Reduced chirping in coupled-cavity-semiconductor lasers

Abstract
Chirping in coupled-cavity lasers is studied experimentally and theoretically. Using a conventional and a cleaved-coupled-cavity (C3) laser obtained from the same wafer, we find that the chirp for a C3 laser is typically reduced by a factor of 2. A simple rate equation model is presented to account for reduced chirping. Mode selectivity arising from the cavity coupling is incorporated through wavelength-dependent cavity-loss variations.