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Erschienen in: Photonic Network Communications 3/2021

05.03.2021 | Original Paper

Filter-free photonic microwave waveforms generation based on polarization-sensitive Mach–Zehnder modulator

verfasst von: Hongshi Zhao, Jianxin Ma

Erschienen in: Photonic Network Communications | Ausgabe 3/2021

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Abstract

This paper has proposed a photonic microwave waveforms generation scheme based on a dual-polarization Mach–Zehnder modulator (DPol-MZM) at moderate modulation depth without optical filtering. In the scheme, two sub-MZMs are driven by a fundamental frequency and a frequency tripled signal, respectively, to perform the optical carrier suppression modulation along two orthogonal polarization directions. Due to the polarization orthogonality of the tones, there is no cross-beating term in the photocurrent after photodetection. The harmonics power ratio is adjusted by varying the modulation indices and DC biases to obtain the temporal triangular and square waveforms. Frequency-doubled triangular and square waveforms with full duty cycle at repetition rates of 5, 10 and 20 GHz are successfully generated with optimized modulation indices and demonstrated by the simulation.

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Metadaten
Titel
Filter-free photonic microwave waveforms generation based on polarization-sensitive Mach–Zehnder modulator
verfasst von
Hongshi Zhao
Jianxin Ma
Publikationsdatum
05.03.2021
Verlag
Springer US
Erschienen in
Photonic Network Communications / Ausgabe 3/2021
Print ISSN: 1387-974X
Elektronische ISSN: 1572-8188
DOI
https://doi.org/10.1007/s11107-021-00925-z

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