Transmission characteristics of a Fabry-Perot etalon-microtoroid resonator coupled system.
The transmission spectra of a Fabry-Perot etalon coupled to a microtoroid resonator are studied theoretically and experimentally. The resonance line shapes depend strongly on the resonance wavelength detuning and coupling strength between the two resonators. A wide variety of line shapes, ranging from a single to triple peaks, symmetric to asymmetric Fano-like peaks, and notches were predicted and observed experimentally. The capability to modify the spectral line shapes by tuning the coupling between or losses of two resonators may find applications in optical filtering, switching, sensing, and dispersion engineering.
Department of Applied Physics, California Institute of Technology, Pasadena, California 91125, USA.
Wei
W
Liang
Lan
L
Yang
Joyce K S
JK
Poon
Yanyi
Y
Huang
Kerry J
KJ
Vahala
Amnon
A
Yariv