Multi-Wavelength Q-Switched Ytterbium-Doped Fiber Laser with Multi-Walled Carbon Nanotubes |
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| Authors: | A H H Al-Masoodi M H M Ahmed H Arof |
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| Institution: | 1. Department of Electrical and Electronics Engineering, Faculty of Engineering, Al-Madinah International University, Shah Alam, Selangor, Malaysia;2. Department of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia |
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| Abstract: | We demonstrate a passively multi-wavelength Q-switched Ytterbium-doped fiber laser (YDFL) based on a multi-wall carbon nanotubes embedded in polyethylene oxide film as saturable absorber. The YDFL generates a stable multi-wavelength with spacing of 1.9 nm as the 980 nm pump power is fixed within 62. 4 mW and 78.0 mW. The repetition rate of the laser is tunable from 10.41 to 29.04 kHz by increasing the pump power from the threshold power of 62.4 mW to 78 mW. At 78 mW pump power, the maximum pulse energy of 38 nJ and the shortest pulse width of 8.87 µs are obtained. |
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| Keywords: | Multi-wavelength laser MWCNTs Q-switching |
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