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Cladding-like waveguide fabricated by cooperation of ultrafast laser writing and ion irradiation: characterization and laser generation

Authors :
Jinman Lv
Zhen Shang
Feng Chen
Yang Tan
Javier R. Vázquez de Aldana
Source :
GREDOS: Repositorio Institucional de la Universidad de Salamanca, Universidad de Salamanca (USAL), GREDOS. Repositorio Institucional de la Universidad de Salamanca, instname
Publication Year :
2017

Abstract

We report the surface cladding-like waveguide fabricated by the cooperation of the ultrafast laser writing and the ion irradiation. The ultrafast laser writes tracks near the surface of the Nd:YAG crystal, constructing a semi-circle columnar structure with a decreased refractive index of – 0.00208. Then, the Nd:YAG crystal is irradiated by the Carbon ion beam, forming an enhanced-well in the semi-circle columnar with an increased refractive index of + 0.0024. Tracks and the enhanced-well consisted a surface cladding-like waveguide. Utilizing this cladding-like waveguide as the gain medium for the waveguide lasing, optimized characterizations were observed compared with the monolayer waveguide. This work demonstrates the refractive index of the Nd:YAG crystal can be well tailored by the cooperation of the ultrafast laser writing and the ion irradiation, which provides an convenient way to fabricate the complex and multilayered photonics devices.

Details

Language :
English
Database :
OpenAIRE
Journal :
GREDOS: Repositorio Institucional de la Universidad de Salamanca, Universidad de Salamanca (USAL), GREDOS. Repositorio Institucional de la Universidad de Salamanca, instname
Accession number :
edsair.doi.dedup.....960e16ed772acdd5e28db029b1488f3e