American Journal of Electrical and Electronic Engineering
ISSN (Print): 2328-7365 ISSN (Online): 2328-7357 Website: Editor-in-chief: Naima kaabouch
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American Journal of Electrical and Electronic Engineering. 2019, 7(4), 94-98
DOI: 10.12691/ajeee-7-4-2
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Principle of Coherence Optical Systems-Current Applications and Future Challenges

Arun Agarwal1, , Kabita Agarwal2, Gourav Misra3 and Subrat Kumar Panda4

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

Pub. Date: September 20, 2019

Cite this paper:
Arun Agarwal, Kabita Agarwal, Gourav Misra and 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


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.

optical systems WDM coherent bandwidth signal processing digital receivers

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[2]  Kazuro Kikuchi, M. Nakazawa et al. (eds.), , “Coherent Optical Communications: Historical Perspectives and Future Directions”, High Spectral Density Optical Communication Technologies, Optical and Fiber Communications Reports 6, C Springer-Verlag Berlin Heidelberg 2010.
[3]  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.