Hitoshi Wakita

Publication Activity (10 Years)

Years Active: 2015-2024
Publications (10 Years): 29

Top Topics

Signal Detection

Top Venues

Publications

Takayuki Kobayashi, Shimpei Shimizu, Akira Kawai, Masanori Nakamura, Masashi Abe, Takushi Kazama, Takeshi Umeki, Munehiko Nagatani, Kosuke Kimura, Hitoshi Wakita, Yuta Shiratori, Fukutaro Hamaoka, Hiroshi Yamazaki, Hiroyuki Takahashi, Yutaka Miyamoto
C+L+U-Band 14.85-THz WDM Transmission Over 80-km-Span G.654.E Fiber with Hybrid PPLN-OPA/EDFA U-Band Lumped Repeater Using 144-Gbaud PCS-QAM Signals. OFC (2024)
Hitoshi Wakita, Munehiko Nagatani, Yoshihiro Ogiso, Masanori Nakamura, Fukutaro Hamaoka, Yuta Shiratori, Takayuki Kobayashi, Yutaka Miyamoto, Hiroyuki Takahashi
100-GHz-bandwidth InP-based On-board Coherent Tx Front-end enabling 2-Tb/s/λ Optical Transmission. OFC (2024)
Masanori Nakamura, Munehiko Nagatani, Hiroshi Yamazaki, Teruo Jyo, Miwa Mutoh, Yuta Shiratori, Hitoshi Wakita, Hiroki Taniguchi, Shuto Yamamoto, Fukutaro Hamaoka, Takayuki Kobayashi, Hiroyuki Takahashi, Yutaka Miyamoto
AMUX-based Bandwidth Tripler with Time-interleaved Nonlinear Digital Pre-distortion Enabling 216-GBd PS-PAM8 Signal. OFC (2024)
Hitoshi Wakita, Teruo Jyo, Munehiko Nagatani, Hiroyuki Takahashi
Quad-Channel 100-GHz-Bandwidth InP- HBT-Based Linear Amplifier Module for High Symbol Rate Communications. BCICTS (2023)
Teruo Jyo, Munehiko Nagatani, Miwa Mutoh, Yuta Shiratori, Hitoshi Wakita, Hiroyuki Takahashi
A DC-to-150-GHz InP-DHBT Active Combiner Module for Ultra-Broadband Signal Generation. BCICTS (2023)
Masanori Nakamura, Hiroki Taniguchi, Shuto Yamamoto, Fukutaro Hamaoka, Munehiko Nagatani, Teruo Jyo, Miwa Mutoh, Yuta Shiratori, Hitoshi Wakita, Takayuki Kobayashi, Hiroyuki Takahashi, Yutaka Miyamoto
Beyond 200-GBd QAM Signal Detection Based on Trellis-path-limited Sequence Estimation Supporting Soft-decision Forward Error Correction. OFC (2023)
Masanori Nakamura, Takeo Sasai, K. Saito, Fukutaro Hamaoka, Takayuki Kobayashi, Hiroshi Yamazaki, Munehiko Nagatani, Yoshihiro Ogiso, Hitoshi Wakita, Yoshiaki Kisaka, Y. Miyamoto
1.0-Tb/s/λ 3840-km and 1.2-Tb/s/λ 1280-km Transmissions with 168-GBaud PCS-QAM Signals Based on AMUX Integrated Frontend Module. OFC (2022)
Teruo Jyo, Hiroshi Hamada, Munehiko Nagatani, Hitoshi Wakita, Ibrahim Abdo, Miwa Mutoh, Yuta Shiratori, Kenichi Okada, Atsushi Shirane, Hiroyuki Takahashi
A 220-294 GHz Power Amplifier with 10-dBm Psat and 2.2% PAE in 250-nm InP DHBT. BCICTS (2022)
Munehiko Nagatani, Hitoshi Wakita, Teruo Jyo, Tsutomu Takeya, Hiroshi Yamazaki, Yoshihiro Ogiso, Miwa Mutoh, Yuta Shiratori, Minoru Ida, Fukutaro Hamaoka, Masanori Nakamura, Takayuki Kobayashi, Hiroyuki Takahashi, Yutaka Miyamoto
110-GHz-Bandwidth InP-HBT AMUX/ADEMUX Circuits for Beyond-1-Tb/s/ch Digital Coherent Optical Transceivers. CICC (2022)
Fukutaro Hamaoka, Masanori Nakamura, Takayuki Kobayashi, Munehiko Nagatani, Hitoshi Wakita, Hiroshi Yamazaki, Yoshihiro Ogiso, Y. Miyamoto
Experimental Investigation of Influence of SOA-Induced Nonlinear Distortion on High-Symbol-Rate 168-GBaud Signal for Achieving Ultra-Broadband Optical Frontend. OFC (2022)
Teruo Jyo, Munehiko Nagatani, Miwa Mutoh, Yuta Shiratori, Hitoshi Wakita, Hiroyuki Takahashi
An Over 130-GHz-Bandwidth InP-DHBT Baseband Amplifier Module. BCICTS (2021)
Masanori Nakamura, Fukutaro Hamaoka, Takayuki Kobayashi, Hiroshi Yamazaki, Munehiko Nagatani, Yoshihiro Ogiso, Hitoshi Wakita, Yutaka Miyamoto
High Symbol-Rate Signal Optimization for Long-Haul Transmission Systems over 1-Tbps/λ Net-Data Rate. ECOC (2021)
Teruo Jyo, Munehiko Nagatani, Minoru Ida, Miwa Mutoh, Hitoshi Wakita, Naoki Terao, Hideyuki Nosaka
An over 220-GHz-Bandwidth Distributed Active Power Combiner in 250-nm InP DHBT. BCICTS (2020)
Masanori Nakamura, Takayuki Kobayashi, Hiroshi Yamazaki, Fukutaro Hamaoka, Munehiko Nagatani, Hitoshi Wakita, Hideyuki Nosaka, Yutaka Miyamoto
Entropy and Symbol-Rate Optimized 120 GBaud PS-36QAM Signal Transmission over 2400 km at Net-Rate of 800 Gbps/λ. OFC (2020)
Fukutaro Hamaoka, Masahito Nakamura, Munehiko Nagatani, Hitoshi Wakita, Takayuki Kobayashi, Hiroshi Yamazaki, Hideyuki Nosaka, Yutaka Miyamoto
Ultra-wideband Optical Receiver Using Electrical Spectrum Decomposition Technique. ECOC (2020)
Munehiko Nagatani, Hitoshi Wakita, Hiroshi Yamazaki, Yoshihiro Ogiso, Miwa Mutoh, Minoru Ida, Fukutaro Hamaoka, Masanori Nakamura, Takayuki Kobayashi, Yutaka Miyamoto, Hideyuki Nosaka
A Beyond-1-Tb/s Coherent Optical Transmitter Front-End Based on 110-GHz-Bandwidth 2: 1 Analog Multiplexer in 250-nm InP DHBT. IEEE J. Solid State Circuits 55 (9) (2020)
Nikolaos-Panteleimon Diamantopoulos, Hiroshi Yamazaki, Suguru Yamaoka, Munehiko Nagatani, Hidetaka Nishi, Hiromasa Tanobe, Ryo Nakao, Takuro Fujii, Koji Takeda, Takaaki Kakitsuka, Hitoshi Wakita, Minoru Ida, Hideyuki Nosaka, Fumio Koyama, Yutaka Miyamoto, Shinji Matsuo
Net 321.24-Gb/s IMDD Transmission Based on a >100-GHz Bandwidth Directly-Modulated Laser. OFC (2020)
Yoshihiro Ogiso, Josuke Ozaki, Yuta Ueda, Hitoshi Wakita, Munehiko Nagatani, Hiroshi Yamazaki, Masanori Nakamura, Takayuki Kobayashi, Shigeru Kanazawa, Takuro Fujii, Yasuaki Hashizume, Hiromasa Tanobe, Nobuhiro Nunoya, Minoru Ida, Yutaka Miyamoto, Mitsuteru Ishikawa
Ultra-High Bandwidth InP IQ Modulator for Beyond 100-GBd Transmission. OFC (2019)
Munehiko Nagatani, Yutaka Miyamoto, Hideyuki Nosaka, Hitoshi Wakita, Yoshihiro Ogiso, Hiroshi Yamazaki, Miwa Mutoh, Minoru Ida, Fukutaro Hamaoka, Masanori Nakamura, Takayuki Kobayashi
A 110-GHz-Bandwidth 2: 1 AMUX-Driver using 250-nm InP DHBTs for Beyond-1-Tb/s/carrier Optical Transmission Systems. BCICTS (2019)
Toshiki Kishi, Hitoshi Wakita, Kota Shikama, Munehiko Nagatani, Shigeru Kanazawa, Takuro Fujii, Hidetaka Nishi, Hiroshi Ishikawa, Yuko Kawajiri, Atsushi Aratake, Hideyuki Nosaka, Hiroshi Fukuda, Shinji Matsuo
A 25-Gbps × 4 ch, Low-Power Compact Wire-Bond-Free 3D-Stacked Transmitter Module with 1.3-μm LD-Array-on-Si for On-Board Optics. OFC (2019)
Fukutaro Hamaoka, Masanori Nakamura, Munehiko Nagatani, Takayuki Kobayashi, Asuka Matsushita, Hitoshi Wakita, Hiroshi Yamazaki, Hideyuki Nosaka, Yutaka Miyamoto
120-GBaud 32QAM Signal Generation using Ultra-Broadband Electrical Bandwidth Doubler. OFC (2019)
Masanori Nakamura, Fukutaro Hamaoka, Munehiko Nagatani, Hiroshi Yamazaki, Takayuki Kobayashi, Asuka Matsushita, Seiji Okamoto, Hitoshi Wakita, Hideyuki Nosaka, Yutaka Miyamoto
1.04 Tbps/Carrier Probabilistically Shaped PDM-64QAM WDM Transmission Over 240 km Based on Electrical Spectrum Synthesis. OFC (2019)
Takayuki Kobayashi, Masanori Nakamura, Fukutaro Hamaoka, Munehiko Nagatani, Hitoshi Wakita, Hiroshi Yamazaki, Takeshi Umeki, Hideyuki Nosaka, Yutaka Miyamoto
35-Tb/s C-Band Transmission Over 800 km Employing 1-Tb/s PS-64QAM Signals Enhanced by Complex 8 × 2 MIMO Equalizer. OFC (2019)
Hiroshi Yamazaki, Munehiko Nagatani, Hitoshi Wakita, Masanori Nakamura, Fukutaro Hamaoka, Takayuki Kobayashi, Yoshihiro Ogiso, Minoru Ida, Toshikazu Hashimoto, Hideyuki Nosaka, Yutaka Miyamoto
Digital-Preprocessed Analog-Multiplexed DAC for High-Speed Optical Communications. OECC/PSC (2019)
Masanori Nakamura, Fukutaro Hamaoka, Munehiko Nagatani, Yoshihiro Ogiso, Hitoshi Wakita, Hiroshi Yamazaki, Takayuki Kobayashi, Minoru Ida, Hideyuki Nosaka, Yutaka Miyamoto
192-Gbaud Signal Generation using Ultra-Broadband Optical Frontend Module Integrated with Bandwidth Multiplexing Function. OFC (2019)
Hiroshi Yamazaki, Munehiko Nagatani, Hitoshi Wakita, Yoshihiro Ogiso, Masanori Nakamura, Minoru Ida, Toshikazu Hashimoto, Hideyuki Nosaka, Yutaka Miyamoto
Transmission of 400-Gbps Discrete Multi-Tone Signal Using >100-GHz-Bandwidth Analog Multiplexer and InP Mach-Zehnder Modulator. ECOC (2018)
Yoshihiro Ogiso, Hitoshi Wakita, Munehiko Nagatani, Hiroshi Yamazaki, Masanori Nakamura, Takayuki Kobayashi, Johsuke Ozaki, Yuta Ueda, S. Nakano, Shigeru Kanazawa, T. Fujii, Yasuaki Hashizume, Hiromasa Tanobe, Nobuhiro Nunoya, Minoru Ida, Yutaka Miyamoto, Nobuhiro Kikuchi
Ultra-High Bandwidth InP IQ Modulator co-assembled with Driver IC for Beyond 100-GBd CDM. OFC (2018)
Takayuki Kobayashi, Takeshi Umeki, Ryoichi Kasahara, Hiroshi Yamazaki, Munehiko Nagatani, Hitoshi Wakita, Hirokazu Takenouchi, Yutaka Miyamoto
96-Gbaud PDM-8QAM Single Channel Transmission over 9, 600 km by Nonlinear Tolerance Enhancement using PPLN-based Optical Phase Conjugation. OFC (2018)
Munehiko Nagatani, Hitoshi Wakita, Teruo Jyo, Miwa Mutoh, Minoru Ida, Sorin P. Voinigescu, Hideyuki Nosaka
A 256-Gbps PAM-4 Signal Generator IC in 0.25-µm InP DHBT Technology. BCICTS (2018)
Hitoshi Wakita, Munehiko Nagatani, Shigeru Kanazawa, Toshihiro Itoh, Eiichi Yamada, Hiroyuki Ishii, Hideyuki Nosaka
28 Gbaud 16-QAM modulation with compact driver module for InP MZM. IEICE Electron. Express 12 (20) (2015)