Numerical Investigation on Feedback Insensitivity in Semiconductor Nanolasers

Fan, Yuanlong; Hong, Yanhua; Li, Pu

doi:10.1109/jstqe.2019.2899765

Cited by 11 publications

(3 citation statements)

References 44 publications

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“…In 2019, Qu et al investigated the impact of system parameters on TDS when dual-channel chaotic light is injected into NLs [50]. In the same year, Fan et al conducted a numerical study on the stability of NLs with external optical feedback, exploring the influence of feedback phase on their stability [51]. In 2021, Li et al separately analyzed the unpredictability of chaotic light sources under optical feedback and optical injection conditions.…”

Section: Introductionmentioning

confidence: 99%

Random Numbers Generated Based on Dual-Channel Chaotic Light

Liu,

Mu,

Wang

et al. 2024

Electronics

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This paper presents a chaotic system based on novel semiconductor nanolasers (NLs), systematically analyzing its chaotic region and investigating the influence of key parameters on the unpredictability of chaotic output. This study found that under optical feedback conditions, NLs generate chaos across a wide range of feedback parameters, with the highly unpredictable region completely overlapping with the chaotic region. Further injection into the slave lasers enhances the chaotic output, expanding the range of unpredictability. Additionally, we analyzed the impact of internal parameter mismatch on the complexity of chaotic signals and found it to be similar to the scenario when parameters are matched. Using this chaotic system as an entropy source, we constructed a random number generator (RNG) and investigated the effects of internal parameters mismatch and differences in the injection parameters on the generator’s performance. The simulation results show that the RNG performs well under different parameter settings, and the generated random sequences pass all random number tests successfully. Therefore, this chaotic system can yield a high-complexity chaotic light source with appropriate parameter selection, and when combined with effective post-processing, it can generate high-quality random numbers. This is crucial for advancing the realization of small-sized, high-randomness RNGs.

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Section: Introductionmentioning

confidence: 99%

Random Numbers Generated Based on Dual-Channel Chaotic Light

Liu,

Mu,

Wang

et al. 2024

Electronics

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“…It is possible that advances in nano-laser fabrication may arise using relatively novel material platforms [15,16]. Significant theoretical work has been undertaken exploring the dynamical behaviour of electrically pumped nano-lasers [17][18][19]. Particular effort has been expended in assessing the impact on the dynamics of semiconductor nanolasers of external perturbations such as: their direct current modulation response [20]; their response to optical injection [21]; and when subject to both regular [22] and phase conjugate [23] optical feedback.…”

Section: Introductionmentioning

confidence: 99%

Dynamics of Electrically Pumped Semiconductor Nano-Laser Arrays

Fan,

Shore,

Shao

2023

Photonics

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Semiconductor nano-lasers have been actively investigated both theoretically and experimentally with to the aim of providing a highly compact laser amenable to photonic integration. Such devices are naturally suited for assembly in close-packed one- and two-dimensional arrays. In such arrangements, optical coupling between elements of the array opens opportunities to generate a range of dynamical behaviours. In this paper, we present the first theoretical treatment of the dynamics of electrically pumped nano-laser arrays. Two specific forms of such arrays are analysed in detail: a three-element linear array, and triangular arrays. The former is the basis for extensive one-dimensional arrays, whilst the latter is a building block of many possible geometric configurations of two-dimensional nanolaser arrays. Using these prototypical configurations enables the identification of novel dynamical behaviours, which may be accessed using nano-laser arrays. A distinguishing physical feature of nano-lasers is the enhancement of the spontaneous emission rate via the so-called Purcell effect. Allowing for a range of Purcell enhancement factors, the analysis focusses on the effects of experimentally controllable parameters such as the laser drive current. It is shown that the Purcell enhancement factor is critical to the availability of a range of dynamical behaviours which arise simply due to inter-element optical coupling. Two-dimensional portraits of the regimes of differing dynamics offer a convenient means for determining the dynamics which may be accessed by varying the laser drive current.

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“…Contrariwise, the demonstration of electrically pumped semiconductor nanolasers has been found to be technically challenging and, in consequence, the number of reports on their successful demonstration has been small [9][10][11][12][13][14]. Nevertheless, considerable efforts have been made to simulate the dynamic behaviour of electrically driven nanolasers [15][16][17]. Mention may be made of extensive works which have addressed the response of electrically pumped nano-lasers to external perturbations including their direct current modulation behaviour [18], when they are subject to an external optical injection [19], and when they are affected by both regular [20] and phase conjugate [21] optical feedback.…”

Section: Introductionmentioning

confidence: 99%

Tailoring the Direct Current Modulation Response of Electrically Pumped Semiconductor Nano-Laser Arrays

Fan,

An,

Shore

et al. 2023

Photonics

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Semiconductor nano-lasers have been a topic of interest from the perspective of advancing the capabilities of photonic integration. Nano-lasers are perceived as the means to achieve improved functionality in photonic integrated circuits. The properties and performance of nano-lasers have been examined by means of simulations and laboratory measurements. Nano-lasers lend themselves to integration to form dense arrays in both one and two dimensions. In a recent work, a theoretical treatment was presented for the dynamic behaviour of stand-alone electrically pumped nano-laser arrays. In this work, the response of nano-laser arrays to direct current modulation is examined. As in previous works, attention is given to two prototype array geometries: a linear three-element linear array and an equilateral triangular array. Large one-dimensional arrays can be built by repeating this elementary linear array. Two-dimensional photonic integrated circuits can incorporate the triangular arrays studied here. Such prototypical configurations offer opportunities to tailor the modulation response of the nano-laser arrays. The principal factors which provide that capability are the coupling strengths between lasers in the arrays and the direct modulation parameters. The former are fixed at the design and manufacture stage of the array whilst the latter can be chosen. In addition, the enhancement of the spontaneous emission rate via the so-called Purcell effect in nano-lasers offers a device-specific means for accessing a range of modulation responses. Two-dimensional portraits of the regimes of differing modulation responses offer a convenient means for determining the dynamics that may be accessed by varying the laser drive current. It is shown by these means that a rich variety of modulation responses can be accessed in both linear and triangular arrays.

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Numerical Investigation on Feedback Insensitivity in Semiconductor Nanolasers

Cited by 11 publications

References 44 publications

Random Numbers Generated Based on Dual-Channel Chaotic Light

Random Numbers Generated Based on Dual-Channel Chaotic Light

Dynamics of Electrically Pumped Semiconductor Nano-Laser Arrays

Tailoring the Direct Current Modulation Response of Electrically Pumped Semiconductor Nano-Laser Arrays

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