Multi-Octave Modified Uni-Travelling Carrier Photodiode Packaging Exploiting a 100 - 500 GHz Waveguide Transition. - Shuya Iwamatsu; Himanshu Gohil; Marcel Grzeslo; Hui Wang; Nick Brewster; Mark Merritt; José Luis Fernández Estévez; Jessica Strah; Tom Neerfeld; Jonas Tebart; Sumer Makhlouf; Daniel Headland; et al. (ECOC, 2025)