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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| OCS, LQE, OPE | 2023-10-19 15:15 |
Kochi | (Primary: On-site, Secondary: Online) |
Impact of Reflections at MMI Combiner in Mach-Zehnder Silicon Optical Modulators: Towards Extrinsic OMA Enhancement Tadashi Murao (Mitsubishi Electric), Tsuyoshi Horikawa (Tokyo Tech.)  OCS2023-34 OPE2023-89 LQE2023-36 |
The realization of high dynamic extinction ratio (ER) and optical modulation amplitude (OMA) while keeping the optical a... [more] | OCS2023-34 OPE2023-89 LQE2023-36 pp.37-40 |
| NLP | 2022-08-02 09:00 |
Online | Online | Low Noise Environment Generates Non Linear Evolution
-- The Evolution of Complexity in Living Organism and Phoneme Sharing of Humans -- Kumon Tokumaru (Researcher) NLP2022-26 |
The evolution of life occurs suddenly after mass extinction. Lives who survived mass extinction period with mutation, ev... [more] | NLP2022-26 pp.1-6 |
| COMP, IPSJ-AL | 2022-05-19 16:15 |
Online | Online | Information Theory of Evolution
-- The Driving Force of Saltative Evolution -- Kumon Tokumaru (Researcher) COMP2022-6 |
The evolution s from Prokaryote to Eukaryote and the birth of vertebrates are saltative. Plausibly they take place as sy... [more] | COMP2022-6 pp.39-44 |
| PN, MWP, EMT, PEM, IEE-EMT [detail] | 2022-01-28 15:45 |
Online | Online | Mach-Zehnder optical modulator with tunable multimode interference coupler of Ti:LiNbO3 waveguides for modulation of high extinction ratio Anna Hirai, Shotaro Yasumori, Yuichi Matsumoto (Univ of Hyogo.), Takanori Sato (Hokkaido Univ.), Tadashi Kawai, Akira Enokihara (Univ of Hyogo.), Shinya Nakajima, Atsushi Kanno, Naokatsu Yamamoto (NICT) PN2021-48 EMT2021-64 MWP2021-53 |
A Mach-Zehnder optical modulator (MZM) with multimode interference (MMI) couplers using Ti-diffused LiNbO3 was considere... [more] | PN2021-48 EMT2021-64 MWP2021-53 pp.85-90 |
| OPE, LQE | 2020-11-20 15:30 |
Online | Online | Increasing the Extinction Ratio of Si Optical Modulators Hiroki Kojima (Waseda Univ.), Jun-ichi Hujikata (NEC), Tomohiro Kita (Waseda Univ.) OPE2020-70 LQE2020-50 |
In recent years, digital coherent optical transmission systems have been put to practical use, and Si modulators with a ... [more] | OPE2020-70 LQE2020-50 pp.125-128 |
| EST | 2020-01-31 14:15 |
Oita | Beppu International Convention Center | Analysis of a TE-pass/TM-stop waveguide polarizer in the THz region Sumire Takahashi, Jun Shibayama, Junji Yamauchi, Hisamatsu Nakano (Hosei Univ.) EST2019-98 |
We propose a TE-pass/TM-stop waveguide polarizer with a semiconductor layer in the terahertz region. First, we investiga... [more] | EST2019-98 pp.97-102 |
| AI | 2019-09-13 14:20 |
Kagoshima | The Reconfiguration of Recognition by Satellite Earth Observation Data
-- From Vegetation Condition Index to Digital Linguistics -- Kumon Tokumaru (Writer) AI2019-21 |
The author designed, constructed and operated an oceanic environment observation system using earth observation satellit... [more] | AI2019-21 pp.13-18 |
|
| LQE, OPE, SIPH | 2018-12-06 17:10 |
Tokyo | Keio University | Numerical design of metal-clad cavity device coupled to InP waveguide for on-chip optical interconnect Yuguang Wang, Yi Xiao, Takuo Tanemura, Yoshiaki Nakano (Tokyo Univ.) OPE2018-106 LQE2018-116 SIPH2018-22 |
We propose a horn-shaped metal-clad cavity which is integrated with an InP waveguide. The simulation by finite differenc... [more] | OPE2018-106 LQE2018-116 SIPH2018-22 pp.43-46 |
| MWP (2nd) |
2018-08-06 | Shimane | Shimane Prefectural Convention Center (Matsue City) | Parallel Mach-Zehnder Modulator Characterization Method using Simultaneous Transcendental Equations Hugo S. C. Freire (Waseda Univ.), Keizo Inagaki (NICT), Tetsuya Kawanishi (Waseda Univ.) |
Parallel Mach-Zehnder optical modulators have imperfections that affect the generation of high-order modulation signals.... [more] | |
| OPE | 2017-12-07 13:15 |
Okinawa | [Poster Presentation]
High extinction ratio of polarization splitter based on directional coupler Hiroya Mitsuno, Takeo Maruyama (Kanazawa Univ.) OPE2017-100 |
High refractive index difference of silicon waveguide enables high-density integration, but due to strong polarization d... [more] | OPE2017-100 pp.59-62 |
|
| OPE | 2016-12-09 13:25 |
Okinawa | Proposal of Multimode Interference-Type Electroabsorption Optical Modulator with High Extinction Ratio Daisuke Okitsu, Yu Yamano (Yokohama National Univ.), Joo-Hyong Noh (kaonto Gakuin Univ.), Taro Arakawa (Yokohama National Univ.) OPE2016-113 |
An electroabsorption modulator with a 1×1 multimode interference waveguide (MMI-EAM) is proposed. A partial EA region is... [more] | OPE2016-113 pp.51-56 |
|
| MWP | 2014-11-05 15:50 |
Miyagi | RIEC, Tohoku Univ. | Optical two-tone signal generation using high extinction-ratio modulator integrated with active Y-branch Yuya Yamaguchi, Kazuki Seki, Hiroyuki Koyano (Waseda Univ.), Atsushi Kanno, Tetsuya Kawanishi (NICT), Masayuki Izutsu, Hirochika Nakajima (Waseda Univ.) MWP2014-46 |
We demonstrated an optical two-tone signal generation using high extinction-ratio modulator with active Y-branch. By usi... [more] | MWP2014-46 pp.25-28 |
| MWP, EMT, PN, LQE, OPE, EST, IEE-EMT [detail] | 2014-01-23 09:50 |
Kyoto | Doshisha University | Uncertainty Budget Calculation of PD Frequency Response Measurement Using Optical Modulator Keizo Inagaki, Tetsuya Kawanishi (NICT), Michitaka Ameya, Satoru Kurokawa (AIST), Hidenori Iwai, Yoichi Oikawa (Trimatiz), Junichiro Ichikawa (SOC) PN2013-36 OPE2013-150 LQE2013-136 EST2013-85 MWP2013-56 |
We propose a measurement method of frequency response of PDs, which use Mach Zehnder optical intensity modulator. In th... [more] | PN2013-36 OPE2013-150 LQE2013-136 EST2013-85 MWP2013-56 pp.11-16 |
| MWP | 2013-11-29 15:15 |
Tokyo | Railway Technical Research Institute | Low-chirp and high-extinction ratio optical modulation for radio-over-fiber Tetsuya Kawanishi (NICT) MWP2013-50 |
Optical modulation plays important roles both in digital and analog optical communication systems. Multi-level modulatio... [more] | MWP2013-50 pp.17-22 |
| OCS | 2013-07-25 15:50 |
Tokyo | Sumida-Sangyo-Kaikan | Impact of Pulse Shaping and Transceiver Imperfections on Nonlinear Compensated Transmission System Tomofumi Oyama (Fujitsu Lab.), Takeshi Hoshida, Hisao Nakashima (Fujitsu), Chihiro Ohshima (Fujitsu Lab.), Zhenning Tao (FRDC), Jens C. Rasmussen (Fujitsu) OCS2013-24 |
We investigate the impact of pulse shaping and transceiver imperfections by numerical simulation of 127Gbit/s DP-QPSK WD... [more] | OCS2013-24 pp.29-34 |
| EMD, CPM, OME | 2013-06-21 14:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | An experimental study on influences of contact opening speeds on break arc durations of Ag and AgSnO2 contacts Makoto Hasegawa (Chitose Inst. of Science and Tech.) EMD2013-15 CPM2013-30 OME2013-38 |
In a DC inductive load circuit (L=20mH) and a DC resistive load circuit with a power supply voltage of DC14V, break oper... [more] | EMD2013-15 CPM2013-30 OME2013-38 pp.43-48 |
| OPE, MW, MWP, EMT, EST, IEE-EMT [detail] | 2011-07-22 10:45 |
Hokkaido | Broadband Optoelectronic Frequency Response Measurement Using Optical Amplifier with Automatic Level Control Ukrit Mankong, Keizo Inagaki, Tetsuya Kawanishi (NICT) MW2011-58 OPE2011-45 EST2011-44 MWP2011-26 |
Optoelectronic frequency response calibration using high extinction ratio (ER) Mach-Zehnder Modulator (MZM) in a heterod... [more] | MW2011-58 OPE2011-45 EST2011-44 MWP2011-26 pp.115-118 |
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| EMD, OPE, LQE, CPM | 2010-08-27 11:40 |
Hokkaido | Chitose Arcadia Plaza | Numerical Analysis of a Metal-Clad Waveguide Polarizer Junji Yamauchi, Tomohiro Nakano, Hisamatsu Nakano (Hosei Univ.) EMD2010-49 CPM2010-65 OPE2010-74 LQE2010-47 |
We numerically demonstrate two types of metal-clad waveguide polarizers, in which the transmission wave can be selected ... [more] | EMD2010-49 CPM2010-65 OPE2010-74 LQE2010-47 pp.109-114 |
| OPE, LQE | 2010-06-25 17:15 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Examination about bias control method of parallel LiNbO3 optical modulators Yuta Tsuchiya (Waseda Univ.), Takahide Sakamoto, Tetsuya Kawanishi (NICT), Hirochika Nakajima (Waseda Univ.) OPE2010-21 LQE2010-23 |
We improved extinction ratio by putting a new electrode on a Y-branch structure at input side of a Mach-Zehnder interfer... [more] | OPE2010-21 LQE2010-23 pp.31-35 |
| CS, OCS (Joint) |
2010-01-28 16:00 |
Yamaguchi | Kaikyo Messe Shimonoseki | Optimum Optical Extinction Ratios and Error-Rate Performances of Optical ADPSK-DD Shinya Okano, Seiji Norimatsu (Kyoto Univ.) OCS2009-106 |
We examine error rate performances of optical amplitude- and differential phase-shift keying (ADPSK) and direct detectio... [more] | OCS2009-106 pp.37-42 |
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