1. Chromatic Dispersion. http://www.porta-optica.org

2. What is dispersion?

3. Effects of dispersion

4. Overview

5. Differential delay

6. Increased Bit Error Rate

7. Types of dispersion

9. Chromatic Dispersion Definition

11. The cause of Chromatic Dispersion

12. Dispersion by design

13. Fibers type

14. Optical Fibers: Attenuation & Dispersion

15. Why is measuring Dispersion so important?

16. Dispersion compensation

17. Dispersion compensation for DWDM

18. CD management Prevention: 1. Compensation: - Fibers DCF & RDF, - Bragg Gratings technique. 2. Decreasing impulse spectral width: - external modulation, - pulse shaping of current modulation. 3. Soliton transmission.

20. CD compensation D 1 L 1 - D k L k =0, Dispersion [ps/nm] L [km] 200400600800 400 600 800 200 1000 NZDSF DCF

22. Managing Chromatic Dispersion

23. Dispersion Compensation Method Bragg gratings

24. Dispersion Compensation Method Bragg gratings

25. Fiber Dispersion Characteristics

26. Dispersion compensation for DWDM

27. References http://www.porta-optica.org Reichle & De-Massari