Holmium based nanoseconds pulsed fibre laser generation in the 2-micron region
Document Type
Article
Publication Date
1-1-2019
Abstract
We demonstrate and compare nanoseconds pulse induced by a Holmium 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. © 2019 Elsevier GmbH
Keywords
Optical fibre laser, Fibre saturable absorber, Holmium, Thin film
Divisions
fac_eng
Funders
Universiti Teknikal Malaysia Melaka and the Kementerian Pelajaran Malaysia for the financial support given under the SLAB/SLAI award,University of Airlangga through Mandate Research Grant (2019)
Publication Title
Optik
Volume
195
Publisher
Elsevier