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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Main Authors: | , , , , |
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Format: | Article |
Published: |
Elsevier Ltd.
2016
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Subjects: | |
Online Access: | http://eprints.utm.my/id/eprint/70037/ http://dx.doi.org/10.1016/j.optlastec.2015.11.014 |
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Institution: | Universiti Teknologi Malaysia |
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 1.68 mJ corresponding to 88.36 J electrical pump energy. The pulse duration of 83.64 ns is achieved with a peak power of 20.1 kW. 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. |
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