Heterogeneously integrated iii–v/si mos capacitor mach–zehnder modulator T Hiraki, T Aihara, K Hasebe, K Takeda, T Fujii, T Kakitsuka, ...
Nature Photonics 11 (8), 482-485, 2017
175 2017 Over 67 GHz bandwidth and 1.5 V Vπ InP-based optical IQ modulator with nipn heterostructure Y Ogiso, J Ozaki, Y Ueda, N Kashio, N Kikuchi, E Yamada, H Tanobe, ...
Journal of lightwave technology 35 (8), 1450-1455, 2017
156 2017 Directly modulated membrane lasers with 108 GHz bandwidth on a high-thermal-conductivity silicon carbide substrate S Yamaoka, NP Diamantopoulos, H Nishi, R Nakao, T Fujii, K Takeda, ...
Nature Photonics 15 (1), 28-35, 2021
145 2021 Directly modulated buried heterostructure DFB laser on SiO2 /Si substrate fabricated by regrowth of InP using bonded active layer S Matsuo, T Fujii, K Hasebe, K Takeda, T Sato, T Kakitsuka
Optics express 22 (10), 12139-12147, 2014
143 2014 Femtofarad optoelectronic integration demonstrating energy-saving signal conversion and nonlinear functions K Nozaki, S Matsuo, T Fujii, K Takeda, A Shinya, E Kuramochi, M Notomi
Nature Photonics 13 (7), 454-459, 2019
113 2019 Photonic-crystal nano-photodetector with ultrasmall capacitance for on-chip light-to-voltage conversion without an amplifier K Nozaki, S Matsuo, T Fujii, K Takeda, M Ono, A Shakoor, E Kuramochi, ...
Optica 3 (5), 483-492, 2016
85 2016 Search for correlations between the arrival directions of IceCube neutrino events and ultrahigh-energy cosmic rays detected by the Pierre Auger Observatory and the Telescope Array MG Aartsen, K Abraham, M Ackermann, J Adams, JA Aguilar, M Ahlers, ...
arXiv preprint arXiv:1511.09408, 2015
70 2015 Epitaxial growth of InP to bury directly bonded thin active layer on SiO2 /Si substrate for fabricating distributed feedback lasers on silicon T Fujii, T Sato, K Takeda, K Hasebe, T Kakitsuka, S Matsuo
IET Optoelectronics 9 (4), 151-157, 2015
66 2015 Heterogeneously integrated photonic-crystal lasers on silicon for on/off chip optical interconnects K Takeda, T Sato, T Fujii, E Kuramochi, M Notomi, K Hasebe, T Kakitsuka, ...
Optics express 23 (2), 702-708, 2015
55 2015 Multiwavelength membrane laser array using selective area growth on directly bonded InP on SiO2 /Si T Fujii, K Takeda, H Nishi, NP Diamantopoulos, T Sato, T Kakitsuka, ...
Optica 7 (7), 838-846, 2020
47 2020 Heterogeneously integrated membrane lasers on Si substrate for low operating energy optical links T Fujii, K Takeda, NP Diamantopoulos, E Kanno, K Hasebe, H Nishi, ...
IEEE Journal of Selected Topics in Quantum Electronics 24 (1), 1-8, 2017
47 2017 Membrane distributed-reflector laser integrated with SiOx-based spot-size converter on Si substrate H Nishi, T Fujii, K Takeda, K Hasebe, T Kakitsuka, T Tsuchizawa, ...
Optics express 24 (16), 18346-18352, 2016
47 2016 Directly Modulated DFB Laser on SiO /Si Substrate for Datacenter Networks S Matsuo, T Fujii, K Hasebe, K Takeda, T Sato, T Kakitsuka
Journal of Lightwave Technology 33 (6), 1217-1222, 2015
46 2015 239.3-Gbit/s net rate PAM-4 transmission using directly modulated membrane lasers on high-thermal-conductivity SiC S Yamaoka, NP Diamantopoulos, H Nishi, R Nakao, T Fujii, K Takeda, ...
45th European Conference on Optical Communication (ECOC 2019), 1-4, 2019
44 2019 1.3-µm directly modulated membrane laser array employing epitaxial growth of InGaAlAs MQW on InP/SiO2/Si substrate T Fujii, H Nishi, K Takeda, E Kanno, K Hasebe, T Kakitsuka, T Yamamoto, ...
ECOC 2016-Post Deadline Paper; 42nd European Conference on Optical …, 2016
40 2016 Photonic crystal lasers using wavelength-scale embedded active region S Matsuo, T Sato, K Takeda, A Shinya, K Nozaki, E Kuramochi, ...
Journal of Physics D: Applied Physics 47 (2), 023001, 2013
39 2013 Ultra-high bandwidth InP IQ modulator co-assembled with driver IC for beyond 100-GBd CDM Y Ogiso, H Wakita, M Nagatani, H Yamazaki, M Nakamura, T Kobayashi, ...
Optical Fiber Communication conference, Th4A. 2, 2018
35 2018 Ultralow-energy electro-absorption modulator consisting of InGaAsP-embedded photonic-crystal waveguide K Nozaki, A Shakoor, S Matsuo, T Fujii, K Takeda, A Shinya, E Kuramochi, ...
APL Photonics 2 (5), 2017
34 2017 Observing exceptional point degeneracy of radiation with electrically pumped photonic crystal coupled-nanocavity lasers K Takata, K Nozaki, E Kuramochi, S Matsuo, K Takeda, T Fujii, S Kita, ...
Optica 8 (2), 184-192, 2021
31 2021 Ultra-high bandwidth InP IQ modulator for beyond 100-GBd transmission Y Ogiso, J Ozaki, Y Ueda, H Wakita, M Nagatani, H Yamazaki, ...
Optical Fiber Communication Conference, M2F. 2, 2019
30 2019