Katsuyuki Utaka

13 papers Misc 4Journal 3Unranked 6
YearRankTypeTitle / Venue / Authors
2024 — conf
Low Threshold and 10kHz-Class Narrow Linewidth 1.55 µm-Band Quantum Dot Laser Diode on InP(311)B Substrate.
OFC
Atsushi Matsumoto, Ryota Yabuki, Shinya Nakajima, Toshimasa Umezawa, Siim Heinsalu, Yuichi Matsushima, Koichi Akahane, Naokatsu Yamamoto, Katsuyuki Utaka
2023 Misc conf
Design and Experiment of Silicon Racetrack-Loop Multi-Mode Waveguide Structure with Low-Loss and Adjustable Couplings for Compact Reservoir Computing Device.
PSC
Siim Heinsalu, Katsuyuki Utaka
2023 Misc conf
Low Loss Fan-Out Structure for Multimode Waveguide-Based Reservoir Computing.
PSC
Hirotaka Oshima, Takashi Kan, Hideaki Tanaka, Hidenori Takahashi, Katsuyuki Utaka, Masatoshi Suzuki
2023 Misc conf
Low-Power Switching of Polymer Mach-Zhender Type Optical Switch with 45° Mirror for Vertical Interconnection.
PSC
Ryo Kuwata, Siim Heinsalu, Yuichi Matsushima, Hiroshi Ishikawa, Katsuyuki Utaka
2023 — conf
Temperature-Insensitive pulse and 120℃ CW Operation of 1550nm-Band p-doped InAs/InGaAlAs Quantum Dot Lasers on InP(311)B Substrate.
OFC
Ryota Yabuki, Atsushi Matsumoto, Ryumi Katsuhara, Siim Heinsalu, Koichi Akahane, Yuichi Matsushima, Hiroshi Ishikawa, Katsuyuki Utaka
2022 — conf
Low-loss optical coupling between polymer single-mode waveguide and single-mode fiber using 45° mirror.
OECC/PSC
Ryo Kuwata, Qin Su, Hirotaka Oshima, Yuichi Matsushima, Hiroshi Ishikawa, Katsuyuki Utaka
2022 J jnl
Sensitivity Improvement of Multi-Slot Subwavelength Bragg Grating Refractive Index Sensors by Increasing the Waveguide Height or Suspending the Sensor.
Sensors
Siim Heinsalu, Katsuyuki Utaka
2021 — conf
Optimization of suspended ladder BG silicon sensors for high wavelength or amplitude sensitivity.
IEEE SENSORS
Siim Heinsalu, Yuichi Matsushima, Hiroshi Ishikawa, Katsuyuki Utaka
2021 — conf
Sensitivity improvement for silicon MS-SW BG sensors by waveguide height increase or by waveguide suspension with supporting shape modification.
OFC
Siim Heinsalu, Anna Kawano, Yuji Isogai, Yuichi Matsushima, Hiroshi Ishikawa, Katsuyuki Utaka
2018 Misc conf
Simultaneous High-speed and Polarization-Independent Switching Operation of 2x2 Silicon Mach-Zehnder-Type Optical Switch.
PSC
Kana Shimizu, Tomohiro Shirai, Yuichi Matsushima, Hiroshi Ishikawa, Katsuyuki Utaka
2014 — conf
High-speed and compact non-blocking 8×8 InAlGaAs/InAlAs Mach-Zehnder-type optical switch fabric.
OFC
Hiroki Kouketsu, Shoko Kawasaki, Noriaki Koyama, Aki Takei, Takafumi Taniguchi, Yuichi Matsushima, Katsuyuki Utaka
2005 J jnl
High-speed optical switching of InAlGaAs/InAlAs multi-mode interference photonic switch with partial index-modulation region (MIPS-P).
IEICE Electron. Express
Shingo Kumai, Tomohiro Ishikawa, Atsuki Okazaki, Katsuyuki Utaka, Hidetaka Amanai, Kaori Kurihara, Kenji Shimoyama
2005 J jnl
Study on Tapered Multimode Interference-Based Coherent Lightwave Combiners.
IEICE Trans. Electron.
Zhigang Wu, Katsuyuki Utaka