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Topological cascade laser for frequency comb generation in $\mathcal{PT}$-symmetric structures by Pilozzi, Laura; Conti, Claudio is a scholarly article available to read on EtoBox.

What is Topological cascade laser for frequency comb generation in $\mathcal{PT}$-symmetric structures about?

The cascade of resonant topological structures with $\mathcal{PT}$-symmetry breaking is shown to emit laser light with a frequency-comb spectrum. We consider optically active topological Aubry-Andr\'e-Harper lattices supporting edge-modes at regularly spaced frequencies. When the amplified resonances in the $\mathcal{PT}$-broken regime match the edge modes of the topological gratings, we predict the emission of discrete laser lines. A proper design enables to engineer the spectral features for specific applications. The robustness of the topological protection makes the system very well suited for a novel generation of compact frequency comb emitters for spectroscopy, metrology, and quantum information.

Author

Pilozzi, Laura; Conti, Claudio

Published

2017

Language

EN