The generation of Q-switched erbium-doped fiber laser using black phosphorus saturable absorber with 8% modulation depth

International Technical Postgraduate Conference

Fauziah, C.M.^1,2 ; Rosol, A.H.A.^3 ; Latiff, A.A.^4,5 ; Harun, S.W.^2

Politeknik Sultan Azlan Shah, Perak, Behrang

35950, Malaysia^1

Department of Electrical Engineering, University of Malaya, Kuala Lumpur

50603, Malaysia^2

Faculty of Electrical Engineering, Universiti Teknologi Mara, Selangor, Shah Alam, 40450, Malaysia^3

Photonics Research Centre, University of Malaya, Kuala Lumpur

50603, Malaysia^4

Faculty of Electronic and Computer Engineering (FKEKK), Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, Durian Tunggal, Melaka

76100, Malaysia^5

关键词: 1.55 microns;    Erbium doped fiber laser;    Erbium doped fibers;    Laser generation;    Modulation depth;    Repetition rate;    Ring cavity configuration;    Switching operations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/210/1/012043/pdf
DOI  :  10.1088/1757-899X/210/1/012043

来源: IOP

【 摘 要 】

We report a generation of the Q-switched laser operating in 1.55-micron region by using black phosphorus (BP) as a saturable absorber (SA). A 980-nm laser diode was pumped into Erbium-doped fiber (EDF) gain medium in ring cavity configuration. The BP-based SA was prepared by mechanically exfoliating the BP crystal using scotch tape. The obtained BP-tape SA has a modulation depth of 8 %. To realize a Q-switching operation, a small piece of the tape is then integrated into between two fiber ferrule tips. A stable Q-switching operation started at 40 mW. The maximum repetition rate obtainable at 28.57 kHz, with pulse width of 5.35 μs. This finding shows the BP is one of the promising material to work as an SA for pulsed laser generation.