Coherence and incoherence in an optical comb

Evgeny A. Viktorov, Tatiana Habruseva, Stephen P. Hegarty, Guillaume Huyet, Bryan Kelleher

Research output: Contribution to journalArticlepeer-review


We demonstrate a coexistence of coherent and incoherent modes in the optical comb generated by a passively mode-locked quantum dot laser. This is experimentally achieved by means of optical linewidth, radio frequency spectrum, and optical spectrum measurements and confirmed numerically by a delay-differential equation model showing excellent agreement with the experiment. We interpret the state as a chimera state.

Original languageEnglish
Article number224101
Number of pages5
JournalPhysical Review Letters
Issue number22
Publication statusPublished - 2 Jun 2014


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