| Fast optical channel recovery in field demonstration of 100-Gbit/s Ethernet over OTN using real-time DSP E Yamazaki, S Yamanaka, Y Kisaka, T Nakagawa, K Murata, E Yoshida, ... Optics Express 19 (14), 13179-13184, 2011 | 204 | 2011 |
| 12-core× 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization T Mizuno, T Kobayashi, H Takara, A Sano, H Kawakami, T Nakagawa, ... Optical Fiber Communication Conference, Th5B. 2, 2014 | 170 | 2014 |
| 409-Tb/s+ 409-Tb/s crosstalk suppressed bidirectional MCF transmission over 450 km using propagation-direction interleaving A Sano, H Takara, T Kobayashi, H Kawakami, H Kishikawa, T Nakagawa, ... Optics Express 21 (14), 16777-16783, 2013 | 120 | 2013 |
| Orbital angular momentum (OAM) multiplexing: An enabler of a new era of wireless communications D Lee, H Sasaki, H Fukumoto, K Hiraga, T Nakagawa IEICE Transactions on Communications 100 (7), 1044-1063, 2017 | 106 | 2017 |
| Signal generating circuit, optical signal transmitting apparatus, signal receiving circuit, method for establishing optical signal synchronization, and optical signal … K Ishihara, T Kobayashi, R Kudo, Y Takatori, M Matsui, M Mizoguchi, ... US Patent 8,929,750, 2015 | 70 | 2015 |
| Chromatic dispersion value calculating apparatus, optical signal receiving apparatus, optical signal transmitting apparatus, and chromatic dispersion value calculation method K Ishihara, T Kobayashi, R Kudo, Y Takatori, M Matsui, M Mizoguchi, ... US Patent 8,787,769, 2014 | 69 | 2014 |
| A miniaturized MMIC analog phase shifter using two quarter-wave-length transmission lines H Hayashi, T Nakagawa, K Araki IEEE transactions on microwave theory and techniques 50 (1), 150-154, 2002 | 69 | 2002 |
| A novel broadband active balun M Kawashima, T Nakagawa, K Araki 33rd European Microwave Conference Proceedings (IEEE Cat. No. 03EX723C) 2 …, 2003 | 63 | 2003 |
| Non-data-aided wide-range frequency offset estimator for QAM optical coherent receivers T Nakagawa, M Matsui, T Kobayashi, K Ishihara, R Kudo, M Mizoguchi, ... 2011 Optical Fiber Communication Conference and Exposition and the National …, 2011 | 56 | 2011 |
| A broadband and miniaturized V-band PHEMT frequency doubler B Piernas, H Hayashi, K Nishikawa, K Kamogawa, T Nakagawa IEEE Microwave and guided wave letters 10 (7), 276-278, 2000 | 56 | 2000 |
| A compact and low-phase-noise Ka-band pHEMT-based VCO B Piernas, K Nishikawa, T Nakagawa, K Araki IEEE transactions on microwave theory and techniques 51 (3), 778-783, 2003 | 53 | 2003 |
| 11× 171 Gb/s PDM 16-QAM transmission over 1440 km with a spectral efficiency of 6.4 b/s/Hz using high-speed DAC S Yamanaka, T Kobayashi, A Sano, H Masuda, E Yoshida, Y Miyamoto, ... 36th European Conference and Exhibition on Optical Communication, 1-3, 2010 | 45 | 2010 |
| High-Q factor three-dimensional inductors B Piernas, K Nishikawa, K Kamogawa, T Nakagawa, K Araki IEEE Transactions on Microwave Theory and Techniques 50 (8), 1942-1949, 2002 | 43 | 2002 |
| Magnetisation measurements in ultra-high magnetic fields produced by a single-turn coil system S Takeyama, K Amaya, T Nakagawa, M Ishizuka, K Nakao, T Sakakibara, ... Journal of Physics E: Scientific Instruments 21 (11), 1025, 1988 | 42 | 1988 |
| Effect of phase noise on RF communication signals T Nakagawa, K Araki Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd …, 2000 | 39 | 2000 |
| A direct digital synthesizer with interpolation circuits T Nakagawa, H Nosaka IEEE Journal of Solid-State Circuits 32 (5), 766-770, 1997 | 39 | 1997 |
| Magnetization measurements in very high pulsed fields produced by a single-turn coil system K Amaya, S Takeyama, T Nakagawa, M Ishizuka, K Nakao, T Sakakibara, ... Physica B: Condensed Matter 155 (1-3), 396-399, 1989 | 35 | 1989 |
| Intermodal group velocity dispersion of few-mode fiber H Kubota, H Takara, T Nakagawa, M Matsui, T Morioka IEICE Electronics Express 7 (20), 1552-1556, 2010 | 32 | 2010 |
| Coherent communication system, communication method, and transmission method K Ishihara, M Mizoguchi, T Murakami, T Kataoka, Y Kisaka, T Nakagawa, ... US Patent 9,621,299, 2017 | 28 | 2017 |
| Fractional-N frequency divider system T Nakagawa, T Tsukahara, M Suzuki, T Kamoto US Patent 5,714,896, 1998 | 28 | 1998 |
