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Monika Nehra and Deepak Kedia, Design of Optical I/Q Modulator Using Dual-drive Mach Zehnder Modulators in Coherent Optical-OFDM System, J. Opt. Commun. 2018; 39(2): 155-159.

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Principle of Coherence Optical Systems-Current Applications and Future Challenges

1Department of ECE, Institute of Technical Education & Research (ITER), Siksha ‘O’ Anusandhan Deemed to be University, Khandagiri Square, Bhubaneswar-751030, Odisha, India

2Department of Electronics and Instrumentation Engineering, College of Engineering & Technology (CET), Ghatikia, Kalinga Nagar, Bhubaneswar-751003, Odisha, India

3School of Electronic Engineering, Dublin City University, Glasnevin, Dublin 9, Ireland

4Department of ECE, Gandhi Institute For Technology (GIFT), Gramadiha, PO-Gangapada, Bhubaneswar-752054, Odisha, India


American Journal of Electrical and Electronic Engineering. 2019, Vol. 7 No. 4, 94-98
DOI: 10.12691/ajeee-7-4-2
Copyright © 2019 Science and Education Publishing

Cite this paper:
Arun Agarwal, Kabita Agarwal, Gourav Misra, Subrat Kumar Panda. Principle of Coherence Optical Systems-Current Applications and Future Challenges. American Journal of Electrical and Electronic Engineering. 2019; 7(4):94-98. doi: 10.12691/ajeee-7-4-2.

Correspondence to: Arun  Agarwal, Department of ECE, Institute of Technical Education & Research (ITER), Siksha ‘O’ Anusandhan Deemed to be University, Khandagiri Square, Bhubaneswar-751030, Odisha, India. Email: arunagrawal@soa.ac.in

Abstract

This paper reviews the concept of coherent optical systems as future digital optical communication systems having capacity of achieving 100Gbps speed. While the transmission capacity increases in wavelength-division multiplexed (WDM) system, coherent technologies have been in large interest in recent years. The interest lies in finding methods of increasing the bandwidth demand with multilevel modulation formats based on coherent technologies. We also discuss about requirements and challenges in implementation of respective digital receivers and associated signal processing.

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