• Chinese Optics Letters
  • Vol. 16, Issue 2, 020014 (2018)
H. Ahmad*, S. N. Aidit, S. I. Ooi, and Z. C. Tiu
Author Affiliations
  • Photonics Research Centre, University of Malaya, Kuala Lumpur 50603, Malaysia
  • show less
    DOI: 10.3788/COL201816.020014 Cite this Article Set citation alerts
    H. Ahmad, S. N. Aidit, S. I. Ooi, Z. C. Tiu. Tunable passively Q-switched ytterbium-doped fiber laser with mechanically exfoliated GaSe saturable absorber[J]. Chinese Optics Letters, 2018, 16(2): 020014 Copy Citation Text show less
    Material characterization of mechanically exfoliated GaSe SA. (a) Raman spectrum, (b) nonlinear optical profile, (c) FESEM image, and (d) EDX analysis.
    Fig. 1. Material characterization of mechanically exfoliated GaSe SA. (a) Raman spectrum, (b) nonlinear optical profile, (c) FESEM image, and (d) EDX analysis.
    Cavity configuration of a Q-switched YDFL.
    Fig. 2. Cavity configuration of a Q-switched YDFL.
    Typical characteristics of a Q-switched YDFL at pump power of 261 mW. (a) Pulse train, (b) single pulse profile, and (c) RF spectrum of fundamental frequency at 92.6 kHz.
    Fig. 3. Typical characteristics of a Q-switched YDFL at pump power of 261 mW. (a) Pulse train, (b) single pulse profile, and (c) RF spectrum of fundamental frequency at 92.6 kHz.
    Variation of Q-switched pulse parameters (a) repetition rate and pulse width, and (b) output power and pulse energy against pump power.
    Fig. 4. Variation of Q-switched pulse parameters (a) repetition rate and pulse width, and (b) output power and pulse energy against pump power.
    Q-switched output spectra at different wavelengths, covering a tuning range of 40 nm (1042–1082 nm).
    Fig. 5. Q-switched output spectra at different wavelengths, covering a tuning range of 40 nm (1042–1082 nm).
    SAMax. Repetition Rate (kHz)Min. Pulse Width (μs)Max. Pulse Energy (nJ)Tuning Range (nm)Reference
    ZnO501.62.8-[36]
    WS236.73.213.6-[5]
    MoS2742.812240[35]
    Bi2Se329.11.917.9-[37]
    BP44.847.1-[38]
    GaSe92.62.318.840This work
    Table 1. Comparison of Q-switched YDFL Utilizing Different SAs.
    H. Ahmad, S. N. Aidit, S. I. Ooi, Z. C. Tiu. Tunable passively Q-switched ytterbium-doped fiber laser with mechanically exfoliated GaSe saturable absorber[J]. Chinese Optics Letters, 2018, 16(2): 020014
    Download Citation