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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 99  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
PN 2024-03-15
15:50
Kagoshima
(Primary: On-site, Secondary: Online)
Iterative complex-field reconstruction of optical signals using time-domain ptychography
Masataka Kinugawa, Masayuki Matsumoto (Wakayama Univ.) PN2023-91
A number of studies have been devoted to retrieval of optical phase information by direct-detection receivers. Such dete... [more] PN2023-91
pp.121-126
MW 2024-02-29
10:55
Okayama Okayama Prefectural University
(Primary: On-site, Secondary: Online)
A Study of Digital Modulation Computation Bit Count and 1- bit BP Delta Delta-Sigma Modulation OSR for 40 -GHz Band Direct Digital RF ModulatoModulator
Kouki Nakamura, Satoshi Tsukamoto, Junhao Zhang, Yuki Fujiya, Tomoyuki Furuichi, Noriharu Suematsu (Tohoku Univ.) MW2023-176
For future Low Earth Orbit (LEO) constellation satellite communication system, a development millimeter-wave digital bea... [more] MW2023-176
pp.9-14
OCS, LQE, OPE 2023-10-19
13:50
Kochi
(Primary: On-site, Secondary: Online)
Integration of Spot-size Converters into Membrane Lasers on SiC -- Improved fiber-coupled Output Power Enabling Fiber-amplifier-free Transmission of 100-GBaud Signals --
Suguru Yamaoka, Takuma Aihara, Nikolaos-Panteleimon Diamantopoulos, Hidetaka Nishi, Takuro Fujii, Yoshiho Maeda, Hiroki Sugiyama, Tatsurou Hiraki, Koji Takeda, Toru Segawa, Shinji Matsuo (NTT) OCS2023-31 OPE2023-86 LQE2023-33
Membrane lasers on SiC provide the fastest direct modulation, but the SiC’s medium refractive index of 2.6 prevents the ... [more] OCS2023-31 OPE2023-86 LQE2023-33
pp.24-27
MW, EMCJ, EST, IEE-EMC [detail] 2023-10-20
09:00
Yamagata Yamagata University
(Primary: On-site, Secondary: Online)
Design of Required Bit Count and 1 1-bit BP Delta Delta-Sigma Modulation OSR for 40 -GHz Band DBF Direct Digital RF Transmitter
Kouki Nakamura, Satoshi Tsukamoto, Junhao Zhang, Tomoyuki Furuichi, Noriharu Suematsu (Tohoku Univ.) EMCJ2023-56 MW2023-110 EST2023-83
For future Low Earth Orbit (LEO) constellation satellite communication system, a development millimeter-wave digital bea... [more] EMCJ2023-56 MW2023-110 EST2023-83
pp.107-112
EE, IEE-SPC 2023-07-21
11:35
Hyogo
(Primary: On-site, Secondary: Online)
A Study on Power Packet Density Modulation Considering Bi-directional Power Transmission
Kento Hiwatashi, Shiu Mochiyama, Takashi Hikihara (Kyoto Univ.) EE2023-16
Power packetization has been proposed as a power transmission method for autonomous mobile systems that are disconnected... [more] EE2023-16
pp.84-89
ITS, IEE-ITS 2023-03-13
14:20
Chiba Nihon Univ., Funabashi Campus
(Primary: On-site, Secondary: Online)
A Study on Ego-vehicle Direction Estimation using Spectral Analysis on Millimeter-wave MIMO Radar
Keiji Jimi, Takeki Ogitsu (Gunma Univ.) ITS2022-79
In this paper, we discuss a method of ego-vehicle motion estimation using a millimeter-wave MIMO radar. An In-vehicle mi... [more] ITS2022-79
pp.1-5
PN 2022-11-07
16:45
Kochi
(Primary: On-site, Secondary: Online)
[Invited Talk] Underwater Visible Light Wireless Communications
Takahiro Kodama (Kagawa Univ.) PN2022-27
In this paper, we describe the technology that our organization is working on for underwater optical wireless in shallow... [more] PN2022-27
pp.32-38
OPE, OCS, LQE 2022-10-21
16:00
Ehime
(Primary: On-site, Secondary: Online)
Analysis of High-Speed Operation of Hybrid Modulation Semiconductor Lasers Using Coupled-Wave Equations
Shoki Asami, Kaori Uchiyama, Nobuhide Yokota, Hiroshi Yasaka (Tohoku Univ.) OCS2022-39 OPE2022-85 LQE2022-48
High-speed semiconductor lasers are being required to cope with the explosive increase of the traffic in data centers. T... [more] OCS2022-39 OPE2022-85 LQE2022-48
pp.116-119
MWPTHz, EST, MW, EMT, OPE, IEE-EMT [detail] 2022-07-19
15:45
Hokkaido Asahikawa Civic Culture Hall
(Primary: On-site, Secondary: Online)
Fundamental Characteristic Measurements of Electroabsorption Modulator Integrated Laser Diode for Vector Modulation
Yuki Seto (Waseda Univ.), Keizo Ingaki (NICT), Tetsuya Kawanishi (Waseda Univ.) EMT2022-28 MW2022-52 OPE2022-31 EST2022-29 MWPTHz2022-26
We measured the fundamental characteristics of an EA modulator integrated laser diode for vector modulation of light. Di... [more] EMT2022-28 MW2022-52 OPE2022-31 EST2022-29 MWPTHz2022-26
pp.99-102
PN 2022-03-02
13:00
Online Online An indoor experiment of 1m class short-reach visible optical wireless communication using seawater of the Seto Inland Sea as an underwater transmission line
Keita Tanaka, Fumiya Kobori, Tomoya Nakagawa, Momoka Masaoka, Ayumu Kariya, Tomoya Ishikawa, Shota Eguchi, Takahiro Kodama (Kagawa Univ.) PN2021-76
In this time, to simulate the underwater transmission line in the natural environment in underwater optical wireless com... [more] PN2021-76
pp.129-133
OCS, OPE, LQE 2021-11-12
15:40
Online Online [Special Invited Talk] uncooled 112Gb/s PAM4 InGaAlAs-MQW-DFB-BH laser
Kouji Nakahara, Kazuki Suga, Kaoru Okamoto, Shigenori Hayakawa, Masatoshi Arasawa, Tetsuya Nishida, Ryu Washino, Takeshi Kitatani, Masatoshi Mitaki, Hironori Sakamoto, Yasushi Sakuma, Shigehisa Tanaka (Lumentum) OCS2021-25 OPE2021-45 LQE2021-24
Directly modulated lasers that have cost effective, small footprint and low power consumption are attractive as transmis... [more] OCS2021-25 OPE2021-45 LQE2021-24
pp.20-23
EST, MW, EMCJ, IEE-EMC [detail] 2021-10-07
16:10
Online Online Evaluation of stimulation conditions of tDCS considering electric field distribution in target and contralateral hemispheres of lower limb area
Hiroki Hamajima, Jose Gomez-Tames (NITech), Shintaro Uehara, Yohei Otaka (FHU), Satoshi Tanaka (HUSM), Akimasa Hirata (NITech) EMCJ2021-38 MW2021-50 EST2021-40
In recent years, there has been a growing interest in focal brain neuromodulation in a non-invasive manner for medical t... [more] EMCJ2021-38 MW2021-50 EST2021-40
pp.54-59
WPT 2021-03-05
10:45
Online Online Development of a Closed-loop Controlled Position Following System Utilizing Harmonic Reradiation from Rectenna
Jie Chu, Bo Yang, Naoki Shinohara, Tomohiko Mitani (Kyoto Univ.) WPT2020-44
In this research, we investigated the position estimation system that uses the second harmonic reflection of the power r... [more] WPT2020-44
pp.51-55
MW, EST, EMCJ, PEM, IEE-EMC [detail] 2020-10-22
14:20
Online Online tDCS montage evaluation for targeting the lower limb in the primary motor and supplementary motor areas
Hiroki Hamajima, Jose Gomez-Tames (NITech), Shintaro Uehara, Yohei Otaka (FHU), Satoshi Tanaka (HUSM), Akimasa Hirata (NITech) EMCJ2020-34 MW2020-48 EST2020-36
In recent years, there has been a growing interest in focal brain neuromodulation in a non-invasive manner for medical t... [more] EMCJ2020-34 MW2020-48 EST2020-36
pp.54-59
OCS, OFT, OPE
(Joint) [detail]
2020-02-27
15:30
Okinawa Okinawa Jichikaikan Direct Detection Circuit of Retardation Shift Keying Signal
Yuhei Okada, Hiroshi Takahashi (Sophia Univ) OCS2019-80 OFT2019-64 OPE2019-103
We propose a retardation shift keying (RSK), which is a modulation method using the phase difference between two orthogo... [more] OCS2019-80 OFT2019-64 OPE2019-103
pp.13-16(OCS), pp.25-28(OFT), pp.25-28(OPE)
OPE, LQE, OCS 2019-11-11
16:45
Tokyo Kikai-Shinko-Kaikan Bldg (Tokyo) [Special Invited Talk] SSBI-free SSB-DD transmission scheme using phase modulation for high-quality analog mobile fronthaul
Shota Ishimura, Hsuan-Yun Kao, Kazuki Tanaka,, Kosuke Nishimura, Masatoshi Suzuki (KDDI Research) OCS2019-59 OPE2019-97 LQE2019-75
In this invited talk, we introduce a signal-to-signal beat interference (SSBI)-free direct-detection transmission system... [more] OCS2019-59 OPE2019-97 LQE2019-75
pp.37-41
LQE, OPE, CPM, EMD, R 2019-08-23
09:40
Miyagi   [Invited Talk] High Function Semiconductor Lasers for Next Generation Optical Communication Systems
Hiroshi Yasaka, Nobuhide Yokota, Kanno Mitsunari, Sato Shouta (Tohoku Univ.) R2019-29 EMD2019-27 CPM2019-28 OPE2019-56 LQE2019-34
Compact narrow linewidth semiconductor laser source is proposed and demonstrated by utilizing optical negative feedback ... [more] R2019-29 EMD2019-27 CPM2019-28 OPE2019-56 LQE2019-34
pp.47-50
PN, EMT, OPE, EST, MWP, LQE, IEE-EMT [detail] 2019-01-17
16:20
Osaka Osaka University Nakanoshima Center [Invited Talk] Reconstruction schemes for complex-modulated optical signals using direct detection
Masayuki Matsumoto (Wakayama Univ.) PN2018-42 EMT2018-76 OPE2018-151 LQE2018-161 EST2018-89 MWP2018-60
A number of studies have been recently devoted to direct detection (DD) schemes for multivalued complex-modulated signal... [more] PN2018-42 EMT2018-76 OPE2018-151 LQE2018-161 EST2018-89 MWP2018-60
pp.59-63
RCS, AP
(Joint)
2018-11-20
11:15
Okinawa Okinawa Industry Support Center A Study on Space Selective Modulation in Land Mobile Communication
Daiki Fukushima, Hideiti Sasaoka, Hisato Iwai (Doshisha Univ.) RCS2018-181
As a physical layer security technique, Directional Modulation with multiple antennas which forms desired modulated sign... [more] RCS2018-181
pp.19-24
OPE, LQE, OCS 2018-10-19
13:55
Saga   Channel Capacity in Quantum-Noise-Limited Optical Communication Systems
Kazuro Kikuchi (NIAD-QE) OCS2018-47 OPE2018-83 LQE2018-72
In this paper, we analyze the bit-error rate (BER) and mutual information characteristics of intensity modulation/direct... [more] OCS2018-47 OPE2018-83 LQE2018-72
pp.105-110
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