The ring resonator is an integrated optical structure where the light propagates in the form of whispering gallery modes (WGMs) resulting from the total internal reflection of the light along the curved surface. The WGM circulating along the closed loop waveguide realizes an optical feedback mechanism very sensitive to any external perturbation. In this work we report on the interaction between the modes of two beams having the same frequency counterpropagating within the ring. In this case the travelling wave (TW) beams, counterpropagating in the ring, generate a resonant standing wave (SW) that, in turn, couples with a pair of straight (bus) waveguides. This physical mechanism can be used for enhancing the performance of new ring resonator based photonic sensors
Theoretical investigation of two beams optical ring resonators for new generation photonic sensors / Ciminelli, Caterina; Campanella, Carlo Edoardo; Armenise, Mario Nicola. - STAMPA. - (2009). (Intervento presentato al convegno ICTON 2009, 11th International Conference on Transparent Optical Networks tenutosi a Island of São Miguel, Azores, Portugal nel 28 Giugno - 2 Luglio 2009) [10.1109/ICTON.2009.5185248].
Theoretical investigation of two beams optical ring resonators for new generation photonic sensors
CIMINELLI, Caterina;CAMPANELLA, Carlo Edoardo;ARMENISE, Mario Nicola
2009-01-01
Abstract
The ring resonator is an integrated optical structure where the light propagates in the form of whispering gallery modes (WGMs) resulting from the total internal reflection of the light along the curved surface. The WGM circulating along the closed loop waveguide realizes an optical feedback mechanism very sensitive to any external perturbation. In this work we report on the interaction between the modes of two beams having the same frequency counterpropagating within the ring. In this case the travelling wave (TW) beams, counterpropagating in the ring, generate a resonant standing wave (SW) that, in turn, couples with a pair of straight (bus) waveguides. This physical mechanism can be used for enhancing the performance of new ring resonator based photonic sensorsI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
