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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| EMT, PN, MWPTHz, IEE-EMT [detail] | 2024-01-23 14:20 |
Kyoto | Kyoto Univ. Yoshida Campus | Optical coupling alignment measurement into a silicon waveguide by analyzing spectral changes of probe pulse after propagating through the waveguide. Junpei Funatsuki, Reiji Kawanami, Tsuyoshi Konishi (Osaka Univ.)  PN2023-64 EMT2023-104 MWPTHz2023-92 |
[more] | PN2023-64 EMT2023-104 MWPTHz2023-92 pp.88-91 |
| PN | 2023-11-16 16:55 |
Ehime | (Primary: On-site, Secondary: Online) |
Down Conversion Less Monitoring Method for Beyond 5G RF Signal in RoF Tomoki Tsuji, Shizen Nakayama, Tsuyoshi Konishi (Osaka Univ.) PN2023-43 |
Various research and development on Beyond 5G is being actively achieved and they aim to build a new communications infr... [more] | PN2023-43 pp.38-42 |
| PN | 2022-11-08 11:25 |
Kochi | (Primary: On-site, Secondary: Online) |
Data aggregation technique for high-frequency band migration using chromatic dispersion control Masayuki Makino, Tomoki Tsuji (Osaka Univ.), Junya Nishioka, Seiki Nakamura, Takatoshi Akamatsu, Yoshiaki Konishi, Naoki Suzuki (MELCO), Tsuyoshi Konishi (Osaka Univ.) PN2022-29 |
We have proposed a frequency band migration technology from the low-frequency of the MHz band to the high-frequency of t... [more] | PN2022-29 pp.44-47 |
| PN | 2022-03-01 16:10 |
Online | Online | [Invited Lecture]
Enhancement of measurement sensitivity in an internal structure modeling method for silicon waveguides using nonlinear spectral change Tomoya Kurahashi, Masayuki Makino, Ryohei Kamikawa, Tsuyoshi Konishi (Osaka Univ.) PN2021-64 |
The evaluation of the fabrication quality of microfabricated optical devices requires modeling their internal structures... [more] | PN2021-64 pp.60-64 |
| 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.) PN2021-28 |
We numerically and experimentally investigated a structure modeling method using nonlinear spectral broadening. Structur... [more] | PN2021-28 pp.13-16 |
| 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 |
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