1. Polarization mode dispersion _______________________________.

2. Differential group delay is the fundamental measure of PMD.

3. Asymmetry, a major cause for PMD, is simply the fact that the fiber core is diamond-shaped.

4. One cause of polarization mode dispersion is ______________________.

5. In today’s networks, about how far can a signal travel at 40 Gbps before being affected by PMD?

6. Regeneration is an economical way to combat polarization mode dispersion in DWDM systems.

7. A polarization mode dispersion compensator (PMDC) can reduce the effects of dispersion in the fiber to ensure that the optical bits are correctly decoded by the receiver before they are to be routed and switched.