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ORCIDTakuro Fujii
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2020 – today
- 2024
[j4]Hayato Nakagawa
, Takuro Fujii, Yasushi Yumura, Tomoki Hamagami:
Estimation of Multi-Expert Sperm Assessments Using Video Recognition Based Model Trained by EMD Loss. IEEE Access 12: 112702-112713 (2024)- [c42]Tatsurou Hiraki, Yoshiho Maeda, Takuro Fujii, Koji Takeda, Takuma Aihara, Toru Segawa, Yasutomo Ota, Satoshi Iwamoto, Yasuhiko Arakawa, Shinji Matsuo:
Uncooled Operation of Directly Modulated Membrane Laser with Buried Sapphire Layer on Si Substrate. OFC 2024: 1-3 - [c41]Koji Takeda, Takuro Fujii, Yoshiho Maeda, Toru Segawa, Shinji Matsuo:
Process-tolerant III-V/Si Membrane Distributed Reflector Lasers and 50-Gb/s Direct Modulation at 80°C. OFC 2024: 1-3 - [c40]Takuro Fujii, Hayato Nakagawa, Teppei Takeshima, Yasushi Yumura, Tomoki Hamagami:
Automated Sperm Assessment Framework and Neural Network Specialized for Sperm Video Recognition. WACV 2024: 7660-7669 - 2023
- [c39]Takuro Fujii, Koki Shibata, Atsuki Yamaguchi, Terufumi Morishita, Yasuhiro Sogawa:
How do different tokenizers perform on downstream tasks in scriptio continua languages?: A case study in Japanese. ACL (student) 2023: 39-49 - [c38]Takuro Fujii, Shuhei Tarashima:
BiLMa: Bidirectional Local-Matching for Text-based Person Re-identification. ICCV (Workshops) 2023: 2778-2782 - [c37]Takuma Aihara, Tatsurou Hiraki, Takuro Fujii, Koji Takeda, Hiroshi Fukuda, Takaaki Kakitsuka, Tai Tsuchizawa, Shinji Matsuo:
Uncooled Operation of Si Mach-Zehnder Modulator Integrated with Membrane Semiconductor Optical Amplifiers inside Interferometer Arms. OFC 2023: 1-3 - [c36]Toshiki Kishi, Munehiko Nagatani, Shigeru Kanazawa, Kota Shikama, Takuro Fujii, Hidetaka Nishi, Tadashi Minotani, Norio Sato, Toru Segawa, Shinji Matsuo:
30-Gbps/ch x 4 ch Simultaneous Error-Free Transmission with A Low-Power Transmitter Flip-Chip-Bonded 1.3-μm LD-Array-on-Si. OFC 2023: 1-3 - [i3]Takuro Fujii, Koki Shibata, Atsuki Yamaguchi, Terufumi Morishita, Yasuhiro Sogawa:
How do different tokenizers perform on downstream tasks in scriptio continua languages?: A case study in Japanese. CoRR abs/2306.09572 (2023) - [i2]Takuro Fujii, Shuhei Tarashima:
BiLMa: Bidirectional Local-Matching for Text-based Person Re-identification. CoRR abs/2309.04675 (2023) - [i1]Takuro Fujii, Hayato Nakagawa, Teppei Takeshima, Yasushi Yumura, Tomoki Hamagami:
Automated Sperm Assessment Framework and Neural Network Specialized for Sperm Video Recognition. CoRR abs/2311.05927 (2023) - 2022
- [c35]Tatsurou Hiraki, Takuma Aihara, Yoshiho Maeda, Takuro Fujii, Tomonari Sato, Tai Tsuchizawa, Shinji Matsuo, Kiyoto Takahata, Takaaki Kakitsuka:
Over-67-GHz-bandwidth Membrane InGaAlAs EADFB Laser on Si Platform. OFC 2022: 1-3 - 2021
- [c34]Nikolaos-Panteleimon Diamantopoulos, Takuro Fujii, Suguru Yamaoka, Hidetaka Nishi, Koji Takeda, Tai Tsuchizawa, Toru Segawa, Takaaki Kakitsuka, Shinji Matsuo:
2-channel 112-Gbps NRZ Short-Reach Transmission Based on 60-GHz-Bandwidth Directly-Modulated Membrane Laser Array on Si. ECOC 2021: 1-4 - [c33]Takuro Fujii, Tomonari Sato, Nikolaos-Panteleimon Diamantopoulos, Koji Takeda, Hidetaka Nishi, Takuma Tsurugaya, Tai Tsuchizawa, Shinji Matsuo:
8-ch, 160-nm-Wavelength-Range Membrane Laser Array Using Selective Epitaxy on InP-on-Insulator Substrate. OFC 2021: 1-3 - 2020
- [c32]Takuma Aihara, Tatsurou Hiraki, Takuro Fujii, Koji Takeda, Tai Tsuchizawa, Takaaki Kakitsuka, Hiroshi Fukuda, Shinji Matsuo:
Heterogeneously Integrated Membrane DFB Laser and Si Mach-Zehnder Modulator on Si Photonics Platform. ECOC 2020: 1-4 - [c31]Nikolaos-Panteleimon Diamantopoulos, Suguru Yamaoka, Takuro Fujii, Hidetaka Nishi, Koji Takeda, Tai Tsuchizawa, Takaaki Kakitsuka, Shinji Matsuo:
Net 113-Gbps PAM-4 Transmission Using Membrane DML-on-Si with 0.34 pJ/bit at 50 °C. ECOC 2020: 1-4 - [c30]Tatsurou Hiraki, Takuma Aihara, Yoshiho Maeda, Takuro Fujii, Tai Tsuchizawa, Kiyoto Takahata, Takaaki Kakitsuka, Shinji Matsuo:
50-GHz-bandwidth Electro-absorption Modulator with Membrane InGaAsP Lateral p-i-n Diode on Si Platform. ECOC 2020: 1-4 - [c29]Takuma Aihara, Tatsurou Hiraki, Takuro Fujii, Koji Takeda, Takaaki Kakitsuka, Tai Tsuchizawa, Shinji Matsuo:
Mach-Zehnder Modulator using Membrane InGaAsP Phase Shifters and SOAs inside Interferometer Arms on Si Photonics Platform. OFC 2020: 1-3 - [c28]Nikolaos-Panteleimon Pandelis Diamantopoulos, Hidetaka Nishi, Takuro Fujii, Kota Shikama, Takashi Matsui, Koji Takeda, Takaaki Kakitsuka, Kazuhide Nakajima, Shinji Matsuo:
4×56-GBaud PAM-4 SDM Transmission over 5.9-km 125-µm-Cladding MCF using III-V-on-Si DMLs. OFC 2020: 1-3 - [c27]Nikolaos-Panteleimon Diamantopoulos, Hiroshi Yamazaki, Suguru Yamaoka, Munehiko Nagatani, Hidetaka Nishi, Hiromasa Tanobe, Ryo Nakao, Takuro Fujii, Koji Takeda, Takaaki Kakitsuka, Hitoshi Wakita, Minoru Ida, Hideyuki Nosaka, Fumio Koyama, Yutaka Miyamoto, Shinji Matsuo:
Net 321.24-Gb/s IMDD Transmission Based on a >100-GHz Bandwidth Directly-Modulated Laser. OFC 2020: 1-3 - [c26]Toshiki Kishi, Munehiko Nagatani, Shigeru Kanazawa, Kota Shikama, Takuro Fujii, Hidetaka Nishi, Hiroshi Yamazaki, Norio Sato, Hideyuki Nosaka, Shinji Matsuo:
A 0.57-mW/Gbps, 2ch × 53-Gbps Low-Power PAM4 Transmitter Front-End Flip-Chip-Bonded 1.3-µm LD-Array-on-Si. OFC 2020: 1-3 - [c25]Yoshiho Maeda, Tatsurou Hiraki, Takuma Aihara, Takuro Fujii, Koji Takeda, Tai Tsuchizawa, Shinji Matsuo:
Si-waveguide-coupled Membrane InGaAsP-multiple-quantum-well Photodetector with Large Bandwidth at High Optical Input Power. OFC 2020: 1-3 - [c24]Kengo Nozaki, Shinji Matsuo, Takuro Fujii, Koji Takeda, Eiichi Kuramochi, Akihiko Shinya, Masaya Notomi:
Femto-Farad Nanophotonic Devices for fJ/Bit Signal Conversion. OFC 2020: 1-3
2010 – 2019
- 2019
- [c23]Takuma Aihara, Tatsurou Hiraki, Takuro Fujii, Koji Takeda, Tai Tsuchizawa, Takaaki Kakitsuka, Hiroshi Fukuda, Shinji Matsuo:
56-Gbit/s Operations of Mach-Zehnder Modulators using 300-μm-Long Membrane InGaAsP Phase Shifters and SiN waveguides on Si. OFC 2019: 1-3 - [c22]Toshiki Kishi, Hitoshi Wakita, Kota Shikama, Munehiko Nagatani, Shigeru Kanazawa, Takuro Fujii, Hidetaka Nishi, Hiroshi Ishikawa, Yuko Kawajiri, Atsushi Aratake, Hideyuki Nosaka, Hiroshi Fukuda, Shinji Matsuo:
A 25-Gbps × 4 ch, Low-Power Compact Wire-Bond-Free 3D-Stacked Transmitter Module with 1.3-μm LD-Array-on-Si for On-Board Optics. OFC 2019: 1-3 - [c21]Yoshihiro Ogiso, Josuke Ozaki, Yuta Ueda, Hitoshi Wakita, Munehiko Nagatani, Hiroshi Yamazaki, Masanori Nakamura, Takayuki Kobayashi, Shigeru Kanazawa, Takuro Fujii, Yasuaki Hashizume, Hiromasa Tanobe, Nobuhiro Nunoya, Minoru Ida, Yutaka Miyamoto, Mitsuteru Ishikawa:
Ultra-High Bandwidth InP IQ Modulator for Beyond 100-GBd Transmission. OFC 2019: 1-3 - [c20]Nikolaos-Panteleimon Diamantopoulos, Takuro Fujii, Hidetaka Nishi, Koji Takeda, Takaaki Kakitsuka, Shinji Matsuo:
ANN Equalizer for Performance Improvement of PAM-M Signals Using $1.3-\mu \mathrm{m}$ Membrane DML-on-Silicon. OECC/PSC 2019: 1-3 - 2018
- [c19]Nikolaos-Panteleimon Diamantopoulos, Kota Shikama, Hidetaka Nishi, Takuro Fujii, Toshiki Kishi, Koji Takeda, Yoshiteru Abe, Takashi Matsui, Takaaki Kakitsuka, Hiroshi Fukuda, Kazuhide Nakajima, Shinji Matsuo:
Energy-Efficient 400G SDM Transmitter Based on DMT and a 1.3-sµm Membrane DML-Array-on-Si. ECOC 2018: 1-3 - [c18]Tatsurou Hiraki, Takuma Aihara, Takuro Fujii, Koji Takeda, Tai Tsuchizawa, Takaaki Kakitsuka, Hiroshi Fukuda, Shinji Matsuo:
Heterogeneously Integrated Mach-Zehnder Modulator Using Membrane InGaAsP Phase Shifter and Hydrogen-Free SiN Waveguide on Si Platform. ECOC 2018: 1-3 - [c17]Koji Takeda, Takuro Fujii, Akihiko Shinya, Masaya Notomi, Takaaki Kakitsuka, Shinji Matsuo:
1-fJ/bit Direct Modulation of Photonic-Crystal Lasers. ECOC 2018: 1-3 - [c16]Takuma Aihara, Tatsurou Hiraki, Koji Takeda, Koichi Hasebe, Takuro Fujii, Tai Tsuchizawa, Takaaki Kakitsuka, Shinji Matsuo:
Lateral Current Injection Membrane Buried Heterostructure Lasers Integrated on 200-nm-thick Si Waveguide. OFC 2018: 1-3 - [c15]Nikolaos-Panteleimon Pandelis Diamantopoulos, Takuro Fujii, Hidetaka Nishi, Koji Takeda, Takaaki Kakitsuka, Shinji Matsuo:
Energy-Efficient 120-Gbps DMT Transmission Using a 1.3-μm Membrane Laser on Si. OFC 2018: 1-3 - [c14]Takuro Fujii, Koji Takeda, Hidetaka Nishi, Shinji Matsuo:
Heterogeneously Integrated III-V Lasers Fabricated Using Epitaxial Growth on an InP/SiO2/Si Substrate. OFC 2018: 1-3 - [c13]Toshiki Kishi, Munehiko Nagatani, Shigeru Kanazawa, Shinsuke Nakano, Hiroaki Katsurai, Takuro Fujii, Hidetaka Nishi, Takaaki Kakitsuka, Koichi Hasebe, Kota Shikama, Yuko Kawajiri, Atsushi Aratake, Hideyuki Nosaka, Hiroshi Fukuda, Shinji Matsuo:
A 137-mW, 4 ch × 25-Gbps Low-Power Compact Transmitter Flip-Chip-Bonded 1.3-μm LD-Array-on-Si. OFC 2018: 1-3 - [c12]Hidetaka Nishi, Takuro Fujii, Nikolaos-Panteleimon Diamantopoulos, Koji Takeda, Erina Kanno, Takaaki Kakitsuka, Tai Tsuchizawa, Hiroshi Fukuda, Shinji Matsuo:
Monolithic Integration of an 8-channel Directly Modulated Membrane-laser Array and a SiN AWG Filter on Si. OFC 2018: 1-3 - [c11]Yoshihiro Ogiso, Hitoshi Wakita, Munehiko Nagatani, Hiroshi Yamazaki, Masanori Nakamura, Takayuki Kobayashi, Johsuke Ozaki, Yuta Ueda, S. Nakano, Shigeru Kanazawa, Takuro Fujii, Yasuaki Hashizume, Hiromasa Tanobe, Nobuhiro Nunoya, Minoru Ida, Yutaka Miyamoto, Nobuhiro Kikuchi:
Ultra-High Bandwidth InP IQ Modulator co-assembled with Driver IC for Beyond 100-GBd CDM. OFC 2018: 1-3 - [c10]Kota Shikama, Yoshiteru Abe, Toshiki Kishi, Koji Takeda, Takuro Fujii, Hidetaka Nishi, Takashi Matsui, Atsushi Aratake, Kazuhide Nakajima, Shinji Matsuo:
Multicore-Fiber LC Receptacle with Compact Fan-in/Fan-out for Short-Reach Transceivers. OFC 2018: 1-3 - [c9]Nikolaos-Panteleimon Diamantopoulos, Takuro Fujii, Hidetaka Nishi, Koji Takeda, Takaaki Kakitsuka, Shinji Matsuo:
Energy-Efficient 100-Gbps PAM Transmissions Using a 1.3-µm Membrane DML-on-Silicon. PSC 2018: 1-3 - 2017
- [j3]Takuro Fujii, Koji Takeda, Erina Kanno, Koichi Hasebe, Hidetaka Nishi, Tsuyoshi Yamamoto, Takaaki Kakitsuka, Shinji Matsuo:
Evaluation of Device Parameters for Membrane Lasers on Si Fabricated with Active-Layer Bonding Followed by Epitaxial Growth. IEICE Trans. Electron. 100-C(2): 196-203 (2017) - [j2]Kengo Nozaki, Shinji Matsuo, Koji Takeda, Takuro Fujii, Masaaki Ono, Abdul Shakoor, Eiichi Kuramochi, Masaya Notomi:
Sub-fF-Capacitance Photonic-Crystal Photodetector Towards fJ/bit On-Chip Receiver. IEICE Trans. Electron. 100-C(10): 750-758 (2017) - [c8]Takuro Fujii, Koji Takeda, Hidetaka Nishi, Shinji Matsuo:
High Performance Epitaxially Grown III-V Membrane Lasers on Si. ECOC 2017: 1-3 - [c7]Tatsurou Hiraki, Takuma Aihara, Koichi Hasebe, Takuro Fujii, Koji Takeda, Takaaki Kakitsuka, Tai Tsuchizawa, Hiroshi Fukuda, Shinji Matsuo:
32-Gbit/s Heterogeneously Integrated Mach-Zehnder Modulator with 250μm-long III-V/Si MOS-capacitor Phase Shifter. ECOC 2017: 1-3 - [c6]Yusuke Muranaka, Tatsushi Nakahara, Salah Ibrahim, Takuro Fujii, Toru Segawa, Toshikazu Hashimoto, Ryo Takahashi:
Monolithically Integrated 4×4 Optical Switch with Cascaded MZIs and EAM-Gate Array. ECOC 2017: 1-3 - [c5]Tatsurou Hiraki, Takuma Aihara, Koichi Hasebe, Takuro Fujii, Koji Takeda, Tai Tsuchizawa, Takaaki Kakitsuka, Hiroshi Fukuda, Shinji Matsuo:
Heterogeneously integrated InP/Si metal-oxide-semiconductor capacitor Mach-Zehnder modulator. OFC 2017: 1-3 - 2015
- [c4]Hidetaka Nishi, Takuro Fujii, Koji Takeda, Koichi Hasebe, Takaaki Kakitsuka, Tai Tsuchizawa, Tsuyoshi Yamamoto, Koji Yamada, Shinji Matsuo:
Membrane distributed-reflector laser integrated with SiOx-based spot-size converter on Si platform. ECOC 2015: 1-3 - 2014
- [c3]Koichi Hasebe, Tomonari Sato, Koji Takeda, Takuro Fujii, Takaaki Kakitsuka, Shinji Matsuo:
50-Gbit/s operation of lateral pin diode structure electro-absorption modulator integrated DFB laser. ECOC 2014: 1-3 - [c2]Shinji Matsuo, Takuro Fujii, Koichi Hasebe, Koji Takeda, Tomonari Sato, Takaaki Kakitsuka:
Ultralow operating energy of directly modulated DFB laser on SiO2/Si substrate. ECOC 2014: 1-3 - [c1]Koji Takeda, Tomonari Sato, Takuro Fujii, Akihiko Shinya, Eiichi Kuramochi, Masaya Notomi, Koichi Hasebe, Takaaki Kakitsuka, Shinji Matsuo:
25-Gbit/s direct modulation of photonic-crystal lasers with a 10.5-fJ/bit energy cost for on/off-chip optical interconnects. ECOC 2014: 1-3 - 2011
- [j1]Takuro Fujii, Yoshihiro Taguchi, Toshiharu Saiki, Yuji Nagasaka:
A Fusion-Spliced Near-Field Optical Fiber Probe Using Photonic Crystal Fiber for Nanoscale Thermometry Based on Fluorescence-Lifetime Measurement of Quantum Dots. Sensors 11(9): 8358-8369 (2011)
Coauthor Index
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