Multi-walled carbon nanotubes saturable absorber in Q-switching flashlamp pumped Nd:YAG laser

Passively Q-switched Nd:YAG laser pumped by flashlamp is demonstrated by using a saturable absorber made of a multi-walled carbon nanotubes-polyethylene oxide (MWCNTs-PEO) film. Two positions of the film are tested in the resonator to optimize its performance. The maximum pulsed energy obtained for...

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Bibliographic Details
Published in:Optics and laser technology 2016-05, Vol.79, p.193-197
Main Authors: Taib, Nur Athirah Mohd, Bidin, Noriah, Haris, Hazlihan, Nadia Adnan, Nurul, Ahmad, M. Fakaruddin Sidi, Wadi Harun, Sulaiman
Format: Article
Language:English
Subjects:
42.55-f
42.60.Gd
42.60.Lh
Carbon
Crystals
Flashlamps
Holes
Keyword
Lasers
Multi wall carbon nanotubes
Multi-walled CNTs
Nd:YAG laser
Oxides
Passive
Pumps
Q-switched
saturable absorber
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Summary:Passively Q-switched Nd:YAG laser pumped by flashlamp is demonstrated by using a saturable absorber made of a multi-walled carbon nanotubes-polyethylene oxide (MWCNTs-PEO) film. Two positions of the film are tested in the resonator to optimize its performance. The maximum pulsed energy obtained for the Q-switching operation is 1.68mJ corresponding to 88.36J electrical pump energy. The pulse duration of 83.64ns is achieved with a peak power of 20.1kW. A MWCNTs-PEO-film is a promising saturable absorber because of its simple cavity design, reliable and low cost fabrication compared to normal nonlinear crystal absorber. •Q-switching of Nd:YAG laser pumped by flashlamp was implemented by using MWCNTs.•MWCNTs-PEO film was used as a passive saturable absorber.•Two positions in the resonator were tested to optimize the Q-switched laser.•Maximum pulsed energy was 1.68mJ at 88.36J corresponding to 83.64ns with 20.1kW peak power.
ISSN:0030-3992
1879-2545
DOI:10.1016/j.optlastec.2015.11.014