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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| OFT | 2017-01-20 13:30 |
Tokyo | Kikaishinko Kaikan | Measuring Method of Loss Characteristics of Few-mode Fibers Based on Impulse Response Measurement Technique Saki Nozoe, Takashi Matsui, Kyozo Tsujikawa (NTT), Masaaki Taruno, Hirokazu Kubota, Masaharu Ohashi (Osaka Pref. Univ.), Kazuhide Nakajima (NTT)  OFT2016-36 |
The space division multiplexing transmission based on multi-core fiber and few-mode fiber (FMF) has been currently attra... [more] | OFT2016-36 pp.5-9 |
| OFT | 2016-05-26 16:25 |
Okayama | Okayama International Center | Mode dependent loss measurement of few mode fibers using conventional OTDR HIrokazu Kubota, Yuji Miyoshi, Masaharu Ohashi (Osaka Pref. Univ.), Takayoshi Mori, Takashi Matsui, Kazuhide Nakajima (NTT) OFT2016-5 |
(Advance abstract in Japanese is available) [more] | OFT2016-5 pp.17-20 |
| LQE, EST, OPE, EMT, PN, MWP, IEE-EMT, PEM [detail] | 2016-01-28 15:20 |
Hyogo | [Invited Talk]
Fundamentals of Optical Fibers and Its Trend Masaharu Ohashi (Osaka Pref. Univ.) PN2015-43 EMT2015-94 OPE2015-156 LQE2015-143 EST2015-100 MWP2015-69 |
It is about 30 years since an optical fiber was introduced into commercial optical communication systems. Since then, op... [more] | PN2015-43 EMT2015-94 OPE2015-156 LQE2015-143 EST2015-100 MWP2015-69 pp.51-56 |
|
| OFT | 2014-10-24 09:35 |
Hyogo | Mode Coupling Coefficient Measurement of a Two-Mode Fiber Using Bending Method Haruki Moriyama, Hirokazu Kubota, Yuji Miyoshi, Masaharu Ohashi (Osaka Prefecture Univ.) OFT2014-32 |
(Advance abstract in Japanese is available) [more] | OFT2014-32 pp.51-54 |
|
| OCS, OFT (Joint) |
2014-08-29 13:25 |
Hokkaido | Kushiro Royal Inn | Application of LPFG with a heat shrinkable tube to vibration sensor Yuki Okuno, Masaharu Ohashi, Yuji Miyoshi, Hirokazu Kubota (Osaka Pref. Univ.) OFT2014-20 |
Mechanically long period fiber grating (MLPFG) with a heat-shrinkable tube has some advantages that it is cheap and fabr... [more] | OFT2014-20 pp.23-26 |
| PN, NS, OCS (Joint) |
2014-06-27 10:25 |
Oita | B-ConPlaza | Nyquist OTDM scheme using optical optical correlation receiver Yuji Miyoshi, Kenyu Yoshida, Masaharu Ohashi, Hirokazu Kubota (Osaka Pref. Univ.) OCS2014-20 |
We propose a Nyquist optical time division multiplexing transmission scheme using optical root-Nyquist pulses and an opt... [more] | OCS2014-20 pp.41-45 |
| OCS, OPE, OFT (Joint) [detail] |
2014-02-27 16:40 |
Okinawa | nest HOTEL Naha | [Invited Talk]
Recent Development of Few Mode Fibers and Unresolved Issues for the Practical Applications Nobuo Kuwaki, Ryo Maruyama, Shoichiro Matsuo (Fujikura), Masaharu Ohashi (Osaka Prefecture Univ.) OCS2013-105 OFT2013-62 OPE2013-212 |
The traffic of backbone network has been increasing rapidly according to the growth of broadband users in worldwide. In ... [more] | OCS2013-105 OFT2013-62 OPE2013-212 pp.23-28(OCS), pp.41-46(OFT), pp.41-46(OPE) |
| OFT | 2013-10-24 14:15 |
Nara | A study on the resolution time of optical sampling schemes using NOLM and degenerate FWM Shinya Watanabe, Yuji Miyoshi, Masaharu Ohashi, Hirokazu Kubota (Osaka Prefecture Univ.) OFT2013-25 |
We compare with time resolution and required power of the sampling pulse about two optical sampling methods using degene... [more] | OFT2013-25 pp.15-19 |
|
| OFT | 2013-10-25 11:10 |
Nara | Relationship between Index-Parameter and Crosstalk in Multi-Core Fiber Shuhei Yamamoto, Masaharu Ohashi, Yuji Miyoshi (Osaka Prefecture Univ.) OFT2013-36 |
(Advance abstract in Japanese is available) [more] | OFT2013-36 pp.67-70 |
|
| OCS | 2013-07-26 10:40 |
Tokyo | Sumida-Sangyo-Kaikan | [Tutorial Invited Lecture]
Fundamentals of optical fibers Masaharu Ohashi (Osaka Prefecture Univ.) OCS2013-30 |
It is about 30 years since an optical fiber was introduced into commercial optical communication systems. Since then, op... [more] | OCS2013-30 pp.61-66 |
| OFT | 2013-01-25 11:20 |
Tokushima | Investigation of Offset-Launch Characteristics for Two-Mode Optical Fiber using FE-BPM Ryo Maruyama, Nobuo Kuwaki, Kiminori Sato, Shoichiro Matsuo (Fujikura), Masaharu Ohashi (Osaka Prefecture Univ.) OFT2012-67 |
[more] | OFT2012-67 pp.71-76 |
|
| OFT | 2012-10-25 16:25 |
Yamaguchi | KAIKYO MESSE SHIMONOSEKI | Transmission Characteristics of Multi-Core Fiber (MCF) with Trench-Index Cores Ro Cho, Masaharu Ohashi, Yuji Miyoshi (Osaka Prefecture Univ.) OFT2012-36 |
By using the two-core model, we clarify the effect of the index differences of the inner cladding and trench between cor... [more] | OFT2012-36 pp.21-26 |
| OCS, OFT (Joint) |
2012-08-31 09:50 |
Hokkaido | Two-mode Optical Fibers with Large-Aeff and low-DMD in the C+L-band for Mode-division Multiplexing Ryo Maruyama, Nobuo Kuwaki, Shoichiro Matsuo, Kiminori Sato (Fujikura), Masaharu Ohashi (Osaka Prefecture Univ.) OFT2012-23 |
(Advance abstract in Japanese is available) [more] | OFT2012-23 pp.23-26 |
|
| OFT | 2010-05-28 11:10 |
Hiroshima | tomo-kouminkan | Measurement technique of Raman gain efficiency spectrum distribution using two reference fibers Yasuhiro Tsutsumi, Masaharu Ohashi (Osaka Prefecture Univ.) OFT2010-14 |
A new technique for measuring Raman gain efficiency spectrum distribution using an OTDR and two reference fibers is prop... [more] | OFT2010-14 pp.67-70 |
| OFT, OCS (Joint) |
2009-08-28 10:25 |
Hokkaido | Simple Technique for Measuring Raman Gain Efficiency Spectrum Based on OTDR Yasuhiro Tsutsumi, Masaharu Ohashi (Osaka Prefecture Univ.) OFT2009-25 |
A simple technique for measuring Raman gain efficiency spectrum distribution using an OTDR is proposed. Our technique ba... [more] | OFT2009-25 pp.41-44 |
|
| OFT, OCS, ITE-BCT, IEE-CMN (Joint) [detail] |
2008-11-21 11:00 |
Oita | Study on Measurement Technique for Raman Gain Efficiency Distribution Based on Bidirectional OTDR without Pump Light. Kyoichi Oro, Ikuo Yamashita (Kansai Electric Power), Yasuhiro Tsutsumi, Tetsuro Yabu, Masaharu Ohashi (Osaka Prefecture University) |
An indirect measurement technique for Raman gain efficiency distribution along the transmission line based on the OTDR i... [more] | OCS2008-99 OFT2008-64 pp.81-84(OCS), pp.91-94(OFT) |
|
| MW | 2006-09-05 13:25 |
Tokyo | Planar Hybrid Resonators Consisting of a Half-Wavelength and a Quarter-Wavelength Resonator Kenta Ishimaru, Shoichi Kitazawa, Masahiro Geshiro, Masaharu Ohashi (Osaka Prefecture Univ.), Hideaki Fujimoto (Kinki Univ.), Koji Wada (Univ. of Electro-Comm.) |
[more] | MW2006-91 pp.93-96 |
|
| OCS, OFT (Joint) |
2006-08-25 09:50 |
Miyagi | A formulation for solving cladding modes of round optical fiber Tetsuro Yabu, Masaharu Ohashi (Osaka Pref. Univ.) OFT2006-25 |
The multi-layer method is one of the most popular method to analyze round symmetrical optical fiber because of its high ... [more] | OFT2006-25 pp.47-55 |
|
| OCS, NS (Joint) |
2006-01-26 13:05 |
Osaka | Osaka Institute of Technologies | Meaurement technique of the fiber parameter distributions by using unidirectional OTDR Junichi Yamamoto, Tetsuro Yabu (Osaka Prefecture Univ.), Kazuhide Nakajima (NTT), Masaharu Ohashi (Osaka Prefecture Univ.) |
Receiver linearity of OTDR is investigated experimentally. As a result,it is shown that the OTDR linearity should be com... [more] | OCS2005-89 pp.1-6 |
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