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Criterion for improved linearity of 1.3-µm InGaAsP-InP buried-heterostructure lasers

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4 Author(s)
N. Dutta ; AT&T Bell Laboratories, Murray Hill, NJ, USA ; R. Nelson ; P. Wright ; D. Craft

Nonlinearities in tile light-current characteristics of planar-active buried-heterostructure (BH) lasers are associated with higher order mode transitions, spectral broadening and, in some cases, the onset of TM polarized stimulated emission. Measurements and calculations are presented which show that these nonlinearities appear at higher power in devices with reduced active volume. These results provide a practical guide to the fabrication of "kink-free" 1.3-μm InGaAsP buried-heterostructure lasers for use in high-bit-rate fiber communication systems.

Published in:

Journal of Lightwave Technology  (Volume:2 ,  Issue: 2 )