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    High-brightness semipolar (2021¯) blue InGaN/GaN superluminescent diodes for droop-free solid-state lighting and visible-light communications

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    Type
    Article
    Authors
    Shen, Chao cc
    Ng, Tien Khee cc
    Leonard, John T.
    Pourhashemi, Arash
    Nakamura, Shuji
    DenBaars, Steven P.
    Speck, James S.
    Alyamani, Ahmed Y.
    El-desouki, Munir M.
    Ooi, Boon S. cc
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Photonics Laboratory
    KAUST Grant Number
    BAS/1/1614-01-01
    Date
    2016-05-26
    Online Publication Date
    2016-05-26
    Print Publication Date
    2016-06-01
    Permanent link to this record
    http://hdl.handle.net/10754/621653
    
    Metadata
    Show full item record
    Abstract
    A high-brightness, droop-free, and speckle-free InGaN/GaN quantum well blue superluminescent diode (SLD) was demonstrated on a semipolar (2021) GaN substrate. The 447-nm emitting SLD has a broad spectral linewidth of 6.3 nm at an optical power of 123 mW. A peak optical power of 256 mW was achieved at 700 mA CW injection current. By combining YAG:Ce phosphor, SLD-generated white light shows a color-rendering index (CRI) of 68.9 and a correlated color temperature (CCT) of 4340 K. The measured frequency response of the SLD revealed a -3 dB bandwidth of 560 MHz, thus demonstrating the feasibility of the device for both solid-state lighting (SSL) and visible-light communication (VLC) applications. © 2016 Optical Society of America.
    Citation
    Shen C, Ng TK, Leonard JT, Pourhashemi A, Nakamura S, et al. (2016) High-brightness semipolar (2021¯) blue InGaN/GaN superluminescent diodes for droop-free solid-state lighting and visible-light communications. Optics Letters 41: 2608. Available: http://dx.doi.org/10.1364/OL.41.002608.
    Sponsors
    King Abdullah University of Science and Technology (KAUST) (KAUST BAS/1/1614-01-01); King Abdulaziz City for Science and Technology (KACST) (KACST TIC R2-FP-008).
    Publisher
    The Optical Society
    Journal
    Optics Letters
    DOI
    10.1364/OL.41.002608
    ae974a485f413a2113503eed53cd6c53
    10.1364/OL.41.002608
    Scopus Count
    Collections
    Articles; Electrical and Computer Engineering Program; Photonics Laboratory; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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