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A Performance Enhancement and High Speed Spectrum Sliced Free Space Optical System

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Abstract

A cost effective Kerr nonlinearity based spectrum sliced (SS) WDM free space optical communication system is demonstrated under different weather instabilities. The investigated supercontinuum spectrum sliced WDM FSO system is evaluated at 2.5 Gbps up to 5 km of link distance. A highly nonlinear fiber is a channel for the generation of high power broad spectrum for spectrum slicing. A dense SS-WDM is investigated at 75 GHz channel spacing among 4 channels to make system bandwidth efficient. The system is investigated for different line coding (return to zero, non return to zero) and advanced modulation format such as compressed spectrum return to zero. A major degrading factor in free space communication i.e. beam divergence is also analyzed for investigated work. Antenna diameters of receiver and transmitter play a vital role in FSO, thus various diameters performances are also studied. The approach is to cater the high-speed data demands and thus system deliberated and demonstrated from 2.5 to 10 Gbps. To strengthen the signal in this FSO system, three optical amplifiers are scrutinized such as erbium doped fiber amplifier (EDFA), semiconductor optical amplifier (SOA) and Raman amplifier in terms of bit error rate and quality factor. Results revealed that EDFA is the best amplifier in investigated SS-WDM-FSO system.

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Authors and Affiliations

  1. Electronics and Communication Engineering, Chandigarh University, Gharuan, Punjab, 140413, India

    Aditi Thakur & Shaina Nagpal

  2. Electronics and Communication Engineering, IKG PTU, Jalandhar, Punjab, 144603, India

    Amit Gupta

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  1. Aditi Thakur
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  2. Shaina Nagpal
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  3. Amit Gupta
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Correspondence to Aditi Thakur.

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Thakur, A., Nagpal, S. & Gupta, A. A Performance Enhancement and High Speed Spectrum Sliced Free Space Optical System. Wireless Pers Commun 100, 1775–1789 (2018). https://doi.org/10.1007/s11277-018-5674-9

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  • DOI: https://doi.org/10.1007/s11277-018-5674-9

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