| DOI | Resolve DOI: https://doi.org/10.1109/JLT.2021.3104466 |
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| Author | Search for: Li, PengORCID identifier: https://orcid.org/0000-0002-8334-7661; Search for: Xu, Ruoshi; Search for: Dai, ZhengORCID identifier: https://orcid.org/0000-0002-9364-6104; Search for: Lu, Zhenguo1ORCID identifier: https://orcid.org/0000-0002-2162-7502; Search for: Yan, Lianshan; Search for: Yao, JianpingORCID identifier: https://orcid.org/0000-0002-6877-7057 |
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| Affiliation | - National Research Council of Canada. Advanced Electronics and Photonics
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| Funder | Search for: Natural Sciences and Engineering Research Council of Canada; Search for: National Research Council of Canada |
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| Format | Text, Article |
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| Subject | coherent detection; digital signal processing (DSP); laser frequency offset; laser phase noise; phase noise cancellation; radio over fiber (RoF); optical transmitters; optical receivers; masers; optical polarization; optical modulation; optical noise; receivers |
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| Abstract | An approach to transmitting two independent microwave vector signals on a single optical carrier with one polarization state based on coherent detection and digital phase noise cancellation is proposed and experimentally demonstrated. At the transmitter, two independent microwave vector signals are modulated on an optical carrier via a dual-drive Mach-Zehnder modulator (DD-MZM). The modulated optical signals are transmitted over a single-mode fiber (SMF) and sent to a coherent receiver. At the receiver, the optical signals are detected where a local oscillator (LO) optical wave generated by a second free-running laser source is also applied. To recover the two microwave vector signals, a novel digital signal processing (DSP) algorithm is developed and applied to eliminate the joint phase noise terms from the transmitter and the LO laser sources as well as the unstable offset frequency between the two laser sources. An experiment is performed. The transmission of two independent 16 quadrature amplitude modulation (16-QAM) microwave vector signals at 4 GHz with a symbol rate of 1 GSymb/s over a 9-km SMF is demonstrated. The transmission performance in terms of error vector magnitudes (EVMs) and bit error rates (BERs) is also evaluated. |
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| Publication date | 2021-08-12 |
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| Publisher | IEEE |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 9ce01293-e192-4009-9597-25daaad4353e |
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| Record created | 2022-08-25 |
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| Record modified | 2023-03-16 |
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