Dual Electro-Optic Comb Generator by Heterodyning Two Combs for Extending the Optical Bandwidth

Ullah, Rahat; Ullah, Ubaid; Ullah, Sibghat; Al‐Atawi, Abdullah A.; Alwageed, Hathal Salamah; Almadhor, Ahmad; Chen, Shuaidong; Ren, Jiadong

doi:10.1109/lpt.2023.3285155

Cited by 3 publications

(3 citation statements)

References 21 publications

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“…It is possible to generate a wide range of frequencies from a single laser source using an optical multicarrier (OMC) generator [ 17 , 18 , 19 ]. The cascaded arrangement of a different or a single modulator is one of several recent ways of generating OMCs [ 20 , 21 , 22 , 23 ]. The OMC is used in the optical access network [ 22 , 24 , 25 ], free space optics [ 26 ], in the OMAN [ 17 , 27 ], and for other applications [ 28 ].…”

Section: Introductionmentioning

confidence: 99%

A High-Capacity Optical Metro Access Network: Efficiently Recovering Fiber Failures with Robust Switching and Centralized Optical Line Terminal

Ullah,

Almadhor

et al. 2024

Sensors

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This study proposes and presents a new central office (CO) for the optical metro access network (OMAN) with an affordable and distinctive switching system. The CO’s foundation is built upon a novel optical multicarrier (OMC) generation technique. This technique provides numerous frequency carriers that are characterized by a high tone-to-noise ratio (TNR) of 40 dB and minimal amplitude excursions. The purpose is to accommodate multiple users at the optical network unit side in the optical metropolitan area network (OMAN). The OMC generation is achieved through a cascaded configuration involving a single phase and two Mach Zehnder modulators without incorporating optical or electrical amplifiers or filters. The proposed OMC is installed in the CO of the OMAN to support the 1.2 Tbps downlink and 600 Gbps uplink transmission, with practical bit error rate (BER) ranges from 10−3 to 10−13 for the downlink and 10−6 to 10−14 for the uplink transmission. Furthermore, in the OMAN’s context, optical fiber failure is a main issue. Therefore, we have proposed a possible solution for ensuring uninterrupted communication without any disturbance in various scenarios of main optical fiber failures. This demonstrates how this novel CO can rapidly recover transmission failures through robust switching a and centralized OLT. The proposed system is intended to provide users with a reliable and affordable service while maintaining high-quality transmission rates.

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Section: Introductionmentioning

confidence: 99%

A High-Capacity Optical Metro Access Network: Efficiently Recovering Fiber Failures with Robust Switching and Centralized Optical Line Terminal

Ullah,

Almadhor

et al. 2024

Sensors

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“…1,2 Recent advancements in the optical industry have helped to create novel strategies for increasing the bandwidth, including the optical frequency comb (OFC) generations. 3,4 OFC is a broadband spectrum composed of a series of discrete, equally spaced frequency components, 5 which is widely used in many fields such as optical communications and networks, 6 spectroscopy, 7 atomic clocks, 8 microwave photon signal processing, 9 optical arbitrary wave synthesis, 10 and so on. In these applications, producing a suitable OFC is a very important step.…”

Section: Introductionmentioning

confidence: 99%

“…Due to triple‐play services and other applications huge bandwidth is required by the end‐user deploying both the wired and wireless optical networks in different scenarios 1,2 . Recent advancements in the optical industry have helped to create novel strategies for increasing the bandwidth, including the optical frequency comb (OFC) generations 3,4 . OFC is a broadband spectrum composed of a series of discrete, equally spaced frequency components, 5 which is widely used in many fields such as optical communications and networks, 6 spectroscopy, 7 atomic clocks, 8 microwave photon signal processing, 9 optical arbitrary wave synthesis, 10 and so on.…”

Section: Introductionmentioning

confidence: 99%

Design of modulated signal waveform in fully digital programmable optical frequency comb

Ru,

Xue,

Zhang

et al. 2024

Micro & Optical Tech Letters

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This paper presents a new design method of digital baseband signal for generating fully digital programmable optical frequency comb (OFC), which solves the problem of how to optimally select the digital baseband signal when OFC is generated by binary digital signal modulation. The inverse Fourier transform is used to study the waveform of binary digital signal which is used to generate OFC. It is found that the number of “0” bits of digital signal determines the flatness of comb lines. Based on this, a tunable ultra‐fine and ultra‐flat OFC was obtained by using a digital signal containing a large number of “0” bits in the experiment. This saves substantial computing time and resources compared to the current method of the k‐means clustering algorithm.

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Frequency Diverse Array Signal Generation and Beamforming Based on Dual Optical Combs

Gao,

Tan,

Zhong

et al. 2024

J. Lightwave Technol.

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Dual Electro-Optic Comb Generator by Heterodyning Two Combs for Extending the Optical Bandwidth

Cited by 3 publications

References 21 publications

A High-Capacity Optical Metro Access Network: Efficiently Recovering Fiber Failures with Robust Switching and Centralized Optical Line Terminal

A High-Capacity Optical Metro Access Network: Efficiently Recovering Fiber Failures with Robust Switching and Centralized Optical Line Terminal

Design of modulated signal waveform in fully digital programmable optical frequency comb

Frequency Diverse Array Signal Generation and Beamforming Based on Dual Optical Combs

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