Broadband optical frequency comb generator based on driving N-cascaded modulators by Gaussian-shaped waveform

Hmood, Jassim K.; Harun, Sulaiman Wadi

doi:10.1016/j.yofte.2018.03.001

Cited by 8 publications

(2 citation statements)

References 29 publications

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“…The fixed parameters limit the solution domain and make it difficult to obtain a global optimal result with extreme inefficiency. Furthermore, in the OFC generation technology based on multiple radio frequency (RF) signals driving a single modulator [19] or cascaded modulators [20,21], it is more difficult for the control variate method to obtain an optimal solution with the increase of parameters number that can be designed. In addition, the existing OFC generation technologies still have the problem of lack of programmability, and the programmability of comb-line number is not flexible enough.…”

Section: Introductionmentioning

confidence: 99%

Inverse design of programmable optical frequency comb using deep learning

ma¹,

Li²,

shi³

2022

J. Opt.

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Optical frequency comb (OFC) has important applications in measurement, communication, military and other fields. Usually, OFC needs to be designed according to different applications. However, the existing methods to design the operating parameters of the OFC generators are time-consuming, inefficient, and difficult to achieve optimal results. In this paper, a novel method of inversely designing OFC using deep learning, which is real-time and can improve the performance of the generated OFC, is proposed and applied to an OFC generator based on a single dual-drive Mach-Zehnder modulator. In this method, according to the required target OFC, the trained neural network can be used to inversely design the corresponding parameters. Using this inverse design method, the generated OFC not only is highly consistent with the target OFC, but also has the programmability of comb-line number, comb-line power, side mode suppression ratio, and comb spacing. Moreover, the proposed method can be utilized for more complicated OFC generator, and is an inspiration for efficient design of OFC.

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Section: Introductionmentioning

confidence: 99%

Inverse design of programmable optical frequency comb using deep learning

ma¹,

Li²,

shi³

2022

J. Opt.

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“…In [11], the researchers controlled the DC bias voltage applied to the Mach-Zehnder modulator (MZM) arms with constant radio frequency (RF) signal amplitude to generate 17 comb lines with a spacing of 12.5 GHz from a single MZM. Similarly, nine comb lines were generated within a power fluctuation of 1.2 dB from a dual-drive MZM [12]. Meanwhile, 57 comb lines with a comb spacing of 1 GHz were generated using Gaussian pulse with a width of 0.2 T at full width at half maximum as an electrical driving signal for a single MZM with a chirp factor of 6.…”

Section: Introductionmentioning

confidence: 99%

Relationship between the voltage applied to MZM arms and the generation of optical frequency comb

Hammadi¹,

Mansour²

2018

IJET

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In this study, an optical frequency comb source (OFCS) based on a dual-drive Mach–Zehnder modulator (MZM) is constructed and theoretically demonstrated. A mathematical model of the constructed OFCS is then built to investigate the effect of the peak-to-peak radio frequency (RF) signals applied to the MZM arms on the generated optical frequency comb (OFC) lines at the MZM output. A dual-drive MZM, a continuous wave laser source, and an RF signal source are included in the OFCS. The chirp parameter can be controlled and 64 comb lines generated at a comb spacing of 25 GHz by regulating voltages applied to the MZM arms. The developed OFCS is relatively simple but valuable. The generated OFC lines can be used for high data-rate transmission.

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Ultra-flat optical frequency comb generation based on amplitude modulator and Gaussian band-stop filter

Jing

2019

Opt Quant Electron

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Broadband optical frequency comb generator based on driving N-cascaded modulators by Gaussian-shaped waveform

Cited by 8 publications

References 29 publications

Inverse design of programmable optical frequency comb using deep learning

Inverse design of programmable optical frequency comb using deep learning

Relationship between the voltage applied to MZM arms and the generation of optical frequency comb

Ultra-flat optical frequency comb generation based on amplitude modulator and Gaussian band-stop filter

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