Abstract

A general model for coupled lasers is established. The coupled system is characterized by two parameters: the self-feedback, S, and the mutual coupling, M. The coupled system is analyzed as one composite system and the eigenvalues of the system are calculated. We show that the frequency locking range, δV_R, is given by where L is the average length of the individual resonators. M and S are calculated for mode-matched Fabry-Perot type resonators and for adjoint coupled unstable resonators. Diffraction effects are taken into account and frequency locking range is estimated for a strip unstable resonator and a three-dimensional unstable resonator.

© 1990 Optical Society of America