Study of photodamage of Mg:Er:LiNbO3 waveguide substrate

Jiancong Bi; Bo Liu; Wei Zheng

doi:10.1117/12.575046

7 February 2005 Study of photodamage of Mg:Er:LiNbO₃ waveguide substrate

Jiancong Bi, Bo Liu, Wei Zheng

Proceedings Volume 5636, Holography, Diffractive Optics, and Applications II; (2005) https://doi.org/10.1117/12.575046
Event: Photonics Asia, 2004, Beijing, China

Abstract

Doped 0.5mol% Er₂O₃ and (2,4,5,6)mol% MgO in LiNbO₃ crystal, Mg:Er:LiNbO₃ crystals were grown by Czochralski technique. The IR transmission spectra of those crystals were measured. The OH^- absorption peak of Mg(2mol%):Er:LiNbO₃ and Mg(4mol%):Er:LiNbO₃ at about 3486 cm^-1,while that of Mg(5mol%):Er:LiNbO₃ and Mg(6mol%):Er:LiNbO₃ at about 3535 cm^-1. The shifting mechanism of OH^- absorption peak was discussed based on the Li-site vacancy model. Using m-line method tested the photodamage of Mg:Er:LiNbO₃ waveguide substrate. The photodamage resistant ability of Mg:Er:LiNbO₃ is higher than that of Er:LiNbO₃. The photodamage resistant ability of Mg(5mol%):Er:LiNbO₃ waveguide substrate improves two orders than that of Er:LiNbO₃.

Citation Download Citation

Jiancong Bi, Bo Liu, and Wei Zheng "Study of photodamage of Mg:Er:LiNbO₃ waveguide substrate", Proc. SPIE 5636, Holography, Diffractive Optics, and Applications II, (7 February 2005); https://doi.org/10.1117/12.575046

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