Takuro Fujii

Publication Activity (10 Years)

Years Active: 2011-2024
Publications (10 Years): 42

Top Topics

Top Venues

IEICE Trans. Electron.

Publications

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)
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)
Takuro Fujii, Hayato Nakagawa, Teppei Takeshima, Yasushi Yumura, Tomoki Hamagami
Automated Sperm Assessment Framework and Neural Network Specialized for Sperm Video Recognition. WACV (2024)
Takuro Fujii, Shuhei Tarashima
BiLMa: Bidirectional Local-Matching for Text-based Person Re-identification. ICCV (Workshops) (2023)
Takuro Fujii, Shuhei Tarashima
BiLMa: Bidirectional Local-Matching for Text-based Person Re-identification. CoRR (2023)
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)
Takuro Fujii, Hayato Nakagawa, Teppei Takeshima, Yasushi Yumura, Tomoki Hamagami
Automated Sperm Assessment Framework and Neural Network Specialized for Sperm Video Recognition. CoRR (2023)
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 (2023)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
Koji Takeda, Takuro Fujii, Akihiko Shinya, Masaya Notomi, Takaaki Kakitsuka, Shinji Matsuo
1-fJ/bit Direct Modulation of Photonic-Crystal Lasers. ECOC (2018)
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)
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)
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)
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. (2) (2017)
Takuro Fujii, Koji Takeda, Hidetaka Nishi, Shinji Matsuo
High Performance Epitaxially Grown III-V Membrane Lasers on Si. ECOC (2017)
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)
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. (10) (2017)
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)
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)
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)
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)
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)
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) (2011)