Patent ID: 6975796
Filing Date: 2005-12-13
Classification: G02B,H01S

Abstract:
1. A modulation frequency tunable optical oscillator, comprising: a wavelength combiner for receiving a pumping light beam having a predetermined wavelength; a loop mirror connected to one side of the wavelength combiner; an amplifying optical fiber connected to the other side of the wavelength combiner; a coupler connected to the amplifying optical fiber for an output light beam; and a pair of optical fiber grating mirrors connected to the coupler, wherein a light beam outputted from the amplifying optical fiber is reflected in the loop mirror with a different reflectance depending on each wavelength, passes through the amplifying optical fiber, and then is inputted to the optical fiber grating mirrors, whereby the optical fiber grating mirrors constitute a dual laser mode resonator in such a way that the light beams having different wavelength bands are reflected in the optical fiber grating mirrors, respectively.