[caption id="attachment_3115" align="alignleft" width="300"]
MZI-time-resolved-chirp-and-inetensity-measurement[/caption]
The spectrum of a chirped optical NRZ data stream obtained by an external Mach-Zehnder Modulator (MZM) is analysed using the Apex Technologies Optical Complex Spectrum Analyzer AP2441B/AP2443B. We demonstrate that it is possible to induce chirp without broadening the optical spectrum by employing a MZM with optical power unbalancing in the two waveguides. For standard chirped MZM (different electrical field on the two arms), such as z-cut LiNbO3 modulators, the broadening as a function of chirp.
MZI-time-resolved-chirp-and-inetensity-measurement[/caption]
The spectrum of a chirped optical NRZ data stream obtained by an external Mach-Zehnder Modulator (MZM) is analysed using the Apex Technologies Optical Complex Spectrum Analyzer AP2441B/AP2443B. We demonstrate that it is possible to induce chirp without broadening the optical spectrum by employing a MZM with optical power unbalancing in the two waveguides. For standard chirped MZM (different electrical field on the two arms), such as z-cut LiNbO3 modulators, the broadening as a function of chirp.