Fig. 1. Schematic diagram of the cross-sectional structure of Pt-FCM and ultra-fine simulation mesh

Fig. 2. Real part of effective refractive index and confinement loss as a function of cladding radius for modes in Pt-FCM

Fig. 3. Energy, electric field and effective refractive index changes of the modes in the microfiber before and after coating

Fig. 4. Intensity distribution of TE₀₁, HE₁₁, TM₀₁ and HE₂₁ mode before and after coating of microfiber

Fig. 5. SEM images of the Pt-FCM and elemental spectrum of the Pt-FCM

Fig. 6. [in Chinese]

Fig. 6. Schematic of polarization measurement

Fig. 7. Output power with different polarization angle incident to Pt-FCM by rotating the HWP₂ and rotating the Glan-Taylor prism

Fig. 8. Nonlinear optical transmittance of the Pt film

Fig. 9. Schematic of the all-fiber mode-locked laser

Fig. 10. Output power of the laser changes with pump power and time

Fig. 11. Pulse width dependent on pump power

Fig. 12. Mode-locked characteristics of the fiber laser