研究開発

Self-assembling process of zirconium oxide suspension induced by vaporization of volatile solvents

Hiroyuki Takeno, Shin Nakazato, Toshiaki Dobashi, Masahiro Nobe, Atsumi Wakabayashi
Colloid Polym Sci (2007) 285:1029-1036
(c) Springer. Part of Springer Science+Business Media

SIMS-depth profile and microstructure studies of Ti-diffused Mg-doped near-stoichiometric lithium niobate waveguide

R. Mohan Kumar, F. Yamamoto, J. Ichikawa, H. Ryoken, I. Sakaguchi, X. Liu,M. Nakamura, K. Terabe, S. Takekawa, H. Haneda, K. Kitamura
Journal of Crystal Growth 287 (2006) 472-477
(c) 2010 Elsevier B.V.

Zero-Chirp Broadband Z-Cut Ti:LiNbO3 Optical Modulator Using Polarization Reversal and Branch Electrode

Satoshi Oikawa, Member, IEEE, Futoshi Yamamoto, Junichiro lchikawa,Sunao Kurimura, and Kenji Kitamura
JOURNAL OF LIGHTWAVE TECHNOLOOY, VOL. 23, NO. 9, SEPTEMBER 2005 pp. 2756-2760
Copyright(c)2005 IEEE

Fiber-Optic Broadband Signal Distribution Link Based on a Millimeter-Wave Self-Heterodyne Transmission/Optical Remote Heterodyne Detection Technique

Yozo SHOJl, Yoshihiro HASHIMOTO, and Hiroyo OGAWA, Members
IEICE TRANS, ELECTRON., VOL.E88-C, NO.7 JULY 2005 pp. 1465-1474
(C) Copyright IEICE.

Programmable Coupler Ladder Based on Lithium Niobate Y-Junction Reflector

Jianxiao CHEN, Tetsuya KAWANISHl, Kaoru HIGUMA, Satoshi SHINADA, William S.C. CHANG,Masayuki IZUTSU, and Paul K.L. YU, Nonmembers
IEICE TRANS. ELECTRON., VOL.E88.C, NO.3 MARCH 2005 pp. 379-384
(C) Copyright IEICE.

Low Noise Photonic Millimeter-Wave Generation Using an Integrated Reciprocating Optical Modulator

Tetsuya Kawanishi, Satoshi Oikawa, Kiichi Yoshiara, Takahide Sakamoto, Satoshi Shinada, and Masayuki lzutsu
IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 17, NO .3. MARCH 2005 pp. 669-671
Copyright(c)2005 IEEE

High-Speed Optical FSK Modulator for Optical Packet Labeling

Tetsuya Kawanishi, Kaoru Higuma, Takahisa Fujita, Junichiro Ichikawa, Takahide Sakamoto, Member, IEEE,Satoshi Shinada, Member, IEEE, and Masayuki Izutsu, Fellow, IEEE
JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 23, NO. 1, JANUARY 2005 pp. 87-94
Copyright(c)2005 IEEE

Reciprocating optical modulator with resonant modulating electrode

T. Kawanishi, S. Shinada, T. Sakamoto, S. Oikawa,K. Yoshiara and M. Izutsu
ELECTRONICS LETTERS 3rd March 2005 Vol. 41 No. 5 pp. 271-272
(c) Copyright 2010 IEEE

Low Noise Photonic Millimeter-Wave Generation Using an Integrated Reciprocating Optical Modulator

Tetsuya KawaniShi, satoshi Oikawa, Kiichi Yoshiara, Takahide Sakamoto, Satoshi Shinada, and Masayuki Izutsu
IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 17, NO. 3, MARCH 2005 pp. 669-671
Copyright(c)2005 IEEE

Programmable Coupler Ladder Based on Lithiuln Niobate Y-Junction Reflector

Jianxiao CHEN, Tetsuya KAWANISHI, Kaoru HIGUMA, Satoshi SHINADA, William S.C. CHANG, Masayuki IZUTSU, andPaul K.L. YU, Nonmembers
IEICE TRANS. ELECTRON., VOL.E88_C, NO.3 MARCH 2005 pp. 379-384
(C) Copyright IEICE.

10Gbit/s FSK transmission over 95 km SMF using an external optical FSK modulator

Tetsuya Kawanishi, Kaoru Higuma, Takahisa Fujita, Junichiro lchikawa, Satoshi Shinada,Takahide Sakamoto and Masayuki lzutsu
WR3 pp609-610
IEEE

LiNbO3 high-Speed optical FSK modulator

T. Kawanishi, K. Higuma, T. Fujita, J. Ichikawa,T. Sakamoto, S. Shinada and M. Izutsu
ELECTRONICS LETTERS 27th May 2004 Vol. 40 No. 11 pp691-692
IEE

FSK/IM同時変調の解析および応用

川西哲也,坂本高秀,品田聡,藤田貴公,日隈薫,市川潤一郎,井筒雅之
信学技報 pp. 41-46
電子情報通信学会

Integrated Reciprocating Optical Modulator for Optical High-Order Sideband Generation

Tetsuya KAWANISHI, Kiichi YOSHIARA1, Satoshi OIKAWA2, Satoshi SHlNADA,Takahide SAKAMOTO and Masayuki IZUTSU
Japanese Journal of Applied Physics Vol. 43, No. 8B, 2004, pp. 5791-5794
(c)2004 The Japan Society of Applied Physics

Tunable Lithium Niobate Waveguide Loop

J. X. Chen,T. Kawanishi, K.Higuma, S.Shinada, J. Hodiak, M. Izutsu,W. S. C. Chang, and P. K. L. Yu
IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 16, NO. 9, SEPTEMBER 2004 pp. 2090-2092
Copyright(c)2004 IEEE

Electro-Optic Sampling Meauremwnt of the Electric Field Distribution on a Resonant Electrode for a Band-OperationModulator

Yoshihiro MATSUO, Tetsuya KAWANISHI, Satoshi OIKAWA, Kaoru HIGUMA, and Masayuki IZUTSU, Nonmembers
IEICE TRANS. ELECTRON., VOL. E86-C, NO.1 JANUARY 2003 pp100-103

Double-Stub Structure for Resonant-Type Optical Modulators Using 20-μm-Thick Electrode

Satoshi Oikawa, Tetsuya Kawanishi, Kaoru Higuma, Yoshiro Matsuo, and Masayuki Izutsu, Senior Member, IEEE
IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 15, NO. 2, FEBRUARY 2003 pp. 221-223
Copyright(c)2003 IEEE

Measurement of Chirp Parameters and HalfwaveVoltages of Mach-Zchnder-Type Optical Modulators by Using a Small Signal Operation

Satoshi Oikawa, Tetsuya Kawanishi, and Masayuki Izutsu, Senior Member, IEEE
IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 15, NO. 5, MAY 2003 pp. 682-684
Copyright(c)2003 IEEE

Generation of 60 GHz Dual-Mode Optical BPSK Signal Pair for Crosstalk-Free QPSK Photodetection by Optical Modulation Scheme with Double RF Inputs and Suppressed Carrier Feature

Shinji NAKADAI, Kaoru HIGUMA, Satoshi OIKAWA, Masato KISHI and Masahiro TSUCHIYA, Regular Members
IEICE TRANS. ELECTRON, VOL. E86-C, NO. 7, JULY 2003 pp. 1245-1250
IEICE

60GHz帯ミリ波信号発生用往復逓倍変調器の開発

川西哲也、坂本高秀、品田聡、及川哲、吉新喜市、井筒雅之
信学技報, VOL. 103, NO. 272, AUG 2003 pp. 1-5
電子情報通信学会

デュアルブラッググレーティングを用いた往復逓倍光変調によるミリ波の発生

川西哲也、及川哲、井筒雅之
信学技報 pp. 65-70

Design of LiNbO3 Optical Modulator with an Asymmetric Resonant Structure

Tetsuya KAWANISHI, Satoshi OIKAWA, Kaoru HIGUMA, Masahide SASAKI, and Masayuki IZUTSU, Regular Members
IEICE TRANS. ELECTRON., VOL. E85-C, NO.1 JANUARY 2002 pp. 150-155

Electrically Tunable Delay Line Using an Optical Single-Sife-Band Modulator

Tetsuya Kawanishi, Satoshi Oikawa, Kaoru Higuma, and Masayuki Izutsu
IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 14, NO. 10, OCTOBER 2002 pp. 1454-1456
Copyright(c)2002 IEEE

ディレイラインを用いたRZパルサーLN変調器の試作

本田秀紀、及川哲
信学技報 pp. 17-20

Athermal Wavelength Lockers using Fiber Bragg Gratings

Masayuki Ichioka, Junichiro Ichikawa, Yuuki Kinpara, Takashi Sakai, Hitoshi Oguri, and Kenichi Kubodera
pp. 208-212

Reciprocating Optical Modulation for Millimeter-Wave Generation by Using a Dual-Section Fiber Bragg Grating

Tetsuya Kawanishi, Satoshi Oikawa,and Masayuki Izutsu, Senior Member, IEEE
JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 20, NO. 8, AUGUST 2002 pp. 1408-1415

光通信用LiNbO3変調器

久保寺　憲一，坂根　敏夫,
工業材料 pp48-52,

LiNbO3 Optical Intensity Modulator Packaged with Monitor Photodiode

Norikazu Miyazaki, Kazuhito Ooizumi, Tokutaka Hara, Manabu Yamada, Hirotoshi Nagata, Member, IEEE, and Toshio Sakane,
IEEE PHOTONICS TECHNOLOGY LETTERS,(MAY 2001),Vol.13,No.5.pp442-444
Copyright(c)2000 IEEE

Interface Reactions in LiNbO3 Based Optoelectronics Devices

Hirotoshi Nagata, Yasuyuki Miyama, Kaoru Higuma, Yoshihiro Hashimoto, Futoshi Yamamoto, Yuuji Yamane, and Miki Yatsuki
Mat. Res. Soc. Symp. Proc. Vol. 654 pp AA3.2.1-AA3.2.6
Copyright(C)1995-2001Materials Resarch Society

FG視覚センサを用いた就寝者監視システムの開発

青木広宙、竹村安弘、味村一弘、中島真人
第16回生体・生理工学シンポジウム論文集　pp187-190

非対称下型電極を用いた共振型光変調器の設計と特性評価

川西哲也、及川哲、日限薫、松尾善郎、井筒雅之
信学技報 pp11-16

Single Side-Band Modulation Performance of a LiNbO3 Integrated Modulator Consisting of Four-Phase Modulator Waveguides

S. Shimotsu, S. Oikawa, T. Saitou, N. Mitsugi, K. Kubodera, T. Kawanishi, and M. Izutsu
IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 13, NO. 4, APRIL 2001　pp364-366
Copyright(c)2001 IEEE

Optical and Physical Characterization of SiO 2-x -Al Thin-Film Polarizer on x-Cut LiNbO3 Substrate

Yasuyuki Miyama and Hirotoshi Nagata, Member, IEEE, Member, OSA
JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 19, NO. 7, JULY 2001 pp1051-1056
Copyright(c)2001 IEEE

Reciprocating Optical Modulation for Harmonic Generation

Tetsuya Kawanishi, Masahide Sasaki, Shinichi Shimotsu, Satoshi Oikawa, and Masayuki Izutsu
IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 13, NO. 8, AUGUST 2001 pp854-856
Copyright(c)2001 IEEE

Direct measurement of chirp parameters of high-speed Mach-Zehnder-type optical modulators

Tetsuya Kawanishi, Kenji Kogo, Satoshi Oikawa, Masayuki Izutsu
Optics Comnunications 195 (2001) 399-404
(C)Copyright 1999-2001 http://www.elsevier.com/

LN変調器の開発動向

宮崎徳一
Optronics,(FEB 2000) no.218,pp.149-153
Copyright(C)2000 OPTRONICS ㈱オプトロニクス社

Chemical deterioration of Al film prepared on CF4 plasma-etched LiNbO3surface,

Nagata H; Miyama Y; Mitsugi N; Shima K,
JOURNAL OF MATERIALS RESEARCH,(FEB 2000),Vol.15,No.2,pp.476-482
Copyright(C)1995-2001Materials Resarch Society

Fracture origins in LiNbO3 wafers due to postprocessing micro-repolarzation,

Nagata H; Ichikawa J; Sakuma M; Shima K; Haga E M,
JOURNAL OF MATERIALS RESEARCH,(FEB 2000)Vol.15,No.1,pp17-20
Copyright(C)1995-2001Materials Resarch Society

Initial bias dependency in dc drift of z-cut LiNbO3 optical intensity modulators,

Nagata H; Honda H; Akizuki K,
OPTICAL ENGINEERING,(APR 2000)Vol.39,No.4,pp.1103-1105
(C)1994-2001 SPIE-The International Society for Optical Engineering

Activation Energy of Dc-Drift of X-Cut LiNbO3 Optical Intensity Modulators

Nagata H
IEEE PHOTONICS TECHNOLOGY LETTERS,(APR 2000),Vol.12,No.4,pp386-388
Copyright(c)2000 IEEE

Ti:LiNbO3 waveguide polarizer with a Zn-doped overlayer prepared by liquid-phase epitaxy

Ichikawa J; Uda S; Shimamura K; Fukuda T; Nagata H; Minowa J
APPLIED PHYSICS LETTERS,(MAR 2000),Vol.76,No.12,pp1498-1500
Copyrihgt(C)2000 American Institute of Physics

Structure and Refractive Indices of Proton-Implanted LiNbO3

Victor V. Atuchin VV; Nagata H; Kawamura K; Higuma K; Ichikawa J; Pokrovsky LD; Takai H; Hosono H
Jpn.J.Appl.Phys.,(MAY 2000),Vol.39,Part 1,No.5A,pp2653-2656

Chemical Properties of fused Fiber Coupler Surface

Nagata H
Optical Fiber Technology,(2000),Vol.6,pp324-328
Copyrihgt(C)Harcourt,Inc.

Effect of Heating on Jacketed Optical Fibers

Nagata H
Optical Fiber Technology,(2000),Vol.6,pp192-198
Copyrihgt(C)Harcourt,Inc.

DC Drift Failure Rate Estimation on 10 Gb/s X-Cut Lithium Niobate Modulators,

Hirotoshi Nagata,
IEEE PHOTONICS TECHNOLOGY LETTERS,(NOVEMBER 2000)VOL.12, NO.11,pp1477-1479
Copyright(c)2000 IEEE

Highly efficient photon-to-electron conversion with mercurochrome-sensitized nanoporous oxide semiconductor solar cells,

Kohjiro Hara, Takaro Horiguchi, Tohru Kinoshita,Kazuhiro Sayama, Hideki Sugihara, Hironori Arakawa,
Solar Energy Materials & Solar Cells 64,(2000)Vol.39,No.4,pp.115-134
(C)Copyright 1999-2000

Highly Efficient Photon-to-Electron Conversion of Mercurochrome-sensitized Nanoporous ZnO Solar Cells,

Kohjiro Hara, Takaro Horiguchi, Tohru Kinoshita, Kazuhiro Sayama, Hideki Sugihara, Hironori Arakawa
Chemistry Letters 2000,pp316-317

Long-term DC drift in x-cut LiNbO3 modulators without oxide buffer layer,

H.Nagata,
IEE Proc. -Optoelectron,(October 2000),Vol.147, No.5,,pp350-354

Nondestructive inspection of crystal defects in LiNbO3 wafers by using an optical technique,

Masayoshi Yamada, Masashi Matsumura, Masayuki Fukuzawa, Kaoru Higuma, and Hirotoshi Nagata
Integrated Optics Devices IV,(2000),Vol.3936 ,pp101-106
(C)1994-2001 SPIE-The International Society for Optical Engineering

高速光通信用LiNbO3変調器の信頼性

永田裕俊、箕輪純一郎
REAJ誌’99Vol.21.No.2，pp.86-93
Copyright(C)2000 REAJ 日本信頼性学会

Improvement of bonding strength between Au/Ti and SiO2 films by Si layer insertion,

Nagata H; Shinriki T; Shima K; Tamai M; Haga E M,
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, (MAY-JUN1999) Vol.17,No3,pp.1018-1023
(C)American Vacuum Society,2000,All Right Reserved

Undesirable contaminants possibly introduced in LiNbO3 electro-optic devices,

Nagata H ; Mitsugi N; Sakamoto T; Shima K; Tamai M; Haga E M,
JOURNAL OF APPLIED PHYSICS, (1 DEC 1999) Vol. 86, No. 11, pp. 6342-6350.
Copyrihgt(C)2000 American Institute of Physics

Novel x-cut lithium niobate intensity modulator with 10G bandwidth

Miyama Y; Sugamata T; Hashimoto Y; Sakamoto T; Nagata H
Part of the SPIE Conference on Optical Devices for Fiber Communication Boston, Massachusetts.SEP1999 SPIE Vol.3847,pp.102-109
(C)1994-2001 SPIE-The International Society for Optical Engineering

Failure Case Study for Opical Fiber Breaks in Metal Packages

Nagata H; Mitsugi N; Shima K
OPTICAL FIBER TECHNOLOGY, (JUL 1999) Vol. 5, No. 3, pp. 338-348.
Copyrihgt(C)Harcourt,Inc

Effect of substrate heating on elimination of pinholes in sputtering deposited Si02 films on LiNb03 single crystal substrates

Nagata H; Fujino T; Mitsugi N; Tamai M ,
THIN SOLID FILMS, (14 DEC 1998) Vol. 335, No. 1-2, pp. 1 17-121
(C)Copyright 1999-2000

Dc drift reduction in LiNbO3 optical modulators by decreasing the water content of vacuum evaporation deposited SiO2 buffer layers,

Nagata H; Shiroishi M; Kitanobou T; Ogura K,
OPTICAL ENGINEERING, (OCT 1998) Vol. 37, No. 10, PI　2855-2858.
(C)1994-2001 SPIE-The International Society for Optical Engineering

Failure case study for loose tube jacketed optical fibers,

Nagata H; Ooto K; Shiroishi M; Ogiwara J ,
OPTICAL FIBER TECHNOLOGY, (OCT 1998) Vol. 4, No. 4, pp. 480-489.
Copyrihgt(C)Harcourt,Inc.

Challenges in electron cyclotron resonance plasma etching of LiNbO3 surface forfabrication of ridge optical waveguides,

Mitsugi N; Nagata H; Shima K; TamaiM,
JOURNAL OF VACUUM SCINCE&TECHNOLOGY A-VACUUM SURFACES AND FILMS,(JUL‐AUG 1998)Vol.16,NO.4,pp.2245‐2251.
(C)American Vacuum Society,2000,All Right Reserved

Observation of ferroelectric microdomains in LiNbO3 crystals by electrostatic force microscopy,

Tsunekawa S; Ichikawa J; Nagata H; Fukuda T,
APPLIED SURFACE SCIENCE 137(1999),pp61-70

Growth of crystalline LiF on CF4 plasma etched LiNb03 substrates,

Nagata H; Mitsugi N; Shima K; Tamai M; Haga E M,
JOURNAL OF CRYSTAL GROWTH, (MAY 1998) Vol. 187, No. 3-4, pp. 573-576

Evaluation of hydroxyl content in commercial X-cut LiNbO3 Wafers for optical waveguide devices,

Nagata H,
OPTICAL ENGINEERING, (MAY 1998) Vol. 37, No.5, pp. 1612-1617.
(C)1994-2001 SPIE-The International Society for Optical Engineering

Surface precipitates on single crystal LiNbO3 after dry-etching by CHF3plasma,

Shima K; Mitsugi N; Nagata H,
JOURNAL OF MATERIALS RESEARCH, (MAR 1998) Vol.13, No. 3, pp. 527-529.
Copyright(C)1995-2001 Materials Reseach Society

Analyses of LiNbO3 wafer surface etched by ECR plasma of CHF3 & CF4,

Nagata H; Miyama Y; Mitsugi N; Shima K,
Naoki Mitsugi, Kaori Shima, Masumi Ishizuka and Hirotoshi Nagata,

LN光デバイス集積技術

箕輪純一郎
セラミックス,(AUG 1997)Vol.32,No.8,pp.609-612
Copyright(c)2000 CSJ 社団法人 日本セラミックス協会

Process control for a Si02 buffer layer of LiNb03 modulators to obtain reduced dc drift performance,

Nagata H; Kitanobou T; Shima K: Shiroishi M,
OPTICAL ENGINEERING, (DEC 1997) Vol. 36, No. 1 2, pp. 3478-3480.
(C)1994-2001 SPIE-The International Society for Optical Engineering

Influence of Ar impurities on optical refractive index of sputter deposited a-Si films,

Takahashi H ; Kataoka H; Nagata H,
JOURNAL OF MATERIALS RESEARCH, (JUL 1997) Vol. 12, No. 7, pp. 1722-1726.
Copyright(C)1995-2001 Materials Reseach Society

Effect of hydroxyl content on thermally induced change in surface morphology of lithium niobate (000(1)over-bar) substrates,

Nagata H ; Shima K; Ichikawa J,
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, (MAY 1997) Vol. 80, No. 5, pp. 1233-1207.

Materials reliability for high-speed lithium niobate modulators,

Nagata H; Mitsugi N; Ichikawa J; Minowa J,
Part of the SPIE Conference on Optoelectronic Integrated Circuits San Jose,California.FEB1997 SPIE Vol.3006,pp.301-313
(C)1994-2001 SPIE-The International Society for Optical Engineering

Thermal analysis of jacketing materials for commercial optical fibers,

Nagata H,
OPTICAL FIBER TECHNOLOGY, (JAN 1997) Vol. 3, No. 1, pp. 87-89.
Copyrihgt(C)Harcourt,Inc.

Comments on fabrication parameters for reducing thermal drift on LiNbO3optical modulators,

Nagata H; Oikawa S; Yamada N,
OPTICAL ENGINEERING, (JAN 1997) Vol. 36, No. 1, pp. 283-286.
(C)1994-2001 SPIE-The International Society for Optical Engineering

Surface steps observed in a dry annealed z-cut LiNbO3 substrate,

Nagata H; Shima K,
REVIEW PAPERS, (JUL 1996) Vol. 35, No. 7, pp. 4040-4041

Mechanisms of reduction of the internal-stress in hydrogenated silicon-oxide films prepared by Ar/H2 sputtering,

Takahashi H; Nishiguchi A; Nagata H; Kataoka H; Fujishima M,
THIN SOLID FILMS, (OI AUG 1996) Vol. 282, No. 1-2, pp. 348-351
(C)Copyright 1999-2000

Reduced thermal-decomposition of OH-free LiNbO3 substrates even in a dry gas,

Nagata H; Sakamoto T; Honda H: Ichikawa J; Haga E M; Shima K; Haga N,
JOURNAL OF MATERIALS RESEARCH, (AUG 1 996) Vol. 1 1, No. 8, pp. 2085-2091.
Copyright(C)1995-2001 Materials Reseach Society

Ar/H2 sputtering deposition of 350 mu-m thick Si:H/Si02-x:H multilayers having flat interfaces for optical applications,

Takahashi H; Nagata H; Kataoka H,
THIN SOLID FILMS, (OI MAY Ieo6) Vof. 277, No. 1-2, pp. 132-137.
(C)Copyright 1999-2000

Structural relaxation and stress reduction in hydrogenated silicon-oxide films,

Takahashi H; Nishiguchi A; Nagata H; Kataoka H; Fujishima M,
JOURNAL OF APPLIED PHYSICS, (OI MAR 1996) Vof. 79, No. 5, pp. 2787-2789.
Copyright(C)2000 American Institute of Physics

Elimination of Optical Fiber Breaks in Stainless Steel Packages for LiNbO3Optical Modulator Devices,

Nagata H; Mitsugi N; Shiroishi M; Saito T; Tateyama T; Murata S,
Optical Fiber Technology ,(1996)Vol.2,pp98-105
Copyrihgt(C)Harcourt,Inc.

Mechanical Reliability of LiNbO3 Optical Modulators Hermetically Sealed in Stainless Steel Packages,

Nagata H; Mitsugi N,
Optical Fiber Technology,(1996)Vol.2,pp216-224
Copyrihgt(C)Harcourt,Inc.

Applied-voltage induced fatigue of lithium-niobate wave-guide,

Nagata H; Mitsugi N; Sakamoto T; Kiuchi K; Ichikawa J,
APPLIED PHYSICS LETTERS, (15 JAN 1996) Vol.68, No. 3, pp. 301-303.
Copyright(C)2000 American Institute of Physics

Progress and problems in reliability of Ti:LiNbO3 optical intensity modulators,

Nagata H; Ichikawa J,
Optical Engineering,(Nov1995)Vol.34,No.11,pp3284-3293
(C)1994-2001 SPIE-The International Society for Optical Engineering

Mechanisms of intrinsic stresses generation in sputtered amorphous Si:H films,

Takahashi H; Nagata H; Kataoka H; Takai H,
JOURNAL OF MATERIALS RESEARCH, (NOV 1995) Vol. 10, No. 1 1 , pp. 2736-2741
Copyright(C)1995-2001 Materials Reseach Society

Impurity Evaluations of Si02 Films Formed on LiNb03 Substrates.,

Optical Fiber Breaks Due to Buckling : Problems in device Packaging,

Mitsugi N; Nagata H; Shiroishi M; Miyamoto N; Kaizu R,
Optical Fiber Technology,(1995)Vol.1,pp278-282
Copyrihgt(C)Harcourt,Inc.

Evaluation of New UV-Curable Adhesive Material for Stable Bonding between Optical Fibers and Waveguide Devices:Problems in Device Packaging,

Nagata H; Shiroishi M; Miyama Y; Mitsugi N; Miyamoto N,
Optical Fiber Technology,(1995)Vol.1,pp283-288
Copyrihgt(C)Harcourt,Inc.

Modulation characteristics of high-speed optical modulators with properly split asymmetry into theMach-Zehnder arms,

J.Nayyer; Nagata H; Shimotsu S; Oikawa S; Yamada M,
ELECTRONICS LETTERS,(MAR1995),Vol.31,No.5,pp387-388