Marco Romagnoli (CNIT) was asked for an invited paper for SPIE, published on 30th January 2018 in SPIE Proceedings Vol. 10560: Metro and Data Center Optical Networks and Short-Reach Links. The title of the paper is “High-bandwidth density optically interconnected terabit/s boards” and was presented by Marco Romagnoli at “Photonics West 2018 conference” on Wednesday 31st January 2018