Optical Injection Effects in Nanolasers

Sattar, Zubaida Abdul; Kamel, Nada Ali; Shore, K.A.

doi:10.1109/jqe.2015.2512591

Cited by 11 publications

(17 citation statements)

References 49 publications

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“…In this paper, the feasibility of this scheme to generate highquality random bit is illustrated by extracting 3-LSBs in each sample point to obtain random numbers. According to the device shown in figure 1, the theoretical model of the whole system is mathematically given as follows [39,40],…”

Section: Theoretical Modelmentioning

confidence: 99%

“…In the last terms in equations ( 4) and ( 5), k ri and τ ri are the injection rate and injection delay for the injection path. R inj denotes the injection ratio and k ri can be written as [40],…”

Section: Theoretical Modelmentioning

confidence: 99%

“…Previous studies have indicated that NLs, under perturbations such as external optical feedback, optical injection, and direct current modulation, can generate dynamic characteristics similar to conventional SLs. Moreover, relevant research on chaotic signal TDS concealment and confidential communication based on NLs has also been reported [38][39][40]. Han and Shore analyzed the dynamics of mutually coupled NLs as well as the behavior of optical feedback and optical injection acting together on NLs [41][42][43].…”

Section: Introductionmentioning

confidence: 99%

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High-quality random bit generation based on a cascade-coupled nano-laser system

Liu,

Mu,

Guo

et al. 2024

Laser Phys. Lett.

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In this paper, a novel method is proposed to generate high-quality chaotic signals using three cascade-coupled nano-lasers (NLs), and generate high-speed, high-quality random number sequences. The master NL (MNL) is subjected to optical feedback, and its output is injected into the intermediate NL (INL), which is further injected into the slave NL (SNL). In the simulation, we first adjust proper parameters so that the SNL generates a chaotic signal with a large bandwidth and time-delay signature concealment. After performing self-delayed differential processing on the chaotic signal, and utilizing an 8-bit analog-to-digital converter for sampling and quantization, followed by extraction of the m-bits least significant bit, the final random bit sequence is obtained. Finally, we use NIST SP 800-22 to test the generated random numbers. The results demonstrate that the obtained random number sequence successfully passed all tests specified by NIST SP 800-22.

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Section: Theoretical Modelmentioning

confidence: 99%

Section: Theoretical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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High-quality random bit generation based on a cascade-coupled nano-laser system

Liu,

Mu,

Guo

et al. 2024

Laser Phys. Lett.

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“…As one of the most important dynamic states, OIL provides a method for controlling and stabilizing laser oscillations, such as improved side-mode suppression [85], enhanced relaxation oscillation frequency [5], reduced wavelength chirp [86] or reduced relative intensity noise [82]. Recently, nanolasers subject to optical injection were analyzed using rate equations accounting for the influence of the Purcell cavity-enhanced factor and the spontaneous emission factor [87]. In this section, by analytically solving the single-mode rate equations as in [57], we investigate the impact of OIL on the high-speed modulation performance of microdisk lasers.…”

Section: Modulation Improvement By Optical Injection Lockingmentioning

confidence: 99%

Review of the dynamic characteristics of AlGaInAs/InP microlasers subject to optical injection

Huang

Yang

et al. 2016

Semicond. Sci. Technol.

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Semiconductor lasers subject to optical injection exhibit many nonlinear dynamic behaviors that can be applied to enhance the modulation speed and generate a microwave signal. In this paper, the dynamic characteristics of AlGaInAs/InP microdisk lasers subject to optical injection are investigated numerically and experimentally. The different dynamic states and bifurcation and stability diagrams are simulated using rate equations, and a greatly enhanced modulation bandwidth is expected based on small-signal analysis of microlasers in the injection locking state. Four-wave mixing, period-one and period-two oscillations, and injection locking states are demonstrated experimentally from the lasing spectra and photonic generation microwaves for a microdisk laser subject to optical injection at different detuning frequencies, and enhancement of the modulation bandwidth is realized for the optical injection locking state. Furthermore, lownoise photonically generated microwaves are obtained for microdisk lasers subject to optical injection and optoelectronic feedback, with the beating signal obtained from a high-speed photodetector being applied to the microdisk laser as sideband injection locking is realized in the period-one state. In addition to external optical injection, dynamic optical injection behaviors are realized for integrated twin-microdisk lasers with mutually internal optical injection, similar to semiconductor microdisk lasers subject to external optical injection. As well as obtaining microwaves by light beating at a high-speed photodetector, microwave signals are obtained from the electrode of a square microlaser subject to optical injection related to carrier density oscillation, with the microwave power versus frequency being in good agreement with the smallsignal modulation response curve. It is expected that low-noise tunable microwave signals and enhanced modulation speed microlasers will be obtained from photonic integrated circuits, with the microdisk lasers subject to internal optical injection.

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“…In 2012, Ding and Ning explored the effects of F and β on the performance of electronically pumped NLs [40]. Sattar et al studied the nonlinear dynamical behavior of NLs under external optical feedback, phase-conjugate feedback, and optical injection [41][42][43][44]. In 2017, Han et al analyzed the dynamic characteristics of mutually coupled NLs and investigated the influence of F and β on them [45,46].…”

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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Optical Injection Effects in Nanolasers

Cited by 11 publications

References 49 publications

High-quality random bit generation based on a cascade-coupled nano-laser system

High-quality random bit generation based on a cascade-coupled nano-laser system

Review of the dynamic characteristics of AlGaInAs/InP microlasers subject to optical injection

Random Numbers Generated Based on Dual-Channel Chaotic Light

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