76 citations · 181 across the 9 of their papers we have counts for
9 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…
Linear Least Squares Estimation of Fiber-Longitudinal Optical Power Profile
Takeo Sasai, Minami Takahashi, Masanori Nakamura +2
This paper presents a linear least squares method for fiber-longitudinal power profile estimation (PPE), which estimates an optical signal power distribution throughout a fiber-opt…
Performance Limit of Fiber-Longitudinal Power Profile Estimation Methods
Takeo Sasai, Etsushi Yamazaki, Yoshiaki Kisaka
This paper presents analytical results on longitudinal power profile estimation (PPE) methods, which visualize signal power evolution in optical fibers at a coherent receiver. The…