Patent ID: 7565045
Filing Date: 2009-07-21
Classification: H01S

Abstract:
1. A tuning light source apparatus comprising: an optical resonator filter including a multiple-optical resonator in which a plurality of optical resonators of different light path lengths is connected, the optical resonators comprising: a light supply device for supplying light to the optical resonator filter at the light input/output side of the optical resonator filter; a tuning device for changing a resonance wavelength of the multiple-optical resonator; a first light detection device for detecting an oscillation light output to outside from an output port of the optical resonator filter, the output port located at the light input/output side of the optical resonator filter; a plurality of additional light detection devices for detecting light deviated from corresponding resonator paths of the optical resonator filter output from corresponding through ports of the optical resonator filter, the additional light detection devices comprising: a control unit for controlling the operation of the tuning device based on the lights detected by the first and the additional light detection devices.