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Shohei Beppu
Author with expertise in Microwave Photonics and Optical Access Networks
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Publications
0

A Generalized Pairwise Optimization Accelerator Unit For Designing Geometric Shaping 64-QAM

Rachata Maneekut et al.Jan 1, 2021
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An accelerator unit in conjunction with generalized pairwise optimization can obtain optimum geometric shaped 64QAM constellations up to 60% faster. Shaping gain and transmission distance are improved over just GPO constellations in low-to-middle SNR regimes.
3

Real-time 6-Mode 19-Core Fiber Transmission

Shohei Beppu et al.Jan 1, 2023
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We demonstrate the real-time few-mode multicore fiber transmission for the first time. The C- and L-band WDM DP-QPSK signals transmitted over an 11-km 6-mode 19-core fiber were demodulated in real-time by an FPGA-based MIMO DSP.
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A 300-GHz-Band 40-Gb/s 2D Phased-Array CMOS Transmitter with Near-Half-Wave Antenna Pitch

Kyoya Takano et al.Jun 16, 2024
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