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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 24 — Dec. 15, 2013
  • pp: 5248–5251

Ion migration assisted inscription of high refractive index contrast waveguides by femtosecond laser pulses in phosphate glass

T. Toney Fernandez, P. Haro-González, B. Sotillo, M. Hernandez, D. Jaque, P. Fernandez, C. Domingo, J. Siegel, and J. Solis  »View Author Affiliations

Optics Letters, Vol. 38, Issue 24, pp. 5248-5251 (2013)

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In this Letter, we report on the successful fabrication of low loss, high refractive index contrast waveguides via ion migration upon femtosecond laser writing in phosphate glass. Waveguides were produced in two different phosphate glass compositions with high and low La2O3 content. In the La-rich glass, a large refractive index increase in the guiding region was observed due to the incoming migration of La accompanied by the out-diffusion of K. The much smaller refractive index change in the La-less glass is caused by rearrangements of the glass structure. These results confirm the feasibility of adapting the glass composition for enabling the laser writing of high refractive index contrast structures via spatially selective modification of the glass composition.

© 2013 Optical Society of America

OCIS Codes
(160.5690) Materials : Rare-earth-doped materials
(180.2520) Microscopy : Fluorescence microscopy
(320.7090) Ultrafast optics : Ultrafast lasers
(130.2755) Integrated optics : Glass waveguides

ToC Category:
Integrated Optics

Original Manuscript: September 10, 2013
Revised Manuscript: October 25, 2013
Manuscript Accepted: November 4, 2013
Published: December 4, 2013

T. Toney Fernandez, P. Haro-González, B. Sotillo, M. Hernandez, D. Jaque, P. Fernandez, C. Domingo, J. Siegel, and J. Solis, "Ion migration assisted inscription of high refractive index contrast waveguides by femtosecond laser pulses in phosphate glass," Opt. Lett. 38, 5248-5251 (2013)

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