Influence of slow-light feedback on noise properties of VCSEL with a transverse coupled cavity

We present modeling and computer simulation of the intensity noise in VCSELs with a transverse-coupled cavity (TCC). The dynamics and noise TCC-VCSELs are characterized in the three states of operation; namely, continuous wave (CW), pulsing and chaos depending on the coupling ratio between the VCSEL and feedback cavities. The intensity noise is evaluated in terms of the frequency spectrum of the relative intensity noise (RIN) and the carrier to noise ratio (CNR). We show that the VCSEL coupled with a short feedback cavity shows stable CW operations without noticeable increase in CNR compared with the solitary VCSEL.