holmium (cas 15700-49-9) based nanoseconds pulsed fibre laser generation in the 2-micron region
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Add time:09/05/2019 Source:sciencedirect.com
We demonstrate and compare nanoseconds pulse induced by a holmium (cas 15700-49-9) oxide PVA film (HOPF, 50 μm thick) and a Holmium-doped fibre (HDF, 8 cm long) saturable absorber (SA) in a Thulium doped-fibre laser (TDFL) cavity. The HOPF SA produced a nanoseconds pulse operating at 1960 nm wavelength, with a pulse width of 57 ns. On the other hand, the HDF SA produced a pulsed laser operating at 1963 nm wavelength, with a pulse width of 53 ns. The HDF SA established a slightly better maximum pulse energy of 0.87 nJ as compared to the HOPF SA with only 0.62 nJ.
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