Ismail, Ezzatul Irradah and Kadir, N.A.A. and Latiff, Anas Abdul and Arof, Hamzah and Harun, Sulaiman Wadi (2019) Passively Q-switched erbium-doped fiber laser using quantum dots CdSe embedded in polymer film as saturable absorber. Optical and Quantum Electronics, 51 (6). p. 182. ISSN 0306-8919, DOI https://doi.org/10.1007/s11082-019-1897-6.
Full text not available from this repository.Abstract
We demonstrate a passively Q-switched erbium doped fiber laser (EDFL) based on quantum dots (QD) CdSe as a saturable absorber (SA). The synthesized CdSe powder was embedded into a poly(methyl methacrylate) (PMMA) using emulsion polymerization process. The film is sandwiched between two fiber connector via an adapter to form a fiber-compatible SA device. By integrating the SA device into the EDFL ring cavity, the stable Q-switched operation is achieved at 1559.35 nm as the pump power is varied within 30–118 mW. The laser has a pump threshold of 20.4 mW. The pulse repetition rate shows an increasing trend from 33.2 to 68.45 kHz, whereas the pulse width exhibits a decreasing trend from 10.04 to 4.30 μs as the pump power is increased from 30 to 118 mW. The highest pulse energy of 11.83 nJ is obtained at a pump power of 118 mW. These results indicate that QD CdSe is a promising SA for Q-switching laser operation. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Q-switching; Quantum dots CdSe; Saturable absorber |
| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 22 Mar 2020 10:17 |
| Last Modified: | 22 Mar 2020 10:17 |
| URI: | http://eprints.um.edu.my/id/eprint/24083 |
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