Integrated monitor device

An optical monitor device comprising a light guiding structure carrying a multi-channel input light signal, an optical resonator located spatially adjacent to the guiding structure and optically coupled thereto within a first interaction region, and an optical detector accommodated so as to be optically coupled to the resonator within a second interaction region, refractive indices of the guiding structure, the resonator and the detector and dimensions of the interaction region being such that a coupling coefficient k1 of coupling of light from the guiding structure to the optical resonator being smaller then a coupling coefficient k2 of coupling of light from the resonator to the optical detector.

An optical monitor device comprising a light guiding structure carrying an input light signal, an optical resonator spatially adjacent to the guiding structure and optically coupled thereto within a first interaction region, and an optical detector optically coupled to the resonator through a detector waveguide within a second interaction region, the device being configured such that a coupling coefficient k1 of coupling of light from the guiding structure to the optical resonator being smaller than a coupling coefficient k2 of coupling of light from the resonator to the detector waveguide.

An optical monitor device comprising a light guiding structure carrying an input light signal, an optical coupler associated with a first region of the guiding structure to transfer a portion of the input light to a first detector, an optical resonator spatially adjacent to the guiding structure and optically coupled thereto within a second interaction region downstream of said first region with respect to the direction of the input light propagation through the guiding structure, and an optical detector optically coupled to the resonator structure within a third interaction region, the device being configured such that a coupling coefficient k1 of coupling of light from the guiding structure to the optical resonator is smaller than a coupling coefficient k2 of coupling of light from the resonator to the optical detector.

An optical monitor device comprising a light guiding structure carrying an input light signal, a first optical resonator spatially adjacent to the guiding structure and optically coupled thereto within a first interaction region, a first optical detector optically coupled to the first resonator within an interaction region, a second optical resonator spatially adjacent to the guiding structure and optically coupled thereto within a second interaction region, and a second-optical detector optically coupled to the second resonator within an interaction region, the resonators being configured such that a center frequency of the first resonator is set apart from a center frequency of the second resonator, refractive indices of the guiding structure, the resonators and the detectors and dimensions of the interaction regions being such that a coupling coefficient of coupling of light from the guiding structure to the first optical resonator is smaller than a coupling coefficient of coupling of light from the first resonator to the first optical detector, and a coupling coefficient of coupling of light from the guiding structure to the second optical resonator is smaller than a coupling coefficient of coupling of light from the second resonator to the second optical detector.

A method for monitoring light propagation through a guiding structure, the method comprising:

• optically coupling a resonator to said guiding structure within a first interaction region between them, and optically coupling a detector to said resonator within a second interaction region between them, to thereby enable exacting a predetermined light portion from light propagating in the guiding structure and allowing its propagation through the resonator to the detector;
• providing a coupling coefficient of coupling of light between the guiding structure and the resonator smaller than a coupling coefficient of coupling of light between the resonator structure and the detector.