Abstract

Existing coupled laser theories have been extended to analyze the case of two coupled lasers supporting two modes in each cavity. Sets of four single-mode and eight two-mode equations describing the amplitudes and phases of the modes oscillating in each cavity have been solved numerically to evaluate the operating characteristics of the coupled laser system. Locking ranges were computed for both single- and two-mode coupled laser systems. A number of oddities in behavior have been found including a mutually reinforced hole-burning minimum in intensity (whose existence was verified using a single, two-mode He-Ne laser) and a phase dependent shift of the laser frequency from the bare cavity frequency.

© 1989 Optical Society of America