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- W2997485861 abstract "The yellow spectral region has applications in medicine, ophthalmology, acne treatment, and ytterbium based optical clock, which is recommended as the secondary representation of System International (SI) second. Lasing in this spectral region can be achieved by using sum frequency and second harmonic generation, which are complex methods. Here, we have reported the first (to the best of our knowledge) GaN laser diode pumped dysprosium (Dy) doped ZBLAN fibre laser for yellow lasing using a simple setup. Due to the four-level system, the laser oscillation threshold is low and about 7.0 mW for 0.6 m of Dy-doped ZBLAN fibre. However, the maximum slope efficiency is only 2.3% with the available 2% output coupler. In our investigation, we have identified two possible factors, fibre background loss and pump excited state absorption, for such a low slope efficiency." @default.
- W2997485861 created "2020-01-10" @default.
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- W2997485861 date "2019-12-30" @default.
- W2997485861 modified "2023-09-24" @default.
- W2997485861 title "GaN laser diode pumped dysprosium doped ZBLAN fibre laser for yellow emission" @default.
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- W2997485861 doi "https://doi.org/10.1117/12.2539950" @default.
- W2997485861 hasPublicationYear "2019" @default.
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