Bismuth (III) Telluride (Bi2Te3) Based Topological Insulator Embedded in PVA as Passive Saturable Absorber in Erbium-Doped Fiber Laser

International Technical Postgraduate Conference

Apandi, N.H.M.^1 ; Ahmad, F.^1 ; Ambran, S.^1 ; Yamada, M.^1 ; Harun, S.W.^2

Dept. of Electronic Systems Engineering, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur

54100, Malaysia^1

Photonic Research Center, University of Malaya, Kuala Lumpur

50603, Malaysia^2

关键词: Erbium doped fiber laser;    Operating wavelength;    Output peak power;    Passive Q-switched;    Poly (vinyl alcohol) (PVA);    Pulse energies;    Repetition rate;    Topological insulators;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/210/1/012032/pdf
DOI  :  10.1088/1757-899X/210/1/012032

来源: IOP

【 摘 要 】

We demonstrate a passive Q-switched by integrating a Bismuth (III) Telluride (Bi2Te3) dispersed in Polyvinyl Alcohol (PVA) as passive saturable absorber. The experimental works show that the proposed passive saturable absorber operated at input power ranging from 21.69 mW to 126.89 mW with central operating wavelength of 1531 nm. We observe the tunable repetition rate from 40 kHz to 166 kHz with the shortest pulse width of 1.32 μs. The laser produced maximum instantaneous output peak power and pulse energy of 1.62 mW and 11.2 nJ, respectively. The signal to noise ratio was measured at 49 dB which indicates the stability of the generated pulse.