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    Phosphorous Diffuser Diverged Blue Laser Diode for Indoor Lighting and Communication

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    srep18690.pdf
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    1.678Mb
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    PDF
    Description:
    Main article
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    Type
    Article
    Authors
    Chi, Yu-Chieh
    Hsieh, Dan-Hua
    Lin, Chung-Yu
    Chen, Hsiang-Yu
    Huang, Chia-Yen
    He, Jr-Hau cc
    Ooi, Boon S. cc
    DenBaars, Steven P.
    Nakamura, Shuji
    Kuo, Hao-Chung
    Lin, Gong-Ru
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    KAUST Solar Center (KSC)
    Date
    2015-12-21
    Online Publication Date
    2015-12-21
    Print Publication Date
    2016-11
    Permanent link to this record
    http://hdl.handle.net/10754/592608
    
    Metadata
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    Abstract
    An advanced light-fidelity (Li-Fi) system based on the blue Gallium nitride (GaN) laser diode (LD) with a compact white-light phosphorous diffuser is demonstrated for fusing the indoor white-lighting and visible light communication (VLC). The phosphorous diffuser adhered blue GaN LD broadens luminescent spectrum and diverges beam spot to provide ample functionality including the completeness of Li-Fi feature and the quality of white-lighting. The phosphorous diffuser diverged white-light spot covers a radiant angle up to 120o with CIE coordinates of (0.34, 0.37). On the other hand, the degradation on throughput frequency response of the blue LD is mainly attributed to the self-feedback caused by the reflection from the phosphor-air interface. It represents the current state-of-the-art performance on carrying 5.2-Gbit/s orthogonal frequency-division multiplexed 16-quadrature-amplitude modulation (16-QAM OFDM) data with a bit error rate (BER) of 3.1 × 10−3 over a 60-cm free-space link. This work aims to explore the plausibility of the phosphorous diffuser diverged blue GaN LD for future hybrid white-lighting and VLC systems.
    Citation
    Phosphorous Diffuser Diverged Blue Laser Diode for Indoor Lighting and Communication 2015, 5:18690 Scientific Reports
    Publisher
    Springer Nature
    Journal
    Scientific Reports
    DOI
    10.1038/srep18690
    PubMed ID
    26687289
    Additional Links
    http://www.nature.com/articles/srep18690
    ae974a485f413a2113503eed53cd6c53
    10.1038/srep18690
    Scopus Count
    Collections
    Articles; Electrical and Computer Engineering Program; KAUST Solar Center (KSC); Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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