Title :
Passively Q-switched linear-cavity erbium-doped fiber laser based on graphene saturable absorber
Author :
Da Lv ; Heping Li ; Handing Xia ; Shangjian Zhang ; Yang Liu ; Zegao Wang ; Yuanfu Chen
Author_Institution :
Sch. of Optoelectron. Inf., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
We demonstrate a passively Q-switched erbium-doped fiber laser (EDFL) based on graphene as a saturable absorber (SA). Two fiber Bragg gratings (FBGs) are used as the end mirrors in an all-fiber linear cavity. The Q-switched EDFL has a pump threshold of 68.2 mW. The minimum pulse duration is 0.85 μs and the highest pulse energy is 40.9 nJ. The pulse repetition rate of the fiber laser can be widely changed from 51.1 to 118.1 kHz by increasing the pump power from 68.2 to 400 mW.
Keywords :
Bragg gratings; Q-switching; erbium; fibre lasers; graphene; optical saturable absorption; Er; FBG; all-fiber linear cavity; end mirror; energy 40.9 nJ; fiber Bragg gratings; frequency 51.1 kHz to 118.1 kHz; graphene saturable absorber; linear-cavity erbium-doped fiber laser; passively Q-switched EDFL; passively Q-switched erbium-doped fiber laser; power 68.2 mW to 400 mW; pulse duration; pulse energy; pulse repetition rate; time 0.85 mus; Cavity resonators; Erbium-doped fiber lasers; Graphene; Laser excitation; Optical fiber devices; Power lasers; Pump lasers; Q-switching graphene saturable absorber; fiber laser;
Conference_Titel :
Optical Communications and Networks (ICOCN), 2013 12th International Conference on
Conference_Location :
Chengdu
DOI :
10.1109/ICOCN.2013.6617209
