Abstract
The scarcity of RF spectrum at lower frequencies has recently been addressed by millimeter wave transmission in wireless and radio-over-free-space optics networks for more flexible frequency spectrum allocation. In this paper, we report successful transmission of 2×4×20Gbit/s-40GHz information over an orthogonal frequency division multiplexing (OFDM) based Radio-over-Free space optics (RoFSO) transmission link by incorporating hybrid spectrum-slicing based wavelength division multiplexing (SS-WDM) and mode division multiplexing (MDM) of Hermite Gaussian (HG) modes up to a link reach up to 30 km under clear weather conditions. The proposed link is also investigated under the effect of atmospheric turbulence..
Keywords
SS-WDM, MDM, OFDM, RoFSO, Atmospheric turbulence.
Citation
AMIT GROVER, ANU SHEETAL, A cost-effective high-capacity OFDM based RoFSO transmission link incorporating hybrid SS-WDM-MDM of Hermite Gaussian modes, Optoelectronics and Advanced Materials - Rapid Communications, 14, 3-4, March-April 2020, pp.136-145 (2020).
Submitted at: Oct. 7, 2019
Accepted at: April 9, 2020