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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 37  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
OFT 2013-01-24
13:50
Tokushima   Study for Fiber Identification Signal Input Part with Local Injection Technique
Makoto Shimpo, Hidenobu Hirota, Nazuki Honda, Tomohiro Kawano, Tetsuya Manabe, Yuji Azuma (NTT) OFT2012-54
This paper discuss a method for using the fiber identification located longer direction in access network. We propose th... [more] OFT2012-54
pp.9-12
OFT 2013-01-24
16:50
Tokushima   Hybrid Delay Adjustment Method for Optical Access Line Switching System
Kazunori Katayama, Kazutaka Noto, Masaaki Inoue, Tetsuya Manabe, Yuji Azuma (NTT) OFT2012-60
In order to realize an efficient operation for optical access lines, we have studied optical line switching method witho... [more] OFT2012-60
pp.43-46
OFT, OCS, ITE-BCT, IEE-CMN
(Joint) [detail]
2012-11-21
16:50
Kumamoto   Uninterruptible Optical Access Line Switching System using Electric Variable Delay Line
Tetsuya Manabe, Kazutaka Noto, Kazunori Katayama, Masaaki Inoue, Yuji Azuma (NTT) OFT2012-46
An optical line switching method that does not interrupt communication is urged for an efficient field maintenance opera... [more] OFT2012-46
pp.23-26
OFT 2012-10-26
09:00
Yamaguchi KAIKYO MESSE SHIMONOSEKI Cable transfer system Using Local Injection and Detection Technique
Nazuki Honda, Tomohiro Kawano, Hidenobu Hirota, Makoto Shimpo, Tetsuya Manabe, Yuji Azuma (NTT) OFT2012-40
 [more] OFT2012-40
pp.43-46
OFT 2012-10-26
09:25
Yamaguchi KAIKYO MESSE SHIMONOSEKI A study on the error-free optical access line switching technique using optical switches
Kazutaka Noto, Masaaki Inoue, Nazuki Honda, Kazunori Katayama, Tetsuya Manabe, Yuji Azuma (NTT) OFT2012-41
We investigated a optical path length adjustment with series-connected optical switches to realize error-free optical li... [more] OFT2012-41
pp.47-50
OFT 2012-10-26
10:30
Yamaguchi KAIKYO MESSE SHIMONOSEKI Cord identification technique using higher order guiding modes of visible light for low bending loss fibers
Lin Ma, Kyozo Tsujikawa, Shinichi Aozasa, Yuji Azuma (NTT) OFT2012-43
We propose a cord identification technique for ultra-low bending loss fiber using higher order modes of visible light. T... [more] OFT2012-43
pp.55-60
OCS, OFT
(Joint)
2012-08-31
10:50
Hokkaido   Wideband WDM Coherent Optical MIMO Transmission over Graded-Index Multi-mode Fiber by Using Selective Mode Excitation
Takayoshi Mori, Taiji Sakamoto, Takashi Yamamoto, Yuji Azuma (NTT) OCS2012-35
We proposed a selective mode excitation technique to reduce MIMO DSP for a WDM MIMO system. We show numerically that we ... [more] OCS2012-35
pp.37-42
OCS, OFT
(Joint)
2012-08-31
16:25
Hokkaido   The Navigation System Using Augmented Reality Technology for Distribution Work
Ikutaro Ogushi, Kazunori Katayama, Yuji Azuma (NTT) OFT2012-29
This paper proposes a new navigation system using augmented reality (AR) technology for distribution work in central off... [more] OFT2012-29
pp.55-60
OFT 2012-05-25
10:15
Gifu Hida, Earth Wisdom Center Estimation of the Leading Wire Position with Self Localization
Tomohiro Kawano, Tetsuya Manabe, Yuji Azuma (NTT) OFT2012-13
To provide a communication service for customers, field engineers must install cables from outside into the user's resid... [more] OFT2012-13
pp.61-64
OPE, OFT 2012-03-02
16:15
Tokyo   Optimized design of incoming light structure for coated fiber with local-light coupling technique
Hidenobu Hirota, Kazutaka Noto, Nazuki Honda, Tetsuya Manabe, Yuji Azuma (former NTT) OFT2011-84 OPE2011-210
 [more] OFT2011-84 OPE2011-210
pp.57-60
OFT 2012-01-20
10:30
Kagawa   Optical filter checking method for construction work in PON branching region using local-light coupling technique
Nazuki Honda, Kazutaka Noto, Hidenobu Hirota, Tetsuya Manabe, Yuji Azuma (NTT) OFT2011-68
 [more] OFT2011-68
pp.59-62
OFT 2012-01-20
10:55
Kagawa   Study on Traffic Monitor system using local-light coupling technique
Kazutaka Noto, Nazuki Honda, Hidenobu Hirota, Tetsuya Manabe, Yuji Azuma (former NTT) OFT2011-69
 [more] OFT2011-69
pp.63-66
OFT 2012-01-20
11:45
Kagawa   A study of resilient FTTH network architecture -- Ladder networks based on hybrid WDM/TDM-PON --
Makoto Tsubokawa, Takashi Kido (Waseda Univ.), Nazuki Honda, Yuji Azuma (NTT) OFT2011-71
Resilient FTTH architecture with a cable-route protection function is proposed. The ladder network based on hybrid WDM/T... [more] OFT2011-71
pp.71-76
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 2011-05-26
13:50
Kagoshima   Local-light Injection Coupling System
Kazutaka Noto, Kuniaki Tanaka, Nazuki Honda, Tetsuya Manabe, Yuji Azuma (NTT) OFT2011-3
 [more] OFT2011-3
pp.11-14
OFT, OPE 2011-03-04
11:05
Tokyo Kikai-Shinko-Kaikan Bldg. A study on the interruption-free optical access line transfer system using polarization-maintaining optical switches
Koichi Yoshida, Kuniaki Tanaka, Kazutaka Noto, Tetsuya Manabe, Yuji Azuma (NTT) OFT2010-67 OPE2010-171
 [more] OFT2010-67 OPE2010-171
pp.21-26
OFT 2011-01-28
11:25
Nagasaki   Investigation of endface sealing technique for Hole-assisted fiber by using CO2 laser
Masaki Waki, Yuji Azuma (NTT) OFT2010-61
 [more] OFT2010-61
pp.71-74
ITE-BCT, OCS, OFT, IEE-CMN
(Joint) [detail]
2010-11-19
10:30
Osaka SEI Ikoma Seminar House Facility Database-Free Maintenance System for Optical Fiber Network Combined with GE-PON OAM Function
Nazuki Honda (NTT), Hiroshi Watanabe (NTT East), Noriyuki Araki, Yuji Azuma (NTT) OFT2010-43
 [more] OFT2010-43
pp.25-28
OFT 2010-10-25
10:30
Saitama Nippon Institute of Technology Highly reliable optical fiber distribution facilities in central office employing single-mode hole-assisted fiber cord
Shinichi Aozasa, Yoshitaka Enomoto, Hiroyuki Oohashi, Yuji Azuma (NTT) OFT2010-28
We realized single-mode hole-assisted optical fiber (HAF) cord whose fiber has a superior bending loss characteristic th... [more] OFT2010-28
pp.1-6
OCS, OFT
(Joint)
2010-08-26
15:05
Hokkaido Asahikawa Tokiwa Shimin Hall Reliability Improvement of Error-Free Optical Line Switching Technique -- Reduction Method of Beat Noise Caused by Dualized Communication --
Kuniaki Tanaka, Koichi Yoshida, Kazutaka Noto, Tetsuya Manabe, Yuji Azuma (NTT Corp.) OFT2010-18
The method of switching the transmission line without interrupting service while temporarily dualing communication lines... [more] OFT2010-18
pp.11-16
 Results 1 - 20 of 37  /  [Next]  
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