Optical devices which show different behaviors depending on the propagation direction of the light cannot be realized just by using optical passive systems in the linear regime because of the Lorentz reciprocity theorem (LRT). However, by using a non-Hermitian and nonlinear Taiji microresonator (MR) based on a silicon oxynitride (SiON) MR with an embedded S-shaped branch (see Fig. 1 (a) ) we have demonstrated non-reciprocity [1], [2]. In this work, we study the role of the bus waveguide and we show that it is possible to break LRT for different propagation directions. In particular, we evidence the role of the bus waveguide position asymmetry with respect to the Taiji MR and of the Fabry-Pérot (FP) oscillations generated by the waveguide facets.
Role of the bus waveguide in the nonlinear reciprocity breaking in a Taiji microresonator / Franchi, R.; Munoz De Las Heras, Alberto; Biasi, S.; Ghulinyan, M.; Carusotto, I.; Pavesi, L.. - (2021), pp. 1-1. ((Intervento presentato al convegno 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021 tenutosi a deu nel 2021 [10.1109/CLEO/Europe-EQEC52157.2021.9541582].
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Titolo: | Role of the bus waveguide in the nonlinear reciprocity breaking in a Taiji microresonator | |
Autori: | Franchi, R.; Munoz De Las Heras, Alberto; Biasi, S.; Ghulinyan, M.; Carusotto, I.; Pavesi, L. | |
Autori Unitn: | ||
Titolo del volume contenente il saggio: | 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021 | |
Luogo di edizione: | Optical Society of America | |
Casa editrice: | Institute of Electrical and Electronics Engineers Inc. | |
Anno di pubblicazione: | 2021 | |
Codice identificativo Scopus: | 2-s2.0-85117619056 | |
ISBN: | 978-1-6654-1876-8 | |
Handle: | http://hdl.handle.net/11572/324660 | |
Citazione: | Role of the bus waveguide in the nonlinear reciprocity breaking in a Taiji microresonator / Franchi, R.; Munoz De Las Heras, Alberto; Biasi, S.; Ghulinyan, M.; Carusotto, I.; Pavesi, L.. - (2021), pp. 1-1. ((Intervento presentato al convegno 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021 tenutosi a deu nel 2021 [10.1109/CLEO/Europe-EQEC52157.2021.9541582]. | |
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