4 papers
Net 582-Gb/s C-band and 4526-Gb/s O-band IMDD Transmis-sion Using Ultra-broadband InP-DHBT-based Electrical Mixer
Masanori Nakamura, Teruo Jyo, Munehiko Nagatani +11
We successfully transmitted a net 582-Gb/s probabilistically shaped PAM12 C-band signal over 11-km dispersion-shifted fibre and net 4526-Gb/s uniform PAM8 O-band signals ov…
Optical Link Tomography: First Field Trial and 4D Extension
Takeo Sasai, Giacomo Borraccini, Yue-Kai Huang +11
Optical link tomography (OLT) is a rapidly evolving field that allows the multi-span, end-to-end visualization of optical power along fiber links in multiple dimensions from networ…
Iterative Decoder of Channel-polarized Multilevel Coding for Data Center Networks
Takeshi Kakizaki, Masanori Nakamura, Fukutaro Hamaoka +2
Data center networks (DCNs) require a low-cost, low-power optical transceiver to handle increased traffic from generative artificial intelligence, video streaming services, and mor…
Reducing Noise Figure and Nonlinear Penalty in Distributed Raman Amplifier System Utilizing Low-noise Forward Pumping Technique
Hiroto Kawakami, Kohei Saito, Akira Masuda +2
In this paper, we experimentally and theoretically show the improvement in noise characteristics in a distributed Raman amplifier (DRA) system for wavelength division multiplexing…