Low Propagation Loss of Single-Mode Planar Waveguides on MgF Crystals

The single-mode planar waveguides were fabricated on MgF 2 crystals by 6.0 MeV carbon ion implantation with the fluence of 1 × 1015 ions/cm 2 . The guiding modes were measured by the prism-coupling method at the wavelength of 632.8 nm. The near-field intensity distributions were obtained by the end-...

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Bibliographic Details
Published in:Journal of lightwave technology 2015-06, Vol.33 (11), p.2228-2232
Main Authors: Zhang, Lian, Zhao, Jin-Hua, Liu, Peng, Liu, Tao, Zhou, Yu-Fan, Yu, Xiao-Fei, Wang, Xue-Lin
Format: Article
Language:English
Subjects:
Annealing
Crystals
Educational institutions
Ion implantation
Optical device fabrication
optical materials
Optical waveguides
planar waveguide
Refractive index
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Summary:The single-mode planar waveguides were fabricated on MgF 2 crystals by 6.0 MeV carbon ion implantation with the fluence of 1 × 1015 ions/cm 2 . The guiding modes were measured by the prism-coupling method at the wavelength of 632.8 nm. The near-field intensity distributions were obtained by the end-face coupling method, and the simulation of the light propagation process was performed simultaneously for comparison. The thermal stability was investigated by annealing treatment at different temperatures ranging from 260 °C to 400 °C in air. After suitable annealing, the minimum propagation loss of the waveguide can be reduced to 0.4 dB/cm.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2015.2407880