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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| PN | 2024-08-27 11:15 |
Hokkaido | (Primary: On-site, Secondary: Online) |
LO-Phase Isolation Method Using Dual Pilot Carriers and its Applications Taisei Sekizuka, Takuma Kuno, Reiji Higuchi (Nagoya Univ.), Ryuta Shiraki (Kyoto Univ.), Yojiro Mori, Hiroshi Hasegawa (Nagoya Univ.)  PN2024-25 |
Long-haul transmission systems with a use of high-symbol-rate signals suffer from equalization-enhanced phase noise (EEP... [more] | PN2024-25 pp.74-78 |
| OCS, OFT, LSJ (Joint) [detail] |
2024-08-23 11:35 |
Hokkaido | Real-Time Demonstration of Automatic Laser Frequency Adjustments for Intra-Data Center Coherent Transmissions Yukinobu Nakajima, Akira Masuda, Hiroki Taniguchi, Shuto Yamamoto, Yoshiaki Sone, Seiji Okamoto, Takeo Sasai, Etsushi Yamazaki (NTT) OCS2024-23 |
For intra-data center coherent transmission, it is effective to use lasers without wavelength lockers in order to reduce... [more] | OCS2024-23 pp.28-31 |
|
| RCC, RCS, SeMI, NS, SR, RISING (Joint) |
2024-07-19 14:55 |
Hokkaido | Hokkaido Citizens Activities Promotion Center (Primary: On-site, Secondary: Online) |
[Invited Talk]
Recent Trends in Quantum Speedups for Wireless Communications Naoki Ishikawa (YNU) SR2024-44 |
The basics and principles of quantum-related technologies are outlined in this presentation, followed by an overview of ... [more] | SR2024-44 p.77 |
| MW, EMT, OPE, MWPTHz, EST, IEE-EMT [detail] | 2024-07-11 10:25 |
Hokkaido | otaru-shimin-kaikan (Primary: On-site, Secondary: Online) |
Demonstration of a subarray CBC with phase-locking between multiple local beams Tomohiro Akiyama, Eisuke Haraguchi, Takahiro Suzuki, Narazaki Rio, Hitomi Ono (Mitsubishi Electric Corp.) EMT2024-8 MW2024-32 OPE2024-11 EST2024-9 MWPTHz2024-15 |
Coherent beam combining (CBC) technology is a method of generating high-brightness laser beams by phase combining multip... [more] | EMT2024-8 MW2024-32 OPE2024-11 EST2024-9 MWPTHz2024-15 pp.9-12 |
| MW, EMT, OPE, MWPTHz, EST, IEE-EMT [detail] | 2024-07-11 14:05 |
Hokkaido | otaru-shimin-kaikan (Primary: On-site, Secondary: Online) |
Study on optical phased array system with pseudorandom phase modulation for realizing high-power laser system Eisuke Haraguchi, Hitomi Ono, Rio Narazaki, Tomohiro Akiyama (MitsubishiElectric Corp.) EMT2024-13 MW2024-37 OPE2024-16 EST2024-14 MWPTHz2024-20 |
(To be available after the conference date) [more] | EMT2024-13 MW2024-37 OPE2024-16 EST2024-14 MWPTHz2024-20 pp.24-27 |
| NS, PN, OCS (Joint) |
2024-06-06 10:50 |
Nagasaki | (Primary: On-site, Secondary: Online) |
Experimental Demonstration of Adaptive Symbol Decision to Mitigate Transmitter Impairments Taisei Sekizuka, Takuma Kuno, Reiji Higuchi, Takuro Ochiai, Yojiro Mori, Hiroshi Hasegawa (Nagoya Univ) PN2024-7 |
Quadrature amplitude modulation / coherent detection systems are being considered for use in datacenters. However, the e... [more] | PN2024-7 pp.6-9 |
| NS, PN, OCS (Joint) |
2024-06-06 12:40 |
Nagasaki | (Primary: On-site, Secondary: Online) |
[Invited Talk]
Digital Longitudinal Monitoring of Fiber Optic Link Using Coherent Receiver Takeo Sasai (NTT) OCS2024-12 |
In fiber-optic communication systems, it is crucial for operators to accurately monitor various physical parameters alon... [more] | OCS2024-12 pp.17-22 |
| NS, PN, OCS (Joint) |
2024-06-06 16:00 |
Nagasaki | (Primary: On-site, Secondary: Online) |
Trials of 1.2 Tbps Optical Transmission Over 336 km Across a Live Network and 1. 034 Tbps Data Transfer Yuna Aoki, Sachio Suda, Kenichi Aoyagi, Soichiroh Usui (NTT), Kousuke Komaki, Takehiro Fujita, Endo Akio (Fujitsu), Takashi Kurimoto, Kenjiro Yamanaka (NII), Daisaku Shimazaki (NTT) NS2024-28 |
Recently, because of breakthrough of technology, such as 6G, big data, AI, cloud computing, and others, data traffic has... [more] | NS2024-28 pp.1-5 |
| OPE, LQE, OFT, OCS | 2024-05-17 16:05 |
Online | Online | [Special Invited Talk]
Metasurface-based Coherent Receiver Insensitive to LO Polarization Takuo Tanemura, Kento Komatsu (Univ. Tokyo), Shota Ishimura (KDDI Research), Chun Ren, Go Soma (Univ. Tokyo), Hidenori Takahashi, Takehiro Tsuritani (KDDI Research), Masatoshi Suzuki (Waseda Univ.), Yoshiaki Nakano (Univ. Tokyo) OCS2024-7 OFT2024-18 OPE2024-7 LQE2024-7 |
This talk reviews the results presented at OFC 2024 postdeadline paper Th4B.2. Conventional dual-polarization (DP) cohe... [more] | OCS2024-7 OFT2024-18 OPE2024-7 LQE2024-7 pp.27-30 |
| PN | 2024-03-15 09:00 |
Kagoshima | (Primary: On-site, Secondary: Online) |
Research on QAM symbol block ciphering using space-time digital key transformation Reika Suketomo, Keiji Shimada (Kagawa Univ.), Ryosuke Matsumoto (AIST), Takahiro Kodama (Kagawa Univ.) PN2023-76 |
We have shown by simulation that a spatial-temporal spreading key encryption with spatial digital key transformation(DKX... [more] | PN2023-76 pp.37-41 |
| PN | 2024-03-15 09:20 |
Kagoshima | (Primary: On-site, Secondary: Online) |
Study on Symbol-block AES Cryptography for Digital Coherent Communication Hodaka Amano, Takahiro Kodama (Kagawa Univ.) PN2023-77 |
We applied symbol block AES encryption, which inherits the four functions that form the basic structure of the advanced ... [more] | PN2023-77 pp.42-47 |
| 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 |
| PN | 2024-03-15 16:10 |
Kagoshima | (Primary: On-site, Secondary: Online) |
A Study of Coherent Downstream Transmission of Adaptive Polarization and IQ Multiplexed Signals with Asymmetric Number of Signal Points and Amplitude Yuika Mori, Keiji Shimada, Takahiro Kodama (Kagawa Univ.) PN2023-92 |
We have already reported downlink transmission using IQ multiplexed 4ASK signals with power loading for the difference i... [more] | PN2023-92 pp.127-130 |
| OCS, CS (Joint) |
2024-01-11 15:40 |
Kagoshima | [Special Invited Talk]
Progress and Challenges in Quantum-Assisted Communication Systems Naoki Ishikawa (Yokohama National Univ.) CS2023-96 OCS2023-60 |
Progress and challenges in quantum-assisted communication systems are reviewed in this presentation. Specifically, the f... [more] | CS2023-96 OCS2023-60 p.13(CS), p.19(OCS) |
|
| OCS, CS (Joint) |
2024-01-12 09:55 |
Kagoshima | Fully coherent optical and wireless transmission in the 28 GHz band by using an injection-locked carrier frequency converter Koichi Shirahata, Keisuke Kasai, Masato Yoshida, Toshihiko Hirooka, Masataka Nakazawa (Tohoku Univ.), Uichiro Azuma, Toshiyuki Kobayashi (Nihon Dengyo Kosaku) OCS2023-63 |
As an optical mobile fronthaul with low latency and low power consumption, we have proposed a fully coherent optical and... [more] | OCS2023-63 pp.31-36 |
|
| LQE, OPE, OCS | 2023-11-24 16:30 |
Online | Online | [Special Invited Talk]
Demonstration of 4-core Dual-polarization Optical Hybrid Using Dielectric Metasurface Kento Komtsu, Go Soma (Univ. of Tokyo), Shota Ishimura, Hidenori Takahashi, Takehiro Tsuritani, Masatoshi Suzuki (KDDI Research), Yoshiaki Nakano, Takuo Tanemura (Univ. of Tokyo) OCS2023-55 OPE2023-105 LQE2023-52 |
This technical report reviews the presentation of the ECOC2023 postdeadline paper Th.C.1.3. Spatially scalable metasurfa... [more] | OCS2023-55 OPE2023-105 LQE2023-52 pp.30-33 |
| PN | 2023-11-16 15:30 |
Ehime | (Primary: On-site, Secondary: Online) |
[Invited Talk]
Free-space optical communications using photonic-crystal surface-emitting lasers Shota Ishimura (KDDI Research.), Ryohei Morita, Takuya Inoue (Kyoto Univ.), Kosuke Nishimura, Hidenori Takahashi, Takehiro Tsuritani (KDDI Research.), Menaka De Zoysa, Kenji Ishizaki (Kyoto Univ.), Masatoshi Suzuki (KDDI Research.), Susumu Noda (Kyoto Univ.) PN2023-41 |
Recently, the application of optical communication in space has been actively discussed. Compared to microwaves or milli... [more] | PN2023-41 pp.27-32 |
| OCS, OFT, IEE-CMN, ITE-BCT (Joint) [detail] |
2023-11-10 13:00 |
Kyoto | (Primary: On-site, Secondary: Online) |
Suppression of signal quality degradation due to nonlinear optical effects using optical correlation receivers or FIR filters Koki Takashima, Hirokazu Kubota, Yuji Miyoshi (Osaka Metropolitan Univ.) OCS2023-45 |
Inter-symbol interference occurs in optical signal transmission in optical fibers due to the compound effect of waveleng... [more] | OCS2023-45 pp.12-15 |
| RISING (3rd) |
2023-10-31 14:00 |
Hokkaido | Kaderu 2・7 (Sapporo) | [Poster Presentation]
Digital Signal Processing Based on Neural Networks
-- The Key Technology for Realizing High-capacity Optical Fiber Communication Systems -- Takuro Ochiai, Reiji Higuchi, Takuma Kuno (Nagoya Univ.), Ryuta Shiraki (Kyoto Univ.), Yojiro Mori, Hiroshi Hasegawa (Nagoya Univ.) |
To fulfil the ever-increasing traffic demands, the introduction of quadrature amplitude modulation and coherent detectio... [more] | |
| OCS, LQE, OPE | 2023-10-19 13:25 |
Kochi | (Primary: On-site, Secondary: Online) |
Temperature Synchronization for Quasi-Actual Operation of One-Chip Wavelength Locker and Laser Chip Junichi Suzuki, Kiyotomo Hasegawa, Kei Masuyama, Nobuo Ohata (Mitsubishi) OCS2023-30 OPE2023-85 LQE2023-32 |
In this paper, we calculated wavelength locker chip outputs in our proposed condition and demonstrated the operation in ... [more] | OCS2023-30 OPE2023-85 LQE2023-32 pp.20-23 |
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