TFPS Telcordia Qualification.pdf - GigOptix.com
TFPS Telcordia Qualification.pdf - GigOptix.com
TFPS Telcordia Qualification.pdf - GigOptix.com
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Modulator Effects and Materials – Cont.<br />
Effect Electro‐Optic Effect Free Carrier Plasma Dispersion<br />
Effect<br />
Material LiNbO3 EO Polymers InP, GaAs<br />
V p dependence<br />
Refractive index (n)<br />
(@1550nm)<br />
V<br />
<br />
<br />
d<br />
3<br />
n r L<br />
Fast effect, femtoseconds for polymers.<br />
X‐cut: 2.15<br />
Z‐cut: 2.21<br />
ij<br />
V f ( ,<br />
n,<br />
L,<br />
Vbias , ,<br />
T , N,<br />
P)<br />
<br />
The effect limits the modulation<br />
speed, bandwidth,
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