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Theoretical Modelling of Cascaded Er3+-Doped, Tm3+-Doped and Nd3+-Doped Fibers for 0.4 to 2.0 µm Emission Spectra

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Abstract

We present a cascaded system designed with Er3+-doped, Tm3+-doped and Nd3+-doped fibers to realize amplified spontaneous emission (ASE) spectra covering 0.4–2.0 µm. The system is excited with a pump laser emitting 808 nm photons with 500 mW pump power. The emission spectra of the cascaded system covering 0.4–2.0 µm are realized with the Er3+, Tm3+ and Nd3+ ion doping densities optimized to 8 × 1019, 2 × 1020 and 8 × 1020 ion/m3, respectively, and the fiber length optimized to 1m. Numerical methods reveal that the peak ASE power for the cascaded system can reach 20.9 mW. A minimum ASE power of 4.39 mW is attainable. Using numerical calculations and analytical techniques, we provide a detailed insight into optimized Er3+-doped, Tm3+-doped and Nd3+-doped fiber lengths and their doping concentrations for ASE power spectra covering 0.4–2.0 µm. We believe that the cascaded system can potentially provide significant applications in various optical fields which include but not limited to wavelength-division multiplexing, various optical communications and other salient medical imaging processes.

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Authors and Affiliations

  1. State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China

    Sampa Nkonde & Chun Jiang  (姜淳)

Authors
  1. Sampa Nkonde
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  2. Chun Jiang  (姜淳)
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Correspondence to Sampa Nkonde.

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Foundation item: the National Natural Science Foundation of China (Nos. 60377023 and 60672017), the Program for New Century Excellent Talents in Universities (NCET), and the Shanghai Optical Science and Technology Project (No. 05DZ22009)

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Nkonde, S., Jiang, C. Theoretical Modelling of Cascaded Er3+-Doped, Tm3+-Doped and Nd3+-Doped Fibers for 0.4 to 2.0 µm Emission Spectra. J. Shanghai Jiaotong Univ. (Sci.) 24, 754–762 (2019). https://doi.org/10.1007/s12204-019-2122-2

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  • DOI: https://doi.org/10.1007/s12204-019-2122-2

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