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
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.
(Other nonlinear optical materials; photorefractive and semiconductor materials)
引用本文:
. [J]. 中国物理快报, 2017, 34(4): 44202-044202.
N. A. Aziz, A. A. Latiff, M. Q. Lokman, E. Hanafi, S. W. Harun. Zinc Oxide-Based Q-Switched Erbium-Doped Fiber Laser. Chin. Phys. Lett., 2017, 34(4): 44202-044202.
2017, Vol. 34 
