Mohamad F. Baharom,Salam M. Azooz,Ahmad H. A. Rosol,Moh Yasin,Sulaiman Wadi Harun.Vanadium pentoxide film for microsecond pulse generation in 1.5-μm region[J].Optoelectronics Letters,2022,(1):29-34 Vanadium pentoxide film for microsecond pulse generation in 1.5-μm region Author Name Affiliation Mohamad F. Baharom  Department of Electrical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia  Salam M. Azooz  Department of Communication Engineering, Engineering Technical College, Al-Furat Al-Awsat Technical University, Najaf, Iraq  Ahmad H. A. Rosol  Department of Electrical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia  Moh Yasin  Department of Physics, Faculty of Science and Technology, Airlangga University, Surabaya 60115, Indonesia  Sulaiman Wadi Harun  Department of Electrical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia Department of Physics, Faculty of Science and Technology, Airlangga University, Surabaya 60115, Indonesia  Abstract:       Q-switched erbium doped fiber laser (EDFL) was passively realized using vanadium pentoxide (V2O5) embedded into polyethylene glycol (PEG) film as saturable absorber (SA). The laser could successfully generate stable self-starting pulses when the V2O5 film was placed in an EDFL cavity. It operated at 1 562.4 nm wavelength. The repetition rate can be varied from 91.7 kHz to 128.2 kHz while the pulse width shrank from 10.90 μs to 7.81 μs with rising pump power from 110.9 mW to 166.5 mW. The pulse energy recorded was 3.2 nJ at pump power of 166.5 mW. The results indicate that the saturable absorption of V2O5 has promising nonlinear photonic applications especially in fiber laser development for 1.5-μm region. Hits: 336 Download times: 3 View Full Text    Download reader