Abstract

Recent experiments[1] have shown that the five regimes of feedback[2] commonly used to characterise the dynamical performance of laser diodes subject to optical feedback poorly describe the behaviour for short external cavity laser diodes. Experimental investigations have shown that the output power of the lase can be dramatically affected by sub-wavelength variation in the external cavity length. A theoretical investigation using the Lang-Kobayashi model has shown excellent agreement with experimental results, and has thus elucidated the mechanisms that induce the observed experimental behaviour.

© 2000 IEEE