Demo Abstract: WLAN Standard-based Non-Coherent FSO Transmission over 100m Indoor and Outdoor Environments

Abstract

We demonstrate a wireless local area network (WLAN) standard-based free space optical (FSO) transmission in indoor and outdoor environments at a 100meter distance. In our demonstration, we employ USRP for baseband signal processing, and the signal is modulated by a laser diode operating at the wavelength of 1550nm. We measure the error vector magnitude (EVM) of the received signals and compare it to the WLAN standard requirements. In both indoor and outdoor cases, it is shown that the bit error rate (BER) below 10e-5 can be achieved. From our demonstration, we confirm that the FSO communications can be applied to the feasible wireless backhaul link.