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

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4 Author(s)
Hu, S.Y. ; Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA ; Ko, J. ; Sjolund, O. ; Coldren, L.A.

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

Published in:

Electronics Letters  (Volume:34 ,  Issue: 7 )