| Wide-band inline-amplified WDM transmission using PPLN-based optical parametric amplifier T Kobayashi, S Shimizu, M Nakamura, T Umeki, T Kazama, R Kasahara, ... Journal of Lightwave Technology 39 (3), 787-794, 2021 | 59 | 2021 |
| Over-30-dB gain and 1-dB noise figure phase-sensitive amplification using a pump-combiner-integrated fiber I/O PPLN module T Kazama, T Umeki, S Shimizu, T Kashiwazaki, K Enbutsu, R Kasahara, ... Optics Express 29 (18), 28824-28834, 2021 | 39 | 2021 |
| PPLN-based optical parametric amplification for wideband WDM transmission S Shimizu, T Kobayashi, T Kazama, T Umeki, M Nakamura, K Enbutsu, ... Journal of Lightwave Technology 40 (11), 3374-3384, 2022 | 36 | 2022 |
| S+ C+ L-Band WDM Transmission Using 400-Gb/s Real-Time Transceivers Extended by PPLN-Based Wavelength Converter T Kato, H Muranaka, Y Tanaka, Y Akiyama, T Hoshida, S Shimizu, ... European Conference and Exhibition on Optical Communication, We4D. 4, 2022 | 20 | 2022 |
| Volume holographic spatial mode demultiplexer with a dual-wavelength method S Shimizu, A Okamoto, F Mizukawa, K Ogawa, A Tomita, T Takahata, ... Applied optics 57 (2), 146-153, 2018 | 16 | 2018 |
| 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, ... 2023 Optical Fiber Communications Conference and Exhibition (OFC), 1-3, 2023 | 15 | 2023 |
| 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 T Kobayashi, S Shimizu, M Nakamura, T Umeki, T Kazama, J Yoshida, ... Optical Fiber Communication Conference, Th4A. 8, 2022 | 14 | 2022 |
| Accurate estimation of chromatic dispersion for non-degenerate phase-sensitive amplification S Shimizu, T Kazama, T Kobayashi, T Umeki, K Enbutsu, R Kasahara, ... Journal of Lightwave Technology 39 (1), 24-32, 2021 | 11 | 2021 |
| Wideband inline-amplified WDM transmission using PPLN-based OPA with over-10-thz bandwidth T Kobayashi, S Shimizu, M Nakamura, T Umeki, T Kazama, R Kasahara, ... 2020 Optical Fiber Communications Conference and Exhibition (OFC), 1-3, 2020 | 11 | 2020 |
| Low-Penalty Band-Switchable Multi-Band Optical Cross-Connect Using PPLN-Based Inter-Band Wavelength Converters H Minami, K Hirose, T Fukatani, M Nakagawa, T Seki, S Shimizu, ... Journal of Lightwave Technology 42 (4), 1242-1249, 2024 | 10 | 2024 |
| 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 | 10 | 2023 |
| WDM Transmission in S-Band Using PPLN-Based Wavelength Converters and 400-Gb/s C-Band Real-Time Transceivers T Kato, H Muranaka, Y Tanaka, Y Akiyama, T Hoshida, S Shimizu, ... 2022 27th OptoElectronics and Communications Conference (OECC) and 2022 …, 2022 | 10 | 2022 |
| 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 T Kobayashi, S Shimizu, A Kawai, M Nakamura, M Abe, T Kazama, ... 2024 Optical Fiber Communications Conference and Exhibition (OFC), 1-3, 2024 | 9 | 2024 |
| 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 41 (15), 4922-4932, 2023 | 9 | 2023 |
| Optical phase‐sensitive amplification of higher‐order QAM signal with single Mach–Zehnder amplitude modulator S Shimizu, T Kobayashi, T Kazama, T Umeki, K Enbutsu, R Kasahara, ... Electronics Letters 57 (1), 32-33, 2021 | 7 | 2021 |
| Expansion of Transmission Bandwidth Over 16 THz in S+ C+ L+ U Bands by Combining C-band Transceiver with PPLN-Based Wavelength Converters M Abe, T Kazama, S Shimizu, S Konno, T Kobayashi, Y Miyamoto, T Kato, ... Frontiers in Optics, FM5D. 2, 2023 | 6 | 2023 |
| Spatial-mode demultiplexer using 1550-nm-band angularly multiplexed volume holograms S Shinada, S Shimizu, T Shiba, T Takahata, A Okamoto, N Wada 2018 European Conference on Optical Communication (ECOC), 1-3, 2018 | 6 | 2018 |
| 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 | 5 | 2024 |
| Experimental Demonstration of Cascadable PPLN-Based Inter-Band Wavelength Converters for Band-Switchable Multi-Band Optical Cross-Connect H Minami, K Hirose, T Fukatani, M Nakagawa, T Seki, S Shimizu, ... 2023 Optical Fiber Communications Conference and Exhibition (OFC), 1-3, 2023 | 5 | 2023 |
| Inter-band non-degenerate phase-sensitive amplification scheme for low-noise full C-band transmission S Shimizu, T Kazama, T Kobayashi, T Umeki, K Enbutsu, T Kashiwazaki, ... IEICE Communications Express 11 (1), 64-69, 2022 | 5 | 2022 |
Takayuki KobayashiNTTEmail verificata su ntt.com
