Directly modulated quantum-dash mode-locked lasers for millimeter-wave over fiber applications

Guocheng Liu; Zhenguo Lu; Jiaren Liu; Philip J. Poole; Youxin Mao; Xiaoran Xie; Martin Vachon; Chun-Ying Song; Pedro Barrios

doi:10.1117/12.2687323

11 March 2024 Directly modulated quantum-dash mode-locked lasers for millimeter-wave over fiber applications

Guocheng Liu, Zhenguo Lu, Jiaren Liu, Philip J. Poole, Youxin Mao, Xiaoran Xie, Martin Vachon, Chun-Ying Song, Pedro Barrios

Author Affiliations +

Proceedings Volume 12885, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XVII; 128850O (2024) https://doi.org/10.1117/12.2687323
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

A directly modulated quantum dash mode-locked laser is proposed for a 50-GHz millimeter-wave over fiber architecture. This advancement offers enhanced fiber-wireless communication capabilities, facilitating coverage of 15-km SMF and 2-m wireless QPSK transmissions. By utilizing the directly modulated laser (DML), we have successfully achieved an optical heterodyne mmW frequency of 50 GHz with exceptional stability. Notably, the measured RF beat-note 3-dB linewidth of the QDash DML is significantly reduced to 2.4 kHz, without the need for any optical feedback scheme. This DML-based hybrid architecture demonstrates the potential to seamlessly integrate with existing optical and wireless networks for next-generation indoor and short-reach mobile communications.

Conference Presentation

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

Citation Download Citation

Guocheng Liu, Zhenguo Lu, Jiaren Liu, Philip J. Poole, Youxin Mao, Xiaoran Xie, Martin Vachon, Chun-Ying Song, and Pedro Barrios "Directly modulated quantum-dash mode-locked lasers for millimeter-wave over fiber applications", Proc. SPIE 12885, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XVII, 128850O (11 March 2024); https://doi.org/10.1117/12.2687323

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