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Design and placement of EAM based wavelength converter in resilient network with arbitrary topology

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Abstract

In all-optical WDM network an effective usability of wavelength converter and further its placement at appropriate node in the network is the key challenge. To fulfill this challenge we proposed an efficient Electro absorption modulator (EAM) based wavelength converter and further its placement in all-optical wavelength routed network based on arbitrary ring topology which employs 10 Gbps NRZ modulated signal to minimize the system blocking problem. Here EAM based wavelength converter is used due to its unique qualitiesi.e. the fast absorption recovery time as compared to gain recovery time of semiconductor optical amplifiers (SOAs), compactness, low cost and compatibility with monolithic integration.The performance of the system has been validated in terms of call blocking probability, impact of variation in fiber length at 280 km, 360 km, 480 km and 560 km on quality; with and without placement of wavelength converter. The main contribution of this work is to find the most congested nodes in the ring connected network and then placement of wavelength converter on that particular congested nodes to support maximum number of users to form resilient network. It has been concluded that EAM based wavelength converter placed at utmost congested nodes in WDM network for 480 km fiber length at 5dBm input power, the faithful quality is maintained for every channel.

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Acknowledgements

The authors would like to thank Science & Engineering Research Board, New Delhi for their funding under Core Research Grant vide sanction no: File No. EMR/2017/004162 dated: 01-11-18.

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Authors and Affiliations

  1. Sant Longowal Institute of Engineering and Technology, Longowal, Punjab, 148106, India

    Taranjeet Kaur & Surinder Singh

  2. Department of Electronics and Communication, Punjabi University, Patiala, Punjab, India

    Lovkesh

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  1. Taranjeet Kaur
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  2. Surinder Singh
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  3. Lovkesh
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Correspondence to Surinder Singh.

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Kaur, T., Singh, S. & Lovkesh Design and placement of EAM based wavelength converter in resilient network with arbitrary topology. Opt Quant Electron 55, 270 (2023). https://doi.org/10.1007/s11082-022-04442-9

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