Self-pulsations and excitability in optically injected quantum-dot lasers: Impact of the excited states and spontaneous emission noise

Olejniczak, Lukasz; Panajotov, Krassimir; Thienpont, Hugo; Sciamanna, Marc

doi:10.1103/physreva.82.023807

Cited by 32 publications

(25 citation statements)

References 22 publications

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“…Time traces of the total power shown in Figs. 4(f) and 4(h) resemble the traces showing single-pulse excitability or self-pulsating behavior observed in [23,24]. …”

Section: Experimental Results: Small Bias Currentmentioning

confidence: 53%

“…Theoretical calculations in VCSELs subject to orthogonal optical injection predicted that the two linearly polarized modes are anticorrelated at the time scale of slow oscillations while they exhibit an in-phase dynamics at the fast time scale of the relaxation oscillations [22]. Very recently, excitability and self-pulsating dynamics has been analyzed in optically injected quantum-dot and quantum-well laser diodes [23,24]. Time traces of the total power shown in Figs.…”

Section: Experimental Results: Small Bias Currentmentioning

confidence: 99%

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Correlation properties and time-resolved dynamics of linear polarizations emitted by single-mode vertical-cavity surface-emitting lasers subject to orthogonal optical injection

et al. 2011

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We present an experimental and theoretical study of the polarization and time-resolved nonlinear dynamics of a long-wavelength single-mode linearly polarized vertical-cavity surface-emitting laser (VCSEL) subject to orthogonal optical injection. Special attention is paid to the correlation properties of both linear polarizations emitted by the VCSEL. We measure simultaneous time traces of both linearly polarized output signals for several values of the bias current, the strength of the optical injection, and the frequency detuning between master and the free-running VCSEL. Different dynamical regimes, including periodic, period doubling, and irregular dynamics, are observed for both polarizations. For positive frequency detuning we usually find that the orthogonal polarization is the only polarization that contributes to the dynamics of the total power. Only for large values of the bias current and for small values of the optical injection strength, near the border of the periodic region, have we found correlated periodic dynamics in both linear polarizations. For negative frequency detuning we find anticorrelated dynamics in both linear polarizations. The average and dispersion of the time between consecutive pulses that appear in the anticorrelated regime increase with the injected power. The irregular dynamics, characterized by broadened power spectra, is related to large values of the dispersion of the time between pulses. A good overall qualitative agreement is found between our theoretical and experimental results.

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“…Time traces of the total power shown in Figs. 4(f) and 4(h) resemble the traces showing single-pulse excitability or self-pulsating behavior observed in [23,24]. …”

Section: Experimental Results: Small Bias Currentmentioning

confidence: 53%

Section: Experimental Results: Small Bias Currentmentioning

confidence: 99%

Correlation properties and time-resolved dynamics of linear polarizations emitted by single-mode vertical-cavity surface-emitting lasers subject to orthogonal optical injection

et al. 2011

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“…Recently some of us demonstrated that the characteristics of the first excited state (lasing or not) can have a major impact on the dynamics of optically injected QD lasers [20], [21]. Indeed the intraband relaxation time from the ES to the GS can enlarge or reduce the locking region, modifying the excitability characteristics of the system [6].…”

Section: Introductionmentioning

confidence: 98%

Mode Competition Induced by Optical Feedback in Two-Color Quantum Dot Lasers

Virte

Panajotov

Sciamanna

2013

IEEE J. Quantum Electron.

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We investigate theoretically the impact of optical feedback on quantum dot two-color laser dynamics when emitting from both the excited and the ground states. Detailed analysis of the laser dynamics is provided by numerical integrations and continuation techniques, as well as by analytical methods. As the feedback strength is increased the quantum dot laser undergoes a sequence of bifurcations involving steady-states, external cavity modes, self-pulsations and chaos. Furthermore, we report on two interesting mode competition results. First, the optical feedback favors the ground state emission; hence an increase of the feedback strength will generally lead to an increase of the ground state emission output power. Second, the optical feedback can select one lasing state or induce bistable switchings between different steady-states depending on the feedback strength and the injection current.

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“…The fast non-Arrhenius character of the ISI originates in a noise-induced diffusion through both branches of the stable manifold, thus initiating another excursion in phase space before relaxing to the CW state. Such a noise clustering of pulses due to the proximity of the relaxation trajectory of the excited pulse and the excitability threshold has been observed in several other noise-driven excitable systems, such as lasers with optical feedback [24,25], quantum-dot lasers with optical injection [28,40], and neurons of the Hodgkin-Huxley type [41].…”

Section: B Interspike-interval Diagrammentioning

confidence: 69%

Excitability in semiconductor microring lasers: Experimental and theoretical pulse characterization

et al. 2010

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We characterize the operation of semiconductor microring lasers in an excitable regime. Our experiments reveal a statistical distribution of the characteristics of noise-triggered optical pulses that is not observed in other excitable systems. In particular, an inverse correlation exists between the pulse amplitude and duration. Numerical simulations and an interpretation in an asymptotic phase space confirm and explain these experimentally observed pulse characteristics.

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Self-pulsations and excitability in optically injected quantum-dot lasers: Impact of the excited states and spontaneous emission noise

Cited by 32 publications

References 22 publications

Correlation properties and time-resolved dynamics of linear polarizations emitted by single-mode vertical-cavity surface-emitting lasers subject to orthogonal optical injection

Correlation properties and time-resolved dynamics of linear polarizations emitted by single-mode vertical-cavity surface-emitting lasers subject to orthogonal optical injection

Mode Competition Induced by Optical Feedback in Two-Color Quantum Dot Lasers

Excitability in semiconductor microring lasers: Experimental and theoretical pulse characterization

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