External cavity laser with adaptive fiber bragg grating (FBG) for minimizing noise related to stimulated brillouin scattering (SBS) in dispersive fiber links

摘要

An optical transmitter including an external cavity laser for generating an optical signal, and transmitting the optical signal over a dispersive fiber optic link. The optical transmitter includes an electronic circuit coupled to the external cavity laser to change spectral characteristics of the external cavity laser through changing physical properties of the external cavity laser by providing a periodic stress or an aperiodic stress to the external cavity laser, thereby reducing an effect of noise in a received signal arising from stimulated Brillouin scattering (SBS) generated in the dispersive fiber optic link.