Title :
635-nm Visible Pr3+-Doped ZBLAN Fiber Lasers Q-Switched by Topological Insulators SAs
Author :
Duanduan Wu ; Zhiping Cai ; Yile Zhong ; Jian Peng ; Jian Weng ; Zhengqian Luo ; Nan Chen ; Huiying Xu
Author_Institution :
Dept. of Electron. Eng., Xiamen Univ., Xiamen, China
Abstract :
Passive Q-switching of praseodymium (Pr3+)-doped fiber lasers at 635 nm with topological insulators (TIs) saturable absorbers (SAs) was experimentally demonstrated for the first time. TIs (Bi2Se3, Bi2Te3) nanosheets were embedded in polyvinyl alcohol for film-forming and incorporated into a visible Pr3+-doped fiber laser cavity for Q-switching operation, respectively. The Bi2Se3-based Q-switched fiber laser has a wide range pulse-repetition-rate from 191.6 to 454.5 kHz, and the Bi2Te3 one can be continuously tuned from 164.5 to 403.2 kHz. Both the Q-switching lasers have narrow pulse duration of nanosecond (ns)-level. Our results reveal that the TIs-based SAs are available for pulsed operation in the visible spectral range.
Keywords :
Q-switching; aluminium compounds; barium compounds; bismuth compounds; fibre lasers; lanthanum compounds; laser beams; laser cavity resonators; optical saturable absorption; polymers; praseodymium; sodium compounds; topological insulators; zirconium compounds; Bi2Se3; Bi2Se3-based Q-switched fiber laser; Bi2Te3; TI nanosheets; TI-based SA; ZrF4-BaF2-LaF3-AlF3-NaF:Pr3+; film-forming; frequency 164.5 kHz to 403.2 kHz; passive Q-switching; polyvinyl alcohol; praseodymium-doped fiber lasers; topological insulator saturable absorbers; visible Pr3+-doped ZBLAN fiber laser; visible Pr3+-doped fiber laser cavity; visible spectral range; wavelength 635 nm; Cavity resonators; Mirrors; Optical fibers; Optimized production technology; Power generation; Topological insulators; Q-switched fiber laser; pulse-repetition-rate; topological insulator; visible laser;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2015.2466473
