Journal
IEEE PHOTONICS JOURNAL
Volume 15, Issue 3, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JPHOT.2023.3282027
Keywords
Broadband amplifiers; gain characteristics; PbS nanoparticles; PbS/Er co-doped silica fiber
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We report a novel PbS/Er co-doped silica fiber (PEDF) that exhibits improved spectral properties in the O-band (1260-1360 nm). The PEDF achieves a gain exceeding 15 dB in the range of 1150-1360 nm, with a gain improvement of 6.4-10.9 dB compared to PbS-doped silica fiber in the O-band. The higher concentration of Pb and S in the PEDF core, as well as the more concentrated size distribution of PbS nanoparticles, contribute to its enhanced gain characteristics.
We report a novel PbS/Er co-doped silica fiber (PEDF) with improved spectral properties in O-band (1260-1360 nm). The results show that the gain of the PEDF exceeds 15 dB in the range of 1150-1360 nm. Compared to PbS-doped silica fiber, the PEDF has a gain improvement of 6.4-10.9 dB in O-band. In addition, the concentration of Pb and S in the PEDF core is significantly higher, and the size distribution of PbS nanoparticles is more concentrated in a narrow range. These factors may account for the enhanced gain characteristics of the PEDF. This work reveals the positive effect of co-doping Er3+ ions on the gain characteristics of the PEDF in O-band, and suggests an important research direction for the design of broadband amplifiers and light sources for optical communication with zero dispersion.
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