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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| OFT | 2025-01-23 12:40 |
Osaka | (Osaka, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Root-Nyquist pulse generation using IQ modulator and nonlinear effect in optical fiber Shuya Kuromatsu, Yuji Miyoshi, Hirokazu Kubota (Osaka Metropolitan Univ.)  OFT2024-81 |
To accommodate the increasing traffic demand in recent years, improving the efficiency and capacity of optical fiber com... [more] | OFT2024-81 pp.1-4 |
| OFT | 2025-01-23 12:40 |
Osaka | (Osaka, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Phase Stabilization of DQPSK Signals Using a PSA Amplifier with Soliton Control Atsuo Namise, Hirokazu Kubota, Yuji Miyoshi (Osaka Metropolitan Univ.) OFT2024-82 |
The phase-sensitive amplifier (PSA) exhibits gain characteristics that depend on the phase of the input optical signal, ... [more] | OFT2024-82 pp.5-8 |
| OFT | 2025-01-23 12:40 |
Osaka | (Osaka, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Transmission characteristics of DSP-free 8PASK optical transmission Ryo Sonohara, Hirokazu Kubota, Yuji Miyoshi (Osaka Metropolitan Univ.) OFT2024-83 |
We aim for low latency and high capacity DSP-free fiber optic communications by means of amplitude and phase multi-level... [more] | OFT2024-83 pp.9-12 |
| OFT | 2025-01-23 14:40 |
Osaka | (Osaka, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Suppression of nonlinear degradation of signal quality by optical correlation detection using pulse trains Yohei Tsuruta, Hirokazu Kubota, Yuji Miyoshi (Osaka Metropolitan Univ.) OFT2024-89 |
Optical signal transmission in optical fibers is subject to inter-symbol interference due to wavelength dispersion and n... [more] | OFT2024-89 pp.33-36 |
| OFT | 2025-01-23 14:40 |
Osaka | (Osaka, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Changes in Dispersion and Loss Characteristics Due to Cross-Sectional Structure of NANF Shogo Ota, Hirokazu Kubota, Yuji Miyoshi (Osaka Metropolitan Univ.) OFT2024-90 |
With the increasing demand for telecommunications, optical communication systems are required to achieve further broadba... [more] | OFT2024-90 pp.37-40 |
| OFT | 2024-10-10 13:20 |
Tokyo | (Tokyo, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
The Effect of Input Waveforms on Root-Nyquist Pulse Generation Using Highly Nonlinear Fiber Shogo Miyashita, Yuji Miyoshi, Hirokazu Kubota, Isozaki Hideto (Osaka Metropolitan Univ.) OFT2024-49 |
The Nyquist Optical Time Division Multiplexing (N-OTDM) system offers high spectral efficiency with low intersymbol inte... [more] | OFT2024-49 pp.78-81 |
| OFT | 2024-10-10 15:20 |
Tokyo | (Tokyo, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Analysis of refractive index distribution of mechanical LPFG Keima Hamasaki, Hirokazu Kubota, Yuji Miyoshi (Osaka Metropolitan Univ.) OFT2024-57 |
Long-period fiber gratings (LPFGs) are being considered for use in a variety of devices, including temperature and press... [more] | OFT2024-57 pp.112-116 |
| OFT | 2024-10-10 15:20 |
Tokyo | (Tokyo, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Mode cleaner for mode multiplex communication using mechanical LPFG Fumihiro Nakajima, Hirokazu Kubota, Yuji Miyoshi (Osaka Metropolitan Univ) OFT2024-58 |
[more] | OFT2024-58 pp.117-120 |
| OCS, OFT, IEE-CMN, ITE-BCT (Joint) [detail] |
2023-11-10 13:00 |
Kyoto | (Kyoto, Online) (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 |
| OFT | 2023-10-12 13:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Tokyo, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Residual Dispersion Dependence of Optical QPSK Signal Demodulation using a Parzen Window with Inter-Symbol Interference Shoma Ito, Hirokazu Kubota, Yuji Miyoshi (Osaka Metropolitan Univ.) OFT2023-27 |
Currently, machine learning and artificial intelligence are used in a variety of techniques, and optical communication s... [more] | OFT2023-27 pp.47-50 |
| OFT | 2023-10-12 15:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Tokyo, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Root Nyquist pulse generation using nonlinear optical effects and optical pulse power dependence Hideto Isozaki, Yuji Miyoshi, Hirokazu Kubota, Shogo Miyashita (Osaka Metropolitan Univ.) OFT2023-41 |
[more] | OFT2023-41 pp.101-104 |
| OCS, OFT, OPE (Joint) [detail] |
2023-02-17 12:20 |
Okinawa | kukuru-itomancity (Okinawa, Online) (Primary: On-site, Secondary: Online) |
Reduction of nonlinear degradation using FIR filters. Koki Takashima, Yuji Miyoshi, Hirokazu Kubota (Osaka Metropolitan Univ) OCS2022-84 OPE2022-113 |
In order to achieve high-capacity communication in optical coherent transmission, a root-raised cosine filter (RRC filte... [more] | OCS2022-84 OPE2022-113 pp.73-76(OCS), pp.98-101(OPE) |
| OFT | 2023-01-19 15:35 |
Kyoto | Campas Plaza Kyoto (Kyoto, Online) (Primary: On-site, Secondary: Online) |
Influence of Integral Circuit and AD Converter on Eye Pattern Observation Method of Nyquist WDM Signal Using Optical Correlation Detection Kohei Ikehata (Osaka Prefecture Univ.), Yuji Miyoshi, Hirokazu Kubota (Osaka Metropolitan Univ.) OFT2022-44 |
Optical signals used in optical communications are becoming wider band and faster as communication demand increases. In ... [more] | OFT2022-44 pp.7-12 |
| OFT | 2023-01-19 16:00 |
Kyoto | Campas Plaza Kyoto (Kyoto, Online) (Primary: On-site, Secondary: Online) |
Broadband LPFG mode converter Jumpei Okagaki (Osaka prefecture Univ.), Hirokazu kubota, Yuji Miyoshi (Osaka Metropolitan Univ.) OFT2022-45 |
[more] | OFT2022-45 pp.13-16 |
| OFT | 2022-10-13 09:30 |
Kanagawa | Kanagawa-Kenmin Center (Kanagawa, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Root Nyquist pulse generation using nonlinear optical effects and dispersion dependence Hideto Isozaki (Osaka Metropolitan Univ.), Kyosuke Uchida (Osaka Prefecture Univ.), Yuji Miyoshi, Hirokazu Kubota (Osaka Metropolitan Univ.) OFT2022-21 |
[more] | OFT2022-21 pp.13-16 |
| OFT | 2022-10-13 10:50 |
Kanagawa | Kanagawa-Kenmin Center (Kanagawa, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Noise reduction technique for amplitude-modulated optical soliton transmission considering wavelength dispersion of optical fiber Kazuki Sakamoto, Hirokazu Kubota, Yuji Miyoshi (Osaka Metropolitan Univ.) OFT2022-28 |
Research and development related to Beyond 5G, the next generation of fifth-generation mobile communication systems (5G)... [more] | OFT2022-28 pp.39-42 |
| OCS, OFT, LSJ (Joint) [detail] |
2022-08-26 13:00 |
Online | Online (Online) | Fiber loss dependence in root-Nyquist pulse generation using nonlinear optical effects Kyosuke Uchida (Osaka Prefecture Univ.), Hideto Isozaki, Yuji Miyoshi, Hirokazu Kubota (Osaka Metropolitan Univ.) OFT2022-14 |
(Advance abstract in Japanese is available) [more] | OFT2022-14 pp.41-45 |
| OFT | 2022-05-13 14:50 |
Aomori | Aomori-Aspm Bldg (Aomori, Online) (Primary: On-site, Secondary: Online) |
Characterization of Pulse Amplitude Modulated Soliton Transmission Shinta Hirose, Hikaru Miyoshi, Hirokazu Kubota, Yuji Miyoshi (Osaka Prefecture Univ.) OFT2022-5 |
[more] | OFT2022-5 pp.20-24 |
| OFT | 2022-01-20 16:35 |
Online | Online (Online) | Study of multi-level soliton transmission using analog demodulation Hikaru Miyoshi, Hirokazu Kubota, Yuji Miyoshi, Shinta Hirose (OPU) OFT2021-63 |
[more] | OFT2021-63 pp.42-45 |
| OFT | 2022-01-20 17:00 |
Online | Online (Online) | Optical root-Nyquist pulse generation using IQ modulator and nonlinear effect in optical fiber Yuto Ueno, Yuji Miyoshi, Hirokazu Kubota (Osaka Prefecture Univ.) OFT2021-64 |
Nyquist OTDM transmission with high frequency efficiency and low inter-symbol interference has been proposed as one of t... [more] | OFT2021-64 pp.46-50 |
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