Monolithic waveguide laser mode-locked by embedded Ag nanoparticles operating at 1 μm

  • Rang Li
    School of Physics, State Key Laboratory of Crystal Materials , Shandong University , 27 Shan Da Nan Lu , Jinan 250100 , China
  • Chi Pang
    School of Physics, State Key Laboratory of Crystal Materials , Shandong University , 27 Shan Da Nan Lu , Jinan 250100 , China
  • Ziqi Li
    School of Physics, State Key Laboratory of Crystal Materials , Shandong University , 27 Shan Da Nan Lu , Jinan 250100 , China
  • Ningning Dong
    Key Laboratory of Micro-Nano Optoelectronic Materials and Devices, Key Laboratory of Materials for High-Power Laser , Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences , Shanghai 201800 , China
  • Jun Wang
    Key Laboratory of Micro-Nano Optoelectronic Materials and Devices, Key Laboratory of Materials for High-Power Laser , Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences , Shanghai 201800 , China
  • Feng Ren
    Department of Physics, Center for Ion Beam Application and Center for Electron Microscopy , Wuhan University , Wuhan 430072 , China
  • Shavkat Akhmadaliev
    Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research , Bautzner Landstr. 400 , Dresden 01328 , Germany
  • Shengqiang Zhou
    Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research , Bautzner Landstr. 400 , Dresden 01328 , Germany
  • Feng Chen
    School of Physics, State Key Laboratory of Crystal Materials , Shandong University , 27 Shan Da Nan Lu , Jinan 250100 , China

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説明

<jats:title>Abstract</jats:title> <jats:p>Monolithic waveguide laser devices are required to achieve on-chip lasing. In this work, a new design of a monolithic device with embedded Ag nanoparticles (NPs) plus the Nd:YAG ridge waveguide has been proposed and implemented. By using Ag<jats:sup>+</jats:sup> ion implantation, the embedded Ag NPs are synthesized on the near-surface region of the Nd:YAG crystal, resulting in the significant enhancement of the optical nonlinearity of Nd:YAG and offering saturable absorption properties of the crystal at a wide wavelength band. The subsequent processing of the O<jats:sup>5+</jats:sup> ion implantation and diamond saw dicing of crystal finally leads to the fabrication of monolithic waveguide with embedded Ag NPs. Under an optical pump, the Q-switched mode-locked waveguide lasers operating at 1 μm is realized with the pulse duration of 29.5 ps and fundamental repetition rate of 10.53 GHz, owing to the modulation of Ag NPs through evanescent field interaction with waveguide modes. This work introduces a new approach in the application of monolithic ultrafast laser devices by using embedded metallic NPs.</jats:p>

収録刊行物

  • Nanophotonics

    Nanophotonics 8 (5), 859-868, 2019-03-23

    Walter de Gruyter GmbH

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