Abstract
We report on the high frequency modulation of Terahertz (THz) quantum cascade lasers (QCLs). By resonantly enhancing the frequency response of the RF biasing circuit we show that 4mm and 1.5mm-long metal-metal waveguide 2.3THz QCLs, can be modulated up to 21 and 24GHz respectively.
© 2009 Optical Society of America
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