Effects of Homogeneous and Inhomogeneous Broadening on the Dynamics of Tunneling Injection Quantum Dot Lasers

Gready, David; Eisenstein, G.

doi:10.1109/jqe.2011.2134835

Cited by 17 publications

(10 citation statements)

References 23 publications

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“…The inhomogeneous broadening linewidth typically ranges from 30-80 meV at room temperature [5], [17]. It is known that the inhomogeneous broadening effect has significant impacts on the AM response as well as the linewidth enhancement factor (α-factor), which is strongly dependent on the shape of the gain spectrum [18]- [20].…”

Section: Introductionmentioning

confidence: 99%

Influence of inhomogeneous broadening on the dynamics of quantum dot lasers

et al. 2015

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International audienceThis work theoretically studies the impacts of the inhomogeneous broadening on the modulation dynamics of quantum dot lasers using a multi-population rate equation model. The modulation dynamics shows two distinct regimes depending on the energy separation between the GS and the ES. For broadenings smaller than the GS-ES separation, the K-factor increases while the damping factor offset, the differential gain and the gain compression factor decrease with the inhomogeneous broadening. For broadenings larger than the GS-ES separation, the damping factor offset keeps almost constant while the K-factor, the differential gain and the gain compression factor increases with the inhomogeneous broadening

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Section: Introductionmentioning

confidence: 99%

Influence of inhomogeneous broadening on the dynamics of quantum dot lasers

et al. 2015

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“…The homogeneous and inhomogeneous broadening effects on quantum dots have been considered by many authors [30][31][32][33][34]. When the self-assembled quantum dots are formed, it will exhibit inhomogeneous broadening because of nonuniformity of size (size fluctuations) [32], strain distribution, and material composition of quantum dots [30], and hence the signal and pump beams experience different detunings at different quantum dots (i.e., each frequency detuning depends on the individual quantum dot size) [25,32].…”

Section: Discussionmentioning

confidence: 99%

“…If we do not adopt these routes for reducing the quantum dot size effects, the influence can also be analyzed by using some methods, e.g., spatially resolved model that can incorporate homogeneous and inhomogeneous broadenings for quantum dots [33]. In this model, different quantum dot sizes yield their own confined energies that can be calculated by solving the Schrodinger equation.…”

Section: Discussionmentioning

confidence: 99%

“…In this model, different quantum dot sizes yield their own confined energies that can be calculated by solving the Schrodinger equation. A separate rate equation is assigned to each energy level as well as to each carrier type [33]. Here, the size distribution must be quantized into subgroups.…”

Section: Discussionmentioning

confidence: 99%

“…Here, the size distribution must be quantized into subgroups. Such size distribution subgroups can be determined in accordance with the energetic spacing between each group and its neighboring groups, where the homogeneously broadened line is also taken into account [33].…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Surface Plasmon Wave Manipulated by Quantum Coherence of Multilevel Quantum Dots

Shen¹

2014

PIER Letters

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Abstract-An EIT (electromagnetically induced transparency)-based prism coupler is suggested for realizing tunable reflection spectrum via quantum coherence of phases in a multilevel system, where destructive and constructive quantum interference will occur among multilevel transition pathways that are driven by two external control fields. In this prism coupler, a semiconductor-quantum-dot (SQD) medium layer, which can exhibit EIT and relevant quantum coherent effects, bounds the prism base, and the two external control fields are used to manipulate the probe field and the excited surface plasmon wave (on the SQD layer surface). Then the surface plasmon wave modes, which are generated by the probe field incident into this multilevel SQD medium layer, can be coherently tunable through the switchable quantum interference (destructive and constructive quantum interference) among the energy levels in the SQD systems. Such switchable quantum interference can be realized if we tune the intensities (i.e., adjust a proper intensity ratio) of the two control fields that drive the SQD multilevel EIT system. New switchable photonic devices, which could find applications in photonic microcircuits as well as some areas in integrated optical circuits, could be designed based on this quantum-interference switchable surface plasmon resonance.

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Impact of optical gain broadening on characteristics of response function in the presence and absence of tunnelling injection for quantum dot semiconductor lasers

Kia

Rajaei

2017

Pramana - J Phys

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Effects of Homogeneous and Inhomogeneous Broadening on the Dynamics of Tunneling Injection Quantum Dot Lasers

Cited by 17 publications

References 23 publications

Influence of inhomogeneous broadening on the dynamics of quantum dot lasers

Influence of inhomogeneous broadening on the dynamics of quantum dot lasers

Surface Plasmon Wave Manipulated by Quantum Coherence of Multilevel Quantum Dots

Impact of optical gain broadening on characteristics of response function in the presence and absence of tunnelling injection for quantum dot semiconductor lasers

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