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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 14 — Jul. 9, 2007
  • pp: 8805–8811

Time resolved confocal luminescence investigations on Reverse Proton Exchange Nd:LiNbO3 channel waveguides

E. Martín Rodríguez, D. Jaque, E. Cantelar, F. Cussó, G. Lifante, A.C. Busacca, A.C. Cino, and S. Riva Sanseverino  »View Author Affiliations

Optics Express, Vol. 15, Issue 14, pp. 8805-8811 (2007)

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In this work we report on the time and spatial resolved fluorescence of Neodymium ions in LiNbO3 channel waveguides fabricated by Reverse Proton Exchange. The analysis of the fluorescence decay curves obtained with a sub-micrometric resolution has evidenced the presence of a relevant fluorescence quenching inside the channel waveguide. From the comparison between diffusion simulations and the spatial dependence of the 4F3/2 fluorescence decay rate we have concluded that the observed fluorescence quenching can be unequivocally related to the presence of H+ ions in the LiNbO3 lattice. Nevertheless, it turns out that Reverse Proton Exchange guarantees a fluorescence quenching level significantly lower than in similar configurations based on Proton Exchange waveguides. This fluorescence quenching has been found to be accompanied by a relevant red-shift of the 4F3/24I9/2 fluorescence band.

© 2007 Optical Society of America

OCIS Codes
(130.3730) Integrated optics : Lithium niobate
(160.3380) Materials : Laser materials
(230.7370) Optical devices : Waveguides

ToC Category:
Integrated Optics

Original Manuscript: May 3, 2007
Revised Manuscript: June 25, 2007
Manuscript Accepted: June 26, 2007
Published: June 28, 2007

E. M. Rodríguez, D. Jaque, E. Cantelar, F. Cussó, G. Lifante, A.C. Busacca, A. Cino, and S. R. Sanseverino, "Time resolved confocal luminescence investigations on Reverse Proton Exchange Nd:LiNbO3 channel waveguides," Opt. Express 15, 8805-8811 (2007)

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