Thin films incorporating carbon nanotubes used as saturable absorbers to passively mode-lock Erbium-doped fiber lasers

We present a new method to fabricate thin films using single-walled carbon nanotubes and a urethane-based transparent polymer. We construct an Erbium-doped fiber laser to test our films as saturable absorbers to passive mode-lock them. As results, pulse-trains were achieved and we carry on an optimization study about the relation involving cavity length, total cavity dispersion, absorption strength of thin films incorporating SWCNT and laser bandwidth to produce higher bandwidths in passive mode-locking regime.