Kazutaka Hara

23 papers C 1Journal 6Unranked 16
YearRankTypeTitle / Venue / Authors
2025 — conf
Demonstration of C-band, $50-\text{Gbit}/\mathrm{s}\times 4\lambda$ Single-Sideband-NRZ-Signal Transmission through 40-km SMF using 25G-class APD and Simple Feed-Forward Equalizer for Direct-Detection based 50G- TWDM-PON.
ECOC
Ryo Koma, Jin Uchiyama, Kazutaka Hara, Jun-ichi Kani, Tatsuya Shimada
2025 — conf
Equalizer-free 60-km Bidirectional Transmission of 100-Gbps PAM4 Signals Using Wavelength-range Estimation Method.
OFC
Yasunari Tanaka, Kazutaka Hara, Jun-ichi Kani, Tomoaki Yoshida
2023 J jnl
300-GHz-Band Diplexer for Frequency-Division Multiplexed Wireless Communication.
IEICE Trans. Electron.
Yuma Kawamoto, Toki Yoshioka, Norihiko Shibata, Daniel Headland, Masayuki Fujita, Ryo Koma, Ryo Igarashi, Kazutaka Hara, Jun-ichi Kani, Tadao Nagatsuma
2022 — conf
First Demonstration of 128-Gbit/s 300-GHz-band THz Transmission Using OFC-based Transmitter and Intradyne Receiver.
OECC/PSC
Ryo Igarashi, Keita Toichi, Tsubasa Saijo, Ryo Koma, Kazutaka Hara, Jun-ichi Kani, Tomoaki Yoshida, Tadao Nagatsuma
2021 J jnl
Implementation and Evaluation of Novel Architecture Using Optical Wireless for WLAN Control Plane.
IEEE Access
Ryota Shiina, Shinya Tamaki, Kazutaka Hara, Tomohiro Taniguchi, Shunsuke Saruwatari, Takashi Watanabe
2021 — conf
In-Line Protocol-Independent Control and Management Method in End-to-End Optical Connections via Photonic Gateway.
ECOC
Takuya Kanai, Shin Kaneko, Kazutaka Hara, Junichi Kani, Tomoaki Yoshida
2021 — conf
Novel EA-DFB Mode-Switching Transmitter Supporting Continuous Phase Frequency Shift Keying and Intensity Modulation for All-Photonics Network.
ECOC
Ryo Koma, Kazutaka Hara, Takuya Kanai, Junichi Kani, Tomoaki Yoshida
2021 — conf
Optical Access Network Evolution for Future Super-Broadband Services and 6G Mobile Networks.
ECOC
Jun-ichi Kani, Shin Kaneko, Kazutaka Hara, Tomoaki Yoshida
2021 — conf
Photonic Gateway for Direct and Protocol-Independent End-to-End User Connections.
OFC
Kazuaki Honda, Takuya Kanai, Yasunari Tanaka, Kazutaka Hara, Shin Kaneko, Jun-ichi Kani, Tomoaki Yoshida
2021 — conf
Simultaneous Reception of ASK-based AMCC Signals and QPSK Signals with Single Coherent Receiver.
OFC
Ryo Igarashi, Ryo Koma, Kazutaka Hara, Kazuaki Honda, Junichi Kani, Tomoaki Yoshida
2020 — conf
Bus-Type Optical Access using DRA and Asymmetric Power Splitters for Accommodating Rural Users.
OFC
Ryo Igarashi, Masamichi Fujiwara, Takuya Kanai, Kazutaka Hara, Atsuko Kawakita, Hiro Suzuki, Junichi Kani, Jun Terada
2020 — conf
Deadline-aware Emergency Data Resource Allocation Control for IEEE 802.11ax.
ICCE-TW
David González Filoso, Kazutaka Hara, Shinya Tamaki, Katsuya Minami, Kohji Tsuji, Ryogo Kubo
2020 J jnl
Design for Long-Reach Coexisting PON Considering Subscriber Distribution with Wavelength Selective Asymmetrical Splitters.
IEICE Trans. Commun.
Kazutaka Hara, Atsuko Kawakita, Yasutaka Kimura, Yasuhiro Suzuki, Satoshi Ikeda, Kohji Tsuji
2020 — conf
Proportional-based Resource Allocation Control with QoS Adaptation for IEEE 802.11ax.
ICC
David González Filoso, Ryogo Kubo, Kazutaka Hara, Shinya Tamaki, Katsuya Minami, Kohji Tsuji
2019 — conf
Design for Long-Reach Coexisting PON in Consideration of Area Characteristics with Wavelength Selective Asymmetrical Splitters.
OECC/PSC
Atsuko Kawakita, Kazutaka Hara, Yasutaka Kimura, Kenji Horikawa, Hiroyuki Furukawa, Yasuhiro Suzuki, Satoshi Ikeda
2019 — conf
Flexible Management of WDM-PON Using AMCC for 5G Radio Access Networks.
OECC/PSC
Kazuaki Honda, Hirotaka Nakamura, Kazutaka Hara, Kyosuke Sone, Goji Nakagawa, Yoshio Hirose, Takeshi Hoshida, Jun Terada
2019 — conf
VLC/RF Channel Switching Process Adapting to User Mobility in Coexistence Architecture.
OECC/PSC
Ryota Shiina, Kazutaka Hara, Tomohiro Taniguchi, Toshiro Nakahira, Tomoki Murakami, Satoshi Ikeda
2018 — conf
Wavelength Adjustment of Upstream Signal using AMCC with Power Monitoring for WDM-PON in 5G Mobile Era.
OFC
Kazuaki Honda, Hirotaka Nakamura, Kazutaka Hara, Kyosuke Sone, Goji Nakagawa, Yoshio Hirose, Takeshi Hoshida, Jun Terada, Akihiro Otaka
2015 — conf
Autonomous field mapping and operation with proximity sensing.
SII
Ryo Saegusa, Kazutaka Hara, Yasushi Teshigawara, Yuka Mizushima
2012 J jnl
Effect of forward error correction on spectral sliced WDM/TDMA-PON system.
IEICE Electron. Express
Takashi Mitsui, Kazutaka Hara, Masamichi Fujiwara, Junichi Kani, Masashi Tadokoro, Naoto Yoshimoto
2012 J jnl
Experimental demonstration of RoF-DAS over WDM-PON with bandpass-sampling and optical TDM techniques.
IEICE Electron. Express
Takayoshi Tashiro, Kazutaka Hara, Junichi Kani, Naoto Yoshimoto, Katsumi Iwatsuki, Kenji Miyamoto, Tatsuya Nishiumi, Takeshi Higashino, Katsutoshi Tsukamoto, Shozo Komaki
2011 C conf
Flexible and scalable PON protection architecture using N: M redundancy toward next generation access network.
APCC
Takashi Mitsui, Takeshi Sakamoto, Kazutaka Hara, Naoto Yoshimoto
2011 J jnl
Ultra Fast Response AC-Coupled Burst-Mode Receiver with High Sensitivity and Wide Dynamic Range for 10G-EPON System.
IEICE Trans. Commun.
Kazutaka Hara, Shunji Kimura, Hirotaka Nakamura, Naoto Yoshimoto, Hisaya Hadama