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Raman pumps power distribution optimization for maximum overall gain and flatness of a hybrid SOA/EDFA/Raman optical amplifier

  • Ajaybeer Kaur ORCID logo EMAIL logo , Manjit Singh Bhamrah and Ahmad Atieh
Published/Copyright: May 10, 2022
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Abstract

A hybrid optical amplifier (HOA) is designed and optimized for the transmission of 40 dense wavelength division multiplexed system (DWDM) channels modulated at 10 Gbps having 25 GHz spacing at the edge of the L and U wavelength bands over more than 250 km. Multi-parameter optimization process is used to achieve the highest gain and best gain flatness. Different power combinations distributed among four lasers of a total forward pumping power (1270 mW) and total backward pumping power of either 730 mW or 850 mW are investigated for their effect on the hybrid amplifier gain and flatness. The best power distribution among the pumps provides about 31 dB overall gain with a flatness about 0.8 dB and noise figure ∼5.7 dB. It is found that the red-shifted pumps’ wavelengths should be used in the forward direction, while the blue-shifted pumps’ wavelengths should be used in the backward direction.


Corresponding author: Ajaybeer Kaur, Department of Electronics and Communication Engineering, Punjabi University Patiala, Patiala, India, E-mail:

Funding source: Department of Science and Technology New Delhi https://dst.gov.in/

Award Identifier / Grant number: SR/WOS-A/ET-96/2016

Acknowledgement

The author thanks, Department of Science and Technology, Govt. of India, New Delhi for providing financial support through project SR/WOS-A/ET-96/2016 under Women Scientist Scheme-A.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: Department of Science and Technology, New Delhi.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2021-05-15
Accepted: 2022-04-06
Published Online: 2022-05-10
Published in Print: 2024-07-26

© 2022 Walter de Gruyter GmbH, Berlin/Boston

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