Journal
APPLIED PHYSICS EXPRESS
Volume 12, Issue 7, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.7567/1882-0786/ab2a2e
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Funding
- National Natural Science Foundation of China (NSFC) [11704201, 61575097, 51672164]
- Natural Science Foundation of Tianjin City (NSFTJ) [17JCQNJC01600]
- Natural Science Foundation of Shandong Province [2016ZRC01087, ZR2017MEM016]
- Fundamental Research Funds for the Central Universities
- Ion Beam Center of the Helmholtz-Zentrum Dresden-Rossendorf (HZDR)
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We report on the fabrication of planar waveguide and ridge waveguides in a KTN crystal by using swift heavy C5+ ions irradiation and femtosecond laser ablation. The reconstructed refractive index profile of the irradiated KTN waveguide illustrates an optical well and barrier distribution. The confocal Raman spectra suggest that the enhanced tetragonality and the lattice damage occurs in the waveguide region and the optical barrier area, respectively. The optical spatial solitons at 632.8 nm are observed from the planar waveguide and the ridge waveguides with a width of 60 mu m and 20 mu m, respectively, at room temperature. (C) 2019 The Japan Society of Applied Physics
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