti-bunching-like condensation was also observed.

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confidence: 82%

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confidence: 78%

Supersymmetrical bounding of asymmetric states and quantum phase transitions by anti-crossing of symmetric states

Afzal

Lee

2016

Sci Rep

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“…Besides hydrodynamics, Faraday-like patterns are observed in a wide range of physical settings, from crystallization dynamics, chemical systems, and optics [21][22][23][24][25]. In the context of fiber lasers, it has been proposed that Faraday instability can lead to the generation of pulse trains when the cavity dispersion is periodically modulated [26][27][28][29][30]. In addition to parametrically forced systems, there are many physical systems which feature the presence of collective oscillations, and thus may spontaneously lead to parametric or Faraday instabilities.…”

Section: Introductionmentioning

confidence: 99%

“…Besides hydrodynamics, Faraday-like patterns are observed in a wide range of physical settings, from crystallization dynamics, chemical systems, and optics [25][26][27][28][29]. In the context of fiber lasers and externally driven passive fiber resonators, it has been proposed that Faraday instability can lead to the generation of pulse trains when the cavity dispersion is periodically modulated [30][31][32][33][34].…”

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confidence: 99%

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Self-Induced Faraday Instability Laser

et al. 2018

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We predict the onset of self-induced parametric or Faraday instabilities in a laser, spontaneously caused by the presence of pump depletion, which leads to a periodic gain landscape for light propagating in the cavity. As a result of the instability, continuous wave oscillation becomes unstable even in the normal dispersion regime of the cavity, and a periodic train of pulses with ultrahigh repetition rate is generated. Application to the case of Raman fiber lasers is described, in good quantitative agreement between our conceptual analysis and numerical modeling.

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XPM-induced modulation instability in silicon-on-insulator nano-waveguides and the impact of nonlinear losses

Chaturvedi

Kumar

Mishra

2018

J. Opt.

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We have carried out an extensive theoretical study of cross-phase modulation induced modulation instability (MI) in a silicon-on-insulator nano-waveguide for two co-propagating waves. The analysis has been performed for two sets (with zero and varying non-zero walk-off parameter) of three different cases: when the two waves are in (i) normal dispersion regime, (ii) anomalous dispersion regime, and (iii) different dispersion regimes. In particularly, we have discussed the nonlinear losses due to two-photon absorption and free-carrier absorption. Further, we have investigated the impact of the walk-off parameter on the MI gain spectrum in the above three cases.

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Self-Induced Modulational-Instability-Assisted Frequency Comb Generation Using a Passive Fiber Ring Cavity Having Varying Normal Dispersion

Cited by 4 publications

References 30 publications

Supersymmetrical bounding of asymmetric states and quantum phase transitions by anti-crossing of symmetric states

Supersymmetrical bounding of asymmetric states and quantum phase transitions by anti-crossing of symmetric states

Self-Induced Faraday Instability Laser

XPM-induced modulation instability in silicon-on-insulator nano-waveguides and the impact of nonlinear losses

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