Ti3AlC2 coated D-shaped fiber saturable absorber for Q-switched pulse generation
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1.School of Electrical Engineering, College of Engineering, Universiti Teknologi MARA, Dungun 23000, Malaysia;2. Department of Communication Engineering, Engineering Technical College, Al-Furat Al-Awsat Technical University, Najaf, Iraq;3. Department of Electrical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia;4. Department of Engineering, Faculty of Advanced Technology and Multidiscipline, Airlangga University, Surabaya, Indonesia

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    Abstract:

    In this letter, a titanium aluminum carbide (Ti3AlC2) coated D-shaped fiber is proposed and demonstrated as a new saturable absorber (SA) for Q-switched laser pulse generation. In preparing the SA, the Ti3AlC2 powder is dispersed in liquid polyvinyl alcohol (PVA) before the solution is dropped and left to dry onto a polished surface of D-shape fiber. The SA is added to an erbium-doped fiber laser (EDFL) cavity to modulate the cavity loss for Q-switching. The Q-switched laser is obtained at 1 561 nm. The pulse width of the pulses can be varied between 7.4 µs and 5.1 µs with a corresponding repetition rate range from 41.26 kHz to 54.35 kHz, when the pump power is increased from 42.2 mW to 71.5 mW. At 71.5 mW pump, the pulse energy is obtained at 70.3 nJ. The signal-to-noise ratio (SNR) of the fundamental frequency is recorded at 67 dB, which indicates the stability of the laser.

    Reference
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Suziana Omar, Salam M. Azooz, Ahmad Haziq Aiman Rosol, Zulzilawati Jusoh, Baktiar Musa,,Sulaiman Wadi Harun. Ti3AlC2 coated D-shaped fiber saturable absorber for Q-switched pulse generation[J]. Optoelectronics Letters,2022,18(8):468-471

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History
  • Received:February 13,2022
  • Revised:April 13,2022
  • Online: September 09,2022
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