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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 45  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
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
OFT 2023-10-12
13:00
Tokyo Kikai-Shinko-Kaikan Bldg.
(Primary: On-site, Secondary: Online)
[Poster Presentation] Dependence on Soliton Amplitude of the Noise Reduction Effect by Soliton Control of Amplitude Multi Multi-Level Modulated Optical Signals
Kazuki Sakamoto, Hirokazu Kubota, Yuzi Miyoshi (Osaka Metropolitan Univ) OFT2023-26
 [more] OFT2023-26
pp.43-46
OFT 2023-10-12
13:00
Tokyo Kikai-Shinko-Kaikan Bldg.
(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.
(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
(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
(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
(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
(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
(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 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
(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 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 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
OFT 2021-01-14
15:35
Online Online Numerical evaluation of Root-Nyquist Pulse Generation Using Highly Nonlinear Fiber
Jiro Osawa, Tomoya Yokoi, Yuji Miyoshi, Hirokazu Kubota (Osaka Prefecture Univ.) OFT2020-49
Nyquist optical time division multiplexing (N-OTDM) is expected as one of the methods to realize large capacity of optic... [more] OFT2020-49
pp.23-27
OFT 2020-10-08
11:40
Online Online [Poster Presentation] Numerical evaluation of errors in measuring effective area of few mode fibers due to fiber positioning in VAFF method.
Sei-iciro Kida, Yuji Miyoshi, Hirokazu Kubota (Osaka Prefecture Univ.) OFT2020-20
The variable aperture in the far-field (VAFF) method measures power in the far-field passing through a set of circular ... [more] OFT2020-20
pp.46-49
OFT 2020-10-08
11:40
Online Online [Poster Presentation] Investigation of mode conversion characteristics of LPFG fabricated on few-mode fibers
Kazuhiro Tsuboi, Mimi Higaki, Hirokazu Kubota, Yuji Miyoshi (Osaka Prefecture Univ.) OFT2020-22
 [more] OFT2020-22
pp.52-55
OCS, OFT, LSJ
(Joint) [detail]
2020-08-28
16:15
Online Online Characteristic change of LPFG fabricated by CO2 laser by external force
Koki Mitsuda, Osanori Koyama, Yuta Suzuki, Yuzi Miyoshi, Hirokazu Kubota, Makoto Yamada (Osaka Prefecture Univ.) OFT2020-7
The transmission characteristics of a long period fiber grating (LPFG) change due to various external factors. LPFG manu... [more] OFT2020-7
pp.25-28
OCS, ITE-BCT, OFT, IEE-CMN [detail] 2019-11-21
15:55
Yamaguchi Kaikyo-Messe-Shimonoseki Cut-off frequency dependence of N-OTDM signal de-multiplexing in correlation receiver using AIDD method.
Shota Maeda, Yuji Miyoshi, Hirokazu Kubota (Osaka Prefecture Univ.) OCS2019-61
Recently, the Nyquist optical time division multiplexing (N-OTDM) transmission method have attracted attention in order ... [more] OCS2019-61
pp.25-28
OCS, ITE-BCT, OFT, IEE-CMN [detail] 2019-11-22
09:30
Yamaguchi Kaikyo-Messe-Shimonoseki Chromatic dispersion dependence of nonlinear signal degradation in guard bandless Nyquist OTDM-WDM
Koki Ono, Yuji Miyoshi, Hirokazu Kubota (Osaka Prefecture Univ.) OFT2019-39
With the recent increase in Internet traffic, large-capacity transmission is required. Therefore, we are studying the Ny... [more] OFT2019-39
pp.19-22
OCS, ITE-BCT, OFT, IEE-CMN [detail] 2019-11-22
11:20
Yamaguchi Kaikyo-Messe-Shimonoseki Simple equations for evaluating chromatic dispersion of afour-mode fiber
Tomoya Kawasaki, Masaharu Ohasi, Hirokazu Kubota, Yuji Miyoshi (Osaka Prefecture Univ.) OFT2019-42
Mode division multiplexing (MDM) systems using few-mode fibers (FMFs) have been researched and developed for overcoming ... [more] OFT2019-42
pp.33-36
 Results 1 - 20 of 45  /  [Next]  
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