3 citations · 5 across the 6 of their papers we have counts for
6 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…
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…
First demonstration of C + L band CDCROADM with simple node configuration using multiband switching devices
Shuto Yamamoto, Hiroki Taniguchi, Yoshiaki Kisaka +7
While ultrahigh-baud-rate optical signals are effective for extending the transmission distance of large capacity signals, they also reduce the number of wavelengths that can be ar…
Physics-oriented learning of nonlinear Schrödinger equation: optical fiber loss and dispersion profile identification
Takeo Sasai, Masanori Nakamura, Etsushi Yamazaki +3
In optical fiber communication, system identification (SI) for the nonlinear Schrödinger equation (NLSE) has long been studied mainly for fiber nonlinearity compensation (NLC). One…
Gravity in Randall-Sundrum two D-brane model
Tetsuya Shiromizu, Keitaro Takahashi, Yoshiaki Himemoto +1
We analyse Randall-Sundrum two D-brane model by linear perturbation and then consider the linearised gravity on the D-brane. The qualitative contribution from the Kaluza-Klein mode…