Abstract

Directly-modulated quantum dot lasers showed that the highest relaxation frequency decreases monotonically with the p-doping level from 5.3 GHz (undoped wafer), to 4.6 GHz (20 holes/dot), 3.8 GHz (30 holes/dot) and 3.6 GHz (40 holes/dot).

© 2006 Optical Society of America

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