Optical modulator state-of-the-art modulation format of silicon-based

摘要

Optical modulators of silicon-based, which is in the form of a multi-segment device using the electrical input data signal format which is modified to solve the problem of attenuation and phase modulation due to the non-linear modulation of the free carrier-based dispersion. This modulator is formed so as to comprise a separate M segments, using a digital signal encoder, to convert the M plurality of drive signals of the modulation segment for the M input data signal of N bits. Here, a ² N / ² M ≧. It is possible to adjust the length of the modulator segments, to solve the problem of non-linear damping. It is possible (beyond the waveguide in combination) is used for the output of the modulator, the phase adjustment of the additional. [Selection Figure 7