| Download | - View final version: InAs/InP quantum dash buried heterostructure mode-locked laser for high capacity fiber-wireless integrated 5G new radio fronthaul systems (PDF, 5.1 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1364/OE.424504 |
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| Author | Search for: Zeb, Khan1; Search for: Lu, Zhenguo1; Search for: Liu, Jiaren1; Search for: Mao, Youxin1; Search for: Liu, Guocheng1; Search for: Poole, Philip J.1; Search for: Rahim, Mohamed1; Search for: Pakulski, Grzegorz1; Search for: Barrios, Pedro1; Search for: Jiang, Weihong1; Search for: Zhang, XiupuORCID identifier: https://orcid.org/0000-0003-2764-5397 |
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| Affiliation | - National Research Council Canada. Advanced Electronics and Photonics
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| Funder | Search for: National Research Council Canada |
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| Format | Text, Article |
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| Physical description | 11 p. |
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| Abstract | We have developed and experimentally demonstrated a highly coherent and low noise InP-based InAs quantum dash (QDash) buried heterostructure (BH) C-band passively mode-locked laser (MLL) with a pulse repetition rate of 25 GHz for fiber-wireless integrated fronthaul 5G new radio (NR) systems. The device features a broadband spectrum providing over 46 equally spaced highly coherent and low noise optical channels with an optical phase noise and integrated relative intensity noise (RIN) over a frequency range of 10 MHz to 20 GHz for each individual channel typically less than 466.5 kHz and -130 dB/Hz, respectively, and an average total output power of ∼50 mW per facet. Moreover, the device exhibits low RF phase noise with measured RF beat-note linewidth down to 3 kHz and estimated timing jitter between any two adjacent channels of 5.5 fs. By using this QDash BH MLL device, we have successfully demonstrated broadband optical heterodyne based radio-over-fiber (RoF) fronthaul wireless links at 5G NR in the underutilized spectrum of around 25 GHz with a total bit rate of 16-Gb/s. The device performance is experimentally evaluated in an end-to-end fiber-wireless system in real-time in terms of error vector magnitude (EVM) and bit error rate (BER) by generating, transmitting and detecting 4-Gbaud 16-QAM RF signals over 0.5-m to 2-m free-space indoor wireless channel through a total length of 25.22 km standard single mode fiber (SSMF) with EVM and BER under 8.4% and 2.9 × 10⁻⁵, respectively. The intrinsic characteristics of the device in conjunction with its system transmission performance indicate that QDash BH MLLs can be readily used in fiber-wireless integrated systems of 5G and beyond wireless communication networks. |
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| Publication date | 2021-05-11 |
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| Publisher | Optica Publishing Group |
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| Licence | |
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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 | 60569a8c-2754-410f-9184-9e7813ea4b39 |
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| Record created | 2022-10-17 |
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| Record modified | 2025-11-03 |
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