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Design of quad HG modal full-duplex MDM-RoF system employing integrated SMF-FSO link under severe weather conditions

MEET KUMARI1,*

Affiliation

  1. Department of ECE, UIE and UCRD, Chandigarh University, Mohali-140413, Punjab, India

Abstract

In today world, mode division multiplexing (MDM) technology is essential to expand the data capacity of traditional radio-over-fiber (RoF) systems to accommodate massive cloud computing, big data, Internet of Things (IoT) and other broadband applications. In this work, a symmetric 1Gbps MDM based full-duplex RoF system using integrated single mode fiber and free space optics (SMF-FSO) channel is designed. Four Hermite Gaussian (HG) modes are transmitted over fixed 10km SMF with FSO range of 30-100m in downlink and 10-17m in uplink under air, haze, fog and rain scenarios. At 10m FSO range under same conditions, maximum beam divergence of 3.5-10mrad and additional loss of 0.3-5dB can be sustained, at error rate of 10-9. Moreover, compared to prior works, this work provides optimum performance and can be used for high-capacity long-reach wired-wireless based systems..

Keywords

FSO, HG, MDM, RoF.

Submitted at: Dec. 25, 2024
Accepted at: Oct. 14, 2025

Citation

MEET KUMARI, Design of quad HG modal full-duplex MDM-RoF system employing integrated SMF-FSO link under severe weather conditions, Journal of Optoelectronics and Advanced Materials Vol. 27, Iss. 9-10, pp. 446-456 (2025)