Fabrication of an Optical Waveguide-Mode-Field Compressor in Glass Using a Femtosecond Laser

We report on fabrication of an optical waveguide-mode-field compressor in glass using a femtosecond laser. Our approach is based on building up a stress field within the waveguiding area which is realized by sandwiching the waveguide between a pair of laser-induced-modification-tracks. To induce an...

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Detalles Bibliográficos
Autores principales: Liu, Zhengming, Liao, Yang, Wang, Zhenhua, Zhang, Zhihao, Liu, Zhaoxiang, Qiao, Lingling, Cheng, Ya
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6212878/
https://www.ncbi.nlm.nih.gov/pubmed/30308989
http://dx.doi.org/10.3390/ma11101926
Descripción
Sumario:We report on fabrication of an optical waveguide-mode-field compressor in glass using a femtosecond laser. Our approach is based on building up a stress field within the waveguiding area which is realized by sandwiching the waveguide between a pair of laser-induced-modification-tracks. To induce an adiabatic conversion of the optical mode in the waveguide, the tracks are intentionally designed to be tapered along the waveguide. We show that our technique can allow for reducing the mode field size in a single mode waveguide from more than 10 μm to around 7 μm.

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