Ab Razak, M.Z. and Saleh, Z.S. and Ahmad, F. and Anyi, C.L. and Harun, Sulaiman Wadi and Arof, Hamzah (2016) High-power Q-switched erbium-ytterbium codoped fiber laser using multiwalled carbon nanotubes saturable absorber. Optical Engineering (OE), 55 (10). p. 106112. ISSN 0091-3286, DOI https://doi.org/10.1117/1.OE.55.10.106112.
Full text not available from this repository.Abstract
Due to an enormous potential of pulsed lasers in applications such as manufacturing, metrology, environmental sensing, and biomedical diagnostics, a high-power and stable Q-switched erbium-ytterbium codoped double-clad fiber laser (EYDFL) incorporating of multiwall carbon nanotubes (MWCNTs) saturable absorber (SA) made based on polyvinyl alcohol (PVA) with a 3:2 ratio is demonstrated. The SA was fabricated by mixing a dilute PVA solution with an MWCNTs homogeneous solution. Subsequently, the mixture was sonicated and centrifuged to produce a homogeneous suspension that was left to dry at room temperature to form the MWCNTs-PVA film. The SA was formed by inserting the film between a pair of FC/PC fiber connectors. Then, it was integrated into the EYDFL's ring cavity, which uses a 5-m-long erbium-ytterbium codoped fiber (EYDF). The lasing threshold for the Q-switched EYDFL was at 330 mW. At the maximum available pump power of 900 mW, the proposed EYDFL produced Q-switched pulses with a repetition rate of 74.85 kHz, pulsewidth of ∼3.6 μs, and an average output power of about 5 mW. The maximum energy per pulse of ∼85 nJ was obtained at pump power of ∼700 mW with peak power of 21 mW.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Erbium-ytterbium codoped fiber laser; Multiwalled carbon nanotubes; Passive saturable absorber; Q-switching |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 11 Oct 2017 03:44 |
| Last Modified: | 09 Oct 2018 03:34 |
| URI: | http://eprints.um.edu.my/id/eprint/17960 |
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