Fig. 1. Schematic structure of the chalcogenide glass film sample

Fig. 2. Experimental setup for GSS exposure

Fig. 3. (a) Sample of GSS exposure; (b) Optical microscope images of embedded chalcogenide glass optical waveguide

Fig. 4. Experimental setup for optical waveguide coupling

Fig. 5. Coupling efficiency of the input fiber to the waveguide

Fig. 6. Input fiber-optical waveguide end-coupling

Fig. 7. Schematic of the simulation structure

Fig. 8. Waveguide mode field distributions. (a) Quasi-TE mode; (b) Quasi-TM mode

Fig. 9. Simulation results of the coupling efficiency of the input fiber to the waveguide