Browsing by Author "Qu, Z. S."

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Fabrication and characterization of double-wall carbon nanotube absorber for passive mode-locked Nd:GdVO(4) laser
(2011-10-01)
Wang, Y. G.
;
Qu, Z. S.
;
Liu, J.
;
Tang, J.
;
光電工程學系
Using the vertical evaporation technique we fabricated saturable absorbers by transferring the double-wall carbon nanotubes (DWCNT) onto a hydrophilic quartz substrate. The fast recovery time and the saturation intensity of the absorber were measured to be 228 fs and 130 mu J/cm(2), respectively, at 1060 nm. The modulation depth of the absorber was about 3.7%. Passive mode-locked Nd:GdVO(4) laser was demonstrated. The continuous wave mode-locked pulses pulse duration is 5.6 ps and the largest average output power is 1.2 W at the pump power of 9.5 W. To the best of our knowledge, this is the first demonstration of high power continuous wave mode locking laser with DWCNT absorber.
Fabrication and characterization of double-wall carbon nanotube absorber for passive mode-locked Nd:GdVO4 laser
(2011-10-01)
Wang, Y. G.
;
Qu, Z. S.
;
Liu, J.
;
Tang, J.
;
光電工程學系
Using the vertical evaporation technique we fabricated saturable absorbers by transferring the double-wall carbon nanotubes (DWCNT) onto a hydrophilic quartz substrate. The fast recovery time and the saturation intensity of the absorber were measured to be 228 fs and 130 mu J/cm(2), respectively, at 1060 nm. The modulation depth of the absorber was about 3.7%. Passive mode-locked Nd:GdVO4 laser was demonstrated. The continuous wave mode-locked pulses pulse duration is 5.6 ps and the largest average output power is 1.2 W at the pump power of 9.5 W. To the best of our knowledge, this is the first demonstration of high power continuous wave mode locking laser with DWCNT absorber.