標題: Phosphorous Diffuser Diverged Blue Laser Diode for Indoor Lighting and Communication
作者: Chi, Yu-Chieh
Hsieh, Dan-Hua
Lin, Chung-Yu
Chen, Hsiang-Yu
Huang, Chia-Yen
He, Jr-Hau
Ooi, Boon
DenBaars, Steven P.
Nakamura, Shuji
Kuo, Hao-Chung
Lin, Gong-Ru
光電工程學系
Department of Photonics
公開日期: 21-Dec-2015
摘要: 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 whitelighting 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 120 degrees 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 selffeedback caused by the reflection from the phosphor-air interface. It represents the current state-ofthe- art performance on carrying 5.2-Gbit/s orthogonal frequency-division multiplexed 16-quadratureamplitude modulation (16-QAM OFDM) data with a bit error rate (BER) of 3.1 x 10(-3) over a 60-cm freespace link. This work aims to explore the plausibility of the phosphorous diffuser diverged blue GaN LD for future hybrid white-lighting and VLC systems.
URI: http://dx.doi.org/10.1038/srep18690
http://hdl.handle.net/11536/129527
ISSN: 2045-2322
DOI: 10.1038/srep18690
期刊: SCIENTIFIC REPORTS
Volume: 5
起始頁: 0
結束頁: 0
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