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A numerical investigation of the gain profile of a PbSe quantum dot/Raman hybrid amplifier



  1. Faculty of Science, Physics Department, Alexandria University, Mohrambeik 21511, Alexandria, Egypt
  2. Faculty of Engineering, Basic Engineering Science Department, International Academy of Engineering and Media Science, Cairo, Egypt


A PbSe quantum dot (PbSe-QD)/Raman hybrid optical fiber amplifier is proposed. The gain profile and its dependence on the constituent amplifiers length and pumping power is studied and compared to a PbSe-QD only and Raman only amplifiers. The values of fiber lengths and pumping power under study for Raman are 5-30 km and 50-400 mW respectively, while for the PbSe-QD are 0-44 cm and 50-300 mW, respectively. By changing the size and distribution of the PbSe quantum dots, pumping scheme and wavelengths of the Raman fiber, this hybrid amplifier would have the advantage of being highly tunable.


Raman, Quantum dots, Hybrid optical amplifier.


O. MAHRAN, N. El-NOHY, H. IBRAHIM, A numerical investigation of the gain profile of a PbSe quantum dot/Raman hybrid amplifier, Optoelectronics and Advanced Materials - Rapid Communications, 15, 5-6, May-June 2021, pp.213-222 (2021).

Submitted at: Oct. 6, 2020

Accepted at: June 11, 2021