Document Type and Number:
Japanese Patent JPWO2022079814
Kind Code:
A1
Abstract:
In the wavelength variable light source and its control method of the present disclosure, intensity of oscillation light in a plurality of non-operating ports of MMI is utilized in consideration of filter characteristics between an operating port and a non-operating port that does not directly contribute to oscillation operation. By controlling the RTF laser so that the light intensity of the wavelength of the oscillation light in the monitored non-operation port is in a desired relationship, a wavelength variable light source reflecting SMSR characteristics is realized. The SMSR can be effectively controlled only by adding a photodetector to a non-operation port which has not been considered by the RTF laser of the prior art. In the wavelength variable light source, the inspection of the SMSR and the SMSR monitor during actual operation can be realized by a simple mechanism.
Application Number:
JP2022556735A
Publication Date:
April 21, 2022
Filing Date:
October 13, 2020
Export Citation:
