On Campus Low-cost FSO Communication Link Analysis for Backhaul Connectivity in B5G Communications

Saad Saeed; Abdullah Nafis Khan; Usman Younis

doi:10.1117/12.3040237

On Campus Low-cost FSO Communication Link Analysis for Backhaul Connectivity in B5G Communications

Saad Saeed^*
, Abdullah Nafis Khan
, Usman Younis

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Increasing demand of high-speed connectivity has challenged the future technologies (5G/B5G) in terms of large bandwidth, ultralow latency, massive coverage, reliable connectivity and rapid deployment. Free space optical (FSO) communication addresses these challenges in a cost effective way due to its unlicensed spectrum, high data-rate and long range. To develop a low-cost indoor FSO link, we present high-speed transceivers based on laser diode and photodiode. The transceiver link has achieved signal transmission up to 65 MHz providing minimum data rate of 130 Mbps using NRZ modulation. Link measurements are performed in an indoor campus environment by employing an optical assembly consisting plano-convex lenses, to achieve a range of 50 meters. An experimental demonstration of a square wave transmission up to 1 MHz is presented along with 53% improved quality of retrieved signal. Moreover, OSNR (13.6 dB) and BER (10⁻⁹) parameters are studied to enhance the performance of future FSO networks.

Original language	English
Title of host publication	Free-Space Laser Communications XXXVII
Editors	Hamid Hemmati, Bryan S. Robinson
Publisher	SPIE
ISBN (Electronic)	9781510684584
DOIs	https://doi.org/10.1117/12.3040237
State	Published - 2025
Externally published	Yes
Event	Free-Space Laser Communications XXXVII 2025 - San Francisco, United States Duration: 28 Jan 2025 → 31 Jan 2025

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	13355
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Free-Space Laser Communications XXXVII 2025
Country/Territory	United States
City	San Francisco
Period	28/01/25 → 31/01/25

Bibliographical note

Publisher Copyright:
© 2025 SPIE.

Keywords

BER
Free space optics
NRZ-OOK
OSNR
optical assembly
transceivers

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.3040237

Cite this

@inproceedings{cffa6d24f05143f08c811a15803a2f66,

title = "On Campus Low-cost FSO Communication Link Analysis for Backhaul Connectivity in B5G Communications",

abstract = "Increasing demand of high-speed connectivity has challenged the future technologies (5G/B5G) in terms of large bandwidth, ultralow latency, massive coverage, reliable connectivity and rapid deployment. Free space optical (FSO) communication addresses these challenges in a cost effective way due to its unlicensed spectrum, high data-rate and long range. To develop a low-cost indoor FSO link, we present high-speed transceivers based on laser diode and photodiode. The transceiver link has achieved signal transmission up to 65 MHz providing minimum data rate of 130 Mbps using NRZ modulation. Link measurements are performed in an indoor campus environment by employing an optical assembly consisting plano-convex lenses, to achieve a range of 50 meters. An experimental demonstration of a square wave transmission up to 1 MHz is presented along with 53\% improved quality of retrieved signal. Moreover, OSNR (13.6 dB) and BER (10−9) parameters are studied to enhance the performance of future FSO networks.",

keywords = "BER, Free space optics, NRZ-OOK, OSNR, optical assembly, transceivers",

author = "Saad Saeed and Khan, \{Abdullah Nafis\} and Usman Younis",

note = "Publisher Copyright: {\textcopyright} 2025 SPIE.; Free-Space Laser Communications XXXVII 2025 ; Conference date: 28-01-2025 Through 31-01-2025",

year = "2025",

doi = "10.1117/12.3040237",

language = "English",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE",

editor = "Hamid Hemmati and Robinson, \{Bryan S.\}",

booktitle = "Free-Space Laser Communications XXXVII",

address = "United States",

}

Saeed, S, Khan, AN & Younis, U 2025, On Campus Low-cost FSO Communication Link Analysis for Backhaul Connectivity in B5G Communications. in H Hemmati & BS Robinson (eds), Free-Space Laser Communications XXXVII., 133551F, Proceedings of SPIE - The International Society for Optical Engineering, vol. 13355, SPIE, Free-Space Laser Communications XXXVII 2025, San Francisco, United States, 28/01/25. https://doi.org/10.1117/12.3040237

On Campus Low-cost FSO Communication Link Analysis for Backhaul Connectivity in B5G Communications. / Saeed, Saad; Khan, Abdullah Nafis; Younis, Usman.
Free-Space Laser Communications XXXVII. ed. / Hamid Hemmati; Bryan S. Robinson. SPIE, 2025. 133551F (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 13355).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - On Campus Low-cost FSO Communication Link Analysis for Backhaul Connectivity in B5G Communications

AU - Saeed, Saad

AU - Khan, Abdullah Nafis

AU - Younis, Usman

PY - 2025

Y1 - 2025

N2 - Increasing demand of high-speed connectivity has challenged the future technologies (5G/B5G) in terms of large bandwidth, ultralow latency, massive coverage, reliable connectivity and rapid deployment. Free space optical (FSO) communication addresses these challenges in a cost effective way due to its unlicensed spectrum, high data-rate and long range. To develop a low-cost indoor FSO link, we present high-speed transceivers based on laser diode and photodiode. The transceiver link has achieved signal transmission up to 65 MHz providing minimum data rate of 130 Mbps using NRZ modulation. Link measurements are performed in an indoor campus environment by employing an optical assembly consisting plano-convex lenses, to achieve a range of 50 meters. An experimental demonstration of a square wave transmission up to 1 MHz is presented along with 53% improved quality of retrieved signal. Moreover, OSNR (13.6 dB) and BER (10−9) parameters are studied to enhance the performance of future FSO networks.

AB - Increasing demand of high-speed connectivity has challenged the future technologies (5G/B5G) in terms of large bandwidth, ultralow latency, massive coverage, reliable connectivity and rapid deployment. Free space optical (FSO) communication addresses these challenges in a cost effective way due to its unlicensed spectrum, high data-rate and long range. To develop a low-cost indoor FSO link, we present high-speed transceivers based on laser diode and photodiode. The transceiver link has achieved signal transmission up to 65 MHz providing minimum data rate of 130 Mbps using NRZ modulation. Link measurements are performed in an indoor campus environment by employing an optical assembly consisting plano-convex lenses, to achieve a range of 50 meters. An experimental demonstration of a square wave transmission up to 1 MHz is presented along with 53% improved quality of retrieved signal. Moreover, OSNR (13.6 dB) and BER (10−9) parameters are studied to enhance the performance of future FSO networks.

KW - BER

KW - Free space optics

KW - NRZ-OOK

KW - OSNR

KW - optical assembly

KW - transceivers

UR - https://www.scopus.com/pages/publications/105002386580

U2 - 10.1117/12.3040237

DO - 10.1117/12.3040237

M3 - Conference contribution

AN - SCOPUS:105002386580

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Free-Space Laser Communications XXXVII

A2 - Hemmati, Hamid

A2 - Robinson, Bryan S.

PB - SPIE

T2 - Free-Space Laser Communications XXXVII 2025

Y2 - 28 January 2025 through 31 January 2025

ER -

On Campus Low-cost FSO Communication Link Analysis for Backhaul Connectivity in B5G Communications

Abstract

Publication series

Conference

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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Cite this