In this Letter, we report the theoretical model and the experimental evidence of a mode-splitting cloning effect due to the resonant coupling between modes having different polarizations in weakly birefringent fiber Bragg grating (FBG) ring resonators. This modal coupling depends on the fiber birefringence and the FBG reflectivity. In the ideal case of the absence of birefringence, a single split-mode resonant structure can be observed in the resonator transmission spectrum due to the degeneracy removal of the two counter-propagating modes. In the presence of FBG birefringence, a secondary split doublet resulting in a clone of the initial one is generated. The described effect can be exploited for spectroscopic-sensing applications based on more complex split-mode dynamics.

Mode splitting cloning in birefringent Fiber Bragg Grating ring resonators / Campanella, Carlo Edoardo; Malara, P.; Campanella, C. M.; Giove, Francesco; Dunai, M.; Gagliardi, G.; Passaro, Vittorio. - In: OPTICS LETTERS. - ISSN 0146-9592. - 41:12(2016), pp. 2672-2675. [10.1364/OL.41.002672]

Mode splitting cloning in birefringent Fiber Bragg Grating ring resonators

CAMPANELLA, Carlo Edoardo;GIOVE, Francesco;PASSARO, Vittorio
2016-01-01

Abstract

In this Letter, we report the theoretical model and the experimental evidence of a mode-splitting cloning effect due to the resonant coupling between modes having different polarizations in weakly birefringent fiber Bragg grating (FBG) ring resonators. This modal coupling depends on the fiber birefringence and the FBG reflectivity. In the ideal case of the absence of birefringence, a single split-mode resonant structure can be observed in the resonator transmission spectrum due to the degeneracy removal of the two counter-propagating modes. In the presence of FBG birefringence, a secondary split doublet resulting in a clone of the initial one is generated. The described effect can be exploited for spectroscopic-sensing applications based on more complex split-mode dynamics.
2016
Mode splitting cloning in birefringent Fiber Bragg Grating ring resonators / Campanella, Carlo Edoardo; Malara, P.; Campanella, C. M.; Giove, Francesco; Dunai, M.; Gagliardi, G.; Passaro, Vittorio. - In: OPTICS LETTERS. - ISSN 0146-9592. - 41:12(2016), pp. 2672-2675. [10.1364/OL.41.002672]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/88201
Citazioni
  • Scopus 17
  • ???jsp.display-item.citation.isi??? 16
social impact