Hiroto Kawakami

15 papers C 2Journal 3Unranked 10
YearRankTypeTitle / Venue / Authors
2025 — conf
Long-Haul 2000-Km Single-Mode Fibre Transmission with Net Bitrate of 105.6 Tb/S in S+C+L Band Using Low-Noise Forward-Pumped Distributed Raman Amplification.
ECOC
Fukutaro Hamaoka, Hiroto Kawakami, Kosuke Kimura, Masanori Nakamura, Shimpei Shimizu, Takayuki Kobayashi, Yutaka Miyamoto, Etsushi Yamazaki
2023 C conf
Dither-free Auto Bias Control Technique for In-service Optical IQ modulator Using Reference Pulsed Light.
APCC
Hiroto Kawakami, Yoshiaki Kisaka, Etsushi Yamazaki
2022 — conf
50-Tb/s (1 Tb/s × 50 ch) WDM Transmission on Two 6.25-THz Bands Using Hybrid Inline Repeater of PPLN-based OPAs and Incoherent-forward-pumped DRA.
OFC
Takayuki Kobayashi, Shimpei Shimizu, Masanori Nakamura, Takeshi Umeki, Takushi Kazama, Junji Yoshida, Shigehiro Takasaka, Yasuto Tatamida, Hiroto Kawakami, Fukutaro Hamaoka, Munehiko Nagatani, Hiroshi Yamazaki, Kei Watanabe, Takashi Saida, Yutaka Miyamoto
2022 — conf
Dither-free Bias Condition Monitoring Technique Utilizing Reference Light for In- service Optical IQ modulator.
OECC/PSC
Hiroto Kawakami, Shoichiro Kuwahara, Yoshiaki Kisaka
2021 — conf
Revealing Raman-amplified Power Profile and Raman Gain Spectra with Digital Backpropagation.
OFC
Takeo Sasai, Masanori Nakamura, Takayuki Kobayashi, Hiroto Kawakami, Etsushi Yamazaki, Yoshiaki Kisaka
2020 — conf
Gain Instability in Forward-Pumped Raman Amplifier and Its Suppression Utilizing a Dual-Arm Depolarizer for Pump Light.
ECOC
Hiroto Kawakami, Shoichiro Kuwahara, Yoshiaki Kisaka
2020 J jnl
Proposal and Verification of Auto Calibration Technique for Bias Control Circuit Connecting to Built-In Optical Power Monitor in Imperfect IQ-Modulator.
IEICE Trans. Commun.
Hiroto Kawakami, Shoichiro Kuwahara, Yoshiaki Kisaka
2019 — conf
Full C-Band 3060-km DMD-Unmanaged 3-Mode Transmission with 40.2-Tb/s Capacity using Cyclic Mode Permutation.
OFC
Kohki Shibahara, Takayuki Mizuno, Hiroto Kawakami, Takayuki Kobayashi, Masanori Nakamura, Kota Shikama, Kazuhide Nakajima, Yutaka Miyamoto
2019 — conf
Proposal and verification of auto calibration technique for bias control circuit connecting to imperfect IQ-modulator.
OECC/PSC
Hiroto Kawakami, Shoichiro Kuwahara, Yoshiaki Kisaka
2018 — conf
Novel Optimizing Technique for Linear Optical Mach-Zehnder Modulator and its Experimental Verification Using PAM-8 Signal.
ECOC
Hiroto Kawakami, Hiroshi Yamazaki, Yutaka Miyamoto
2016 J jnl
Optical DP-High Order-QAM Transmission System for High-Speed Short Links Utilizing Copropagating Twin Local Lights.
IEICE Trans. Commun.
Hiroto Kawakami, Takayuki Kobayashi, Yutaka Miyamoto
2015 — conf
Adaptive MIMO equalization for few-mode fiber transmission with various differential mode delays.
ECOC
D. Lee, Kohki Shibahara, Takayuki Kobayashi, Takayuki Mizuno, Hidehiko Takara, Akihide Sano, Hiroto Kawakami, T. Nakagawa, Yutaka Miyamoto
2015 C conf
Optical DP-high order-QAM transmission system for high-speed short links utilizing copropagating twin local lights.
APCC
Hiroto Kawakami, Yutaka Miyamoto, Takayuki Kobayashi
2014 — conf
12-core × 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization.
OFC
Takayuki Mizuno, Takayuki Kobayashi, Hidehiko Takara, Akihide Sano, Hiroto Kawakami, T. Nakagawa, Yutaka Miyamoto, Yoshiteru Abe, T. Goh, Manabu Oguma, Taiji Sakamoto, Yusuke Sasaki, Itaru Ishida, Katsuhiro Takenaga, Shoichiro Matsuo, Kunimasa Saitoh, Toshio Morioka
2005 J jnl
Suppression of the Cross-Gain Modulation in Remotely-Pumped EDF/DRA Hybrid Inline Amplifier Systems with Online OTDR for Gain Monitoring.
IEICE Trans. Commun.
Hiroto Kawakami, Hiroji Masuda, Kenji Sato, Yutaka Miyamoto