Abstract

Deformed microcavities (also known as asymmetric resonant cavities) have been used to make novel lasers [1]. Their high Q factor together with directional output due to the deformation has made them interesting for new compact lasers. Here, instead, we would like to use these devices to provide distributed optical feedback. Such feedback has the potential to suppress the Time Delay Signature (TDS), an unwanted feature for chaotic lasers [2]. Indeed, here we show that feedback from a deformed microcavity can suppress the TDS better than a normal mirror. Due to the deformation, we can couple light in and out and the feedback is more distributed than the response of a normal mirror. Thus, we anticipate that this complex feedback could lead to novel compact chaotic lasers on Photonic Integrated Circuits (PICs).

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