the BER also at 25 C and 85 C. Except for the modulation voltage at 25 Cof
1.2 Vp-p, all conditions were identical to the eye measurements in Figure 2.17. The
device operates error free with a BER < 10
12
and no error floor even for 85 C.
The penalty at 85 C is only 1 dB compared to the back-to-back error rate at 25 C.
2.10 ARE QDs A HYPE?
Some among the scientific community believe it. In actual fact, we are very far from
having identified all advantages of semiconductor nanostructures for devices and
having disclosed the differences between zero-dimensional and three-dimensional
semiconductors. What do we know about electron–acoustic–phonon–interaction in
QDs? What are the piezoelectric constants in QDs? Until now, model systems
have been investigated. ...