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A simplified model and gain analysis of Raman-EDFA hybrid amplifier for DWDM system

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Abstract

Present communication providesa hybrid amplifier that can find suitable applications in DWDM optical network. The proposed hybrid amplifier includes EDFA and Raman amplifiers to envisage high gain characteristics for 64 channels in both the S + C band and S + C + L wavelength band (1545–1570 nm). Various parameters of the hybrid amplifier, such as doping concentration, pump power, pump wavelength, and fiber length, is chosen to optimize the gain profile. Aside from this, simulation upshots for individual amplifiers infer that EDFA shows a high gain of 22.1 dB for co-directional pumping, and the Raman amplifier deduces a gain of 12.2 dB for counter-directional pumping, whereas the EDFA-Raman hybrid amplifier bestows a substantial-high gain of 23.03 dB for co-directional pumping configuration. Additionally, it has been inferred that the hybrid amplifier offers a very minimal gain ripple of 0.8 dB, which indicates the gain is almost flat. The pump power, length, and doping parameters of EDFA and Raman amplifiers are optimized to get the flat gain of the Hybrid amplifier. It has been demonstrated that a maximum gain of 23.03 dB for a 64 × 10 Gbps, 25 GHz system is attainable up to 100 km of transmission distance. Hence, considering the aforementioned high gain and flat gain characteristics, the suggested EDFA-Raman hybrid amplifier opens up an avenue for future optical dense wavelength division multiplexing systems.

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Authors and Affiliations

  1. Department of Electronics and Telecommunication Engineering, Pune Institute of Computer Technology (PICT), Pune, India

    Dipika D. Pradhan

  2. Duy Tân University, 254 Nguyễn Văn Linh, Thạc Gián, Thanh Khê, Đà Nẵng, 550000, Vietnam

    Subhankar Das

  3. Department of Electronics and Communication Engineering, Gandhi Institute for Technological Advancement (GITA), Bhubaneswar, India

    G. Palai

  4. Department of Electronics and Telecommunication Engineering, JSPM Narhe Technical Campus, Pune, India

    M. M. Sardeshmukh

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  1. Dipika D. Pradhan
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  2. Subhankar Das
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  3. G. Palai
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  4. M. M. Sardeshmukh
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Correspondence to G. Palai.

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Pradhan, D.D., Das, S., Palai, G. et al. A simplified model and gain analysis of Raman-EDFA hybrid amplifier for DWDM system. Opt Quant Electron 54, 382 (2022). https://doi.org/10.1007/s11082-022-03788-4

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  • DOI: https://doi.org/10.1007/s11082-022-03788-4

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