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Surface-plasmonic right-angle waveguide amplifiers

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Abstract

We propose a surface-plasmonic right-angle bend waveguide with bismuth ion-doped glass film as core layer and Ag films as cladding layers for first time, to the best of our knowledge. Theoretical analysis shows that the right-angle has bend and absorption losses of 3.17 dB. The rate equations and power evolution equations of high concentration bismuth-doped glass film are setup and solved to analyze the effect of the waveguide length and active ion concentration on the signal gain and Noise Figure (NF). The theoretical results predict that with the pump power 100 mW, the active ion concentration 2.0×1026 ions/m3 and the right-angle waveguide size 1.0 cm×1.0 cm, small-signal unit-length net gain can reach 15.32 dB with NF less than 5.0 dB.

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Acknowledgments

This work was supported by National Natural Science Foundation of China (Grant Nos. 60377023, 61671306) and Science and Technology Innovation Commission of Shenzhen (Grant No. JCYJ20160328- 145357990).

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Authors and Affiliations

  1. College of Information Engineering, Shenzhen University, Shenzhen, 518060, China

    Jianhua Ji, Guirong Zhang, Ke Wang, Ming Xu, Lu Sun & Chun Jiang

  2. State Key Laboratory of Advanced Optical communication Systems and Networks, Shanghai Jiao Tong University, Shanghai, 20040, China

    Lu Sun & Chun Jiang

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  1. Jianhua Ji
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  2. Guirong Zhang
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  3. Ke Wang
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  4. Ming Xu
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  5. Lu Sun
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  6. Chun Jiang
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Correspondence to Jianhua Ji.

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Ji, J., Zhang, G., Wang, K. et al. Surface-plasmonic right-angle waveguide amplifiers. Sci. China Inf. Sci. 61, 062403 (2018). https://doi.org/10.1007/s11432-017-9192-5

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  • DOI: https://doi.org/10.1007/s11432-017-9192-5

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