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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 44  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
OFT 2020-10-09
13:50
Online Online [Invited Talk] Brillouin gain control via acoustic wave interference in polarization-maintaining fiber
Youhei Okawa, Kazuo Hotate (TTI) OFT2020-33
We propose and demonstrate a method for controlling Brillouin gain with light in a phase-sensitive manner. Our results s... [more] OFT2020-33
pp.103-108
OPE, OCS, OFT
(Joint) [detail]
2015-02-19
14:50
Kagoshima   Brillouin Optical Correlation Domain Reflectometry with Lock-in Detection Scheme
Yuguo Yao, Masato Kishi, Kazuo Hotate (Todai) OCS2014-110 OFT2014-67 OPE2014-212
We have proposed a Brillouin optical correlation domain reflectometry (BOCDR) with lock-in detection scheme. The weak an... [more] OCS2014-110 OFT2014-67 OPE2014-212
pp.41-46(OCS), pp.57-62(OFT), pp.57-62(OPE)
OCS, OPE, OFT
(Joint) [detail]
2014-02-28
15:25
Okinawa nest HOTEL Naha Suppression of Background Noise in BOCDR with Phase Modulation
Ora Matsuoka, Masato Kishi, Kazuo Hotate (Univ. of Tokyo) OCS2013-125 OFT2013-79 OPE2013-239
(Advance abstract in Japanese is available) [more] OCS2013-125 OFT2013-79 OPE2013-239
pp.135-139(OCS), pp.131-135(OFT), pp.185-189(OPE)
OCS, OPE, OFT
(Joint) [detail]
2014-02-28
15:50
Okinawa nest HOTEL Naha Discriminative and distributed measurement of temperature and strain by simplified BOCDA with single laser
Tsuyoshi Matsumoto, Masato Kishi, Kazuo Hotate (Univ. of Tokyo) OCS2013-126 OFT2013-80 OPE2013-240
A simplified BOCDA system for discriminative and distributed measurement of temperature and strain is proposed and demon... [more] OCS2013-126 OFT2013-80 OPE2013-240
pp.141-146(OCS), pp.136-142(OFT), pp.191-196(OPE)
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 2011-05-27
10:25
Kagoshima   Observation of stimulated Brillouin scattering in polymer optical fiber with pump-probe technique
Yosuke Mizuno (Tokyo Inst. of Tech.), Masato Kishi, Kazuo Hotate (Univ. of Tokyo), Takaaki Ishigure (Keio Univ.), Kentaro Nakamura (Tokyo Inst. of Tech.) OFT2011-11
Stimulated Brillouin scattering (SBS) in a perfluorinated graded-index polymer optical fiber (POF) with 120-um core diam... [more] OFT2011-11
pp.49-54
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
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