Quantum dash multi-wavelength lasers for Tbit/s coherent communications and 5G wireless networks
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Published:2021-06-13
Issue:1
Volume:17
Page:
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ISSN:1990-2573
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Container-title:Journal of the European Optical Society-Rapid Publications
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language:en
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Short-container-title:J. Eur. Opt. Soc.-Rapid Publ.
Author:
Lu Zhenguo,Liu Jiaren,Mao Youxin,Zeb Khan,Liu Guocheng,Poole Philip J.,Weber John,Rahim Mohamed,Pakulski Grzegorz,Song Chunying,Vachon Martin,Barrios Pedro,Poitras Daniel,Wang Shurui,Jiang Weihong
Abstract
AbstractWe report on the design, growth, fabrication, and performance of InAs/InP quantum dash (QD) multi-wavelength lasers (MWLs) developed by the National Research Council (NRC) Canada. The key technical specifications investigated include optical and RF beating spectra, relative intensity noise (RIN), and optical phase noise of each individual wavelength channel. Data bandwidth transmission capacity of 5.376 Tbit/s and 10.8 Tbit/s respectively in the PAM-4 and 16-QAM modulation formats are demonstrated using only a single C-band QD 34.2-GHz MWL chip. We have also developed a monolithic InAs/InP QD dual-wavelength (DW) DFB laser as a compact optical beat source to generate millimeter-wave (MMW) signals. Due to the common cavity, highly coherent and correlated optical modes with optical linewidth as low as 15.83 kHz, spectrally pure MMW signals around 46.8 GHz with a linewidth down to 26.1 kHz were experimentally demonstrated. By using this QD DW-DFB laser, a one GBaud (2 Gbps) MMW over-fiber transmission link is demonstrated with PAM-4 signals. The results show that the demonstrated device is suitable for high speed high capacity MMW fiber-wireless integrated fronthaul of 5G networks.
Publisher
Springer Science and Business Media LLC
Subject
Atomic and Molecular Physics, and Optics
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