Broadband optical packet generation by multiplexing signals using a bias tee

This paper presents a broadband optical packet generation method by multiplexing low- and high-frequency signals using bias tee. The cut-off frequency of the tee, fc is optimized in terms eye-opening ratio for trains with different guard times intervals. As result, optimal condition observed to be fGT < f1, should closer fGT. (where f1 high-pass low-frequency amplifier). We implemented tee based on simulation results confirmed effectiveness this method.