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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 40  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
OFT 2023-01-19
15:35
Kyoto Campas Plaza Kyoto Influence of AD converter on eye pattern measurement method of Nyquist WDM signal using optical correlation detection
Kohei Ikehata (Osaka Prefecture Univ.), Yuji Miyoshi, Hirokazu Kubota (Osaka Metropolitan Univ.)
 [more]
OFT 2023-01-19
16:00
Kyoto Campas Plaza Kyoto Broadband LPFG mode converter
Jumpei Okagaki, Hirokazu kubota, Yuji Miyoshi (Osaka Metropolitan Univ.)
 [more]
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
OFT 2019-05-16
14:00
Osaka I-site NANBA OFT2019-9 In recent years, internet traffic has been increasing, and Nyquist optical time division multiplexing (N-OTDM) transmiss... [more] OFT2019-9
pp.37-40
OFT 2019-05-16
16:00
Osaka I-site NANBA [Poster Presentation] Loss Characteristics in Anti-Resonant Small-Core Fibers
Tatsuya Terai, Hirokazu Kubota, Yuji Miyoshi, Masaharu Ohashi (Osaka Prefecture Univ.) OFT2019-17
 [more] OFT2019-17
pp.73-76
OFT 2019-05-16
16:00
Osaka I-site NANBA [Poster Presentation] Electric field distribution and polarization characteristics of higher order modes propagating through elliptic core optical fiber
Tsukasa Nakashima, Hirokazu Kubota, Yuji Miyoshi, Masaharu Ohashi (Osaka Pre Univ.) OFT2019-18
In mode division multiplex communication, when using a planar lightwave circuit for mode separation, it is desirable to ... [more] OFT2019-18
pp.77-80
ITE-BCT, OCS, OFT, IEE-CMN [detail] 2018-11-08
13:45
Okayama Kurashiki-City-Geibunnkan Evaluation of group index difference of high order modes in polarization maintaining - two modes fiber by wavelength scanning
Kazuki Ikeda, Hirokazu Kubota, Yuji Miyoshi, Masaharu Ohashi (Osaka Prefecture Univ.) OFT2018-53
In LP11 mode of perfect core fiber, four modes degenerate. It is solved in PM-TMF and separated into four modes. We prop... [more] OFT2018-53
pp.5-9
ITE-BCT, OCS, OFT, IEE-CMN [detail] 2018-11-08
14:10
Okayama Kurashiki-City-Geibunnkan Nonlinear Tolerance Using Short Pulse Transmission for the Standard Single Mode Fiber
Sayato Kanoh, Yuuji Miyoshi, Hirokazu Kubota, Masaharu Ohashi (Osaka Prefecture Univ.) OFT2018-54
In the long distance optical fiber transmission system, the amplified spontaneous emission noise includes degradation of... [more] OFT2018-54
pp.11-14
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