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 Results 1 - 20 of 34  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
OFT, ITE-BCT, OCS, IEE-CMN [detail] 2020-11-13
16:10
Online Online Commercialization of real-time distributed acoustic fiber optic sensing (DAS) utilizing chirped pulse
Kinzo Kishida, Artur Guzik, Li Ttken, Nishiguchi Kenichi, Daiji Azuma (Neubrex), Qingwen Liu, Zuyuan He (SJTU) OFT2020-44
Distributed Acoustic Sensing (DAS) in optical fibers detects dynamic strain or sound waves by measuring the phase change... [more] OFT2020-44
pp.39-44
OFT, OPE, OCS
(Joint) [detail]
2013-03-01
14:50
Tokyo   Measurement of Brillouin Frequency Shift Distribution in PLC by Brillouin Optical Correlation Domain Analysis
Ryuji Watanabe, Masato Kishi, Zuyuan He, Kazuo Hotate (Univ. of Tokyo) OCS2012-111 OFT2012-87 OPE2012-205
We have measured Brillouin frequency shift distribution in a planar lightwave circuit (PLC) by Brillouin optical correla... [more] OCS2012-111 OFT2012-87 OPE2012-205
pp.75-80(OCS), pp.95-100(OFT), pp.95-100(OPE)
OFT 2011-10-21
11:20
Nagano   Closed-loop Resonator Fiber Optic Gyro with All Digital Signal Processing
Xijing Wang, Masato Kishi, Zuyuan He, Kazuo Hotate (Univ. of Tokyo) OFT2011-46
A closed-loop resonator fiber optic gyro (R-FOG) with all digital signal processing is experimentally demonstrated. The ... [more] OFT2011-46
pp.79-84
OFT, OCS
(Joint)
2011-08-26
15:30
Hokkaido   An Ultra-High-Resolution Large-Dynamic-Range Fiber Optic Static Strain Sensor Using Pound-Drever-Hall Demodulation Technique
Qingwen Liu, Zuyuan He, Tomochika Tokunaga, Kazuo Hotate (Univ. of Tokyo) OFT2011-28
In this paper we report the realization of a fiber optic static strain sensor with ultra-high resolution and large dynam... [more] OFT2011-28
pp.59-62
OFT, OCS
(Joint)
2011-08-26
15:55
Hokkaido   Performance Improvement of the Resonator Fiber Optic Gyro by Precisely Controlling the Bipolar Digital Serrodyne Scheme
Xijing Wang, Masato Kishi, Zuyuan He, Kazuo Hotate (Univ. of Tokyo) OFT2011-29
Performance improvement of the resonator fiber optic gyro (R-FOG) is demonstrated by precisely controlling the bipolar d... [more] OFT2011-29
pp.63-68
OFT 2011-05-26
13:00
Kagoshima   Optical Coupler Using Photonic Bandgap Fiber
Masashi Kikuchi (Univ. of Tokyo), Hirokazu Kubota (NTT), Zuyuan He, Kazuo Hotate (Univ. of Tokyo) OFT2011-1
Photonic bandgap fibers (PBFs) possess low nonlinearity and stability to temperature due to a hollow-core. These charact... [more] OFT2011-1
pp.1-4
OFT, OPE 2011-03-04
15:50
Tokyo Kikai-Shinko-Kaikan Bldg. Distributed sensing inside Long-length FBG beyond Coherence Length
Koji Kajiwara, Zuyuan He, Kazuo Hotate (Tokyo Univ.) OFT2010-74 OPE2010-178
 [more] OFT2010-74 OPE2010-178
pp.59-64
OFT 2011-01-27
16:00
Nagasaki   Measurement range elongation based on a temporal gating scheme in Brillouin optical correlation domain distributed discrimination system for strain and temperature operated by a single laser
Rodrigo Kendy Yamashita (Univ. of Tokyo), Weiwen Zou (Shanghai Jiao Tong Univ.), Zuyuan He, Kazuo Hotate (Univ. of Tokyo) OFT2010-53
We have demonstrated distributed discrimination of strain and temperature by localizing and scanning both the Stimulated... [more] OFT2010-53
pp.31-36
OFT 2011-01-27
16:25
Nagasaki   Fading noise suppression in OFDR by optical frequency comb and variable delay line
Takushi Kazama, Zuyuan He (Univ. Tokyo), Yusuke Koshikiya, Xinyu Fan, Fumihiko Ito (NTT), Kazuo Hotate (Univ. Tokyo) OFT2010-54
Optical reflectometry is a technique for distributed measurements which gives the profile of reflections and backscatter... [more] OFT2010-54
pp.37-42
ITE-BCT, OCS, OFT, IEE-CMN
(Joint) [detail]
2010-11-19
14:00
Osaka SEI Ikoma Seminar House Confined Modes of Large Core Photonic Bandgap Fiber
Hirokazu Kubota (NTT), Masashi Kikuchi, Zuyuan He, Kazuo Hotate (Tokyo Univ.) OCS2010-98
Confined modes of photonic bandgap fiber with core area compatible to standard single mode fiber is investigated. Caref... [more] OCS2010-98
pp.63-66
OCS, OFT
(Joint)
2010-08-27
09:10
Hokkaido Asahikawa Tokiwa Shimin Hall cm-level Resolution Reflectometry over 10-km Range with Phase Noise and Chromatic Dispersion Simultaneous Compensation
Yusuke Koshikiya, Xinyu Fan, Fumihiko Ito (NTT Corp.), Zuyuan He, Kazuo Hotate (The Univ. of Tokyo) OCS2010-45
(Advance abstract in Japanese is available) [more] OCS2010-45
pp.53-58
OFT 2010-01-21
13:00
Okinawa   Rayleigh scattering-induced noise and spatial resolution in Brillouin optical correlation-domain reflectometry
Yosuke Mizuno, Weiwen Zou, Zuyuan He, Kazuo Hotate (Univ. of Tokyo) OFT2009-66
According to the basic theory on Brillouin optical correlation-domain reflectometry (BOCDR), the modulation amplitude of... [more] OFT2009-66
pp.21-26
OFT 2010-01-21
13:25
Okinawa   Single-End-Access Distributed Fiber-Optic Sensor Based on Stimulated Brillouin Scattering
Weiwen Zou, Zuyuan He, Kazuo Hotate (Univ. Tokyo) OFT2009-67
 [more] OFT2009-67
pp.27-32
OFT 2010-01-21
15:40
Okinawa   Optical Reflectometry Using Optical Frequency Comb with Multi-Phase Modulation
Hiroshi Takahashi, Zuyuan He, Kazuo Hotate (Univ. of Tokyo) OFT2009-72
As a technology to diagnose the breakdown points in fiber optic networks/devices, various kinds of optical fiber reflect... [more] OFT2009-72
pp.55-60
OFT 2010-01-22
09:20
Okinawa   Combination of External Phase Modulation and Synthesis of Optical Coherence Function for Improvement of Spatial Resolution in Long-length FBG Sensing System
Koji Kajiwara, Zuyuan He, Kazuo Hotate (Univ. of Tokyo) OFT2009-76
External phase modulation is newly combined with the synthesis of optical coherence function for improvement of spatial ... [more] OFT2009-76
pp.77-82
OFT 2010-01-22
09:45
Okinawa   An ultra-high strain-resolution FBG sensor for static strain measurement using cross-correlation processing
Qingwen Liu, Zuyuan He, Tomochika Tokunaga, Kazuo Hotate (Univ. of Tokyo) OFT2009-77
We report the research on ultra-high strain-resolution fiber sensors for static strain measurement with a pair of fiber ... [more] OFT2009-77
pp.83-88
OFT 2010-01-22
10:10
Okinawa   Automated Suppression of Polarization-Fluctuation in Resonator Fiber Optic Gyro by a Resonator with Twin 90^o Polarization-Axis Rotated Splices
Xijing Wang, Zuyuan He, Kazuo Hotate (Univ. of Tokyo.) OFT2009-78
Automated suppression of polarization-fluctuation in a fiber optic gyro made of a polarization-maintaining fiber (PMF) r... [more] OFT2009-78
pp.89-94
OFT 2009-05-29
09:30
Shizuoka   High-accuracy optical frequency domain reflectometry by single-sweep frequency-averaging
Zuyuan He, Rodrigo Kendy Yamashita, Kazuo Hotate (Univ. of Tokyo) OFT2009-11
With fine spatial resolution, high sensitivity and broad dynamic range, optical frequency domain reflectometry (OFDR) ha... [more] OFT2009-11
pp.51-54
OFT 2009-05-29
09:55
Shizuoka   Optical Coherence Domain Reflectometry Using Optical Frequency Comb
Zuyuan He, Hiroshi Takahashi, Kazuo Hotate (The Univ. of Tokyo) OFT2009-12
Various kinds of optical fiber reflectometries are developed with rapidly improved performance as a technology to diagno... [more] OFT2009-12
pp.55-60
OFT 2009-05-29
10:20
Shizuoka   High-Speed Distributed Sensing Based on Brillouin Optical Correlation Domain Analysis
Weiwen Zou, Zuyuan He, Kazuo Hotate (Univ. of Tokyo) OFT2009-13
A novel method is proposed to realize high-speed distributed sensing based on Brillouin optical correlation domain analy... [more] OFT2009-13
pp.61-66
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