Ken Tanizawa

45 papers B 1Journal 7Unranked 37
YearRankTypeTitle / Venue / Authors
2025 — conf
Secure FSO Transmission System Based on Y-00 Protocol Using Optical Decryption Incorporated into Coherent Receiver.
ECOC
Ken Tanizawa, Fumio Futami
2024 J jnl
A symmetric silicon microring resonator optical crossbar array for accelerated inference and training in deep learning.
CoRR
Rui Tang, Shuhei Ohno, Ken Tanizawa, Kazuhiro Ikeda, Makoto Okano, Kasidit Toprasertpong, Shinichi Takagi, Mitsuru Takenaka
2024 — conf
Inference and training in deep learning using a symmetric optical crossbar array.
OFC
Rui Tang, Shuhei Ohno, Ken Tanizawa, Kazuhiro Ikeda, Makoto Okano, Kasidit Toprasertpong, Shinichi Takagi, Mitsuru Takenaka
2024 — conf
Secure FSO Transmission with Quantum Deliberate Signal Randomization on the Y-00 Protocol under Fog Conditions.
OFC
Fumio Futami, Ken Tanizawa, Kentaro Kato, Yuichiro Hara, Michikazu Hattori, Abdelmoula Bekkali, Yukihiko Suga
2023 — conf
Nonlinear Tolerant Conjugated RoF System Secured by Physical Layer Encryption with Deliberate Signal Randomization.
OFC
Tatsuki Ishijima, Shuhei Otsuka, Shun Harada, Takahide Sakamoto, Ken Tanizawa, Fumio Futami
2023 — conf
Real-time 50-Gbit/s Spatially Multiplexed Quantum Random Number Generator Based on Vacuum Fluctuation.
OFC
Ken Tanizawa, Kentaro Kato, Fumio Futami
2023 — conf
Secure Unrepeated Fiber Transmission with Quantum Deliberate Signal Randomization on Y-00 Protocol.
OFC
Fumio Futami, Ken Tanizawa, Kentaro Kato, Yuki Kawaguchi, Shin Sato
2022 — conf
Analog IM/DD IFoF Transmission of OFDM Quantum-Noise Randomized QAM Cipher for Wireless Signal Encryption.
OECC/PSC
Ken Tanizawa, Fumio Futami
2021 — conf
Photonic-Assisted Microwave OFDM Quantum-Noise Randomized Cipher Generation via IM/DD IFoF Transmission.
OFC
Ken Tanizawa, Fumio Futami
2020 — conf
Photonic Generation of Quantum Noise Assisted Cipher at Microwave Frequencies for Secure Wireless Links.
OFC
Ken Tanizawa, Fumio Futami
2020 — conf
Security-Enhanced 10, 118-km Single-Channel 40-Gbit/s Transmission Using PSK Y-00 Quantum Stream Cipher.
ECOC
Ken Tanizawa, Fumio Futami
2019 — conf
48-Gbit/s DP PSK Y-00 Quantum Stream Cipher Based on QPSK Data Modulation.
OECC/PSC
Ken Tanizawa, Fumio Futami
2019 — conf
Digital Coherent 20-Gbit/s DP-PSK Y-00 Quantum Stream Cipher Transmission over 800-km SSMF.
OFC
Ken Tanizawa, Fumio Futami
2018 — conf
Dynamic Routing of Y-00 Quantum Stream Cipher in Field-Deployed Dynamic Optical Path Network.
OFC
Fumio Futami, Takayuki Kurosu, Ken Tanizawa, Kentaro Kato, Satoshi Suda, Shu Namiki
2018 — conf
In-line Optical Amplification for Silicon Photonics Platform by Flip-Chip Bonded InP-SOAs.
OFC
Takeshi Matsumoto, Teruo Kurahashi, Ryotaro Konoike, Ken Tanizawa, Keijiro Suzuki, Ayahito Uetake, Kazumasa Takabayashi, Kazuhiro Ikeda, Hitoshi Kawashima, Suguru Akiyama, Shigeaki Sekiguchi
2018 — conf
Next-Generation ROADM Employing Bandwidth-Adaptive Silicon-Photonic Filters for Flexible Drop Operation.
OFC
Yojiro Mori, Koh Ueda, Keijiro Suzuki, Hiroyuki Matsuura, Ken Tanizawa, Kazuhiro Ikeda, Shu Namiki, Hitoshi Kawashiwa, Ken-ichi Sato
2018 — conf
PSK Y-00 Quantum Stream Cipher with 2
ECOC
Ken Tanizawa, Fumio Futami
2018 — conf
Reconfigurable 3-Channel All-Optical MIMO Circuit on Silicon Based on Multi-Plane Light Conversion.
OFC
Rui Tang, Takuo Tanemura, Samir Ghosh, Keijiro Suzuki, Ken Tanizawa, Kazuhiro Ikeda, Hitoshi Kawashima, Yoshiaki Nakano
2018 J jnl
Silicon photonics based 1 × 2 wavelength selective switch using fold-back arrayed-waveguide gratings.
IEICE Electron. Express
Fumi Nakamura, Hideaki Asakura, Keijiro Suzuki, Ken Tanizawa, Minoru Ohtsuka, Nobuyuki Yokoyama, Kazuyuki Matsumaro, Miyoshi Seki, Keiji Koshino, Kazuhiro Ikeda, Shu Namiki, Hitoshi Kawashima, Hiroyuki Tsuda
2017 — conf
2.5-dB loss, 100-nm Operating Bandwidth, and Low Power Consumption Strictly-Non-Blocking 8 × 8 Si Switch.
ECOC
Keijiro Suzuki, Ken Tanizawa, Satoshi Suda, Hiroyuki Matsuura, Kazuhiro Ikeda, Shu Namiki, Hitoshi Kawashima
2017 — conf
Accelerating switching speed of thermo-optic MZI silicon-photonic switches with "turbo pulse" in PWM control.
OFC
Hiroyuki Matsuura, Satoshi Suda, Ken Tanizawa, Keijiro Suzuki, Kazuhiro Ikeda, Hitoshi Kawashima, Shu Namiki
2017 — conf
Fully integrated non-duplicate polarization-diversity 8 × 8 Si-wire PILOSS switch.
OFC
Ken Tanizawa, Keijiro Suzuki, Kazuhiro Ikeda, Shu Namiki, Hitoshi Kawashima
2017 J jnl
Polarization diversity circuit based on silica waveguides and photonic crystal waveplates for a 4×4 silicon optical switch.
IEICE Electron. Express
Koki Sugiyama, Takafumi Chiba, Ken Tanizawa, Keijiro Suzuki, Takayuki Kawashima, Shojiro Kawakami, Kazuhiro Ikeda, Hitoshi Kawashima, Hiroshi Takahashi, Hiroyuki Tsuda
2017 — conf
Silicon-photonics polarization-insensitive broadband strictly-non-blocking 8 × 8 blade switch.
OFC
Keijiro Suzuki, Ken Tanizawa, Satoshi Suda, Hiroyuki Matsuura, Takashi Inoue, Kazuhiro Ikeda, Shu Namiki, Hitoshi Kawashima
2016 — conf
In-line optical amplification for Si waveguides on 1×8 splitter and selector by flip-chip bonded InP-SOAs.
OFC
Takeshi Matsumoto, Teruo Kurahashi, Ken Tanizawa, Keijiro Suzuki, Ayahito Uetake, Kazumasa Takabayashi, Kazuhiro Ikeda, Hitoshi Kawashima, Suguru Akiyama
2016 — conf
Multi-port optical switch based on silicon photonics.
OFC
Hitoshi Kawashima, Keijiro Suzuki, Ken Tanizawa, Satoshi Suda, Guangwei Cong, Hiroyuki Matsuura, Shu Namiki, Kazuhiro Ikeda
2016 — conf
Novel PILOSS port assignment for compact polarization-diversity Si-wire optical switch.
OFC
Ken Tanizawa, Keijiro Suzuki, Kazuhiro Ikeda, Shu Namiki, Hitoshi Kawashima
2015 — conf
32×32 strictly non-blocking Si-wire optical switch on ultra-small die of 11×25 mm
OFC
Ken Tanizawa, Keijiro Suzuki, Munehiro Toyama, Minoru Ohtsuka, Nobuyuki Yokoyama, Kazuyuki Matsumaro, Miyoshi Seki, Keiji Koshino, Toshio Sugaya, Satoshi Suda, Guangwei Cong, Toshio Kimura, Kazuhiro Ikeda, Shu Namiki, Hitoshi Kawashima
2015 — conf
Dynamic parametric dispersion compensation using FPGA pump controller and dispersion monitor.
OFC
Ken Tanizawa, Hiroyuki Matsuura, Kensuke Ogawa, Toshimitsu Kaneko, Eiichi Banno, Katsumi Uesaka, Shigehiro Takasaka, Hidenori Iwai, Kazuya Ota, Haruhiko Kuwatsuka, Yoichi Oikawa, Takeshi Yagi, Hajime Shoji, Shu Namiki
2015 J jnl
Evaluation of the phase error in Si-wire arrayed-waveguide gratings fabricated by ArF-immersion photolithography.
IEICE Electron. Express
Kyosuke Muramatsu, Hideaki Asakura, Keijiro Suzuki, Ken Tanizawa, Munehiro Toyama, Minoru Ohtsuka, Nobuyuki Yokoyama, Kazuyuki Matsumaro, Miyoshi Seki, Keiji Koshino, Kazuhiro Ikeda, Shu Namiki, Hitoshi Kawashima, Hiroyuki Tsuda
2015 — conf
In-band OSNR monitor based on 3 × 3 Si-wire MMI coupler.
ECOC
Ken Tanizawa, Keisuke Sorimoto, Keijiro Suzuki, Kazuhiro Ikeda, Shu Namiki, Hitoshi Kawashima
2015 — conf
Power-efficient gray-scale control of silicon thermo-optic phase shifters by pulse width modulation using monolithically integrated MOSFET.
OFC
Guangwei Cong, Takashi Matsukawa, Keijiro Suzuki, Ken Tanizawa, Sang-Hun Kim, Tadashi Chiba, Hirofumi Tadokoro, Masashi Yanagihara, Morifumi Ohno, Haruhiko Kuwatsuka, Yasushi Igarashi, Meishoku Masahara, Hiroshi Ishikawa, Kazuhiro Ikeda, Shu Namiki, Hitoshi Kawashima
2014 — conf
All-optical Nyquist filtering for elastic OTDM signals and their spectral defragmentation for inter-datacenter networks.
ECOC
Hung Nguyen Tan, Takashi Inoue, Ken Tanizawa, Takayuki Kurosu, Shu Namiki
2014 — conf
Counter-dithering pump scheme for cascaded degenerate FWM based wavelength converter.
OFC
Hung Nguyen Tan, Takashi Inoue, Ken Tanizawa, Stephane Petit, Yoichi Oikawa, Shigehiro Takasaka, Takeshi Yagi, Shu Namiki
2014 — conf
First demonstration of ultra-low-energy hierarchical multi-granular optical path network dynamically controlled through NSI-CS for video related applications.
ECOC
Junya Kurumida, Kiyo Ishii, Atsuko Takefusa, Yusuke Tanimura, Shigeyuki Yanagimachi, Hitoshi Takeshita, Akio Tajima, Kiyoshi Fukuchi, H. Honma, W. Odashima, Hiroshi Onaka, Ken Tanizawa, Keijiro Suzuki, Satoshi Suda, Kazuhiro Ikeda, H. Kawashima, H. Uetsuka, Hiroyuki Matsuura, Haruhiko Kuwatsuka, Ken-ichi Sato, Tomohiro Kudoh, Shu Namiki
2014 J jnl
Multiport optical switches integrated on Si photonics platform.
IEICE Electron. Express
Keijiro Suzuki, Guangwei Cong, Ken Tanizawa, Sang-Hun Kim, Kazuhiro Ikeda, Shu Namiki, Hitoshi Kawashima
2014 — conf
Robust design of 3-dB directional coupler with weak gap sensitivity for silicon wire waveguide.
OFC
Guangwei Cong, Keijiro Suzuki, Sang-Hun Kim, Ken Tanizawa, Shu Namiki, Hitoshi Kawashima
2013 — conf
Demonstration of parametric tunable dispersion compensation for WDM channels with mixed OOK and QPSK formats.
OFC/NFOEC
Takashi Inoue, Ken Tanizawa, Shu Namiki
2013 — conf
Fast wavelength switching of fully heater-tuned CSG-DR lasers.
OFC/NFOEC
Hiroyuki Matsuura, Toshimitsu Kaneko, Ken Tanizawa, Eiichi Banno, Katsumi Uesaka, Haruhiko Kuwatsuka, Shu Namiki, Hajime Shoji
2013 — conf
Practical issues of the tunable dispersion compensation using parametric wavelength conversion.
OFC/NFOEC
Ken Tanizawa
2013 — conf
Stable clock recovery and channel identification in OTDM realized by in-band clock distribution based on pulse position modulation.
OFC/NFOEC
Takayuki Kurosu, Ken Tanizawa, Dexiang Wang, Sze Yun Set, Shu Namiki
2009 J jnl
Search Control Algorithm Based on Random Step Size Hill-Climbing Method for Adaptive PMD Compensation.
IEICE Trans. Commun.
Ken Tanizawa, Akira Hirose
2007 — conf
Error Reduction in Holographic Movies Using a Hybrid Learning Method in Coherent Neural Networks.
ICANN (1)
Chor Shen Tay, Ken Tanizawa, Akira Hirose
2006 J jnl
Efficient generation of holographic movies with frame interpolation using a coherent neural network.
IEICE Electron. Express
Akira Hirose, Tomoaki Higo, Ken Tanizawa
2006 B conf
Holographic Three-Dimensional Movie Generation with Frame Interpolation Using Coherent Neural Networks.
IJCNN
Akira Hirose, Tomoaki Higo, Ken Tanizawa