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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| OFT, OCS, ITE-BCT, IEE-CMN (Joint) [detail] |
2012-11-22 09:25 |
Kumamoto | Longitudinal Power Decay along a Weakly Coupled Multi-Core Fiber Hiroki Hamaguchi, Itaru Ishida, Katsuhiro Takenaga, Shoichiro Matsuo (Fujikura), Kunimasa Saitoh, Masanori Koshiba (Hokkaido Univ.)  OCS2012-81 |
An estimation method of inter-core crosstalk along a multi-core fiber by fitting bi-directional optical time domain refl... [more] | OCS2012-81 pp.47-52 |
|
| OFT | 2012-05-25 12:10 |
Gifu | Hida, Earth Wisdom Center | Optical fiber line testing system technologies for reducing system cost and its application for locating damaged optical fiber cable after disasters Yoshitaka Enomoto, Kenichi Nakazawa, Wataru Kuratani, Shigeki Sako (NTT) OFT2012-17 |
We have developed optical fiber line testing system (AURORA) which can reduce construction and maintenance cost and imp... [more] | OFT2012-17 pp.77-82 |
| OPE, OFT | 2012-03-02 09:05 |
Tokyo | Optical fiber vibration sensor and application Tatsuya Kumagai, Shinobu Sato, Shinji Komatsuzaki, Teruyuki Nakamura (Hitachi Cable) OFT2011-72 OPE2011-198 |
Fiber-optic gyroscope (FOG), rotation sensor, and fiber-optic distributed temperature sensor (DTS) have been developed a... [more] | OFT2011-72 OPE2011-198 pp.1-6 |
|
| OCS, OFT, ITE-BCT, IEE-CMN (Joint) [detail] |
2011-11-18 09:55 |
Shimane | Shimane Univ. | Traffic monitoring system for optical cable transfer work efficiency Wataru Kuratani, Satoshi Shimazu, Yoshitaka Enomoto (NTT) OFT2011-54 |
In recent years, number of optical cable equipment have increased for the expansion of optical fiber network services. T... [more] | OFT2011-54 pp.37-42 |
| OCS, OFT, ITE-BCT, IEE-CMN (Joint) [detail] |
2011-11-18 14:30 |
Shimane | Shimane Univ. | OTDR measurement method for differentiating cause of loss in vicinity of fiber splice point Shiro Ryu (SoftBank Telecom) OCS2011-103 |
We have been studying a novel OTDR measurement method using a macrobending indicator to measure the cause of the loss in... [more] | OCS2011-103 pp.59-64 |
| OFT | 2011-10-20 13:00 |
Nagano | Scattering loss properties of holey fibers Kyozo Tsujikawa, Shigeru Tomita (NTT) OFT2011-31 |
It has been reported that additional scattering loss often arises in holey fibers, namely photonic crystal fiber (PCF) a... [more] | OFT2011-31 pp.1-6 |
|
| OFT | 2011-10-20 16:25 |
Nagano | Measurement of Long-haul Optical Amplifier Submarine Cable System by Coherent OTDR Employing Frequency Division Multiplexing Hiroyuki Iida, Yusuke Koshikiya, Fumihiko Ito, Kuniaki Tanaka (NTT) OFT2011-38 |
We have proposed a high sensitivity coherent optical time domain reflectometry employing frequency division multiplexing... [more] | OFT2011-38 pp.35-40 |
|
| OFT | 2011-10-21 10:55 |
Nagano | Displacement measurement of vibrated timber-framed brick wall using fiber optic sensing system Yuya Mizuno, Hiroshi Naruse, Toshikazu Hanazato, Sachiho Hanazato (Mie Univ.), Yoshiaki Tominaga (Heritage Structure Engineering Design), Tadashi Mikoshiba (NIED), Yasushi Niitsu (Tokyo Denki Univ.) OFT2011-45 |
To preserve and restore the Tomioka Silk Mill's west cocoon warehouse which is a National Important Cultural Property, f... [more] | OFT2011-45 pp.75-78 |
|
| OFT, OCS (Joint) |
2011-08-25 16:30 |
Hokkaido | Location and Facility Database-Free Maintenance System for Optical Fiber Network employing GE-PON packets capture Nazuki Honda, Tetsuya Manabe, Satoshi Shimazu, Yuji Azuma (NTT) OFT2011-20 |
We propose a maintenance system without a facility database for locating faults with high accuracy in optical fiber line... [more] | OFT2011-20 pp.21-24 |
|
| OFT, OCS (Joint) |
2011-08-26 14:05 |
Hokkaido | Fiber-Optic Distributed Temperature Measurement With Very High Resolution Over Long Range Based on Rayleigh Backscatter Traces Obtained With Coherent OTDR Akio Togo, Yuta Iitsuka, Ryosuke Shimano, Hisashi Izumita, Yahei Koyamada (Ibaraki Univ.) OFT2011-25 |
Experiments and numerical simulations were conducted to find a possible performance of a technique for measuring distrib... [more] | OFT2011-25 pp.43-48 |
|
| OFT, OCS (Joint) |
2011-08-26 14:30 |
Hokkaido | Distributed vibration ditection with very high sensitivity using coherent OTDR Yuta Iitsuka, Akio Togo, Hisashi Izumita, Yahei Koyamada (Ibaraki Univ.) OFT2011-26 |
This paper presents some experimental results on the distributed vibration detection along a fiber based on the Rayleigh... [more] | OFT2011-26 pp.49-52 |
|
| OFT | 2010-05-28 09:20 |
Hiroshima | tomo-kouminkan | [Special Invited Talk]
The latest trend of optical fiber sensing technology Shoji Adachi (Yokogawa Electric Corp.) OFT2010-11 |
Smart structures and materials in which an optical fiber acts as a sensor have many features in health monitoring, such ... [more] | OFT2010-11 pp.51-56 |
| OFT | 2010-05-28 10:45 |
Hiroshima | tomo-kouminkan | Ultra High Dynamic Range Coherent Optical Time Domain Reflectometry Employing Frequency Division Multiplexing Hiroyuki Iida, Yusuke Koshikiya, Fumihiko Ito, Kuniaki Tanaka (NTT Corp.) OFT2010-13 |
We report ultra high dynamic range coherent optical time domain reflectometry employing frequency division multiplexing ... [more] | OFT2010-13 pp.63-66 |
| 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, IEE-CMN, ITE-BCT (Joint) [detail] |
2009-11-27 11:55 |
Fukushima | Improvement water sensor module for detecting water in cable joints Kenichi Nakazawa (NTT Corp.), Tsunekazu Watanabe (NTT WEST), Yoshitaka Enomoto, Wataru Kuratani, Hisashi Fujimoto (NTT Corp.) OFT2009-60 |
This paper describes new water sensor modules for detecting underground closures that water has penetrated. We evaluated... [more] | OFT2009-60 pp.35-39 |
|
| OFT, OCS, IEE-CMN, ITE-BCT (Joint) [detail] |
2009-11-27 14:35 |
Fukushima | [Invited Talk]
Proposal of fiber macrobending identification method Shiro Ryu, Mikio Yagi (SoftBank Telecom) OCS2009-98 OFT2009-61 |
Macrobending loss that occurs at a junction point of optical cables might become harmful to system operation since the l... [more] | OCS2009-98 OFT2009-61 pp.87-92(OCS), pp.41-46(OFT) |
|
| OFT | 2009-10-29 13:20 |
Oita | New Optical Fibre Line Testing System Function for Facility Location and Identification Using Multivalued Brillouin Frequency Shift Assigned Fibre Nazuki Honda, Masaaki Inoue, Noriyuki Araki, Yuji Azuma (NTT) OFT2009-33 |
We proposed a new method for locating and identifying a facility with high accuracy that uses absolute location markers ... [more] | OFT2009-33 pp.1-5 |
|
| OFT, OCS (Joint) |
2009-08-27 09:25 |
Hokkaido | Water surface ranging with using OTDR Masahiro Takanashi, Yoshiaki Yamabayashi (Chitose Inst. of Sci and Tech.) OCS2009-29 |
According to flying-boat pilots, even in broad daylight, it is sometimes hard to recognize the water-surface on which th... [more] | OCS2009-29 pp.1-4 |
|
| OFT, OCS (Joint) |
2009-08-27 15:25 |
Hokkaido | Optical fiber line testing system employing test light bypass module for in-service monitoring of ADM ring networks Yoshitaka Enomoto (NTT Corp.) OFT2009-22 |
This paper describes a novel optical fiber line testing system operating at 1650 nm using test light bypass modules. We ... [more] | OFT2009-22 pp.25-30 |
|
| 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 |
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