Passively Q-switched flashlamp pumped Nd:YAG laser using liquid graphene oxide as saturable absorber. (June 2016)

• Record Type: Journal Article
• Authors: Adnan, N.N.; Bidin, N.; Taib, N.A.M.; Haris, H.; Fakaruddin, M.; Hashim, A.M.; Krishnan, G.; Harun, S.W.
• Is Part Of: Optics & laser technology. Volume 80(2016)
• Page Start: 28
• Page End: 32
• Publication Date: 2016-06
• Subjects: Q-switched Nd:YAG laser -- Graphene oxide -- Passive Q-switching; Optics -- Periodicals; Lasers -- Periodicals; Electronic journals; 621.366
• DOI: 10.1016/j.optlastec.2015.12.016
• Languages: English
• ISSNs: 0030-3992

Abstract

Abstract: The performance of passively Q-switched Nd:YAG laser operating at 1060 nm is demonstrated using liquid graphene oxide (GO) composite solution as saturable absorber for the first time. The Q-switched Nd:YAG laser is pumped by a xenon flashlamp. The GO was prepared using the simplified Hummer's method and then mixed with polyethylene oxide to form a composite solution. The Q-switched pulsed laser operates at wavelength of 1064.5 nm with a threshold pump energy of 33.64 J. The maximum output Q-switched laser energy of 41.6 mJ achieved at the maximum pump energy of 81 J. The corresponding pulse width is 98.67 ns. Highlights: Passively Q-switched Nd:YAG laser operating at 1060 nm is demonstrated. Liquid graphene oxide (GO) composite solution as saturable absorber. The GO was prepared using the simplified Hummer's method. The variation of output energy and pulse width at different input energy was studied.