Generation of Nyquist pulse sequences using dual parallel Mach-Zehnder modulator and phase modulator

Jiakang Li; Yusheng Yao; Dongfang Jia; Chunfeng Ge; Zhaoying Wang; Tianxin Yang

doi:10.1117/12.3002164

11 March 2024 Generation of Nyquist pulse sequences using dual parallel Mach-Zehnder modulator and phase modulator

Jiakang Li, Yusheng Yao, Dongfang Jia, Chunfeng Ge, Zhaoying Wang, Tianxin Yang

Proceedings Volume 12885, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XVII; 128850K (2024) https://doi.org/10.1117/12.3002164
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

We propose a novel approach to generate Nyquist pulse sequences utilizing a dual parallel Mach-Zehnder modulator (DPMZM) and a phase modulator (PM). The DPMZM, driven by a single RF signal of 10 GHz, produces flat-topped optical pulses. Leveraging the time-lensing effect, the PM is employed to map these optical pulses into the frequency domain, resulting in a flat optical frequency comb (OFC) with 21 comb teeth and a frequency interval of 10 GHz. After chirp compensation and spectral shaping, Nyquist pulse sequences are obtained with a duty cycle of 0.0422.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Jiakang Li, Yusheng Yao, Dongfang Jia, Chunfeng Ge, Zhaoying Wang, and Tianxin Yang "Generation of Nyquist pulse sequences using dual parallel Mach-Zehnder modulator and phase modulator", Proc. SPIE 12885, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XVII, 128850K (11 March 2024); https://doi.org/10.1117/12.3002164

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