Work

Short- to Long-Reach WDM Access Network With Free Space Optical Traffic Link

Year: 2025

Type: article

Abstract: In this paper, we demonstrate a free space optical (FSO) wavelength-division-multiplexing passive optical network (WDM-PON) architecture with short-reach to long-reach fiber transmission to overcome different environments and geographical restrictions. Based on the periodic nature of the 2×N arrayed waveguide grating (AWG), the downstream and upstream wavelengths in the proposed fiber access network are offset by one channel to enable symmetric FSO data transmission. Thus, the Rayleigh backscattering (RB) beat noise can be mitigated fully. Four WDM channels are selected to transmit wireless FSO signals over the proposed PON architecture, each utilizing different modulation rates and fiber transmission distances for demonstration. In addition, the corresponding bit error rate (BER), detected power sensitivity and power budget of each WDM FSO signal are also analyzed and discussed.

Source: IEEE photonics journal

DOI: 10.1109/jphot.2025.3608203

Authors: Chien-Yu Liao, Tsu-Hsin Wu, Chien-Hung Yeh, Wen-Paio Lin, Yu-Heng Lin, Shien-Kuei Liaw

Institutions: Feng Chia University, Chang Gung University, National Taiwan University of Science and Technology

Language: English

Topic: Advanced Photonic Communication Systems

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: gold

Estimated APC paid: $2,075