Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
WPT |
2024-03-15 16:15 |
Kyoto |
Kyoto-Univ. (Uji campus) (Primary: On-site, Secondary: Online) |
A Beamforming Antenna using Analog Phase Shifter for 5.7GHz RF Wireless Power Transfer System Shota Futamata, Norimasa Nakashima (FIT) WPT2023-59 |
This paper persents an attempt to realize a beamforming antenna using a reflective phase shifter for 5.7GHz wireless pow... [more] |
WPT2023-59 pp.117-122 |
EMT, MWP, PN, IEE-EMT [detail] |
2021-01-21 13:25 |
Online |
Online |
Fabrication and Measurement of Optical Multi-mode Interference Devices Using Ti-diffused LiNbO3 Waveguides and Consideration on Voltage Control of Device Properties Anna Hirai, Yuichi Matsumoto (Univ. of Hyogo), Takanori Sato (Hokkaido Univ.), Tadashi Kawai, Akira Enokihara (Univ. of Hyogo), Shinya Nakajima, Naokatsu Yamamoto (NICT) PN2020-34 EMT2020-52 MWP2020-35 |
Optical couplers based on Multi-mode interference (MMI) of Ti-diffused LiNbO3 (Ti:LN) waveguides were analyzed by the be... [more] |
PN2020-34 EMT2020-52 MWP2020-35 pp.28-31 |
LQE, OPE, CPM, EMD, R |
2019-08-22 13:30 |
Miyagi |
|
[Invited Talk]
Progress of InP-based Monolithically Integrated Photonic Devices and Future Prospect Towards Beyond Tbps Era Hideki Yagi (SEI) R2019-20 EMD2019-18 CPM2019-19 OPE2019-47 LQE2019-25 |
InP-based photonic devices have yielded the monolithic integration of
various functionalities in addition to miniaturi... [more] |
R2019-20 EMD2019-18 CPM2019-19 OPE2019-47 LQE2019-25 pp.5-9 |
ICD, CPSY, CAS |
2018-12-23 16:10 |
Okinawa |
|
Comparison between Quadrature-modulation EPWM transmitters with a 90° and 180° hybrid in physical models Tomoaki Morita, Yohtraro Umeda (Tokyo Univ. of Science) CAS2018-115 ICD2018-99 CPSY2018-81 |
Quadrature-modulation envelope-pulse-width-modulation (EPWM) transmitter with a 180° (180HYB system) or 90° hybrid (90HY... [more] |
CAS2018-115 ICD2018-99 CPSY2018-81 pp.153-158 |
LQE, OPE, SIPH |
2018-12-06 10:15 |
Tokyo |
Keio University |
[Encouragement Talk]
Wide bandwidth and high responsivity of InP-based waveguide photodiodes for over 400 Gbps coherent transmission systems Takuya Okimoto (SEDI), Hideki Yagi (SEI), Ryuji Masuyama, Kenji Sakurai, Yoshifumi Nishimoto, Kazuhiko Horino, Takayuki Watanabe (SEDI), Mitsuru Ekawa (SEI), Yoshihiro Yoneda (SEDI) OPE2018-97 LQE2018-107 SIPH2018-13 |
For high speed coherent transmission system over 400 Gbps, photodetectors for coherent receivers with both the wide band... [more] |
OPE2018-97 LQE2018-107 SIPH2018-13 pp.1-5 |
LQE |
2018-07-12 15:45 |
Hokkaido |
|
[Invited Talk]
What will be a compelling technology for beyond-400 Gbps systems; Devices vs. Packaging
-- Progress of InP-based Coherent Receivers and Future Prospect of Photonic Integrated Circuits -- Hideki Yagi, Naoko Inoue (SEI), Takuya Okimoto (SEDI), Takehiko Kikuchi (SEI) LQE2018-27 |
Currently, digital coherent transmission using spectrally-efficient modulation formats has been widely applied to not on... [more] |
LQE2018-27 pp.29-32 |
MW, EMCJ, EST, IEE-EMC [detail] |
2017-10-20 10:25 |
Akita |
Yupopo |
A Quadrature-modulation EPWM Transmitter That Uses Co-phase Sine Wave Carriers for I/Q Channel and a 90° Hybrid as a Signal Combiner Tomoaki Morita, Ryo Sakai, Yohtaro Umeda (Tokyo Univ. of Science), Yusuke Kozawa (Ibaraki Univ.) EMCJ2017-45 MW2017-97 EST2017-60 |
Quadrature-modulation (QM) envelope-pulse-width modulation (EPWM) transmitter with a 180° hybrid as a power combiner has... [more] |
EMCJ2017-45 MW2017-97 EST2017-60 pp.105-110 |
R, EMD, CPM, LQE, OPE |
2017-09-01 15:00 |
Aomori |
|
Wide Bandwidth and High Responsivity Operation of InP-based Photodetector Monolithically Integrated with 90° Hybrid to Realize Over 400 Gbps Coherent Transmission Systems Takuya Okimoto (SEDI), Hideki Yagi (SEI), Ryuji Masuyama, Kenji Sakurai, Yoshifumi Nishimoto, Kazuhiko Horino, Takayuki Watanabe (SEDI), Mitsuru Ekawa (SEI), Yoshihiro Yoneda (SEDI) R2017-40 EMD2017-34 CPM2017-55 OPE2017-64 LQE2017-37 |
In order to realize over 400 Gbps coherent transmission systems, wide bandwidth and high responsivity operation of integ... [more] |
R2017-40 EMD2017-34 CPM2017-55 OPE2017-64 LQE2017-37 pp.73-76 |
LQE |
2016-12-16 14:30 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
[Invited Talk]
InP-Based Monolithically Integrated Photonic Devices
-- Current Status and Future Prospect -- Hideki Yagi, Toshimitsu Kaneko, Hiroyuki Yoshinaga, Hajime Shoji (SEI) LQE2016-103 |
InP-based photonic devices have yielded monolithic integration of various functionalities in addition to miniaturization... [more] |
LQE2016-103 pp.33-36 |
LQE, OPE, EMD, R, CPM |
2016-08-26 13:45 |
Hokkaido |
|
Small Responsivity Imbalance of InP-Based Photodetector Monolithically Integrated with 90°Hybrid for Compact Coherent Receivers Hideki Yagi (SEI), Takuya Okimoto, Ryuji Masuyama, Kenji Sakurai, Yoshifumi Nishimoto (Sumitomo Electric Device Innovations), Takehiko Kikuchi (SEI), Kazuhiko Horino, Takayuki Watanabe (Sumitomo Electric Device Innovations), Mitsuru Ekawa, Masaru Takechi (SEI), Yoshihiro Yoneda (Sumitomo Electric Device Innovations) R2016-40 EMD2016-44 CPM2016-53 OPE2016-74 LQE2016-49 |
Since compact and low power dissipation coherent transceivers for metro-networks involve a miniaturization and low costs... [more] |
R2016-40 EMD2016-44 CPM2016-53 OPE2016-74 LQE2016-49 pp.105-108 |
EMCJ |
2013-11-22 15:00 |
Tokyo |
Tokyo Denki Univ. |
The Performance Evaluation and Simulation by The FDTD Method of Microstrip Both Polarization Patch Antenna with A 90 degrees Hybrid Coupler Yuki Adachi, Hiroki Anzai (Tsuruoka-NCT) EMCJ2013-95 |
In fisheries currently about 20% of the entire catch is discarded without being able scratches and during recovery, may ... [more] |
EMCJ2013-95 pp.23-27 |
OPE, LQE, CPM, EMD, R |
2013-08-30 09:45 |
Hokkaido |
sun-refre Hakodate |
Compact coherent receiver using InP-based PDs integrated with 90°hybrid Masaru Takechi, Yoshihiro Tateiwa, Hideki Yagi, Yoshihiro Yoneda, Kazuhiro Yamaji, Yasushi Fujimura, Hiroshi Hara, Shoichi Ogita (SEI) R2013-48 EMD2013-54 CPM2013-73 OPE2013-77 LQE2013-47 |
A compact coherent receiver using InP-based PDs integrated with 90° hybrid is reported. The package size at 15x26x5.5 mm... [more] |
R2013-48 EMD2013-54 CPM2013-73 OPE2013-77 LQE2013-47 pp.99-102 |
LQE, OPE |
2013-06-21 14:25 |
Tokyo |
|
High Responsivity and Wide Bandwidth Operation of InP-Based pin-Photodiodes Monolithically Integrated with 90°Hybrid for 100 Gb/s Compact Coherent Receiver Hideki Yagi, Naoko Inoue, Yutaka Onishi, Ryuji Masuyama, Tomokazu Katsuyama, Takehiko Kikuchi, Yoshihiro Tateiwa, Yoshihiro Yoneda, Masaru Takechi, Hajime Shoji (SEI) OPE2013-11 LQE2013-21 |
The digital coherent transmission technology has been considered to be a promising candidate for the accomplishment of a... [more] |
OPE2013-11 LQE2013-21 pp.23-26 |
US |
2008-09-26 11:30 |
Miyagi |
|
Complex Coefficient SAW Filters for Balanced Amplifier Yasutsugu Yamashita, Tatsuya Omori, Ken-ya Hashimoto, Masatsune Yamaguchi (Chiba Univ.) US2008-43 |
This paper proposes a complex coefficient SAW filter offering the functionality same with the 90 degree hybrid coupler w... [more] |
US2008-43 pp.63-68 |