Katsuyuki Utaka

Publication Activity (10 Years)

Years Active: 2005-2024
Publications (10 Years): 10

Top Topics

Refractive Index

Top Venues

Publications

Atsushi Matsumoto, Ryota Yabuki, Shinya Nakajima, Toshimasa Umezawa, Siim Heinsalu, Yuichi Matsushima, Koichi Akahane, Naokatsu Yamamoto, Katsuyuki Utaka
Low Threshold and 10kHz-Class Narrow Linewidth 1.55 µm-Band Quantum Dot Laser Diode on InP(311)B Substrate. OFC (2024)
Hirotaka Oshima, Takashi Kan, Hideaki Tanaka, Hidenori Takahashi, Katsuyuki Utaka, Masatoshi Suzuki
Low Loss Fan-Out Structure for Multimode Waveguide-Based Reservoir Computing. PSC (2023)
Ryota Yabuki, Atsushi Matsumoto, Ryumi Katsuhara, Siim Heinsalu, Koichi Akahane, Yuichi Matsushima, Hiroshi Ishikawa, Katsuyuki Utaka
Temperature-Insensitive pulse and 120℃ CW Operation of 1550nm-Band p-doped InAs/InGaAlAs Quantum Dot Lasers on InP(311)B Substrate. OFC (2023)
Siim Heinsalu, Katsuyuki Utaka
Design and Experiment of Silicon Racetrack-Loop Multi-Mode Waveguide Structure with Low-Loss and Adjustable Couplings for Compact Reservoir Computing Device. PSC (2023)
Ryo Kuwata, Siim Heinsalu, Yuichi Matsushima, Hiroshi Ishikawa, Katsuyuki Utaka
Low-Power Switching of Polymer Mach-Zhender Type Optical Switch with 45° Mirror for Vertical Interconnection. PSC (2023)
Ryo Kuwata, Qin Su, Hirotaka Oshima, Yuichi Matsushima, Hiroshi Ishikawa, Katsuyuki Utaka
Low-loss optical coupling between polymer single-mode waveguide and single-mode fiber using 45° mirror. OECC/PSC (2022)
Siim Heinsalu, Katsuyuki Utaka
Sensitivity Improvement of Multi-Slot Subwavelength Bragg Grating Refractive Index Sensors by Increasing the Waveguide Height or Suspending the Sensor. Sensors 22 (11) (2022)
Siim Heinsalu, Yuichi Matsushima, Hiroshi Ishikawa, Katsuyuki Utaka
Optimization of suspended ladder BG silicon sensors for high wavelength or amplitude sensitivity. IEEE SENSORS (2021)
Siim Heinsalu, Anna Kawano, Yuji Isogai, Yuichi Matsushima, Hiroshi Ishikawa, Katsuyuki Utaka
Sensitivity improvement for silicon MS-SW BG sensors by waveguide height increase or by waveguide suspension with supporting shape modification. OFC (2021)
Kana Shimizu, Tomohiro Shirai, Yuichi Matsushima, Hiroshi Ishikawa, Katsuyuki Utaka
Simultaneous High-speed and Polarization-Independent Switching Operation of 2x2 Silicon Mach-Zehnder-Type Optical Switch. PSC (2018)
H. Kouketsu, Shoko Kawasaki, Noriaki Koyama, Aki Takei, Takafumi Taniguchi, Yuichi Matsushima, Katsuyuki Utaka
High-speed and compact non-blocking 8×8 InAlGaAs/InAlAs Mach-Zehnder-type optical switch fabric. OFC (2014)
Zhigang Wu, Katsuyuki Utaka
Study on Tapered Multimode Interference-Based Coherent Lightwave Combiners. IEICE Trans. Electron. (5) (2005)
Shingo Kumai, Tomohiro Ishikawa, Atsuki Okazaki, Katsuyuki Utaka, Hidetaka Amanai, Kaori Kurihara, Kenji Shimoyama
High-speed optical switching of InAlGaAs/InAlAs multi-mode interference photonic switch with partial index-modulation region (MIPS-P). IEICE Electron. Express 2 (23) (2005)