Impact of a temporal sinusoidal phase modulation on the optical spectrum

Christophe Finot, Frederic Chaussard, Sonia Boscolo

Research output: Contribution to journalArticlepeer-review


We discuss the effects of imparting a temporal sinusoidal phase modulation to a continuous wave on the frequency spectrum. While a practical analytical solution to this problem already exists, we present here a physical interpretation based on interference processes. This simple model will help students better understand the origin of the oscillatory structure that can be observed in the resulting spectrum and that is characteristic of Bessel functions of the first kind. We illustrate our approach with an example from the field of optics.
Original languageEnglish
Article number055303
Number of pages15
JournalEuropean Journal of Physics
Issue number5
Early online date26 Jul 2018
Publication statusPublished - 14 Aug 2018


Dive into the research topics of 'Impact of a temporal sinusoidal phase modulation on the optical spectrum'. Together they form a unique fingerprint.

Cite this