| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Zinc Oxide-Based Q-Switched Erbium-Doped Fiber Laser |
| N. A. Aziz1, A. A. Latiff2, M. Q. Lokman1, E. Hanafi1, S. W. Harun1** |
1Department of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
2Photonics Research Centre, University of Malaya, Kuala Lumpur 50603, Malaysia
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| Cite this article: |
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N. A. Aziz, A. A. Latiff, M. Q. Lokman et al 2017 Chin. Phys. Lett. 34 044202 |
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Abstract We demonstrate a Q-switched erbium-doped fiber laser (EDFL) using a newly developed zinc oxide- (ZnO) based saturable absorber (SA). The SA is fabricated by embedding a prepared ZnO powder into a poly(vinyl alcohol) film. A small piece of the film is then sandwiched between two fiber ferrules and is incorporated in an EDFL cavity for generating a stable Q-switching pulse train. The EDFL operates at 1560.4 nm with a pump power threshold of 11.8 mW, a pulse repetition rate tunable from 22.79 to 61.43 kHz, and the smallest pulse width of 7.00 μs. The Q-switching pulse shows no spectral modulation with a peak-to-pedestal ratio of 62 dB indicating the high stability of the laser. These results show that the ZnO powder has a great potential to be used for pulsed laser applications.
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Received: 09 January 2017
Published: 21 March 2017
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| PACS: |
42.55.Wd
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(Fiber lasers)
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42.60.Gd
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(Q-switching)
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42.70.Nq
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(Other nonlinear optical materials; photorefractive and semiconductor materials)
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| Fund: Supported by the University of Malaya under Grant No PG173-2015B. |
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