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Takuya Okimoto

InP/Si Heterogeneously Integrated Tunable Laser by Utilizing Chip-on-Wafer Bonding Method
2024 · Takuo Hiratani, Naoki Fujiwara, et al. · Journal of Lightwave Technology · 14
Proposal and numerical study on capsule-shaped nanometallic semiconductor lasers
2014 · Baifu Zhang, Takuya Okimoto, et al. · Japanese Journal of Applied Physics · 13
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InP-Based Butt-Joint Coupled Waveguide Photodiodes Integrated With Various Functions for 100 GBaud Coherent Detection
2021 · Takuya Okimoto, Hideki Yagi, et al. · IEEE Journal of Selected Topics in Quantum Electronics · 12
Ultrasmall Power Splitters With Triangular Lattice Mosaic Patterns Designed by Bayesian DBS Method
2023 · Takeshi Fujisawa, Takuya Mitarai, et al. · IEEE Photonics Technology Letters · 9
106-Gb/s Waveguide AlInAs/GaInAs Avalanche Photodiode with Butt-joint Coupling Structure
2022 · Takuya Okimoto, Ken Ashizawa, et al. · Optical Fiber Communication Conference · 9
InP-Based Photodetectors Monolithically Integrated with 90° Hybrid toward Over 400Gb/s Coherent Transmission Systems
2019 · Hideki YAGI, Takuya OKIMOTO, et al. · IEICE Transactions on Electronics · 9
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Qfactor improvement by capsule-shaped metallic cavity structure for subwavelength lasers
2015 · Baifu Zhang, Koh Chieda, et al. · physica status solidi (a) · 8
High Responsivity and Reliability of InP-Based Waveguide Avalanche Photodiodes with Butt-Joint Coupled Structure
2023 · Takuya Okimoto, Ken Ashizawa, et al. · Journal of Lightwave Technology · 6
Bayesian design of mosaic-based mode multiplexers for various wavelength bands
2023 · Takeshi Fujisawa, Takuya Mitarai, et al. · Optics Express · 5
Small responsivity imbalance of InP-based p-i-n photodiode array monolithically integrated with 90° hybrid using asymmetric waveguide phase shifter for coherent detection
2016 · T. Okimoto, H. Yagi, et al. · Compound Semiconductor Week (CSW) · 5
Silicon Photonic Coherent WDM Transmitter Employing Cascaded Micro-Ring Modulators on a Mach–Zehnder Interferometer
2025 · Shuntaro Maeda, Takahiro Suganuma, et al. · Journal of Lightwave Technology · 4
Scalable Multi-Band Narrow Linewidth Operation by a Single-Chip Tunable Laser with InP/Si Heterogeneous Integration
2025 · Takuo Hiratani, Kento Komatsu, et al. · European Conference on Optical Communication · 4
A Shunt-Feedback TIA with Common-Base Variable Gain Input Stage for 128-GBaud Coherent Communication
2023 · Seiji Kumagai, Yoshiyuki Sugimoto, et al. · IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium (BCICTS) · 4
80-GHz Bandwidth and High Responsivity of InP Coherent Receiver PIC with Butt-joint waveguide PDs
2023 · Takuya Okimoto, Hideki Yagi, et al. · Optical Fiber Communication Conference · 4
Compact WDM Coherent Transmitter using Silicon Micro-Ring Modulators
2025 · Shuntaro Maeda, Takahiro Suganuma, et al. · Optical Fiber Communication Conference · 3
InP-based Optical Devices Integrated on Silicon Photonic Circuits
2024 · Takuya Okimoto, Naoki Fujiwara, et al. · Optical Fiber Communication Conference · 3
Compact passive waveguides using mosaic-based device with triangular lattice photonic crystal-like structure
2023 · Takuya Mitarai, Takeshi Fujisawa, et al. · International Conference on Solid State Devices and Materials (SSDM) · 3
Compact Power Splitters with Mosaic-based Structure Designed by Bayesian Direct-binary-search Method
2022 · Takuya Mitarai, Takeshi Fujisawa, et al. · OptoElectronics and Communications Conference and International Conference on Photonics in Switching and Computing (OECC/PSC) · 3
High Optical Output Power and High-responsivity IC-TROSA for 800 Gbps applications
2021 · Munetaka Kurokawa, Kenichi Nakayama, et al. · European Conference on Optical Communication · 3
InP-based PIC integrated with Butt-joint Coupled Waveguide p-i-n PDs for 100GBaud Coherent Networks
2021 · Takuya Okimoto, Hideki Yagi, et al. · Optical Fiber Communication Conference · 3
Ultrasmall Four-Channel Multiplexer Designed by Bayesian Direct Binary Search Method
2026 · Yusuke Sawada, Takeshi Fujisawa, et al. · IEEE Photonics Technology Letters · 2
InP-based and III-V/Si Hybrid Photodetectors
2025 · Takuya Okimoto, Kouichiro Yamazaki, et al. · OptoElectronics and Communications Conference and International Conference on Photonics in Switching and Computing (OECC/PSC) · 2
Various Types of Hybrid SOAs Using InP/SOI Chip-on-Wafer Bonding Technology Towards Large Scale Photonic Integrated Circuits
2025 · Takehiko Kikuchii, Hidenari Fujikata, et al. · OptoElectronics and Communications Conference and International Conference on Photonics in Switching and Computing (OECC/PSC) · 2
Compact Four-Channel Wavelength Multiplexer with Two-Stage Mosaic-Based Waveguides Designed by Bayesian Direct Binary Search
2024 · Yusuke Sawada, Takeshi Fujisawa, et al. · Opto-Electronics and Communications Conference (OECC) · 2
High tolerant design of athermal Si wavelength filter using Mach–Zehnder interferometer
2024 · Takanori Sato, Kengo Maeda, et al. · Japanese Journal of Applied Physics · 2
Works count: 52
Citation count: 143
H-index: 7
I10-index: 3
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