We report experimental demonstration of graphene mode-locked operation of T m 3 + : Y L i F 4 (YLF) and T m 3 + : K Y 3 F 10 (KYF) lasers near 2.3 µm. To scale up the intracavity pulse energy, the cavity was extended, and double-end pumping was employed with a continuous-wave, tunable T i 3 + : s a p p h i r e laser delivering up to 1 W near 780 nm. The extended T m 3 + : K Y F laser cavity was purged with dry nitrogen to eliminate pulsing instabilities due to atmospheric absorption lines, but this was not needed in the case of the T m 3 + : Y L F laser. Once initiated by graphene, stable uninterrupted mode-locked operation could be maintained with both lasers. With the extended cavity T m 3 + : Y L F laser, 921 fs pulses were generated at a repetition rate of 17.2 MHz at 2304 nm. 739 fs pulses were obtained at the repetition rate of 54 MHz from the T m 3 + : K Y F laser at 2340 nm. The corresponding pulse energy and peak power were 2.4 nJ and 2.6 kW for the T m 3 + : Y L F laser, and 1.2 nJ and 1.6 kW for the T m 3 + : K Y F laser. We foresee that it should be possible to generate shorter pulses at higher pump levels.