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

• Main Authors: Fauziah, C.M (Author), Harun S.W (Author), Harun, S.W (Author), Latiff A.A (Author), Latiff, A.A (Author), Rosol, A.H.A (Author)
• Format: Article
• Language: English
• Published: Institute of Physics Publishing 2017
• Subjects: 1.55 microns; Erbium; Erbium doped fiber laser; Erbium doped fibers; Fiber lasers; Laser generation; Modulation; Modulation depth; Phosphorus; Pulse repetition rate; Pulsed lasers; Pumping (laser); Q switching; Repetition rate; Ring cavity configuration; Saturable absorbers; Switching operations
• Online Access: View Fulltext in Publisher; View in Scopus

 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. © Published under licence by IOP Publishing Ltd.