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Innovation and Digital Transformation for a Sustainable World

show that gain of the PDFA varies between 25.23 dB to 44.56 [9] A. G. Alharbi, J. Mirza, M. Raza, and S. Ghafoor,
dB for an input signal wavelength of 1276 nm to 1356 nm of “Performance enhancement of praseodymium doped
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power of 700 mW. Parametric optimization with length, 5411–5422, 2022.
doping concentration, doping radius, numerical aperture,
[10] M. E. Marhic, P. A. Andrekson, P. Petropoulos,
pump power and input power of PDFA has been performed
S. Radic, C. Peucheret, and M. Jazayerifar, “Fiber
to optimize the amplifier performance. The NF of the PDFA
optical parametric amplifiers in optical communication
varies in the range of 4.1 dB to 8.2 dB with a mimimum
systems,” Laser & photonics reviews, vol. 9, no. 1, pp.
NF of 4.1 dB at -30 dBm input power. An acceptable
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Q-factor >6 has been achieved over 90 km transmission while
analyzing the PDFA performance in an optical link. The
[11] C. Gaida, M. Gebhardt, T. Heuermann, Z. Wang,
results provide a feasible solution to the bottleneck of the
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sate-of-the-art C-Band communication using Erbium-doped
instability and thermal effects in thulium-doped fiber
fiber amplifiers (EDFAs). However, the study lacks the
amplifiers under high thermal loads,” Optics Express,
experimental verification which is considered in the future
vol. 29, no. 10, pp. 14 963–14 973, 2021.
scope of this research.
[12] M. M. Khan and R. K. Sonkar, “Numerical modeling
and simulations on splitting of chirped optical pulses in
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