Development of ultra-compact and highly-efficient wavelength convertors based on hybrid-phase matching

• Project/Area Number: 23760046
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Applied optics/Quantum optical engineering
• Research Institution: The University of Tokyo
• Principal Investigator: MATSUSHITA Tomonori 東京大学, 大学院・工学系研究科, 助教 (50554086)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2011: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
• Keywords: 非線形光学 / 波長変換 / 擬似位相整合 / 化合物半導体 / 分子線エピタキシー / 波長変換素子

Research Abstract

I have showed by numerical simulation that a hybrid modal-phase-matching and quasi-phase-matching wavelength convertor with laterally inverted core structure can achieve conversion efficiency as high as 47400 %/W in a 53.4-mm-long waveguide and be folded up into a 1.1 mm × 3.5 mm domain. By using surface activation bonding technique at room temperature, I have succeeded in fabricating high-index-contrast AlGaAs/Alox (AlAs oxidation layer) waveguides with laterally inverted core structure. And I have proposed a novel wavelength convertor with laterally inverted structure in order to generate frequency-doubled vector-beam.

Research Products

• [Presentation] Fabrication of AlGaAs/Alox Waveguides with Inversion-Stacked Core Structure for Higher-Order Modal-Phase Matching Devices (2013)
  • Author(s): T. Matsushita , Y. Nakamura, S. Matsumoto, T. Onda, I. Shoji, and T. Kondo
  • Organizer: The 10th Conference on Laser and Electro-Optics Pacific Rim (CLEO-PR 2013)
  • Place of Presentation: Kyoto International Conference Center, Kyoto, Japan
  • Year and Date: 2013-07-03
• [Presentation] Design of inversion-stacked AlGaAs waveguiding wavelength convertors forhigher-order-mode beam generation (2012)
  • Author(s): T . Matsushita and T. Kondo
  • Organizer: Topological lightwave synthesis and its applications (T-LWS 2012)
  • Place of Presentation: Chiba University, Chiba, Japan
  • Year and Date: 2012-07-05
• [Presentation] Fabrication of AlGaAs waveguides with laterally inverted core structure for higher-order modal phase matching devices (2012)
  • Author(s): T. Matsushita, K. Murakami, K. Hara,Ichiro Shoji, and T. Kondo
  • Organizer: 8th Asia Pacific Laser Symposium (APLS 2012)
  • Place of Presentation: Huangshan City, Anhui, China
  • Year and Date: 2012-05-29
• [Presentation] Design of inversion-stacked AlGaAs waveguiding wavelength convertors for higher-order-mode beam generation (2012)
  • Author(s): (T. Matsushita) and T. Kondo
  • Organizer: Topological lightwave synthesis and its applications (T-LWS 2012)
  • Place of Presentation: Chiba University, Chiba, Japan
  • Invited
• [Presentation] Hybrid modal-phase-matched andbent-quasi-phase-matched wavelength conversion in AlGaAs/SiO2 rib-type zigzag waveguides (2011)
  • Author(s): T. Matsushita and T. Kondo
  • Organizer: Conference on Laser and Electro-Optics (CLEO2011)
  • Place of Presentation: Baltimore, Maryland, USA.
  • Year and Date: 2011-05-05
• [Remarks]
  • URL: http://www.castle.t.u-tokyo.ac.jp/achievement/
• [Remarks] 東京大学工学部マテリアル工学科近藤研究室ホームページ
  • URL: http://www.castle.t.u-tokyo.ac.jp/achievements/index.html
• [Remarks]
  • URL: http://www.castle.t.u-tokyo.ac.jp/achievements/