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Characterization of erbium doped lithium niobate crystals and waveguides

✍ Scribed by M. Mattarelli; S. Sebastiani; J. Spirkova; S. Berneschi; M. Brenci; R. Calzolai; A. Chiasera; M. Ferrari; M. Montagna; G. Nunzi Conti; S. Pelli; G.C. Righini

Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
198 KB
Volume
28
Category
Article
ISSN
0925-3467

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✦ Synopsis

Optical planar waveguides have been fabricated by the titanium in-diffusion process in lithium niobate crystals activated with erbium ions. The waveguides were studied by m-line technique in order to recover the index profile. The effect of the Ti in-diffusion on the structural and spectroscopic properties of the lithium niobate crystals was investigated by Raman and photoluminescence spectroscopies. The presence of titanium has only minor effects on the vibrational properties of the crystal, and no change in the emission properties of the erbium ions is observed.

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In this study, we investigate the emission from a photonic crystal (PC) structure fabricated in Er-doped LiNbO 3 crystal. We report the linear, non-linear, and saturated output intensity as the pumping power is increased. The measurements are taken inside the PC and on the bulk substrate. Purcell ef