Mode-locked thulium doped fibre laser with copper thin film saturable absorber
We demonstrate the generation of mode-locked Thulium-Doped Fibre Laser by employing a newly developed saturable absorber (SA) based on copper (Cu) thin film. The SA was prepared by depositing nano-sized particles of Cu onto the surface of polyvinyl alcohol (PVA) film through the E-Beam evaporation p...
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| Main Authors: | , , , , , |
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| Format: | Article |
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Taylor & Francis
2019
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| Subjects: | |
| Online Access: | http://eprints.um.edu.my/23947/ https://doi.org/10.1080/09500340.2019.1622048 |
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| Summary: | We demonstrate the generation of mode-locked Thulium-Doped Fibre Laser by employing a newly developed saturable absorber (SA) based on copper (Cu) thin film. The SA was prepared by depositing nano-sized particles of Cu onto the surface of polyvinyl alcohol (PVA) film through the E-Beam evaporation process. A stable mode-locking pulse train operating at 1951 nm was successfully generated by introducing the Cu PVA SA into a laser cavity. The laser generated a pulse train at the fundamental frequency of 8.5 MHz with a calculated minimum pulse width of 14.8 ps. This demonstration proves that the Cu PVA based SA is suitable for generating mode-locked fibre laser at 2 µm region. © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group. |
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