| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Q-Switched Ytterbium-Doped Fiber Laser Using Black Phosphorus as Saturable Absorber |
| A. H. H. Al-Masoodi 1, M. H. M. Ahmed 1, A. A. Latiff 2, H. Arof 1, S. W. Harun 1,2** |
1Department of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
2Photonics Research Center, University of Malaya, Kuala Lumpur 50603, Malaysia
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| Cite this article: |
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A. H. H. Al-Masoodi&thinsp, M. H. M. Ahmed&thinsp, A. A. Latiff&thinsp et al 2016 Chin. Phys. Lett. 33 054206 |
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Abstract We demonstrate a Q-switched ytterbium-doped fiber laser (YDFL) using a newly developed multi-layer black phosphorous (BP) saturable absorber (SA). The BP SA is prepared by mechanically exfoliating a BP crystal and sticking the acquired BP flakes onto a scotch tape. A small piece of the tape is then placed between two ferrules and incorporated in a YDFL cavity to achieve a stable Q-switched operation in a 1.0 μm region. The laser has a pump threshold of 55.1 mW, a pulse repetition rate that is tunable from 8.2 to 32.9 kHz, and the narrowest pulse width of 10.8 μs. The highest pulse energy of 328 nJ is achieved at the pump power of 97.6 mW. Our results show that multi-layer BP is a promising SA for Q-switching laser operation.
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Received: 29 January 2016
Published: 31 May 2016
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| PACS: |
42.60.Fc
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(Modulation, tuning, and mode locking)
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42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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42.65.Tg
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(Optical solitons; nonlinear guided waves)
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