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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 23  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
PN 2021-11-11
13:00
Online Online Structure modeling of silicon waveguide devices using nonlinear spectral broadening
Tomoya Kurahashi, Masayuki Makino, Ryohei Kamikawa, Tsuyoshi Konishi (Osaka Univ.)
(To be available after the conference date) [more]
OCS, CS
(Joint)
2021-01-15
16:50
Online Online [Special Invited Talk] PSK signal reception without a local oscillator based on fractional Fourier transform
Tsuyoshi Konishi, Ryohei Kanikawa, Yu Yamasaki (Osaka Univ.) CS2020-78
(Advance abstract in Japanese is available) [more] CS2020-78
pp.14-17
MWP, PN, EMT, PEM, IEE-EMT [detail] 2020-01-30
14:55
Kyoto Dosisha Univ. Verification of self-phase modulation-based nonlinear optical device using Si3N4 waveguide
Koji Takahashi, Daiki Ishihara, Yuta Kaihori (Osaka Univ.), Takashi Inoue (Hamamatsu Photonics), Tsuyoshi Konishi (Osaka Univ.) PN2019-42 EMT2019-82 MWP2019-56
A Si3N4 waveguide is expected to solve the issue of two photon absorption (TPA) on a Si waveguide at relatively high pow... [more] PN2019-42 EMT2019-82 MWP2019-56
pp.45-48
PN 2019-04-26
13:25
Tokyo The University of Electro-Communication, Build E-3, Hall 301 Extending transmission distance using optical fractional OFDM
Yu Yamasaki, Tomotaka Nagashima (Osaka Univ.), Gabriella Cincotti (Univ. Roma), Satoshi Shimizu, Hiroyuki Uenohara (NICT), Hiroyuki Uenohara (Tokyo Institute of Technology), Tsuyoshi Konishi (Osaka Univ.) PN2019-2
Optical fractional OFDM can reduce peak-to-average power ratio (PAPR) which is an issue in optical OFDM. Because of this... [more] PN2019-2
pp.7-12
PN, EMT, OPE, EST, MWP, LQE, IEE-EMT [detail] 2019-01-18
14:20
Osaka Osaka University Nakanoshima Center Spectral efficiency evaluation in optical fractional OFDM
Yu Yamasaki, Tomotaka Nagashima (Osaka Univ.), Gabriella Cincotti (Univ. Roma Tre), Satoshi Shimizu, Wada Naoya (NICT), Hiroyuki Uenohara (TIT), Tsuyoshi Konishi (Osaka Univ.) PN2018-81 EMT2018-115 OPE2018-190 LQE2018-200 EST2018-128 MWP2018-99
Optical fractional OFDM based on fractional Fourier Transform can reduce peak-to-average power ratio (PAPR) which is an ... [more] PN2018-81 EMT2018-115 OPE2018-190 LQE2018-200 EST2018-128 MWP2018-99
pp.271-275
PN 2018-03-05
13:55
Kagoshima Minami Tanemachi Shoko Kaikan Intensity jitter suppression and quantum fluctuation for resolution improvement of photonic analog-to-digital conversion
Tsuyoshi Konishi, Yu Yamasaki (Osaka Univ.) PN2017-94
(To be available after the conference date) [more] PN2017-94
pp.19-23
OFT, OCS, IEE-CMN, ITE-BCT [detail] 2017-11-23
14:25
Osaka Kansa-Univ. Umeda Campus SNR improvement of Fractional OFDM-based serial-to-parallel conversion for Nyquist OTDM signals
Tsuyoshi Konishi, Yu Yamasaki, Motoki Hiraoka (Osaka Univ.) OCS2017-58
(Advance abstract in Japanese is available) [more] OCS2017-58
pp.7-10
PN 2017-03-07
09:30
Okinawa Ohama Nobumoto Memorial Hall (Okinawa) Experimental connectivity test of all-optical analog to digital conversion and multilevel signal in all-optical fractional OFDM receiver
Tomotaka Nagashima (Osaka Univ.), Gabriella Cincotti (Univ. Rome Tre), Takuya Murakawa (Osaka Univ.), Satoshi Shimizu (NICT), Makoto Hasegawa (Osaka Univ.), Kunihiro Hattori, Masayuki Okuno, Shinji Mino, Akira Himeno (NEL), Naoya Wada (NICT), Hiroyuki Uenohara (Tokyo Tech), Tsuyoshi Konishi (Osaka Univ.) PN2016-100
We experimentally verified a connectivity of all-optical analog to digital conversion and multilevel signal in all- opti... [more] PN2016-100
pp.93-98
OPE, OME 2015-11-27
10:45
Kagawa Sunport-hall Takamatsu Preliminary Results of Interleaving Technology for All-Optical Analog-to-Digital Converter using Soliton Self-Frequency Shift
Hiroyuki Uenohara (Tokyo Tech), Makoto Hasegawa, Tsuyoshi Konishi (Osaka Univ.) OME2015-71 OPE2015-137
All-optical analog-to-digital conversion technique becomes important to achieve high effective number of bits as well as... [more] OME2015-71 OPE2015-137
pp.37-42
PN 2015-03-18
14:50
Okinawa   [Encouragement Talk] Suppression Effect of Peak-to-average-ratio for multi-level modulation in Optical OFDM based on Fractional Fourier Transform
Tomotaka Nagashima, Takuya Murakawa, Makoto Hasegawa (Osaka Univ.), Satoshi Shimizu (NICT), Gabriella Cincotti (Univ. Rome), Kunihiro Hattori, Masayuki Okuno, Shinji Mino, Akira Himeno (NEL), Naoya Wada (NICT), Hiroyuki Uenohara (Tokyo Institute of Technology), Tsuyoshi Konishi (Osaka Univ.) PN2014-88
Nonlinear optical effects are unavoidable issues for next generation of optical networks and multi-carriers of current o... [more] PN2014-88
pp.63-68
PN 2014-09-04
14:00
Hokkaido   Suppression Effect of Peak-to-average-ratio in Optical OFDM based on Fractional Fourier Transform
Tomotaka Nagashima, Takuya Murakawa, Makoto Hasegawa (Osaka Univ.), Satoshi Shimizu (NICT), Gabriella Cincotti (Univ. Roma Tre), Kunihiro Hattori, Masayuki Okuno, Shinji Mino, Akira Himeno (NEL), Naoya Wada (NICT), Hiroyuki Uenohara (Tokyo Inst. of Tech.), Tsuyoshi Konishi (Osaka Univ.) PN2014-12
Nonlinear optical effects are unavoidable issues for next generation of optical networks and multi-carriers of current o... [more] PN2014-12
pp.7-11
OPE, OCS 2014-05-16
15:00
Tokyo Kikai-Shinko-Kaikan Bldg. [Invited Talk] Report on OFC2014: Active devices
Tsuyoshi Konishi (Osaka Univ.) OCS2014-9 OPE2014-9
This report describes trends of research and development in OFC2014 regarding active devices such as photodetector, lase... [more] OCS2014-9 OPE2014-9
pp.41-44
PN 2014-03-03
13:20
Kagawa Tokushima Bunri University Study on Transmission Technology using Optical Fractional Discrete Fourier Transform Device for Optical OFDM
Tsuyoshi Konishi (Osaka Univ.), Gabriella Cincotti (Roma Univ.), Takahiro Kodama, Takuya Murakawa, Tomotaka Nagashima, Makoto Hasegawa (Osaka Univ.), Satoshi Shimizu, Naoya Wada (NICT) PN2013-94
 [more] PN2013-94
pp.23-27
MWP, EMT, PN, LQE, OPE, EST, IEE-EMT [detail] 2014-01-24
14:00
Kyoto Doshisha University Study on Near-Infrared Range All-Optical Limiter Using Photonic Crystal Fiber
Takuya Murakawa, Ryosuke Nagao, Tsuyoshi Konishi (Osaka Univ.) PN2013-76 OPE2013-190 LQE2013-176 EST2013-125 MWP2013-96
We investigate a near-infrared range all-optical limiter to stabilize peak power fluctuations of near-infrared optical p... [more] PN2013-76 OPE2013-190 LQE2013-176 EST2013-125 MWP2013-96
pp.273-276
PN 2012-08-30
13:50
Hokkaido Kitami Institute of Technology 6-bit optical quantization using phase modulator based spectral compression
Takema Satoh (Osaka Univ.), Aymeric Van de Walle (LCFIO), Kazuyoshi Itoh, Tsuyoshi Konishi (Osaka Univ.) PN2012-16
We report the simulation result of 6-bit optical quantization using phase modulator based spectral compression. Recently... [more] PN2012-16
pp.11-15
PN 2012-08-30
14:30
Hokkaido Kitami Institute of Technology 6bit resolution performance of dual rail all-optical quantization
Tomotaka Nagashima, Takema Satoh (Osaka Univ.), Aymeric Van De Walle (LCFIO), Kazuyoshi Itoh, Tsuyoshi Konishi (Osaka Univ.) PN2012-17
We verified the quantization error improvement effect of the proposed dual rail method in 6bit optical quantization usin... [more] PN2012-17
pp.17-21
OCS, LQE, OPE 2011-10-27
09:20
Kochi Kochi University of Technology Experimental Demonstration of 10GS/s 5bit Optical Quantization for Photonic Analog-to-Digital Conversion
Takema Satoh, Koji Takahashi, Hideki Matsui, Kazuyoshi Itoh, Tsuyoshi Konishi (Osaka Univ.) OCS2011-56 OPE2011-94 LQE2011-57
We report the experimental demonstration of 10-GS/s 5-bit optical quantization using soliton self-frequency shift (SSFS)... [more] OCS2011-56 OPE2011-94 LQE2011-57
pp.13-16
PN 2009-03-09
11:25
Okinawa Yonaguni Island [Encouragement Talk] All-optical limiter based on signal form transformation -- In search of ideal limiting characteristics --
Hiroomi Goto, Tsuyoshi Konishi, Kazuyoshi Itoh (Osaka Univ.) PN2008-88
In optical networks, it is necessary to compensate optical signal intensity fluctuations for accurate data reception and... [more] PN2008-88
pp.23-28
PN, OPE, EMT, LQE 2009-01-29
15:20
Kyoto Kyoto Institute Technology (Matsugasaki Campus) [Invited Talk] Time-Frequency distribution profiling for response characteristics test of ultra-fast optical devices with optical spectrogram scope (OSS)
Tsuyoshi Konishi, Hiroomi Goto (Osaka Univ.) PN2008-52 OPE2008-155 LQE2008-152
In this paper, we review and report the optical spectrogram scope (OSS) as a powerful measurement instrument for respons... [more] PN2008-52 OPE2008-155 LQE2008-152
pp.55-58
PN 2008-03-14
10:20
Okinawa Ohama-Nobumoto-Kinenkan (Ishigakijima) Study on Effect of Signal Distortion for Extension of Dynamic Range of Optical Intensity Equalizer
Hiroomi Goto, Tsuyoshi Konishi, Takashi Nishitani, Tetsuya Enoki, Kazuyoshi Itoh (Osaka Univ.) PN2007-85
It is necessary to compensate an optical signal intensity fluctuation in optical networks for accurate data reception an... [more] PN2007-85
pp.65-68
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