Toshikazu Hashimoto

According to our database, Toshikazu Hashimoto authored at least 36 papers between 2007 and 2024.

Collaborative distances:

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

2024

Training Spiking Neural Networks via Augmented Direct Feedback Alignment.

Yongbo Zhang, Katsuma Inoue, Mitsumasa Nakajima, Toshikazu Hashimoto, Yasuo Kuniyoshi, Kohei Nakajima

CoRR, 2024

2023

Densely Parallelized Photonic Tensor Processor on Hybrid Waveguide/Free-Space-Optics.

Mitsumasa Nakajima, Kenji Tanaka, Katsuma Inoue, Kohei Nakajima, Toshikazu Hashimoto

Proceedings of the International Conference on Photonics in Switching and Computing, 2023

Optical clock distribution over stable fiber links in noisy environments.

Tomoya Akatsuka, Hiromitsu Imai, Masao Takamoto, Ichiro Ushijima, Takashi Goh, Toshikazu Hashimoto, Hidetoshi Katori, Katsuya Oguri, Tetsuomi Sogawa

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2023

2022

Neural Schrödinger Equation: Physical Law as Deep Neural Network.

Mitsumasa Nakajima, Kenji Tanaka, Toshikazu Hashimoto

IEEE Trans. Neural Networks Learn. Syst., 2022

Physical Deep Learning with Biologically Plausible Training Method.

Mitsumasa Nakajima, Katsuma Inoue, Kenji Tanaka, Yasuo Kuniyoshi, Toshikazu Hashimoto, Kohei Nakajima

CoRR, 2022

Photonic Reservoir Computing on Coherent Linear Processor.

Mitsumasa Nakajima, Takuma Tsurugaya, Kenji Tanaka, Shinji Matsuo, Toshikazu Hashimoto

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

Silica-PLC based mode-dependent-loss equalizer for two LP mode transmission.

Takeshi Fujisawa, Takayoshi Mori, Junji Sakamoto, Yoko Yamashita, Taiji Sakamoto, Ryota Imada, Ryoto Ima, Takanori Sato, Kei Watanabe, Ryoichi Kasahara, Toshikazu Hashimoto, Kazuhide Nakajima, Kunimasa Saitoh

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2022

2020

Transmitter Bandwidth Extension using Optical Time-Interleaving Modulator and Digital Spectral Weaver.

Hiroshi Yamazaki, Masanori Nakamura, Takashi Goh, Toshikazu Hashimoto, Yutaka Miyamoto

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2020

Automated Optical Waveguide Design Based on Wavefront Matching Method.

Toshikazu Hashimoto

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2020

Wavefront-Matching-Method-Designed Six-Mode-Exchanger Based on Grating-Like Waveguide on Silica-PLC Platform.

Takeshi Fujisawa, Taiji Sakamoto, Masashi Miyata, Takashi Matsui, Toshikazu Hashimoto, Ryoichi Kasahara, Kazuhide Nakajima, Kunimasa Saitoh

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2020

2019

Investigation of All-Optical Wavelength Conversion with 2-Stage-Comb-Generated Pump for High Frequency Resolution.

Masashi Yamazaki, Kazunori Seno, Toshikazu Hashimoto, Hiroyuki Uenohara

Proceedings of the 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC), 2019

Digital-Preprocessed Analog-Multiplexed DAC for High-Speed Optical Communications.

Hiroshi Yamazaki, Munehiko Nagatani, Hitoshi Wakita, Masanori Nakamura, Fukutaro Hamaoka, Takayuki Kobayashi, Yoshihiro Ogiso, Minoru Ida, Toshikazu Hashimoto, Hideyuki Nosaka, Yutaka Miyamoto

Proceedings of the 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC), 2019

6×6 Wavelength Cross Connect with 2-f and 4-f Optical Systems for SDM Photonic Nodes.

Kazunori Serio, Akira Isoda, Takayuki Mizuno, Keita Yamaguchi, Kenya Suzuki, Toshikazu Hashimoto, Yutaka Miyamoto

Proceedings of the 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC), 2019

Burst-Mode Optical-Clock-Pulse Generator with Enhanced Sensitivity.

Salah Ibrahim, Tatsushi Nakahara, Yusuke Muranaka, Toshikazu Hashimoto

Proceedings of the 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC), 2019

Novel Lambda-Rich Data Center Network: From Underlying Principles to Candidate Technologies.

Salah Ibrahim, Toshikazu Hashimoto

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2019

2018

A Novel Optoelectronic Parallel-to-Serial Converter for 100-Gbps Optical Packets.

Hiroshi Ishikawa, Salah Ibrahim, Tatsushi Nakahara, Hiroki Sugiyama, Toshikazu Hashimoto

Proceedings of the Photonics in Switching and Computing, 2018

Integrated Wavelength Selective Switch Array for Space Division Multiplexed Network with Ultra-Low Inter-Spatial Channel Crosstalk.

Keita Yamaguchi, Kazunori Seno, Kenya Suzuki, Hiroki Kawahara, Mitsunori Fukutoku, Toshikazu Hashimoto, Yutaka Miyamoto

Proceedings of the Optical Fiber Communications Conference and Exposition, 2018

Over-100-Spatial-Channel Programmable Spectral Processor for SDM Signal Monitoring.

Mitsumasa Nakajima, Kenya Suzuki, Kazunori Seno, Takashi Goh, Ryoichi Kasahara, Mitsunori Fukutoku, Yutaka Miyamoto, Toshikazu Hashimoto

Proceedings of the Optical Fiber Communications Conference and Exposition, 2018

Transmission of 400-Gbps Discrete Multi-Tone Signal Using >100-GHz-Bandwidth Analog Multiplexer and InP Mach-Zehnder Modulator.

Hiroshi Yamazaki, Munehiko Nagatani, Hitoshi Wakita, Yoshihiro Ogiso, Masanori Nakamura, Minoru Ida, Toshikazu Hashimoto, Hideyuki Nosaka, Yutaka Miyamoto

Proceedings of the European Conference on Optical Communication, 2018

Wide-Passband C+L-Band Wavelength Selective Switch by Alternating Wave-Band Arrangement on LCOS.

Kazunori Seno, Keita Yamaguchi, Kenya Suzuki, Toshikazu Hashimoto

Proceedings of the European Conference on Optical Communication, 2018

Contention-Less Scheduling-Free Torus Optical Network Comprising Thousands of Nodes.

Salah Ibrahim, Toshikazu Hashimoto, Satoshi Shigematsu

Proceedings of the European Conference on Optical Communication, 2018

2017

SDM-compatible dynamic gain equalizer using spatial and planar optical circuit.

Mitsumasa Nakajima, Kenya Suzuki, Keita Yamaguchi, Hirotaka Ono, Hiroki Kawahara, Mitsunori Fukutoku, Takayuki Mizuno, Yutaka Miyamoto, Toshikazu Hashimoto

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2017

Ultra-Wideband Digital-to-Analog Conversion Technologies for Tbit/s channel transmission.

Hiroshi Yamazaki, Munehiko Nagatani, Fukutaro Hamaoka, Shigeru Kanazawa, Hideyuki Nosaka, Toshikazu Hashimoto, Yutaka Miyamoto

Proceedings of the European Conference on Optical Communication, 2017

Monolithically Integrated 4×4 Optical Switch with Cascaded MZIs and EAM-Gate Array.

Yusuke Muranaka, Tatsushi Nakahara, Salah Ibrahim, Takuro Fujii, Toru Segawa, Toshikazu Hashimoto, Ryo Takahashi

Proceedings of the European Conference on Optical Communication, 2017

2016

Integrated Photonic Devices and Applications for 100GbE-and-Beyond Datacom.

Yoshiyuki Doi, Takaharu Ohyama, Toshihide Yoshimatsu, Tetsuichiro Ohno, Yasuhiko Nakanishi, Shunichi Soma, Hiroshi Yamazaki, Manabu Oguma, Toshikazu Hashimoto, Hiroaki Sanjoh

IEICE Trans. Electron., 2016

In-band OSNR monitors comprising programmable delay line interferometer integrated with wavelength selective switch by spatial and planar optical circuit.

Mitsumasa Nakajima, Naru Nemoto, Keita Yamaguchi, Joji Yamaguchi, Kenya Suzuki, Toshikazu Hashimoto

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2016

56-Gbit/s 40-km optical-amplifier-less transmission with NRZ format using high-speed avalanche photodiodes.

Masahiro Nada, Takuya Hoshi, Shigeru Kanazawa, Toshikazu Hashimoto, Hideaki Matsuzaki

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2016

2015

Generation of 448-Gbps OTDM-PDM-16QAM signal with an integrated modulator using orthogonal CSRZ pulses.

Hiroshi Yamazaki, Takashi Goh, Toshikazu Hashimoto, Akihide Sano, Yutaka Miyamoto

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015

Identification of loss factors by evaluating backscattered modal loss ratio obtained with 1-µm-band mode-detection OTDR.

Atsushi Nakamura, Keiji Okamoto, Yusuke Koshikiya, Tetsuya Manabe, Manabu Oguma, Toshikazu Hashimoto, Mikitaka Itoh

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015

High-linearity avalanche photodiode for 40-km transmission with 28-Gbaud PAM4.

Masahiro Nada, Shigeru Kanazawa, Hiroshi Yamazaki, Yasuhiko Nakanishi, Wataru Kobayashi, Yoshiyuki Doi, Takaharu Ohyama, Tetsuichiro Ohno, Kiyoto Takahata, Toshikazu Hashimoto, Hideaki Matsuzaki

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015

Optical Nyquist-filtering multi/demultiplexer with PLC for 1-Tb/s class super-channel transceiver.

Takashi Goh, Mikitaka Itoh, Hiroshi Yamazaki, Takashi Saida, Toshikazu Hashimoto

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015

160-Gbps Nyquist PAM4 transmitter using a digital-preprocessed analog-multiplexed DAC.

Hiroshi Yamazaki, Munehiko Nagatani, Shigeru Kanazawa, Hideyuki Nosaka, Toshikazu Hashimoto, Akihide Sano, Yutaka Miyamoto

Proceedings of the European Conference on Optical Communication, 2015

2014

400-G coherent receiver using silica-based heterogeneously-integrated PLC with newly developed waveplate type PBS.

Yu Kurata, Yasuaki Hashizume, Shinichi Aozasa, Mikitaka Itoh, Toshikazu Hashimoto, Hiromasa Tanobe, Yasuhiko Nakanishi, Eiji Yoshida, Hiroyuki Fukuyama, Hiroshi Yamazaki, Takashi Goh, Haruki Yokoyama, Yoshifumi Muramoto

Proceedings of the European Conference on Optical Communication, 2014

2010

Compact and Athermal DQPSK Demodulator with Silica-Based Planar Lightwave Circuit.

Yusuke Nasu, Yohei Sakamaki, Kuninori Hattori, Shin Kamei, Toshikazu Hashimoto, Takashi Saida, Hiroshi Takahashi, Yasuyuki Inoue

IEICE Trans. Electron., 2010

Reduction of phase-difference deviation in 90° optical hybrid over wide wavelength range.

Yohei Sakamaki, Yusuke Nasu, Toshikazu Hashimoto, Kuninori Hattori, Takashi Saida, Hiroshi Takahashi

IEICE Electron. Express, 2010

2007

Loss reduction of silica-based 8 × 8 optical matrix switch by optimizing waveguide crossings using WFM method.

Yohei Sakamaki, Shunichi Sohma, Takashi Saida, Toshikazu Hashimoto, Hiroshi Takahashi, Tomohiro Shibata

IEICE Electron. Express, 2007