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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
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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.
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(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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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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KEYWORDS
Mode locking
Optical transmission
Laser applications
Modulation frequency
Quantum signals
Relative intensity noise
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