Different modulation schemes for direct and external modulators based on various laser sources

HM El-Hageen, PG Kuppusamy, AM Alatwi… - Journal of Optical …, 2024 - degruyter.com
Different types of laser source modulation techniques have been used in various
applications depending on the objective. As optical systems extract the laws and the best …

Design of a high-speed OFDM-SAC-OCDMA-based FSO system using EDW codes for supporting 5G data services and smart city applications

M Singh, J Kříž, MM Kamruzzaman… - Frontiers in …, 2022 - frontiersin.org
A novel free space optics (FSO) system is introduced in this article by combining orthogonal
frequency division multiplexing (OFDM) with spectral amplitude coding optical code division …

Inter-satellite optical wireless communication (IsOWC) systems challenges and applications: A comprehensive review

A Choudhary, NK Agrawal - Journal of Optical Communications, 2024 - degruyter.com
Satellite communication, in over half a century have attained remarkable breakthrough in
high speed transmission. These innovations, on the other hand, have come in tandem with …

FSO systems for next generation networks: A review, techniques and challenges

D Sharma, A Tripathi, M Kumari - Journal of Optical Communications, 2025 - degruyter.com
Free space optics (FSO) is considered among the emerging technological innovations which
are currently being utilized to supersede radio frequency (RF) communication because of its …

Enhanced performance of the 4× 20 Gbit/s-40 GHz OFDM-based RoFSO transmission link incorporating WDM-MDM of Hermite Gaussian and Laguerre Gaussian …

K Singh, M Singh, A Grover, R Miglani, H Singh… - Frontiers in …, 2022 - frontiersin.org
A 4× 20 Gbit/s-40 GHz orthogonal frequency-division multiplexing-based radio-on-free-
space optics information link, integrating hybrid wavelength-and mode-division multiplexed …

Measurement of target range and Doppler shift by incorporating PDM-enabled FMCW-based photonic radar

A Sharma, S Chaudhary, J Malhotra, A Parnianifard… - Optik, 2022 - Elsevier
Measurement is an essential part of modern science as well as of engineering, commerce,
and daily life. As per recent reports of world health organization (WHO), most accidents …

Performance analysis of 160 Gbit/s single-channel PDM-QPSK based inter-satellite optical wireless communication (IsOWC) system

P Sivakumar, M Singh, J Malhotra, V Dhasarathan - Wireless Networks, 2020 - Springer
Inter-satellite optical wireless communication (IsOWC) links have been exploited by many
researchers as a viable technology to transmit information amongst two or more satellites …

Ultra-high capacity optical satellite communication system using PDM-256-QAM and optical angular momentum beams

S Sachdeva, S Kaur, R Arora, M Sindhwani, K Arora… - Sensors, 2023 - mdpi.com
Twisted light beams such as optical angular momentum (OAM) with numerous possible
orthogonal states have drawn the prodigious contemplation of researchers. OAM …

Investigations on mode-division multiplexed free-space optical transmission for inter-satellite communication link

K Singh, S Chebaane, S Ben Khalifa, F Benabdallah… - Wireless …, 2022 - Springer
Inter-satellite data transmission links are very crucial for providing global inter-connectivity.
We report designing and investigations on high date rate inter-satellite communication …

High speed RGB-based duobinary-encoded visible light communication system under the impact of turbulences

L Li, A Sharma - Frontiers in Physics, 2022 - frontiersin.org
Recent gains in the pervasiveness of Visible Light Communication due to its ability to
simultaneously provide lighting and communication solutions make it the best candidate for …