Open Access

ARTICLE

Performance Enhancement of Praseodymium Doped Fiber Amplifiers

Abdullah G. Alharbi¹, Jawad Mirza², Mehak Raza³, Salman Ghafoor^4,*

1 Department of Electrical Engineering, Faculty of Engineering, Jouf University, Sakaka, 42421, Saudi Arabia
2 SEECS Photonics Research Group, Islamabad, 44000, Pakistan
3 Institute of Space Technology, Islamabad, 44000, Pakistan
4 School of Electrical Engineering and Computer Science (SEECS), National University of Sciences and Technology (NUST), Islamabad, 44000, Pakistan

* Corresponding Author: Salman Ghafoor. Email:

Computers, Materials & Continua 2022, 73(3), 5411-5422. https://doi.org/10.32604/cmc.2022.029317

Received 01 March 2022; Accepted 17 May 2022; Issue published 28 July 2022

Abstract

In this paper, we report a simulation study on the performance enhancement of Praseodymium doped silica fiber amplifiers (PDFAs) in O-band (1270–1350 nm) in terms of small signal gain, power conversion efficiency (PCE), and output optical power by employing bidirectional pumping. The PDFA performance is examined by optimizing the length of Praseodymium doped silica fiber (PDF), its mode-field diameter (MFD) and the concentration of Pr³⁺. A small-signal peak gain of 56.4 dB, power conversion efficiency (PCE) of 47%, and output optical power of around 1.6 W (32 dBm) is observed at optimized parameters for input signal wavelength of 1310 nm. Minimum noise figure (NF) of 4.1 dB is observed at input signal wavelength of 1310 nm. Moreover, the effect of varying the pump wavelength and pump power on output optical power of the amplifier and amplified spontaneous emission (ASE) noise is also investigated, respectively. Finally, the impact of ion-ion interaction (up-conversion effect) on small-signal gain of the amplifier is also studied by considering different values of up-conversion coefficient.

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Keywords

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