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• 4 ×4 InAlGaAs/InAlAs optical-switch fabric by cascading mach-zehnder interferometer-type optical switches with low-power and low-polarization- dependent operation

  Ueda, Y., Koyama, N., Kambayashi, K., Fujimoto, S., Utaka, K., Shiota, T. & Kitatani, T., 2012, In: IEEE Photonics Technology Letters. 24, 9, p. 757-759 3 p., 6151035.

  Research output: Contribution to journal › Article › peer-review
  12 Citations (Scopus)

• 4 × 4-matrix transformation for systems with spontaneous symmetry breakdown and self-consistent renormalization in nonequilibrium Thermo Field Dynamics

  Oyama, T., Nakamura, Y. & Yamanaka, Y., 2022 Apr 1, In: Physica A: Statistical Mechanics and its Applications. 591, 126732.

  Research output: Contribution to journal › Article › peer-review

  Open Access

• 4×56-Gbaud PAM-4 SDM transmission over 5.9-km 125-µm-cladding MCF using III-V-on-Si DMLS

  Diamantopoulos, N. P., Nishi, H., Fujii, T., Shikama, K., Matsui, T., Takeda, K., Kakitsuka, T., Nakajima, K. & Matsuo, S., 2020, Optical Fiber Communication Conference, OFC 2020. OSA - The Optical Society, (Optics InfoBase Conference Papers; vol. Part F174-OFC 2020).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

• 4×56-GBaud PAM-4 SDM Transmission over 5.9-km 125-μm-Cladding MCF using III-V-on-Si DMLs

  Diamantopoulos, N. P. P., Nishi, H., Fujii, T., Shikama, K., Matsui, T., Takeda, K., Kakitsuka, T., Nakajima, K. & Matsuo, S., 2020 Mar, 2020 Optical Fiber Communications Conference and Exhibition, OFC 2020 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 9083574. (2020 Optical Fiber Communications Conference and Exhibition, OFC 2020 - Proceedings).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
  1 Citation (Scopus)

• 400-Gb/s DMT-SDM transmission based on membrane DML-array-on-silicon

  Diamantopoulos, N. P., Shikama, K., Nishi, H., Fujii, T., Kishi, T., Takeda, K., Abe, Y., Matsui, T., Kakitsuka, T., Fukuda, H., Nakajima, K. & Matsuo, S., 2019 Apr 15, In: Journal of Lightwave Technology. 37, 8, p. 1805-1812 8 p., 8570776.

  Research output: Contribution to journal › Article › peer-review
  13 Citations (Scopus)

• 400-Gb/s operation of flip-chip interconnection EADFB laser array module

  Kanazawa, S., Fujisawa, T., Takahata, K., Sanjoh, H., Iga, R., Ueda, Y., Kobayashi, W. & Ishii, H., 2015 Mar 13, Optical Fiber Communication Conference, OFC 2015. OSA - The Optical Society, (Optical Fiber Communication Conference, OFC 2015).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
  16 Citations (Scopus)

• 400Gbit/s (20 × 20Gbit/s) dense WDM soliton-based RZ signal transmission using dispersion flattened fibre

  Tanaka, K., Morita, I., Suzuki, M., Edagawa, N. & Yamamoto, S., 1998 Nov 12, In: Electronics Letters. 34, 23, p. 2257-2258 2 p.

  Research output: Contribution to journal › Article › peer-review
  7 Citations (Scopus)

• 400 Gbit/s (20×20 Gbit/s) dense WDM transmission using soliton-based RZ signals

  Tanaka, K., Morita, I., Suzuki, M., Edagawa, N. & Yamamoto, S., 1998, p. 85-86. 2 p.

  Research output: Contribution to conference › Paper › peer-review
  3 Citations (Scopus)

• 400-Gbit/s optical OFDM transmission over 80 km in 50-GHz frequency grid

  Takahashi, H., Takeshima, K., Morita, I. & Tanaka, H., 2010, ECOC 2010 - 36th European Conference and Exhibition on Optical Communication, Proceedings. 5621118. (European Conference on Optical Communication, ECOC; vol. 1-2).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
  32 Citations (Scopus)

• 400-Gbps Space Division Multiplexing Optical Wireless Communication Using Two-Dimensional Photodetector Array

  Umezawa, T., Sakamoto, T., Kanno, A., Nakajima, S., Matsumoto, A., Yamamoto, N. & Kawanishi, T., 2018 Nov 14, 2018 European Conference on Optical Communication, ECOC 2018. Institute of Electrical and Electronics Engineers Inc., 8535433. (European Conference on Optical Communication, ECOC; vol. 2018-September).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
  3 Citations (Scopus)

• -400 mA mm^-1Drain Current Density Normally-Off Polycrystalline Diamond MOSFETs

  Zhu, X., Shao, S., Chang, Y., Zhang, R., Chung, S. Y. Y., Fu, Y., Bi, T., Huang, Y., An, K., Liu, J., Li, C. & Kawarada, H., 2022 May 1, In: IEEE Electron Device Letters. 43, 5, p. 789-792 4 p.

  Research output: Contribution to journal › Article › peer-review

• 402.7-Tb/s MDM-WDM Transmission over Weakly Coupled 10-Mode Fiber Using Rate-Adaptive PS-16QAM Signals

  Beppu, S., Soma, D., Sumita, S., Wakayama, Y., Takahashi, H., Tsuritani, T., Morita, I. & Suzuki, M., 2020 May 15, In: Journal of Lightwave Technology. 38, 10, p. 2834-2840 7 p., 9027880.

  Research output: Contribution to journal › Article › peer-review
  12 Citations (Scopus)

• 402.7-Tb/s weakly-coupled 10-mode-multiplexed transmission using rate-adaptive PS PDM-16QAM WDM signals

  Soma, D., Beppu, S., Sumita, S., Wakayama, Y., Tsuritani, T., Morita, I. & Suzuki, M., 2019, IET Conference Publications. CP765 ed. Institution of Engineering and Technology, (IET Conference Publications; vol. 2019, no. CP765).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

• 40-Gb/s 32-bit optical packet compressor-decompressor based on an optoelectronic memory

  Takenouchi, H., Takahashi, R., Takahata, K., Nakahara, T. & Suzuki, H., 2004 Jul, In: IEEE Photonics Technology Letters. 16, 7, p. 1751-1753 3 p.

  Research output: Contribution to journal › Article › peer-review
  9 Citations (Scopus)

• 40Gb/s DP-NRZ-QPSK signal generation using a dual-polarization quad-parallel Mach-Zehnder modulator

  Sudo, M., Sakamoto, T., Morohashi, I., Kanno, A., Chiba, A., Kawanishi, T. & Ichikawa, J., 2010 Nov 29, Technical Digest - 15th OptoElectronics and Communications Conference, OECC2010. p. 456-457 2 p. 5588543. (Technical Digest - 15th OptoElectronics and Communications Conference, OECC2010).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
  2 Citations (Scopus)

• 40 Gb/s single-channel soliton transmission over transoceanic distances by reducing Gordon-Haus timing jitter and soliton-soliton interaction

  Morita, I., Tanaka, K., Edagawa, N. & Suzuki, M., 1999 Dec, In: Journal of Lightwave Technology. 17, 12, p. 2506-2511 6 p.

  Research output: Contribution to journal › Article › peer-review
  44 Citations (Scopus)

• 40 Gb/s W-band (75-110 GHz) 16-QAM radio-over-fiber signal generation and its wireless transmission

  Kanno, A., Inagaki, K., Morohashi, I., Sakamoto, T., Kuri, T., Hosako, I., Kawanishi, T., Yoshida, Y. & Kitayama, K. I., 2011 Dec 1, European Conference and Exposition on Optical Communications, ECOC 2011. (Optics InfoBase Conference Papers).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

• 40 Gb/s W-band (75-110 GHz) 16-QAM radio-over-fiber signal generation and its wireless transmission

  Kanno, A., Inagaki, K., Morohashi, I., Sakamoto, T., Kuri, T., Hosako, I., Kawanishi, T., Yoshida, Y. & Kitayama, K. I., 2011 Nov 30, ECOC 2011 - 37th European Conference and Exhibition on Optical Communication, Final Program. 6066072. (European Conference on Optical Communication, ECOC).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
  46 Citations (Scopus)

• 40 Gb/s W-band (75-110 GHz) 16-QAM radio-over-fiber signal generation and its wireless transmission

  Kanno, A., Inagaki, K., Morohashi, I., Sakamoto, T., Kuri, T., Hosako, I., Kawanishi, T., Yoshida, Y. & Kitayama, K. I., 2011 Dec 12, In: Optics Express. 19, 26, p. B56-B63

  Research output: Contribution to journal › Article › peer-review
  199 Citations (Scopus)

• 40 Gbit/s × 25WDM 306km unrepeatered transmission using 175 μm²-Aeff fibre

  Tanaka, K., Sakata, H., Miyakawa, T., Morita, I., Imai, K. & Edagawa, N., 2003 Jun, In: IEE Proceedings: Optoelectronics. 150, 3, p. 224-228 5 p.

  Research output: Contribution to journal › Article › peer-review

• 40 Gbit/s × 25 WDM 306 km unrepeatered transmission using 175 μm²-Aeff fibre

  Tanaka, K., Sakata, H., Miyakawa, T., Morita, I., Imai, K. & Edagawa, N., 2001 Oct 25, In: Electronics Letters. 37, 22, p. 1354-1356 3 p.

  Research output: Contribution to journal › Article › peer-review
  4 Citations (Scopus)

• 40 Gbit/s × 25 WDM 306 km unrepeatered transmission using 175 μm²-Aeff fibre

  Tanaka, K., Sakata, H., Miyakawa, T., Morita, I., Imai, K. & Edagawa, N., 2001, p. 62-63. 2 p.

  Research output: Contribution to conference › Paper › peer-review
  2 Citations (Scopus)

• 40 Gbit/s × 25 WDM unrepeatered transmission over 362 km

  Miyakawa, T., Morita, I. & Edagawa, N., 2002 Jul 4, In: Electronics Letters. 38, 14, p. 726-727 2 p.

  Research output: Contribution to journal › Article › peer-review
  8 Citations (Scopus)

• 40-Gbit/s 16-bit burst optical packet generator based on photonic parallel-to-serial conversion

  Takenouchi, H., Takahata, K., Nakahara, T., Takahashi, R. & Suzuki, H., 2004 May, In: IEICE Transactions on Electronics. E87-C, 5, p. 825-827 3 p.

  Research output: Contribution to journal › Article › peer-review
  2 Citations (Scopus)

• 40-Gbit/s direct modulation of membrane buried heterostructure DFB laser on SiO2/Si substrate

  Matsuo, S., Fujii, T., Hasebe, K., Takeda, K., Sato, T. & Kakitsuka, T., 2014 Dec 16, Conference Digest - IEEE International Semiconductor Laser Conference. Institute of Electrical and Electronics Engineers Inc., p. 30-31 2 p. 6987435. (Conference Digest - IEEE International Semiconductor Laser Conference).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
  5 Citations (Scopus)

• 40-Gbit/s photonic random access memory for photonic packet-switched networks

  Takahashi, R., Nakahara, T., Takahata, K., Takenouchi, H., Yasui, T., Kondo, N. & Suzuki, H., 2004, In: Proceedings of SPIE - The International Society for Optical Engineering. 5356, p. 130-141 12 p.

  Research output: Contribution to journal › Conference article › peer-review
  6 Citations (Scopus)

• 40 Gbit/s single-channel soliton transmission over 10200 km without active inline transmission control

  Morita, I., Tanaka, K., Edagawa, N. & Suzuki, M., 1998, p. [d]2p.

  Research output: Contribution to conference › Paper › peer-review
  12 Citations (Scopus)

• 40Gbit/s single-channel soliton transmission over 8600km using periodic dispersion compensation

  Morita, I., Tanaka, K., Edagawa, N., Yamamoto, S. & Suzuki, M., 1998 Sep 17, In: Electronics Letters. 34, 19, p. 1863-1865 3 p.

  Research output: Contribution to journal › Article › peer-review
  17 Citations (Scopus)

• 40 Gbit/s single-channel soliton transmission using periodic dispersion compensation

  Morita, I., 1998, In: IEICE Transactions on Electronics. E81-C, 8, p. 1309-1314 6 p.

  Research output: Contribution to journal › Article › peer-review

• 40 Gbit/s single-channel transmission over standard singlemode fibre using distributed Raman amplification

  Morita, I., Tanaka, K., Edagawa, N. & Suzuki, M., 2000 Dec 7, In: Electronics Letters. 36, 25, p. 2084-2085 2 p.

  Research output: Contribution to journal › Article › peer-review
  5 Citations (Scopus)

• 40Gbit/s versatile LiNbO3 lightwave modulator

  Kawanishi, T., Higuma, K., Fujita, T., Mori, S., Oikawa, S., Ichikawa, J., Sakamoto, T. & Izutsu, M., 2005, IET Conference Publications. CP502 ed. Institution of Engineering and Technology, Vol. 2005. p. 855-856 2 p. 20050754

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
  6 Citations (Scopus)

• 40-Gbit/s WGPD/HEMT monolithic photoreceiver with output voltage of 1 Vp-p

  Takahata, K., Muramoto, Y., Fukano, H. & Matsuoka, Y., 1998, p. 1657-1659. 3 p.

  Research output: Contribution to conference › Paper › peer-review
  1 Citation (Scopus)

• 40-km SSMF transmission of 56/64-Gb/s PAM-4 signals using 1.3-μm directly modulated laser and PIN photodiode

  Diamantopoulos, N. P., Kobayashi, W., Nishi, H., Takeda, K., Kakitsuka, T. & Matsuo, S., 2017, Advanced Photonics, PS 2017. OSA - The Optical Society, (Optics InfoBase Conference Papers; vol. Part F57-PS 2017).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

• 40 years experiences on research of biomedical engineering: The continuity of the BME research at Waseda University

  Tsuchiya, K., Umezu, M. & Shiraishi, Y., 2002, Proceedings of Asian Simulation Conference; System Simulation and Scientific Computing (Shanghai). Zongij, C., Minrui, F., Guosen, H., Xiaoyuan, P. & Guangleng, X. (eds.). p. 1027-1031 5 p. (Proceedings of Asian Simulation Conference; System Simulation and Scientific Computing (Shanghai); vol. 2).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

• 4-2 Visual computing 4-2-1 IIEEJ SIG on visual computing

  Morishima, S., 2019, In: Journal of the Institute of Image Electronics Engineers of Japan. 48, 1

  Research output: Contribution to journal › Short survey › peer-review

• 44.8-Gbaud DP-QPSK transmission over 3-km endlessly single-mode holey fiber

  Kanno, A., Yamamoto, N., Sotobayashi, H. & Kawanishi, T., 2011 Oct 4, 16th Opto-Electronics and Communications Conference, OECC 2011. p. 417-418 2 p. 6015193. (16th Opto-Electronics and Communications Conference, OECC 2011).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

• 4-4 effect of unit-cell arrangement on performance of multi-stage-planar cavity-free unileg thermoelectric generator using silicon nanowires

  Abe, K., Oda, K., Tomita, M., Matsuki, T., Matsukawa, T. & Watanabe, T., 2020 Sep 23, 2020 International Conference on Simulation of Semiconductor Processes and Devices, SISPAD 2020. Institute of Electrical and Electronics Engineers Inc., p. 75-78 4 p. 9241598. (International Conference on Simulation of Semiconductor Processes and Devices, SISPAD; vol. 2020-September).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

• 44-GHz, 0.5-V compact power detector IC in 65-nm CMOS

  Xu, K., Yang, X., Wang, W. & Yoshimasu, T., 2014 Jan 1, 2014 IEEE International Wireless Symposium, IWS 2014. IEEE Computer Society, 6864216. (2014 IEEE International Wireless Symposium, IWS 2014).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
  4 Citations (Scopus)

• 45-Gbaud, 32-pixel 2D-PDA for Multi-Core Fiber-Based Optical Wireless Communication

  Umezawa, T., Sakamoto, T., Kanno, A., Matsumoto, A., Yamamoto, N. & Kawanishi, T., 2018 Nov 6, 31st Annual Conference of the IEEE Photonics Society, IPC 2018. Institute of Electrical and Electronics Engineers Inc., 8527129. (31st Annual Conference of the IEEE Photonics Society, IPC 2018).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

• 45-NS 256K CMOS STATIC RAM WITH A TRI-LEVEL WORD LINE.

  Shinohara, H., Anami, K., Ichinose, K., Wada, T., Kohno, Y., Kawai, Y., Akasaka, Y. & Kayano, S., 1985 Oct, In: IEEE Journal of Solid-State Circuits. SC-20, 5

  Research output: Contribution to journal › Article › peer-review
  4 Citations (Scopus)

• 46.5-GHz-bandwidth monolithic receiver OEIC consisting of a waveguide pin photodiode and a distributed amplifier

  Muramoto, Y., Takahata, K., Fukano, H., Kato, K., Kozen, A., Nakajima, O. & Matsuoka, Y., 1997 Dec 1, In: IEE Conference Publication. 448 /5, p. 37-40 4 p.

  Research output: Contribution to journal › Conference article › peer-review
  5 Citations (Scopus)

• 46.5-GHz-bandwidth monolithic receiver OEIC consisting of a waveguide p-i-n photodiode and a HEMT distributed amplifier

  Takahata, K., Muramoto, Y., Fukano, H., Kato, K., Kozen, A., Nakajima, O. & Matsuoka, Y., 1998 Aug, In: IEEE Photonics Technology Letters. 10, 8, p. 1150-1152 3 p.

  Research output: Contribution to journal › Article › peer-review
  18 Citations (Scopus)

• 47.5 ghz membrane-iii-v-on-si directly modulated laser for sub-pj/bit 100-gbps transmission

  Diamantopoulos, N. P., Yamaoka, S., Fujii, T., Nishi, H., Takeda, K., Tsuchizawa, T., Kakitsuka, T. & Matsuo, S., 2021 Feb, In: Photonics. 8, 2, p. 1-11 11 p., 31.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  7 Citations (Scopus)

• 4800 BIT/S HIGH SPEED DATA TRANSMISSION OVER CELLULAR SYSTEM.

  Fukasawa, A., Sata, T., Tokuda, K. & Tokuyama, K., 1986, In: IEEE Vehicular Technology Conference. p. 208-214 7 p.

  Research output: Contribution to journal › Conference article › peer-review
  1 Citation (Scopus)

• 4-dimensional computer-based motion simulation after total hip arthroplasty

  Otake, Y., Hagio, K., Suzuki, N., Hattori, A., Sugano, N., Yonenobu, K. & Ochi, T., 2003, Medicine Meets Virtual Reality 11 - NextMed: Health Horizon. IOS Press, p. 251-257 7 p. (Studies in Health Technology and Informatics; vol. 94).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
  5 Citations (Scopus)

• 4-D space visualization with hidden hypersurface removal

  Miwa, T., Nakai, Y., Sawada, H. & Hashimoto, S., 2018 Feb 28, MHS 2017 - 28th 2017 International Symposium on Micro-NanoMechatronics and Human Science. Institute of Electrical and Electronics Engineers Inc., p. 1-5 5 p. (MHS 2017 - 28th 2017 International Symposium on Micro-NanoMechatronics and Human Science; vol. 2018-January).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
  2 Citations (Scopus)

• 4-D spatial perception established through hypercube recognition tasks using interactive visualization system with 3-D screen

  Miwa, T., Sakai, Y. & Hashimoto, S., 2015 Sep 13, Proceedings - SAP 2015: ACM SIGGRAPH Symposium on Applied Perception. Association for Computing Machinery, Inc, p. 75-82 8 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
  5 Citations (Scopus)

• 4D trajectory based operation in high density terminal control area considering the uncertainty of weather forecast data

  Tezuka, A., 2014 Jan 1, 29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014. International Council of the Aeronautical Sciences, (29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
  2 Citations (Scopus)

• 4-MBIT DRAM WITH FOLDED-BIT-LINE ADAPTIVE SIDEWALL-ISOLATED CAPACITOR (FASIC) CELL.

  Mashiko, K., Nagatomo, M., Arimoto, K., Matsuda, Y., Furutani, K., Matsukawa, T., Yamada, M., Yoshihara, T. & Nakano, T., 1987 Oct, In: IEEE Journal of Solid-State Circuits. SC-22, 5, p. 643-650 8 p.

  Research output: Contribution to journal › Article › peer-review
  10 Citations (Scopus)

• 4th International Conference on Networked Sensing Systems, INSS: Message from the general co-chairs

  Beigl, M. & Shoji, S., 2007 Dec 1, In: 4th International Conference on Networked Sensing Systems, INSS. 4297373.

  Research output: Contribution to journal › Editorial › peer-review