Stability analysis for laser diodes with short external cavities

Abstract

Results of a numerical analysis of the stability of external cavity lasers with short external cavities are presented. If the external cavity is shorter than about 5 mm (air equivalent), the laser remains stable for any feedback from that cavity without any coherence collapse. The results can be considered also as guidelines for the design of laser diodes with integrated passive cavities.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>