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Akira Kawai
Akira Kawai
hco.ntt.co.jp의 이메일 확인됨
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Complementary vibrational spectroscopy
K Hashimoto, VR Badarla, A Kawai, T Ideguchi
Nature Communications 10 (1), 4411, 2019
1062019
Time-stretch infrared spectroscopy
A Kawai, K Hashimoto, T Dougakiuchi, VR Badarla, T Imamura, ...
Communications Physics 3 (1), 152, 2020
262020
103-ch. 132-Gbaud PS-QAM Signal Inline-amplified Transmission with 14.1-THz Bandwidth Lumped PPLN-based OPAs over 400-km G. 652. D SMF
T Kobayashi, S Shimizu, M Nakamura, T Kazama, M Abe, T Umeki, ...
Optical Fiber Communication Conference, Th4B. 6, 2023
82023
Graphene photodetectors with asymmetric device structures on silicon chips
K Shimomura, K Imai, K Nakagawa, A Kawai, K Hashimoto, T Ideguchi, ...
Carbon Trends 5, 100100, 2021
82021
Compressive dual-comb spectroscopy
A Kawai, T Kageyama, R Horisaki, T Ideguchi
Scientific Reports 11 (1), 1-8, 2021
82021
38.4-Tbps Inline-amplified Transmission Using PPLN-based Optical Parametric Amplifier over 6 THz within L-and U-bands
S Shimizu, T Kobayashi, A Kawai, T Kazama, M Nakamura, K Enbutsu, ...
Optical Fiber Communication Conference, Th3F. 3, 2023
72023
4-Dimensional IQ Characteristic Estimation for Polarization-multiplexed Coherent Transceivers
A Kawai, M Nakamura, T Kobayashi, Y Miyamoto
Optical Fiber Communication Conference, M1H. 2, 2022
62022
Effect of Gain Saturation on Wideband WDM Signal in PPLN-based Optical Parametric Amplifier
S Shimizu, T Kobayashi, T Kazama, M Nakamura, A Kawai, K Enbutsu, ...
Journal of Lightwave Technology, 2023
52023
Digital Four-Dimensional Transceiver IQ Characterization
A Kawai, M Nakamura, T Kobayashi, Y Miyamoto
Journal of Lightwave Technology 41 (5), 1389-1398, 2023
42023
L-and U-Band WDM Transmission Over 6 THz Using PPLN-Based Optical Parametric Amplification and Wavelength-Band Conversion
S Shimizu, T Kobayashi, A Kawai, T Kazama, M Nakamura, K Enbutsu, ...
Journal of Lightwave Technology 42 (5), 1347-1355, 2024
12024
Remote Digital Holographic Characterization of a 75.2 km Few-Mode Fiber without Reference Wave Transfer
A Kawai, S Shimizu, K Shibahara, T Kobayashi, Y Miyamoto
Optical Fiber Communication Conference, M4B. 4, 2023
12023
Partially Frozen MIMO Processing for Fast Polarisation Tracking
A Kawai, M Nakamura, M Takahashi, T Kobayashi, Y Miyamoto
2022 European Conference on Optical Communication (ECOC), 1-4, 2022
12022
Digital Inverse Multiplexing for Transmitters with Symbol Rates over DAC Bandwidth Limit
A Kawai, M Nakamura, T Kobayashi, M Nagatani, H Yamazaki, T Sasai, ...
Journal of Lightwave Technology, 2024
2024
GN-model-based SNR estimation in 15.2-THz bandwidth inline-amplified transmission with 80-km fibre spans
K Kimura, T Kobayashi, S Shimizu, M Nakamura, T Kazama, M Abe, ...
49th European Conference on Optical Communications (ECOC 2023) 2023, 170-173, 2023
2023
Digital inverse multiplexing-based pre-distortion for analog multiplexed broadband transmitter
A Kawai, M Nakamura, T Kobayashi, M Nagatani, H Yamazaki, T Sasai, ...
49th European Conference on Optical Communications (ECOC 2023) 2023, 194-197, 2023
2023
Partial Freezing for MIMO Adaptive Equalizers: Precise Demodulation in Dynamic Environments
A Kawai, M Nakamura, M Takahashi, T Kobayashi, Y Miyamoto
Journal of Lightwave Technology, 2023
2023
Precise Signal Demodulation in Dynamic Environments Using Partially Frozen MIMO Adaptive Equalizers
A Kawai, M Nakamura, M Takahashi, T Kobayashi, Y Miyamoto
IEICE Technical Report; IEICE Tech. Rep. 122 (332), 51-55, 2023
2023
Resolution-aware Smoothing and Backward Filter Convergence for Accurate Optical Performance Monitoring
A Kawai, T Kobayashi, M Nakamura, Y Miyamoto
2022 27th OptoElectronics and Communications Conference (OECC) and 2022 …, 2022
2022
Mid-infrared time-stretch spectroscopy
A Kawai, T Dougakiuchi, VR Badarla, K Hashimoto, T Imamura, ...
CLEO: Science and Innovations, STh3F. 1, 2020
2020
Fourier-transform complementary vibrational spectroscopy
K Hashimoto, VR Badarla, A Kawai, T Ideguchi
JSAP-OSA Joint Symposia, 20p_E214_12, 2019
2019
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학술자료 1–20