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1.3-µm BH laser performance at microwave frequencies

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4 Author(s)
Hakki, Basil W. ; AT&T Bell Telephone Labs., Allentown, PA, USA ; Bosch, F. ; Lumish, S. ; Dietrich, N.R.

We have studied the performance of In1-xGaxAsyP1-yburied heterostructure (BH) 1.3-μm lasers in the microwave range. This study consisted of small-signal, large-signal, and digital pseudo-random word evaluation of these lasers. The small-signal study pointed out the impact of the oxide stripe capacitance on the laser response at microwave frequencies. The large-signal study uncovered basic laser non-linearities that affect the temporal response, spectral broadening, and wavelength chirp. Finally, digital pseudo-random word tests performed at 1.7 Gbit/s indicated that in spite of these inherent laser nonlinearities, the 1.3-μm BH lasers performed well enough to be considered as promising sources for gigabit optical communication systems.

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Lightwave Technology, Journal of  (Volume:3 ,  Issue: 6 )