Bi-Directional Free-Space Visible Light Communication Supporting Multiple Moveable Clients Using Light Diffusing Optical Fiber

Yun Han Chang, Chi Wai Chow*, Yuan Zeng Lin, Yin He Jian, Chih Chun Wang, Yang Liu, Chien Hung Yeh

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

In this work, we put forward and demonstrate a bi-direction free-space visible light communication (VLC) system supporting multiple moveable receivers (Rxs) using a light-diffusing optical fiber (LDOF). The downlink (DL) signal is launched from a head-end or central office (CO) far away to the LDOF at the client side via a free-space transmission. When the DL signal is launched to the LDOF, which acts as an optical antenna to re-transmit the DL signal to different moveable Rxs. The uplink (UL) signal is sent via the LDOF towards the CO. In a proof-of-concept demonstration, the LDOF is 100 cm long, and the free space VLC transmission between the CO and the LDOF is 100 cm. 210 Mbit/s DL and 850 Mbit/s UL transmissions meet the pre-forward-error-correction bit error rate (pre-FEC BER = 3.8 × 10−3) threshold.

Original languageEnglish
Article number4725
JournalSensors
Volume23
Issue number10
DOIs
StatePublished - May 2023

Keywords

  • laser diode (LD)
  • light diffusing optical fiber (LDOF)
  • light-diffusing optical fiber (LDOF)
  • optical wireless communication (OWC)
  • visible light communication (VLC)

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