High speed performance of 2-D vertical-cavity laser diode arrays
- 1 September 1994
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 6 (9), 1056-1058
- https://doi.org/10.1109/68.324667
Abstract
We have fabricated and tested 10/spl times/10 independently addressable vertical-cavity surface-emitting laser diode arrays. Arrays with 55 /spl mu/m active diameter devices show an average threshold current density of 590 A/cm/sup 2/ and an excellent homogeneity of the output characteristics over the full array size with maximum CW output powers of 12 mW. Broad area laser diodes with active diameters of 75 /spl mu/m reach output powers of 18 mW for CW operation and 180 mW under pulsed conditions. Small-signal modulation bandwidths are beyond 10 and 8 GHz for the 55 and 75 /spl mu/m devices, respectively.Keywords
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