Abstract

By using reflective single-walled carbon nanotube as the saturable absorber, passively continuous-wave mode-locked of Nd:YVO 4 /KTP green laser was realized for the first time. The 532 nm mode-locked pulse width was estimated to be approximately 7.1 ps. The maximum average output power of 456 mW at 532 nm was obtained at a pump power of 7.35 W, corresponding to the repetition rate of 87.14 MHz. The single pulse energy and peak power were 5.23 nJ and 0.74 kW, respectively. • Used the reflective carbon nanotube as saturable absorber. • The pulse duration of green laser as short as 7.1 ps. • It is the first time to use RSWCNT-SA to realize the CW mode locked green laser.

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