Study on implementation of ferroelectric crystal nano-waveguides and nano-integrated nonlinear quantum photonic devices

• Project/Area Number: 26600116
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Optical engineering, Photon science
• Research Institution: Osaka University
• Principal Investigator: Suhara Toshiaki 大阪大学, 工学(系)研究科(研究院), 教授 (90116054)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 光制御 / 非線形光学デバイス

Outline of Final Research Achievements

Experimental work was performed on the titled subject. Techniques were established for formation of LiNbO3 channel waveguides by surface-activated direct bonding, slicing with He ion implantation and proton-exchange-accelerated chemical etching. Channel waveguides of 0.7×1.0 squared micron cross section and a nonlinear-optic coupling coefficient one order of magnitude larger than that of conventional waveguides were obtained. Formation of quasi-phase matching (QPM) structures was accomplished by domain inversion with charge-controlled pulse voltage application to implement nano-waveguide QPM nonlinear optic wavelength conversion devices. The results include formation of waveguides and QPM structures in new crystals MgO:c-LiTaO3 with high optical damage resistance and LaBGeO5 with wide ultraviolet transparency range.

Research Products

• [Journal Article] Fabrication of short-period poled structures and UV sum-frequency generation in 8 mol% MgO-doped congruent LiTaO3 crystal (2016)
  • Author(s): T.Oka and T.Suhara
  • Journal Title: Jpn. J. Appl. Phys Volume: 55 Issue: 4 Pages: 040304-040304
  • DOI: 10.7567/jjap.55.040304
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Polarization-selective directional coupler using Ti-indiffused MgO:LiNbO3 waveguides (2015)
  • Author(s): H.Seo, and T.Suhara
  • Journal Title: Jpn. J. Appl. Phys. Volume: 54 Issue: 5 Pages: 058001-058001
  • DOI: 10.7567/jjap.54.058001
  • NAID: 210000145161
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] InGaAs ridge-waveguide distributed Bragg reflector laser with first-order grating fabricated by nanoimprint lithography (2015)
  • Author(s): M. Uemukai, S. Terai and T. Suhara
  • Journal Title: Japanese Journal of Applied Physics Volume: 54 Issue: 5 Pages: 058002-058002
  • DOI: 10.7567/jjap.54.058002
  • NAID: 210000145162
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Single-mode operation of GaAsP ring Fabry-Perot composite cavity semiconductor lasers (2015)
  • Author(s): A.Saha, M.Uemukai and T.Suhara
  • Journal Title: Jpn. J. Appl. Phys. Volume: 54 Issue: 6 Pages: 060302-060302
  • DOI: 10.7567/jjap.54.060302
  • NAID: 110010009960
  • Peer Reviewed
• [Journal Article] Electro-optic polarization conversion type modulator using periodically poled 8 mol% MgO doped congruent LiTaO3 (2015)
  • Author(s): T. Inoue, D. Kuwamura and T. Suhara
  • Journal Title: Applied Physics Express Volume: 8 Issue: 6 Pages: 062601-062601
  • DOI: 10.7567/apex.8.062601
  • NAID: 210000137544
  • Peer Reviewed
• [Journal Article] Nondestructive observation of ferroelectric domain-inverted structures in MgO:LiNbO3 by scanning electron microscope (2015)
  • Author(s): K.Tanaka and T.Suhara
  • Journal Title: Electron. Lett. Volume: 51 Pages: 923-925
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Fabrication and evaluation of deep proton-exchanged and annealed waveguide in MgO:s-LiTaO3 (2015)
  • Author(s): M.Okazaki, T.Chichibu, S.Yoshimoto, H.Mizuno and T.Suhara
  • Journal Title: Jpn. J. Appl. Phys. Volume: 54 Issue: 7 Pages: 070301-070301
  • DOI: 10.7567/jjap.54.070301
  • Peer Reviewed
• [Journal Article] Two-wavelength lasing of ring / Fabry-Perot composite cavity semiconductor lasers (2015)
  • Author(s): A.Saha and T.Suhara
  • Journal Title: Jpn. J. Appl. Phys. Volume: 54 Issue: 7 Pages: 070307-070307
  • DOI: 10.7567/jjap.54.070307
  • Peer Reviewed
• [Journal Article] Fabrication of periodically-poled structures in 8mol% MgO-doped congruent LiTaO3 crystal and green second harmonic generation (2015)
  • Author(s): T.Oka and T.Suhara
  • Journal Title: Jpn. J. Appl. Phys. Volume: 54 Issue: 7 Pages: 070310-070310
  • DOI: 10.7567/jjap.54.070310
  • Peer Reviewed
• [Journal Article] Electrooptic spatial light modulator using periodically-poled MgO:s-LiTaO3 waveguide (2015)
  • Author(s): M.Okazaki, T.Chichibu, S.Yoshimoto, H.Mizuno and T.Suhara
  • Journal Title: IEEE Photon. Tech. Lett. Volume: 27 Issue: 15 Pages: 1646-1648
  • DOI: 10.1109/lpt.2015.2433313
  • Peer Reviewed
• [Journal Article] Annealed proton-exchanged waveguide quasi-phase-matched second-harmonic generation devices in 8 mol% MgO-doped congruent LiTaO3 (2015)
  • Author(s): T.Oka and T.Suhara
  • Journal Title: Jpn. J. Appl. Phys. Volume: 54 Issue: 10 Pages: 100304-100304
  • DOI: 10.7567/jjap.54.100304
  • Peer Reviewed
• [Journal Article] Fabrication of 0.7 μm2 ridge waveguide in ion-sliced LiNbO3 by proton-exchange accelerated chemical etching (2015)
  • Author(s): K. Tanaka and T. Suhara
  • Journal Title: Japanese Journal of Applied Physics Volume: 54 Issue: 12 Pages: 128002-128002
  • DOI: 10.7567/jjap.54.128002
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] High-performance 1024-pixel EO spatial light modulator using cascaded periodically-poled Raman-Nath gratings (2015)
  • Author(s): M.Okazaki and T.Suhara
  • Journal Title: J. Lightwave Tech. Volume: 33 Issue: 24 Pages: 5195-5200
  • DOI: 10.1109/jlt.2015.2496999
  • Peer Reviewed
• [Journal Article] Polarization-selective directional coupler using Ti–indiffused MgO:LiNbO3 waveguides (2015)
  • Author(s): H.Seo and T.Suhara
  • Journal Title: Jpn. J. Appl. Phys. Volume: 54
  • NAID: 210000145161
  • Peer Reviewed
• [Journal Article] 通信波長帯用Ti拡散MgO:LiNbO3チャネル両偏波光導波路の作製と特性評価 (2014)
  • Author(s): 大森豊，栖原敏明
  • Journal Title: レーザー研究 Volume: 31 Pages: 412-416
  • NAID: 130007897603
  • Peer Reviewed
• [Journal Article] InGaAs circular-grating-coupled surface emitting laser with focusing function fabricated by electron-beam writing with circular scanning (2014)
  • Author(s): A.Saha, M.Uemukai and T.Suhara
  • Journal Title: Opt. Rev. Volume: 21 Pages: 206-209
  • Peer Reviewed
• [Journal Article] Fabrication of MgO:LiNbO<SUB>3</SUB> Domain Inverted Structures with Short Period and Application to Electro-Optic Bragg Deflection Modulator (2014)
  • Author(s): T. Inoue and T. Suhara
  • Journal Title: IEICE Transactions on Electronics Volume: E97.C Issue: 7 Pages: 744-748
  • DOI: 10.1587/transele.E97.C.744
  • NAID: 130004519135
  • ISSN: 0916-8524, 1745-1353
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Electro-Optic Raman-Nath modulator using cascaded periodically-poled gratings (2014)
  • Author(s): M.Okazaki and T.Suhara
  • Journal Title: IEEE Photon. Tech. Lett. Volume: 26 Issue: 23 Pages: 2334-2336
  • DOI: 10.1109/lpt.2014.2355913
  • Peer Reviewed
• [Journal Article] High-performance electro-optic polarisation conversion type modulator for short-wavelength light using periodically poled MgO:LiNbO3 (2014)
  • Author(s): T. Inoue and T. Suhara
  • Journal Title: Electronics Letters Volume: 50 Issue: 22 Pages: 1622-1624
  • DOI: 10.1049/el.2014.2848
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] 電圧印加によるLaBGeO5結晶周期分極反転構造作製の基礎検討 (2016)
  • Author(s): 沖野行佑, 栖原敏明
  • Organizer: 平成28年春季第63回応用物理学会学術講演会
  • Place of Presentation: 東京工業大学
  • Year and Date: 2016-03-19
• [Presentation] MgO(8mol%)添加c-LiTaO3周期分極反転構造による355nm紫外光和周波発生 (2016)
  • Author(s): 岡寿治, 栖原敏明
  • Organizer: 平成28年春季第63回応用物理学会学術講演会
  • Place of Presentation: 東京工業大学
  • Year and Date: 2016-03-19
• [Presentation] ２周期分極反転導波路型Type-II擬似位相整合ポストセレクションフリー偏波エンタングル光子対発生デバイスの量子干渉実験 (2016)
  • Author(s): 渡辺雄太, 栖原敏明
  • Organizer: 平成28年春季第63回応用物理学会学術講演会
  • Place of Presentation: 東京工業大学
  • Year and Date: 2016-03-19
• [Presentation] GaAsP tunable distributed Bragg reflector laser with ITO thin-film heater (2015)
  • Author(s): M.Uemukai and T.Suhara
  • Organizer: Microoptics Conference (MOC’15)
  • Place of Presentation: Fukuoka, Japan
  • Year and Date: 2015-10-25
  • Int'l Joint Research
• [Presentation] Fabrication of periodically-poled structures in MgO(8mol%):c-LiTaO3 crystal and waveguide SHG devices (2015)
  • Author(s): T.Oka and T.Suhara:
  • Organizer: Microoptics Conference (MOC’15)
  • Place of Presentation: Fukuoka, Japan
  • Year and Date: 2015-10-25
  • Int'l Joint Research
• [Presentation] EO Raman-Nath spatial light modulator with 1024 pixels using cascaded periodically-poled three-stage gratings (2015)
  • Author(s): M.Okazaki and T.Suhara
  • Organizer: Microoptics Conference (MOC’15)
  • Place of Presentation: Fukuoka, Japan
  • Year and Date: 2015-10-25
  • Int'l Joint Research
• [Presentation] Electro-optic polarization conversion type modulator using domain-inverted 8 mol% MgO doped congruent LiTaO3 (2015)
  • Author(s): T.Inoue and T.Suhara
  • Organizer: Microoptics Conference (MOC’15)
  • Place of Presentation: Fukuoka, Japan
  • Year and Date: 2015-10-25
  • Int'l Joint Research
• [Presentation] Fabrication of domain inverted ridge waveguide in ion-slices LiNbO3 for wavelength conversion devices (2015)
  • Author(s): K.Tanaka and T.Suhara
  • Organizer: Microoptics Conference (MOC’15)
  • Place of Presentation: Fukuoka, Japan
  • Year and Date: 2015-10-25
  • Int'l Joint Research
• [Presentation] Demonstration of two-wavelength lasing in a GaAsP ring / Fabry-Perot composite-cavity semiconductor laser (2015)
  • Author(s): A.Saha and T.Suhara
  • Organizer: Int. Conf. Solid State Devices and Materials
  • Place of Presentation: Sapporo, Japan
  • Year and Date: 2015-09-27
  • Int'l Joint Research
• [Presentation] 接合イオンスライスLiNbO3結晶におけるプロトン交換増速エッチングによるリッジ光導波路の作製・評価およびデバイス応用 (2015)
  • Author(s): 田中圭介, 栖原敏明
  • Organizer: 平成27年秋季第76回応用物理学会学術講演会
  • Place of Presentation: 名古屋国際会議場
  • Year and Date: 2015-09-13
• [Presentation] MgO(8mol%)添加c-LiTaO3周期分極反転構造を用いた導波路型擬似位相整合第２高調波発生デバイスの作製と評価 (2015)
  • Author(s): 岡寿治, 栖原敏明
  • Organizer: 平成27年秋季第76回応用物理学会学術講演会
  • Place of Presentation: 名古屋国際会議場
  • Year and Date: 2015-09-13
• [Presentation] ２周期分極反転導波路型Type-II擬似位相整合ポストセレクションフリー偏波エンタングル光子対発生デバイスの作製と実験 (2015)
  • Author(s): 渡辺雄太, 栖原敏明
  • Organizer: 平成27年秋季第76回応用物理学会学術講演会
  • Place of Presentation: 名古屋国際会議場
  • Year and Date: 2015-09-13
• [Presentation] Fabrication of 0.7um2 ridge waveguides in ion-sliced LiNbO3 by proton-exchanged accelerated etching (2015)
  • Author(s): K.Tanaka and T.Suhara
  • Organizer: Conf. Laser and Electro-Optics Pacific Rim (CLEO’PR2015)
  • Place of Presentation: Busan, Korea
  • Year and Date: 2015-08-24
  • Int'l Joint Research
• [Presentation] MgO(8mol%)添加c-LiTaO3アニールプロトン交換導波路の作製 (2015)
  • Author(s): 岡寿治,栖原敏明
  • Organizer: 第62回応用物理学会春季学術講演会
  • Place of Presentation: 神奈川県平塚市
  • Year and Date: 2015-03-11 – 2015-03-14
• [Presentation] 接合イオンスライスLiNbO3結晶におけるプロトン交換増速エッチングによるリッジ光導波路の作製 (2015)
  • Author(s): 田中圭祐，栖原敏明
  • Organizer: 第62回応用物理学会春季学術講演会
  • Place of Presentation: 神奈川県平塚市
  • Year and Date: 2015-03-11 – 2015-03-14
• [Presentation] 金属/液体電極を用いた電圧印加によるMgO:LiNbO3周期分極反転構造作製と緑色第２高調波発生 (2015)
  • Author(s): 沖野行佑, 栖原敏明
  • Organizer: 第62回応用物理学会春季学術講演会
  • Place of Presentation: 神奈川県平塚市
  • Year and Date: 2015-03-11 – 2015-03-14
• [Presentation] MgO(8mol%)添加LiTaO3周期分極反転構造を用いた電気光学ブラッグ偏向型光変調器 (2015)
  • Author(s): 井上敏之, 岡寿治, 栖原敏明
  • Organizer: 電子情報通信学会技術報告
  • Place of Presentation: 大阪府豊中市
  • Year and Date: 2015-01-29 – 2015-01-30
• [Presentation] 走査型電子顕微鏡によるMgO:LiNbO3周期分極反転構造の非破壊的観察 (2014)
  • Author(s): 田中圭祐，栖原敏明
  • Organizer: 平成26年秋季第75回応用物理学会学術講演会
  • Place of Presentation: 北海道札幌市
  • Year and Date: 2014-09-17 – 2014-09-20
• [Presentation] MgO(8mol%)添加c-LiTaO3短周期分極反転構造作製と一様性改善 (2014)
  • Author(s): 岡寿治,栖原敏明
  • Organizer: 平成26年秋季第75回応用物理学会学術講演会
  • Place of Presentation: 北海道札幌市
  • Year and Date: 2014-09-17 – 2014-09-20
• [Presentation] Grating coupler integrated semiconductor lasers (Invited Paper) (2014)
  • Author(s): T.Suhara and M.Uemukai
  • Organizer: European Conference on Integrated Optics / Microoptics Conference (ECIO-MOC2014)
  • Place of Presentation: Nice, France
  • Year and Date: 2014-06-24 – 2014-06-27
  • Invited
• [Presentation] High-performance electro-optic polarization conversion type modulator for short-wavelength light using periodically poled MgO:LiNbO3 (2014)
  • Author(s): T.Inoue and T.Suhara
  • Organizer: European Conference on Integrated Optics / Microoptics Conference (ECIO-MOC2014)
  • Place of Presentation: Nice, France
  • Year and Date: 2014-06-24 – 2014-06-27
• [Remarks] 栖原研究室ＨＰ
  • URL: http://ioe.eei.eng.osaka-u.ac.jp
• [Remarks] 栖原研究室HP
  • URL: http://ioe.eei.eng.osaka-u.ac.jp