Stressed waveguides with tubular depressed-cladding inscribed in phosphate glasses by femtosecond hollow laser beams - Université Jean-Monnet-Saint-Étienne Access content directly
Journal Articles Optics Letters Year : 2012

Stressed waveguides with tubular depressed-cladding inscribed in phosphate glasses by femtosecond hollow laser beams

Abstract

We report on the single-step fabrication of stressed optical waveguides with tubular depressed-refractive-index cladding in phosphate glasses by the use of focused femtosecond hollow laser beams. Tubelike low index regions appear under direct exposure due to material rarefaction following expansion. Strained compacted zones emerged in domains neighboring the tubular track of lower refractive index, and waveguiding occurs mainly within the tube core fabricated by the engineered femtosecond laser beam. The refractive index profile of the optical waveguide was reconstructed from the measured transmitted near-field intensity.
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Dates and versions

ujm-00719775 , version 1 (20-07-2012)

Identifiers

  • HAL Id : ujm-00719775 , version 1

Cite

Xuewen Long, Jing Bai, Zhao Wei, Razvan Stoian, Rongqing Hui, et al.. Stressed waveguides with tubular depressed-cladding inscribed in phosphate glasses by femtosecond hollow laser beams. Optics Letters, 2012, 37 (15), pp.3138. ⟨ujm-00719775⟩
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