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Optics Letters

Optics Letters


  • Vol. 18, Iss. 20 — Oct. 15, 1993
  • pp: 1718–1720

Nonlinear refractive index of erbium-doped Y2O3 integrated-optical waveguides

T. H. Hoekstra, B. J. Offrein, P. V. Lambeck, and Th. J. A. Popma  »View Author Affiliations

Optics Letters, Vol. 18, Issue 20, pp. 1718-1720 (1993)

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Self-induced phase modulation in erbium-doped polycrystalline Y2O3 integrated-optic waveguides is studied by use of a Mach–Zehnder interferometric setup. We determined the wavelength dispersion of the nonlinear refractive index near the 4F9/2 absorption band and show that it corresponds qualitatively with a Kramers–Krönig analysis. The nonlinear coefficient at 670 nm was determined to be 1.4 × 10−14 m2/W and has an electronic origin with a slow relaxation time of 6 ms.

© 1993 Optical Society of America

Original Manuscript: May 12, 1993
Published: October 15, 1993

T. H. Hoekstra, B. J. Offrein, P. V. Lambeck, and Th. J. A. Popma, "Nonlinear refractive index of erbium-doped Y2O3 integrated-optical waveguides," Opt. Lett. 18, 1718-1720 (1993)

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