Abhishek Sharma

Dr. Abhishek Sharma

Electronics and Communication, National Institute of Technology Hamirpur, Mandi, India
orcid
Photonics Researcher | 10+ Years of Teaching Experience | Wo...

Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2016 in Journal of Optical Communications
Verified
Journal Article
Closed access
Sushank ChaudharySushank Chaudhary
Sushank Chaudhary
Abhishek SharmaAbhishek Sharma
Abhishek Sharma
Neha ChaudharyNeha Chaudhary
Neha Chaudhary
Inter-satellite communication is a revolutionary technique used to establish communication between satellites in space. One of the major challenges in inter-satellite link is transmitting pointing errors, which causes turbulences in the link. This work is focussed on successful transmission of 120 Gbps high-speed data over 1,000 km by adopting hybrid wavelength division multiplexing scheme and polarization interleaving scheme under the influence of transmitting pointing error.

30 April 2019 in Optical and Quantum Electronics
Verified
Journal Article
Closed access
PDF file
Sushank ChaudharySushank Chaudhary
Sushank Chaudhary
HLHabte Tadesse Likassa
Habte Tadesse Likassa
Abhishek SharmaAbhishek Sharma
Abhishek Sharma
BLBangjiang Lin
Bangjiang Lin
XWXian Wei
Xian Wei
APAkshita Parmar
Akshita Parmar

1 February 2021 in Optik
Verified
Journal Article
Closed access
Abhishek SharmaAbhishek Sharma
Abhishek Sharma
JMJyoteesh Malhotra
Jyoteesh Malhotra
Sushank ChaudharySushank Chaudhary
Sushank Chaudhary
VTVeena Thappa
Veena Thappa

16 October 2020 in Wireless Personal Communications
Verified
Journal Article
Closed access
PDF file
Sushank ChaudharySushank Chaudhary
Sushank Chaudhary
Abhishek SharmaAbhishek Sharma
Abhishek Sharma
HLHabte Tadesse Likassa
Habte Tadesse Likassa
XWXian Wei
Xian Wei
PSPriya Sood
Priya Sood


15 January 2023 in Photonics
Verified
Journal Article
Open access
PDF file
MKMeet Kumari
Meet Kumari
Abhishek SharmaAbhishek Sharma
Abhishek Sharma
Sushank ChaudharySushank Chaudhary
Sushank Chaudhary
Hybrid free-space optics (FSO) and optical fiber have been viewed as vital transmission techniques to satisfy high bandwidth and extended transmission range requirements under adverse environment conditions in the future last-mile obstruction problem. In this investigation, 80 Gbps data is transmitted on a hybrid FSO and multimode fiber (MMF)-based network using mode division multiplexing of two donut modes, Donut mode 0 and 1, and optical code-division multiplexing (OCDMA) schemes. For the OCDMA schemes, modified new zero-cross-correlation (MNZCC) codes are used, whereas, to add the phases into donut modes, a spiral phase diffuser is used. The purpose of the investigation is to provide an economical, high-speed and advanced last-mile network with adequate resource utilization for hybrid wired/wireless-based systems. The results obtained show achievement of an acceptable BER up to a fixed 100 m FSO link, with the combination of a 385 m MMF link under clear weather conditions. In another case, when the MMF link was fixed at 100 m, an acceptable bit error rate (BER) is achieved at 2.07 km FSO link. Furthermore, the results were obtained in the presence of strong and weak turbulences. A comparison of log-normal and gamma-gamma modeling for scintillations is presented.