A stable noise-like[NL]mode-locked Tm-doped fiber laser[TDFL]relying on a nonlinear optical loop mirror[NOLM]was experimentally presented.Different from the previous NL mode-locked TDFL with NOLM,the entire polarization-maintaining[PM]fiber construction was utilized in our laser cavity,which makes the oscillator have a better resistance to environmental perturbations.The robust TDFL can deliver stable bound-state NL pulses with a pulse envelope tunable from ～14.1 ns to ～23.6 ns and maximum pulse energy of ～40.3 nJ at a repetition rate of ～980.6 kHz.Meanwhile,the all-PM fiber laser shows good power stability[less than ～0.7％]and repeatability.