Naoki Fujiwara

According to our database, Naoki Fujiwara authored at least 25 papers between 1999 and 2026.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2026

IQ Modulators with Two Segments using InP/SOI Chip-on-Wafer Bonding Process for Optical DAC.

Hajime Tanaka, Naotaka Kasuya, Taichi Misawa, Yohei Sobu, Shuntaro Maeda, Kento Komatsu, Naoko Inoue, Takehiko Kikuchi, Takuya Mitarai, Shun Kimura, Naoki Fujiwara, Nobuhiko Nishiyama, Takuo Tanemura, Shinsuke Tanaka, Hideki Yagi

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2026

High L-band Responsivity of Compact InP-on-Si Coherent-Receiver PICs via Chip-on-Wafer Bonding.

Takuya Okimoto, Takuya Mitarai, Yohei Sobu, Shuntaro Maeda, Shun Kimura, Takehiko Kikuchi, Naoko Inoue, Naoki Fujiwara, Nobuhiko Nishiyama, Takuo Tanemura, Shinsuke Tanaka, Hideki Yagi

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2026

500 mW O-Band Photonic-Crystal Surface-Emitting Lasers and Scalable 2D Arrays for Multi-Channel CPO Applications.

Yuhki Itoh, Takeshi Aoki, Makoto Ogasawara, Kosuke Fujii, Yusuke Sawada, Shun Kimura, T. Hoya, Hiroyuki Yoshinaga, Naoki Fujiwara, Hideki Yagi, Masaki Yanagisawa, Masahiro Yoshida, Takuya Inoue, Menaka de Zoysa, Kenji Ishizaki, Susumu Noda

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2026

Ultrasmall SCL-band Wavelength Multiplexers Using Mosaic-Based Digital Metamaterial.

Takeshi Fujisawa, Takuya Mitarai, Yusuke Sawada, Takuya Okimoto, Takuo Hiratani, Kento Komatsu, Hideki Yagi, Naoki Fujiwara

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2026

2025

Visualizing fatigue mechanisms in non-communicable diseases: an integrative approach with multi-omics and machine learning.

Yusuke Kobayashi, Naoki Fujiwara, Yuki Murakami, Shoichi Ishida, Sho Kinguchi, Tatsuya Haze, Kengo Azushima, Akira Fujiwara, Hiromichi Wakui, Masayoshi Sakakura, Kei Terayama, Nobuhito Hirawa, Tetsuo Isozaki, Hiroaki Yasuzaki, Hajime Takase, Yuichiro Yano, Kouichi Tamura

BMC Medical Informatics Decis. Mak., December, 2025

InP-Based Photonic Crystal Surface Emitting Lasers for Optical Communication and LiDAR Applications.

Yuhki Itoh, Takeshi Aoki, Makoto Ogasawara, Kosuke Fujii, Yusuke Sawada, R. Tanaka, Shun Kimura, Hiroyuki Yoshinaga, Naoki Fujiwara, Hideki Yagi, Masaki Yanagisawa, Masahiro Yoshida, Takuva Inoue, Menaka de Zoysa, Kenji Ishizaki, Susumu Noda

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2025

High-power and narrow linewidth SOA-integrated DFB laser for 400-mW class external laser sources.

Daisuke Inoue, Konosuke Aoyama, Takashi Matsui, Shinya Iizaka, Shigenori Toyoshima, Shinsuke Yanagida, Kotaro Hoshino, Naoki Fujiwara, Daisei Shoji, Harold Kamisugi

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2025

Coherent Free-Space Optical Communication at the C-Band Using InP-Based Photonic-Crystal Surface-emitting Laser.

Shota Ishimura, Takeshi Aoki, Takuva Inoue, Hiroyuki Yoshinaga, Makoto Ogasawara, Yuhki Itoh, Kosuke Fujii, Yusuke Sawada, Shun Kimura, Naoki Fujiwara, Hideki Yagi, Masaki Yanagisawa, Hidenori Takahashi, Takehiro Tsuritani, Ryohei Morita, Masahiro Yoshida, Menaka de Zoysa, Kenji Ishizaki, Susumu Noda

Proceedings of the European Conference on Optical Communications, 2025

Scalable Multi-Band Narrow Linewidth Operation by a Single-Chip Tunable Laser with InP/Si Heterogeneous Integration.

Takuo Hiratani, Kento Komatsu, Hidenari Fujikata, Naoki Fujiwara, Naoko Inoue, Takehiko Kikuchi, Takuya Mitarai, Shun Kimura, Takuya Okimoto, Yusuke Sawada, Eiichi Banno, Takashi Matsui, Takeshi Fujisawa, Nobuhiko Nishiyama, Hideki Yagi

Proceedings of the European Conference on Optical Communications, 2025

Ultrasmall Mode Exchangers Based on Mosaic Structure Designed by Gradient Direct Binary Search Method.

Takeshi Fujisawa, Yasuhide Tsuji, Takuya Mitarai, Yusuke Sawada, Takuya Okimoto, Takuo Hiratani, Kento Komatsu, Hideki Yagi, Naoki Fujiwara

Proceedings of the European Conference on Optical Communications, 2025

Directly Modulated $1.55 \ \mu\text{m}$-Wavelength Photonic-Crystal Surface-Emitting Lasers for Free-Space Optical Communication.

Takeshi Aoki, Shota Ishimura, Takuya Inoue, Hiroyuki Yoshinaga, Makoto Ogasawara, Yuhki Itoh, Kosuke Fujii, Yusuke Sawada, Shun Kimura, Naoki Fujiwara, Hideki Yagi, Masaki Yanagisawa, Hidenori Takahashi, Takehiro Tsuritani, Ryohei Morita, Masahiro Yoshida, Menaka de Zoysa, Kenji Ishizaki, Susumu Noda

Proceedings of the European Conference on Optical Communications, 2025

2024

InP-based Optical Devices Integrated on Silicon Photonic Circuits.

Takuya Okimoto, Naoki Fujiwara, Naoko Inoue, Takuo Hiratani, Takehiko Kikuchi, Takuya Mitarai, Munetaka Kurokawa, Hajime Tanaka, Hidenari Fujikata, Tohma Watanabe, Toshiyuki Nitta, Nobuhiko Nishiyama, Hideki Yagi

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2024

2023

A high-power, power-efficient 1.3-μm SOA-integrated DFB laser for CPO applications.

Daisuke Inoue, Konosuke Aoyama, Naoki Fujiwara, Daisei Shoji, Harold Kamisugi

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2023

2022

Output Power Characterization of Flexible Thermoelectric Power Generators.

Daiki Kansaku, Nobuhiro Kawase, Naoki Fujiwara, Faizan Khan, Arockiyasamy Periyanayaga Kristy, Kuruvankatil Dharmajan Nisha, Toshitaka Yamakawa, Kazushi Ikeda, Yasuhiro Hayakawa, Kenji Murakami, Masaru Shimomura, Hiroya Ikeda

IEICE Trans. Electron., October, 2022

Compact Power Splitters with Mosaic-based Structure Designed by Bayesian Direct-binary-search Method.

Takuya Mitarai, Takeshi Fujisawa, Takuya Okimoto, Naoya Kono, Naoki Fujiwara, Yusuke Sawada, Taichi Muratsubaki, Takanori Sato, Kunimasa Saitoh, Hideki Yagi

Proceedings of the 2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC), 2022

Characteristics of GaInAsP/SOI Hybrid Semiconductor Optical Amplifier with InP-based Two-storied Ridge Structure.

Yutaka Makihara, Nobuhiko Nishiyama, Takehiko Kikuchi, Takuo Hiratani, Naoki Fujiwara, Naoko Inoue, Toshiyuki Nitta, Moataz Eissa, Takuya Mitarai, Yuning Wang, Yoshitaka Ohiso, Tomohiro Amemiya, Hideki Yagi

Proceedings of the 2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC), 2022

2020

High Output Power and Compact LAN-WDM EADFB Laser TOSA for 4 × 100-Gbit/s/λ 40-km Fiber-Amplifier-Less Transmission.

Shigeru Kanazawa, Takahiko Shindo, Mingchen Chen, Naoki Fujiwara, Masahiro Nada, Toshihide Yoshimatsu, Atsushi Kanda, Yasuhiko Nakanishi, Fumito Nakajima, Kimikazu Sano, Yozo Ishikawa, Kazuyo Mizuno, Hideaki Matsuzaki

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2020

2017

Hybrid learning in signalling games.

Jeffrey A. Barrett, Calvin T. Cochran, Simon M. Huttegger, Naoki Fujiwara

J. Exp. Theor. Artif. Intell., 2017

Advantages of SOA Assisted Extended Reach EADFB Laser (AXEL) for Operation at Low Power and with Extended Transmission Reach.

Wataru Kobayashi, Naoki Fujiwara, Takahiko Shindo, Yoshitaka Ohiso, Shigeru Kanazawa, Hiroyuki Ishii, Koichi Hasebe, Hideaki Matsuzaki, Mikitaka Itoh

IEICE Trans. Electron., 2017

28-Gbit/s 80-km transmission using SOA-assisted extended-reach EADFB laser (AXEL).

Koichi Hasebe, Wataru Kobayashi, Naoki Fujiwara, Takahiko Shindo, Toshihide Yoshimatsu, Shigeru Kanazawa, Tetsuichiro Ohno, Hiroaki Sanjoh, Yoshitaka Ohiso, Hiroyuki Ishii, Yoshiaki Sone, Hideaki Matsuzaki

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2017

2016

2-µm wavelength tunable distributed Bragg reflector laser.

Takuya Kanai, Naoki Fujiwara, Yoshitaka Ohiso, Hiroyuki Ishii, Makoto Shimokozono, Mikitaka Itoh

IEICE Electron. Express, 2016

2015

Construction of measurement systems for fatigue using flicker values.

Naoki Fujiwara, Akihiro Tanaka, Ryota Inoue, Kentaro Kinoshita, Satoru Kishida

Proceedings of the 2015 International Symposium on Intelligent Signal Processing and Communication Systems, 2015

2014

Effect of tiredness on voice signals using neural network systems.

Naoki Fujiwara, Ryota Inoue, Satoru Kidhida

Proceedings of the 2014 IEEE Asia Pacific Conference on Circuits and Systems, 2014

2011

Long-Reach 100 Gbit Ethernet Light Source Based on 4×25-Gbit/s 1.3-µm InGaAlAs EADFB Lasers.

Takeshi Fujisawa, Kiyoto Takahata, Takashi Tadokoro, Wataru Kobayashi, Akira Ohki, Naoki Fujiwara, Shigeru Kanazawa, Takayuki Yamanaka, Fumiyoshi Kano

IEICE Trans. Electron., 2011

1999

Buzz off.

Naoki Fujiwara

Proceedings of the 26th Annual Conference on Computer Graphics and Interactive Techniques, 1999