We demonstrate high-speed LiFi data communication of over 20 Gbit/s using visible light from a laser-based white light emitting surface mount device (SMD) product platform that offers 10-100X the brightness of conventional LED sources. Equipped with high power blue laser diodes that offer over 3.5 GHz of 3 dB bandwidth, the laser-based white light SMD modules exhibited a signal-to-noise ratio (SNR) above 15 dB up to 1 GHz. The high SNR was combined with high order quadrature amplitude modulation (QAM) and orthogonal frequency division multiplexing (OFDM) to maximize the bandwidth efficiency. In this work, we present a laser based white light SMD module configured with a single 3W blue laser diode mounted on heat-sink, optically coupled to a collimating optic, achieving a LiFi data rate of up to 10 Gbit/s. Moreover, we demonstrate wavelength division multiplexing (WDM), from a white light SMD module configured with two blue laser diodes separated in peak wavelength to serve as separate communication channels. Using WDM, the dual laser SMD module enabled LiFi data rates of over 20 Gbit/s by simultaneously transmitting data over both channels.

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We demonstrate a high-speed LiFi (Light Fidelity) communication system deploying ultra-high brightness laser-based white light illumination sources in a surface mount device (SMD) package platform. The multi functionality sources provide 1000 lm of white light output with a brightness of 1000 cd/mm2 and data transmission rates beyond 20 Gbit/s from dual blue laser integrated SMD, and 500 lm of white light output with a brightness of 1000 cd/mm2 and data transmission rates beyond 25 Gbit/s from dual color of blue and infrared (IR) laser integrated SMD.

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