Renovation of coherent high-brightness visible-deep ultravaiolet sources with praseodymium solid-state lasers

• Project/Area Number: 26286065
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Optical engineering, Photon science
• Research Institution: Keio University
• Principal Investigator: Kannari Fumihiko 慶應義塾大学, 理工学部, 教授 (40204804)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥15,860,000 (Direct Cost: ¥12,200,000、Indirect Cost: ¥3,660,000); Fiscal Year 2016: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2015: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2014: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
• Keywords: Pr:YLFレーザー / InGaN半導体レーザー / モード同期 / 受動Qスイッチ / 深紫外レーザー / 固体レーザー / 可視域レーザー / Qスイッチレーザー / 2倍高調波 / 深紫外域レーザー / モード同期レーザー / 青色半導体レーザー / 可視域全固体レーザー / 可視域受動Qスイッチレーザー / 可視域モード同期レーザー / プラセオジムレーザー

Outline of Final Research Achievements

Development of component technologies and demonstration of laser power scaling were performed for trivalent Praseodymium doped fluoride lasers pumped by blue InGaN diode-lasers (LD) to renovate visible and deep ultraviolet coherent light sources that have been provided by 2nd-4th harmonics of near-infrared lasers.By employing four 3.5-W InGaN LDs, CW lasers at red(4.8W) and green (1.8W), active Q-switching(1W, 5kHz) and its intracavity-SHG(60mW, 7,7kHz), passive Q-switching(1.2W, 105kHz) and its SHG(76mW, 50kHz), and CW mode-locking were achieved.

Research Products

• [Journal Article] Wavelength-multiplexed pumping with 478- and 520-nm indium gallium nitride laser diodes for Ti:sapphire laser (2017)
  • Author(s): Ryota Sawada, Hiroki Tanaka, Naoto Sugiyama, and Fumihiko Kannari
  • Journal Title: Applied Optics Volume: 56 Issue: 6 Pages: 1654-1661
  • DOI: 10.1364/ao.56.001654
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] 50-kHz, 50-ns UV pulse generation by diode-pumped frequency doubling Pr3+:YLF Q-switch laser with a Cr4+:YAG saturable absorber (2016)
  • Author(s): Hiroki Tanaka, Ryosuke Kariyama, Kodai Iijima, Fumihiko Kannari
  • Journal Title: Applied Optics Volume: 55 Issue: 23 Pages: 6193-6198
  • DOI: 10.1364/ao.55.006193
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Pr3+:YLF mode-locked laser at 640 nm directly pumped by InGaN-diode lasers (2016)
  • Author(s): Kodai Iijima, Ryosuke Kariyama, Hiroki Tanaka, Fumihiko Kannari
  • Journal Title: Applied Optics Volume: 55 Issue: 28 Pages: 7782-7787
  • DOI: 10.1364/ao.55.007782
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Saturation of 640-nm absorption in Cr4+:YAG for an InGaN laser diode pumped passively Q-switched Pr3+:YLF laser (2015)
  • Author(s): Hiroki Tanaka, Ryosuke Kariyama, Kodai Iijima, Kenichi Hirosawa, Fumihiko Kannari
  • Journal Title: Optics Express Volume: 23 Issue: 15 Pages: 19382-19395
  • DOI: 10.1364/oe.23.019382
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] In-phase second harmonic eave array generation with intra-Talbot-cavity frequency-doubling (2015)
  • Author(s): Kenichi Hirosawa, Fumio Shohda, Takayuki Yanagisawa, Fumihiko Kannari
  • Journal Title: Optics Express Volume: 23 Issue: 6 Pages: 7703-7712
  • DOI: 10.1364/oe.23.007703
  • Peer Reviewed / Open Access
• [Journal Article] InGaN diode pumped actively Q-switched intracavity frequency doubling Pr:LiYF4 261 nm laser (2014)
  • Author(s): Junichiro Kojou, Ryo Abe, Ryosuke Kariyama, Hiroki Tanaka, Akira Sakurai, Yojiro Watanabe, Fumihiko Kannari
  • Journal Title: Applied Optics Volume: 53 Issue: 10 Pages: 2030-2036
  • DOI: 10.1364/ao.53.002030
  • Peer Reviewed
• [Presentation] InGaN 半導体レーザ励起Pr:YLFレーザの第三次高調波発生 (2017)
  • Author(s): 清田恭章, 田中裕樹, 飯島功大, 神成文彦
  • Organizer: 第64回応用物理学会春季学術講演会
  • Place of Presentation: パシフィコ横浜 （神奈川県、横浜市）
  • Year and Date: 2017-03-14
• [Presentation] InGaN緑・青色半導体レーザー直接励起Ti:sapphireレーザー (2017)
  • Author(s): 田中裕樹，澤田亮太，杉山直仁，神成文彦
  • Organizer: 第9回文部科学省「最先端の光の創成を目指したネットワーク研究拠点プログラム」シンポジウム
  • Place of Presentation: 弘済会館 （東京都、千代田区）
  • Year and Date: 2017-01-24
• [Presentation] 窒化ガリウム系半導体レーザー直接励起固体レーザー (2017)
  • Author(s): 田中裕樹，飯島功大，澤田亮太，清田恭章，杉山直仁，神成文彦
  • Organizer: レーザー学会学術講演会第37回年次大会
  • Place of Presentation: 徳島大学常三島キャンパス （徳島県、徳島市）
  • Year and Date: 2017-01-07
  • Invited
• [Presentation] Fabrication of Pr:ZBLAN waveguides for laser using refractive index change induced by ultra-fast laser pulses (2016)
  • Author(s): Takuya Sato,Yusuke Yamanaka, Fumihiko Kannari
  • Organizer: The 5th Advanced Lasers and Photon Sources (ALPS'16)
  • Place of Presentation: パシフィコ横浜（神奈川県、横浜市）
  • Year and Date: 2016-05-17
  • Int'l Joint Research
• [Presentation] Pr3+:YLF Visible Lasers Directly Pumped by InGaN Diode Lasers (2016)
  • Author(s): Kodai Iijima, Ryosuke Kariyama, Hiroki Tanaka, Yasuaki Kiyota,Fumihiko Kannari
  • Organizer: The 5th Advanced Lasers and Photon Sources (ALPS'16)
  • Place of Presentation: パシフィコ横浜（神奈川県、横浜市）
  • Year and Date: 2016-05-17
  • Int'l Joint Research
• [Presentation] Solid-state lasers directly pumped by InGaN diode lasers: Ti:sapphire and Pr3+:LiYF4 lasers (2016)
  • Author(s): Hiroki Tanaka, Ryosuke Kariyama, Kodai Iijima, Ryota Sawada, Fumihiko Kannari
  • Organizer: LASE, SPIE Photonic West 2016
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2016-02-13
  • Int'l Joint Research
• [Presentation] Solid-State Lasers Directly Pumped by InGaN Blue/Green Diode Lasers (2015)
  • Author(s): Fumihiko Kannari
  • Organizer: CLEO Pacific Rim 2015
  • Place of Presentation: Busan, Korea
  • Year and Date: 2015-08-24
  • Int'l Joint Research / Invited
• [Presentation] Passively Mode-Locked 640-nm Pr:YLF Laser Pumped by InGaN Laser Diodes (2015)
  • Author(s): Ryosuke Kariyama, Hiroki Tanaka, Kodai Iijima, Kenichi Hirosawa, Fumihiko Kannari
  • Organizer: CLEO Europe 2015
  • Place of Presentation: Munich, Germany
  • Year and Date: 2015-06-21
  • Int'l Joint Research
• [Presentation] Power Scaling of InGaN-Blue-LD pumped Pr3+:YLF Laser and Passive Q-switching (2015)
  • Author(s): Kodai Iijima, Ryosuke Kariyama, Hiroki Tanaka, Kenichi Hirosawa, Fumihiko Kannari
  • Organizer: CLEO Europe 2015
  • Place of Presentation: Munich, Germany
  • Year and Date: 2015-06-21
  • Int'l Joint Research
• [Presentation] Power Scaling of Modelocked Ti:sapphire Laser Pumped by High Power InGaN Green Laser Diode (2015)
  • Author(s): Hiroki Tanaka, Ryota Sawada, Ryosuke Kariyama, Aruto Hosaka, Kenichi Hirosawa, Fumihiko Kannari
  • Organizer: CLEO Europe 2015
  • Place of Presentation: Munich, Germany
  • Year and Date: 2015-06-21
  • Int'l Joint Research
• [Presentation] Power scaling and Q-switched operation of a Pr3+:YLF laser pumped by four InGaN-blue-laser-diode (2015)
  • Author(s): K. Iijima, R. Kariyama, H. Tanaka, K. Hirosawa, F. Kannari
  • Organizer: The 3rd International Conference of Advanced Lasers and Photon Sources
  • Place of Presentation: Pacifico Yokohama(神奈川県・横浜市）
  • Year and Date: 2015-04-23
  • Int'l Joint Research
• [Presentation] Passively CW mode-locked red Pr:YLF laser pumped by InGaN laser diodes (2015)
  • Author(s): R. Kariyama, T. Tanaka, K. Iijima, K. Hirosawa, F. Kannari
  • Organizer: The 3rd International Conference of Advanced Lasers and Photon Sources
  • Place of Presentation: Pacifico Yokohama(神奈川県・横浜市）
  • Year and Date: 2015-04-23
  • Int'l Joint Research
• [Presentation] Rate equation analysis of a passively Q-switched Pr3+:YLF laser with a Cr4+:YAG saturable absorber in visible region (2015)
  • Author(s): H. Tanaka, R. Kariyama, K. Iijima, K. Hirosawa, F. Kannari
  • Organizer: The 3rd International Conference of Advanced Lasers and Photon Sources
  • Place of Presentation: Pacifico Yokohama(神奈川県・横浜市）
  • Year and Date: 2015-04-23
  • Int'l Joint Research
• [Presentation] Direct writing of laser waveguides in Pr:ZBLAN glass using ultrafast laser pulses (2015)
  • Author(s): Y. Yamanaka, K. Hirosawa, T. Sato, F. Kannari
  • Organizer: The 3rd International Conference of Advanced Lasers and Photon Sources
  • Place of Presentation: Pacifico Yokohama(神奈川県・横浜市）
  • Year and Date: 2015-04-23
  • Int'l Joint Research
• [Presentation] In-phase synchronization of array laser using intra-Talbot-cavity second harmonic generation (2015)
  • Author(s): 23.Kenichi Hirosawa, Fumio Shohda, Takayuki Yanagisawa, Fumihiko Kannari
  • Organizer: SPIE Photonics West, LASE
  • Place of Presentation: San Francisco (USA)
  • Year and Date: 2015-02-13 – 2015-02-18
• [Presentation] Passive Q-switching of visible Pr3+:LiYF4 laser with Cr4+:YAG saturable absorber and intracavity second harmonic generation at DUV (2014)
  • Author(s): Ryosuke Kariyama, Hiroki Tanaka, Junichiro Kojou, Fumihiko Kannari
  • Organizer: Advanced Solid-State Laser Conference
  • Place of Presentation: Shanghai （China)
  • Year and Date: 2014-11-16 – 2014-11-21
• [Presentation] Femtosecond laser direct written visible waveguide lasers in Pr3+ doped ZBLAN glass using simultaneous spatial and temporal focusing (2014)
  • Author(s): Y. Yamanaka, K. Hirosawa, F. Kannari
  • Organizer: 9th International Conference on Photo-Excited Processes and Applications
  • Place of Presentation: KUNIBIKI MESSE (松江市，島根県）
  • Year and Date: 2014-09-29 – 2014-10-03
• [Presentation] Simultaneous spatial and temporal focusing of femtosecond laser pulses for directly writing optical waveguides in Pr3+ doped ZBLAN Glass (2014)
  • Author(s): Y. Yamanaka, K. Hirosawa, F. Kannari
  • Organizer: 19th International Conference on Ultrafast Phenomena
  • Place of Presentation: Okinawa Convention Center（那覇市，沖縄県）
  • Year and Date: 2014-07-07 – 2014-07-11
• [Presentation] InGaN diode pumped Pr-doped solid-state visible lasers (2014)
  • Author(s): Fumihiko Kannari
  • Organizer: 2014 Laser Display Conference
  • Place of Presentation: National Chung Hsing University（Taiwan）
  • Year and Date: 2014-06-19 – 2014-06-20
  • Invited
• [Presentation] Intracavity second harmonic generation of passively Q-switch modelocked Pr3+-doped fluoride lasers using Cr4+:YAG crystal as a saturable absorber (2014)
  • Author(s): Hiroki Tanaka, Ryosuke Kariyama, Junichiro Kojou, Fumihiko Kannari
  • Organizer: Conference on Lasers and Electro-Optics (CLEO) 2014
  • Place of Presentation: San Jose (USA)
  • Year and Date: 2014-06-08 – 2014-06-13
• [Remarks] http://www.kami.elec.keio.ac.jp/report.html
• [Remarks] 神成研究室ホームページ内 アニュアルレポート
  • URL: http://www.kami.elec.keio.ac.jp/report.html