RF Photonic Signal Processing with Kerr Micro-Combs: Integration, Fractional Differentiation and Hilbert Transforms

Tan, Mengxi; Xu, Xingyuan; Wu, Jiayang; Moss, David J.

doi:10.20944/preprints202009.0597.v1

Cited by 4 publications

(1 citation statement)

References 61 publications

(75 reference statements)

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“…In this scenario a CW laser has been used in place of VCSEL. The CW laser is the most widely used optical source in almost all communication networks due to its high emitting bandwidth which offers transmitting high data rates [25][26][27] . The performance of the PON system, using VCSEL source and the same PON system based on using CW laser is calculated.…”

Section: Scenario Twomentioning

confidence: 99%

Improved passive optical network RoF system based vertical cavity-surface emitting laser (VCSEL) optical source external modulation

Jalal,

Al-Maqdici

2023

Eng. Res. Express

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Passive Optical Network (PON) is a promising 5G optical fiber network technology, that can enhance reliability data rate, and bandwidth saving. This simulation- based study investigates the feasibility of implementing a vertical cavity-surface emitting laser (VCSEL) optical source along with wavelength-division multiplexing (WDM) for designing a PON radio over fiber (RoF) system that can authorize multi-subscribers, users, to simultaneously use the same optical fiber for Front long-haul data transmission. Three scenarios are proposed: First, a VCSEL, and a Mach-Zehnder Modulator with a distinctive frequency are made accessible to every user in the PON system. Whereas, in the second scenario, a continuous wave (CW) laser is used to replace the VCSEL in the same PON. 16 users are multiplexed by a WDM and transmitted over a link length of 200 km. The system performance is, thus measured in terms of Q-factor, and it is revealed that the VCSEL-based system outperforms the system utilized CW laser to a distance of 150 km, with a maximum gain in the Q-factor of about 4.5. Both postulated systems are able to achieve a maximum transmission distance of 180 km with a minimum Q-factor of 6. Moreover, to minimize, the input current of around 1 mA and the system complexity, a third scenario is presented in which one VCSEL with 193.1 THz is shared among multiple users. The Q-factor performance is then simulated for up to 72 users, revealing that the minimum level of acceptable Q-factor has been maintained up to a link length of 180 km.

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Section: Scenario Twomentioning

confidence: 99%

Improved passive optical network RoF system based vertical cavity-surface emitting laser (VCSEL) optical source external modulation

Jalal,

Al-Maqdici

2023

Eng. Res. Express

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Hybrid Brain-Computer Interfacing Paradigm for Assistive Robotics

Ghosh,

Saha

2024

Robotics and Autonomous Systems

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High Optical Kerr Nonlinearity of PdSe2 Di-chalcogenide 2D Films for Nonlinear Photonic Chips

Moss¹,

Wu²,

Jia³

2021

Preprint

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As a novel layered noble metal dichalcogenide material, palladium diselenide (PdSe2) has attracted wide interest due to its excellent optical and electronic properties. In this work, a strong third-order nonlinear optical response of 2D PdSe2 films is reported. We conduct both open-aperture (OA) and closed-aperture (CA) Z-scan measurements with a femtosecond pulsed laser at 800 nm to investigate the nonlinear absorption and nonlinear refraction, respectively. In the OA experiment, we observe optical limiting behaviour originating from large two photo absorption (TPA) in the PdSe2 film of β = 3.26 ×10− 8 m/W. In the CA experiment, we measure a peak-valley response corresponding to a large and negative Kerr nonlinearity of n2 = -1.33×10− 15 m2/W – two orders of magnitude larger than bulk silicon. In addition, the variation of n2 as a function of laser intensity is also characterized, with n2 decreasing in magnitude when increasing incident laser intensity, becoming saturated at n2 = -9.96×10− 16 m2/W at high intensities. Our results show that the extraordinary third-order nonlinear optical properties of PdSe2 have strong potential for high-performance nonlinear photonic devices.

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RF Photonic Signal Processing with Kerr Micro-Combs: Integration, Fractional Differentiation and Hilbert Transforms

Cited by 4 publications

References 61 publications

Improved passive optical network RoF system based vertical cavity-surface emitting laser (VCSEL) optical source external modulation

Improved passive optical network RoF system based vertical cavity-surface emitting laser (VCSEL) optical source external modulation

Hybrid Brain-Computer Interfacing Paradigm for Assistive Robotics

High Optical Kerr Nonlinearity of PdSe2 Di-chalcogenide 2D Films for Nonlinear Photonic Chips

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