Microwave Photonic Mixer Using DP-DDMZM for Next Generation 5G Cellular Systems

Kumar, Amitesh; Gautam, Abhinav; Priye, Vishnu

doi:10.1080/01468030.2020.1826068

Cited by 6 publications

(6 citation statements)

References 28 publications

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“…Multiwavelength erbium-doped fiber lasers (EDFLs) are used for different applications like wavelength division multiplexing [1], [2], optical fiber sensing [3], [4], and microwave photonics [5], [6]. In this kind of lasers, unstable emissions is commonly appreciated [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Switchable emissions of an Erbium-doped fiber laser using cascaded MZIs based on CHCF

Herrera-Piad,

Velazquez-Gonzalez,

Duran-Perez

et al. 2024

EJT

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In this work, a single and dual-wavelength erbium-doped fiber laser (EDFL) based on two Mach-Zehnder interferometers (MZIs) in cascade structure was experimentally validated. MZIs were assembled by joining a capillary hollow-core fiber (CHCF) piece between two multimode fibers (MMFs) sections. The switchable operation is reached by moving the spectrum of one MZI when the temperature is increased. The maximum measured signal noise to ratio (SNR) was more than 50 dB for the single and dual-wavelength laser lines. Besides, stable output is shown since no power and wavelength variations were noticed. It is important to mention that emissions are obtained at precise wavelength positions and not arbitrarily as described by other investigations. This EDFL can be used in applications of optical fiber communications systems and fiber sensing.

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Section: Introductionmentioning

confidence: 99%

Switchable emissions of an Erbium-doped fiber laser using cascaded MZIs based on CHCF

Herrera-Piad,

Velazquez-Gonzalez,

Duran-Perez

et al. 2024

EJT

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“…Linear FMCW radars can measure velocity as well as range of the target. In radio technologies, microwave and photonic system is setting new paradigms with improved performance and new applications [4,5]. A new generation of multifunctional systems and advanced surveillance is being made possible by the use of photonics in radar systems [6].…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of the coherent FMCW photonic radar system under the influence of solar noise

2023

Self Cite

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The real-time high-resolution target detection in radar applications has increased the demand for photonic radar systems due to their higher bandwidth and faster processing capabilities over conventional microwave radar. Additionally, photonic-based radar technology can revolutionize the limited performance of conventional microwave radar caused by various atmospheric attenuations. This article presents a frequency-modulated continuous-wave photonic radar system using coherent detection. The performance of the proposed system is theoretically investigated under the effect of various real-time atmospheric weather attenuations and the influence of solar background noise, which is further verified on the simulation platform. This study is conducted under different atmospheric weather conditions, such as clear, haze, and fog, to highlight the practical limitation of free-space links in the presence of solar background noise. The detected signal at different target ranges with and without solar noise is measured and then compared in terms of signal-to-noise ratio. Furthermore, the impact of solar noise on the system performance when the Sun is under different sky conditions and zenithal angles is also analyzed. The results presented here provide insights into designing photonic radar systems for practical applications like autonomous vehicle radar systems, self-traffic control, and navigation.

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“…The impact of the ER of a single‐drive MZM in frequency doubling was investigated, presented as an infinite series, limiting the summing terms 19 . More complex configurations based on cascade or parallel modulators for achieving high multiplicative factors have been presented 20–25 …”

Section: Introductionmentioning

confidence: 99%

“…19 More complex configurations based on cascade or parallel modulators for achieving high multiplicative factors have been presented. [20][21][22][23][24][25] We recently demonstrated an exact closed-form frequency domain analytical solution for large-signal conditions in RoF dispersive links that employ IM-DD. We observe significant differences when high modulation index is used, which is not possible to evaluate in the approximated solutions or in the small-signal condition.…”

Section: Introductionmentioning

confidence: 99%

Large signal analysis on microwave photonic generation using an asymmetric dual‐drive Mach–Zehnder modulator and with different modulation indices

Ferreira

Ribeiro

Spadoti

2022

Micro & Optical Tech Letters

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This paper proposes an exact closed‐form frequency domain analytical solution for large‐signal conditions to analyze a microwave photonic signal generator that employs external electro‐optic intensity modulation and direct detection. The detected power of the generated microwave signal was used to evaluate the effect of an asymmetric dual‐drive Mach–Zehnder modulator with finite extinction ratio and using different modulation indices. Considering these effects simultaneously, a full analysis of different bias and phase shifts is also theoretically investigated. The optimum modulation index that maximizes a desired generated microwave frequency is shown here. For a given generated harmonic, the modulation index increases by around 40%. Comparing with the ideal situation, that is, symmetric modulator and using equal modulation indices, for the same harmonic, there is a reduction of around 0.2 dB in the power level and an increase of around 10% in the modulation index to achieve maximum power.

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Microwave Photonic Mixer Using DP-DDMZM for Next Generation 5G Cellular Systems

Cited by 6 publications

References 28 publications

Switchable emissions of an Erbium-doped fiber laser using cascaded MZIs based on CHCF

Switchable emissions of an Erbium-doped fiber laser using cascaded MZIs based on CHCF

Performance analysis of the coherent FMCW photonic radar system under the influence of solar noise

Large signal analysis on microwave photonic generation using an asymmetric dual‐drive Mach–Zehnder modulator and with different modulation indices

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