Use of a film modulator with single-walled carbon nanotubes for mode locking in a pulse titanium-sapphire laser at a wavelength of 810 nm

[摘要]：The feasibility of mode locking in a pulsed laser at a wavelength of 810 nm was shown when a carboxymethylcellulose film with single-walled carbon nanotubes was used as a saturable absorber. With the use of such a film modulator for passive mode locking in the titanium-sapphire laser, a train of continuous-wave ultrashort pulses was obtained. The energy and the duration of a single pulse in the train were 0.4 nJ and 600 fs, respectively.

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