ANALOG CHARACTERISTICS OF ELECTROABSORPTION MODULATOR FOR RF/OPTIC CONVERSION; RF GAIN AND IMD3

摘要

We design and fabricate a traveling-wave electroabsorption modulator for RF/optic conversion. The RF gain is measured with a simple RF/optic link. It is related to the optical transfer curve. The input optical power causes the change of the transfer curve so that the RF gain varies accordingly. The RF/optic conversion gain shows a close relationship with the slope efficiency of transfer curve. Linearity is also one of the important characteristics for analog applications. We evaluate the linearity of the module from the 3rd-order inter modulation distortion (IMD3).