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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 19, Iss. 21 — Nov. 1, 1994
  • pp: 1726–1728

Two-photon-resonant photoinduced second-harmonic generation in Er3+-doped germano-aluminosilicate optical fibers pumped at 1.319 μm

J. Miguel Hickmann, E. A. Gouveia, A. S. Gouveia-Neto, D. C. Dini, and S. Celaschi  »View Author Affiliations


Optics Letters, Vol. 19, Issue 21, pp. 1726-1728 (1994)
http://dx.doi.org/10.1364/OL.19.001726


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Abstract

The growth of a two-photon-resonant photoinduced second-harmonic signal at 660 nm in Er3+-dopect GeO2–Al2O3–SiO2 single-mode optical fibers pumped by a Nd:YAG laser at 1.319 μm is reported. Defect states in the band gap are optically excited through a resonant two-photon absorption process connecting the 4I15/24F9/2 energy levels of the erbium ions present in the fiber core. As a result a periodic χ(2)grating is formed, and efficient second-harmonic generation takes place. For erbium-free GeO2-doped silica test fibers no second-harmonic signal has been detected, even after hours of seeded preparation process.

© 1994 Optical Society of America

History
Original Manuscript: July 19, 1994
Published: November 1, 1994

Citation
J. Miguel Hickmann, D. C. Dini, S. Celaschi, E. A. Gouveia, and A. S. Gouveia-Neto, "Two-photon-resonant photoinduced second-harmonic generation in Er3+-doped germano-aluminosilicate optical fibers pumped at 1.319 μm," Opt. Lett. 19, 1726-1728 (1994)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-19-21-1726

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