White-Lighting Communication with a Lu3Al5O12:Ce3+/CaAlSiN 3:Eu2+ Glass Covered 450-nm InGaN Laser Diode

Tsai Chen Wu, Yu Chieh Chi, Huai Yung Wang, Cheng Ting Tsai, Chih Hsien Cheng, Jin Kai Chang, Li Yin Chen, Wood Hi Cheng, Gong Ru Lin*

*Corresponding author for this work

研究成果: Article同行評審

16 引文 斯高帕斯(Scopus)

摘要

By using the Lu3Al5O12:Ce3+/CaAlSiN3:Eu2+ phosphor codoped fluorescent glass as a phosphor in front of an InGaN laser diode (LD), a novel white-lighting and visible light communication (VLC) module is demonstrated. By enlarging the fluorescent glass thickness from 0.7 to 1 mm, the CCT of the generated white light is increased from 7373 to 25000 K, and the maximal illuminance is enlarged from 1306 to 1356 lux. The pure LD-beam-based VLC can lengthen its transmission distance from 0.5 to 16 m, associated with allowable data rate slightly decreased from 14.8 to 10.8 Gb/s. When using the divergent white light as a carrier for VLC transmission, the allowable data rate upgrades from 1.6 to 4.4 Gb/s within 0.5-m distance in free space by thinning the fluorescent glass from 1 to 0.7 mm. Lengthening the white-lighting distance to 1 m for the VLC system still permits 16-QAM OFDM data transmission as high as 2.8 Gb/s. Such a Lu3Al5O12:Ce3+/CaAlSiN3:Eu2+ phosphor codoped fluorescent glass not only converts the blue LD beam for white lighting efficiently, but also preserves sufficient data capacity with acceptable signal-to-noise ratio for indoor VLC application.

原文English
文章編號8226659
頁(從 - 到)1634-1643
頁數10
期刊Journal of Lightwave Technology
36
發行號9
DOIs
出版狀態Published - 1 五月 2018

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