Frequency combs have become a prominent research area in optics. Of particular interest as integrated comb technology are chip-scale sources, such as semiconductor lasers and microresonators, which consist of resonators embedding a nonlinear medium either with or without population inversion. Such active and passive cavities were so far treated distinctly. Here we propose a formal unification by introducing a general equation that describes both types of cavities. The equation also captures the physics of a hybrid device - a semiconductor ring laser with an external optical drive - in which we show the existence of temporal solitons, previously identified only in microresonators, thanks to symmetry breaking and self-localization phenomena typical of spatially extended dissipative systems.
Unifying Frequency Combs in Active and Passive Cavities: Temporal Solitons in Externally Driven Ring Lasers / Columbo, L.; Piccardo, M.; Prati, F.; Lugiato, L. A.; Brambilla, M.; Gatti, A.; Silvestri, C.; Gioannini, M.; Opacak, N.; Schwarz, B.; Capasso, F.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - ELETTRONICO. - 126:17(2021), p. 173903. [10.1103/PhysRevLett.126.173903]
|Titolo:||Unifying Frequency Combs in Active and Passive Cavities: Temporal Solitons in Externally Driven Ring Lasers|
|Data di pubblicazione:||2021|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1103/PhysRevLett.126.173903|
|Appare nelle tipologie:||1.1 Articolo in rivista|