Patent ID: 6947632

Claim:
A method of shifting the resonance curves of an optical ring filter using the Kerr effect comprising the steps of: Coupling an incident optical wave (“W inc ”) to one of the optical bus waveguides (the “buses”) of an optical ring filter comprising two buses coupled to a ring waveguide resonator (the “ring”); Setting the value of the wavelength λ mc of W inc to one of the resonant wavelength values of the ring resulting in W mc propagating through the ring to the other bus; Increasing the optical intensity of W mc , causing a shift in the refractive index value of the ring due to the Kerr effect, up to a working point where the resonant intensity of W inc remains large enough to maintain the shift of the value of the refractive index of the ring; Resulting in a shift of the resonance curves of the ring, which are also the resonance curves of the optical ring filter.