  Photonic systems based on microring resonators have a fundamental constrain
given by the strict relationship among free spectral range (FSR), total quality
factor (QT) and resonator size, intrinsically making filter spacing, photonic
lifetime and footprint interdependent. Here we break this paradigm employing
CMOS compatible Silicon-on-Insulator (SOI) photonic molecules based on coupled
multiple ring resonators. The resonance wavelengths and their respective
linewidths are controlled by the hybridization of the quasi-orthogonal photonic
states. We demonstrate photonic molecules with doublet and triplet resonances
with spectral spliting only achievable with single rings orders of magnitude
larger in foot print. Besides, these splitting are potentially controllable
based on the coupling (bonds) between resonators. Finally, the spatial
distribution of the hybrid states allows up to sevenfold QT enhancement.
