Optical crosstalk in monolithically-integrated multiple-wavelengthvertical-cavity laser arrays for multimode WDM local-area networks

This is the authors' abstract. We don't add key points for this paper.

The optical crosstalk between lasers in densely-packed multiple-wavelength vertical-cavity photonic integrated emitter arrays is studied for multimode wavelength-division multiplexing applications. It is found that a significant number of photocarriers are generated by spontaneous emission of an adjacent laser. However, an appropriate prebiasing scheme or device design can reduce the crosstalk to < –20 dB.