Abstract

Wedemonstrate a high-speed light fidelity (LiFi) communication system deploying ultra-high brightness laser-based white light illumination sources in a surface mount device (SMD) packaging platform. The LiFi transmitter SMD source provides 450 lumens of white light output with a brightness of 1000 cd/mm² in a dual wavelength configuration comprising blue and infrared (IR) emitting laser diodes within the SMD. First, we present high-speed data transmission beyond 25 Gbit/s over a 3 meter channel distance with the combined data rates from the blue and IR lasers in the single SMD. Next, we present a 2.8 Gbit/s data rate with the dual wavelength laser SMD light source using a side-emissive fiber as the transmitter. This work proves the viability of LiFi systems deploying laser-based white light sources operating at very high data rates with the visible light and communication signal delivered in conventional free-space transmission architectures along with novel configurations using side-emitting fibers.

2 Gbit/s data transmission from an unfiltered laser-based phosphor-converted white lighting communication system

Changmin Lee, Chao Shen, Hassan M. Oubei, Michael Cantore, Bilal Janjua, Tien Khee Ng, Robert M. Farrell, Munir M. El-Desouki, James S. Speck, Shuji Nakamura, Boon S. Ooi, and Steven P. DenBaars
Opt. Express 23(23) 29779-29787 (2015)

4-Gbit/s visible light communication link based on 16-QAM OFDM transmission over remote phosphor-film converted white light by using blue laser diode

José Ramón Durán Retamal, Hassan Makine Oubei, Bilal Janjua, Yu-Chieh Chi, Huai-Yung Wang, Cheng-Ting Tsai, Tien Khee Ng, Dan-Hua Hsieh, Hao-Chung Kuo, Mohamed-Slim Alouini, Jr-Hau He, Gong-Ru Lin, and Boon S. Ooi
Opt. Express 23(26) 33656-33666 (2015)

Multi-Gbit/s phosphor-based white-light and blue-filter-free visible light communication and lighting system with practical transmission distance

Liang-Yu Wei, Chi-Wai Chow, Yang Liu, and Chien-Hung Yeh
Opt. Express 28(5) 7375-7381 (2020)

White-light color conversion with red/green/violet laser diodes and yellow light-emitting diode mixing for 34.8  Gbit/s visible lighting communication

Wei-Chun Wang, Chih-Hsien Cheng, Huai-Yung Wang, and Gong-Ru Lin
Photon. Res. 8(8) 1398-1408 (2020)

Gigabit-per-second white light-based visible light communication using near-ultraviolet laser diode and red-, green-, and blue-emitting phosphors

Changmin Lee, Chao Shen, Clayton Cozzan, Robert M. Farrell, James S. Speck, Shuji Nakamura, Boon S. Ooi, and Steven P. DenBaars
Opt. Express 25(15) 17480-17487 (2017)