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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| OFT, OCS, IEE-CMN, ITE-BCT [detail] | 2021-11-19 11:15 |
Online | Online | [Invited Talk]
Recent progress of coherent free-space optical communications Chao Zhang (Shimane Univ.), Kota Uyama, Zheyuan Zhang, Sze Yun Set, Shinji Yamashita (Univ. of Tokyo)  OFT2021-54 |
Free-space optical communication is preferred for its advantages over radio frequency wireless communication, such as no... [more] | OFT2021-54 pp.17-22 |
| PN, NS, OCS (Joint) |
2021-06-25 13:25 |
Online | Online | Field reconstruction of optical OFDM signals using temporal transport-of-intensity equation Masayuki Matsumoto (Wakayama Univ.) OCS2021-5 |
Optical signal phase reconstruction based on temporal transport-of-intensity equation is a non-iterative complex-field r... [more] | OCS2021-5 pp.20-24 |
| SR | 2021-05-20 14:50 |
Online | Online | [Invited Lecture]
The use of USRP with UHD and GNU Radio focusing on time and phase synchronization Yoji Yamada (NIT, Ishikawa College), Tomoya Nakahama (Kanazawa University) SR2021-7 |
When building some kind of observation/measurement system with software-defined radio USRP using GNU Radio Companion (GR... [more] | SR2021-7 p.48 |
| OCS, CS (Joint) |
2021-01-14 13:55 |
Online | Online | A Study on Q Performance for 400 Gb/s Signals under SOP Variation and Tight Optical Filtering in Cascaded Node Optical Transmission Shun Chikamori, Masashi Binkai, Tsuyoshi Yoshida, Kiyoshi Onohara, Naoki Suzuki (Mitsubishi Electric) OCS2020-28 |
We experimentally evaluated the impact of fast state of polarization (SOP) variations on the received Q-factor of 400 Gb... [more] | OCS2020-28 pp.7-11 |
| OCS, CS (Joint) |
2021-01-14 14:20 |
Online | Online | Study of the Effect of Single Near-end Reflection on Bidirectional Transmission of QPSK/OOK Asymmetrically Modulated Signals in the Same Bandwidth Tetsuji Goto, Takahiro Kodama, Masahiko Jinno (Kagawa Univ.) OCS2020-29 |
In recent years, PON systems for mobile front halls are required to have a larger capacity due to wireless terminal base... [more] | OCS2020-29 pp.12-17 |
| OPE, LQE | 2020-11-20 15:30 |
Online | Online | Feasibility confirmation of high-security wireless communication using high-directivity THz Waves
-- Realization of AND operation by homodyne detection and heterodyne detection -- Yusuke Kawai, Kenta Yamauchi, Kazutoshi Kato (Kyushu Univ.) OPE2020-55 LQE2020-35 |
We have been inventing a new encrypted methods to improve physical-layer security of wireless communication. As one of c... [more] | OPE2020-55 LQE2020-35 pp.53-57 |
| OFT, ITE-BCT, OCS, IEE-CMN [detail] | 2020-11-12 16:50 |
Online | Online | Multi-Channel Simultaneous Encryption in WDM Systems of PSK Y-00 Quantum Stream Cipher Ken Tanizawa, Fumio Futami (Tamagawa Univ.) OCS2020-26 |
Tapping from an optical fiber link is a potential security risk in optical communication systems. Physical layer encrypt... [more] | OCS2020-26 pp.15-20 |
| R, LQE, OPE, CPM, EMD | 2020-08-28 13:55 |
Online | Online | [Invited Talk]
InP-based Waveguide Photodetectors for IMDD/Coherent Transmission Applications Yoshihiro Yoneda, Takuya Okimoto (SEI), Ken Ashizawa, Koji Ebihara, Satoru Okamoto, Kazuhiko Horino (SEDI), Hideki Yagi, Mitsuru Ekawa (SEI) R2020-13 EMD2020-12 CPM2020-5 OPE2020-25 LQE2020-5 |
Optical receivers for 400 Gb/s and beyond optical communication systems have been required modulation speeds higher than... [more] | R2020-13 EMD2020-12 CPM2020-5 OPE2020-25 LQE2020-5 pp.21-24 |
| SANE | 2019-11-29 13:05 |
Osaka | OIT UMEDA Campus | Range Walk and Doppler Frequency Tolerant Frequency Division MIMO Radar Satoshi Kageme, Kazuaki Maniwa, Kei Suwa (Mitsubishi Electric Corp.) SANE2019-81 |
MIMO(Multi Input Multi Output) radar may significantly improve the radar performance on a number aspects by using multip... [more] | SANE2019-81 pp.61-66 |
| LQE, OPE, CPM, EMD, R | 2019-08-22 14:15 |
Miyagi | [Invited Talk]
Ultra boradband digital coherent technologies for 1Tb/s channel rate and beyond Takayuki Kobayashi (NTT) R2019-23 EMD2019-21 CPM2019-22 OPE2019-50 LQE2019-28 |
Research and development of optical transmission systems with over-1-Tb/s capacity per wavelength are underway to effici... [more] | R2019-23 EMD2019-21 CPM2019-22 OPE2019-50 LQE2019-28 pp.21-24 |
|
| LQE, OCS, OPE | 2019-05-13 16:50 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | [Special Invited Talk]
Phase-retrieving Coherent Detection by a High-speed Photodetector Array Yuki Yoshida, Toshimasa Umezawa, Atsushi Kanno, Naokatsu Yamamoto (NICT) OCS2019-8 OPE2019-8 LQE2019-8 |
A novel coherent detection technique based on phase retrieval is introduced. A 2-D arrayed photodetector with a novel di... [more] | OCS2019-8 OPE2019-8 LQE2019-8 pp.29-34 |
| 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 |
| OCS, CS (Joint) |
2019-01-17 17:15 |
Okinawa | Nobumoto Ohama Memorial Hall (Ishigaki Island) | [Invited Lecture]
160 Gbit/s, 256 QAM bidirectional coherent transmission for next generation mobile fronthaul Keisuke Kasai, Masato Yoshida, Toshihiko Hirooka, Katsumi Iwatsuki, Masataka Nakazawa (Tohoku Univ.) CS2018-95 OCS2018-75 |
We have recently proposed a simple digital coherent transmission system with an injection locking technique for a next g... [more] | CS2018-95 OCS2018-75 pp.47-52(CS), pp.41-46(OCS) |
| IBISML | 2018-11-05 15:10 |
Hokkaido | Hokkaido Citizens Activites Center (Kaderu 2.7) | [Poster Presentation]
Normal mode selection of coherent phonons by Bayesian LARS-OLS Itsushi Sakata, Yoshihiro Nagano (UTokyo), Yasushiko Igarashi (JST), Shin Murata (UTokyo), Kohji Mizoguchi (Osaka Prefecture Univ.), Ichiro Akai (Kumamoto Univ.), Masato Okada (UTokyo) IBISML2018-78 |
Coherent phonon (CP) signals contain normal modes representing the material property and experimental artifacts. It is p... [more] | IBISML2018-78 pp.255-262 |
| OPE, LQE, OCS | 2018-10-19 13:30 |
Saga | Performance evaluation of spectrally-synthesized coherent reception for constellation monitoring of pseudo random quadrature phase shift keying optical signals Naoki Urakawa, Koji Igarashi (Osaka Univ.) OCS2018-46 OPE2018-82 LQE2018-71 |
In our proposed spectrally-synthesized coherent reception for measuring constellation maps of periodical optical signals... [more] | OCS2018-46 OPE2018-82 LQE2018-71 pp.99-104 |
|
| SANE | 2018-10-12 11:45 |
Tokyo | The University of Electro-Communications | Evaluation of Range Estimation Accuracy by Wideband Coherent Processing for Sparse Frequency Bands Kazuhiro Watanabe, Manabu Akita, Takayuki Inaba (EUC) SANE2018-49 |
Ultra-wideband is becoming available in short range radar, and further higher resolution is expected by utilizing ultra-... [more] | SANE2018-49 pp.29-34 |
| OFT | 2018-10-11 14:00 |
Miyagi | Touhoku Univ. | [Poster Presentation]
12 bit/s/Hz, 58.2 Tbit/s, 256 QAM-160 km C-band WDM Transmission Using an Injection Locking Technique Takashi Kan, Keisuke Kasai, Masato Yoshida, Toshihiko Hirooka, Masataka Nakazawa (Tohoku Univ.) OFT2018-28 |
Injection locking can realize precise carrier-phase synchronization between the transmitted data and a local oscillator ... [more] | OFT2018-28 pp.73-77 |
| OCS, OFT, LSJ (Joint) [detail] |
2018-08-30 16:50 |
Hokkaido | Hakodate Hokuyo Building 8Kai Hall | 600 Gbps/λ Signal Transmission Technologies Employing High-order Modulation Formats Asuka Matsushita, Masanori Nakamura, Fukutaro Hamaoka, Seiji Okamoto, Yoshiaki Kisaka (NTT) OCS2018-23 |
The communication traffic is increasing exponentially and there are demands to increase the capacity of optical transmis... [more] | OCS2018-23 pp.25-29 |
| CS, OCS (Joint) |
2018-01-30 08:50 |
Ehime | Ehime University | Feedback-control-free Adaptive Equalization Using Dual-polarization Pilot Tones for Optical Coherent Reception Tomoki Nishiyama, Shuai Yuan, Koji Igarashi (Osaka Univ.) OCS2017-73 |
We propose feedback-control-free adaptive equalization for optical coherent receivers. The polarization rotation and the... [more] | OCS2017-73 pp.37-41 |
| OCS, OPE, LQE | 2017-10-27 10:20 |
Kumamoto | Josaien, Sakuranobaba | A study on equivalence between optical QAM transmission using phase-conjugated twin waves and polarization-multiplexed optical APSK transmission. Toshiki Nakao, Kariyawasam Indipalage Amila Sampath, Joji Maeda (Tokyo Univ. of Science) OCS2017-49 OPE2017-81 LQE2017-54 |
Distortion compensation using phase-conjugated twin waves has been proposed to overcome the transmission limit of optica... [more] | OCS2017-49 OPE2017-81 LQE2017-54 pp.67-71 |
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