Fig. 1. Schematic diagram of stretcher

Fig. 2. Schematic diagrams of ray tracing. (a) 1200 lp/mm and 1000 lp/mm; (b) 600 lp/mm and 300 lp/mm

Fig. 3. Influence of equivalent grating spacing on dispersion with different line pairs

Fig. 4. Influence of equivalent grating spacing on dispersion with different incident angles

Fig. 5. Experimental setup diagram of one way Martinez stretcher

Fig. 6. Different equivalent grating distance corresponds to compensated fiber length

Fig. 7. Pulse width before and after incident into 10.0 m fiber after dispersion compensation module. (a) Before incident; (b) after incident

Fig. 8. Pulse width before and after incident into 4.3 m fiber after dispersion compensation module. (a) Before incident; (b) after incident

Fig. 9. Pulse width before and after incident into 4.3 m fiber after DCF. (a) Before incident; (b) after incident

Fig. 10. Comparison of DCM and DCF compensation results

Fig. 11. Structure diagram of modular dispersion compensation