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Title: Analysis and optimization of propagation losses in LiNbO 3 optical waveguides produced by swift heavy-ion irradiation
Authors: Jubera, M.; Villarroel, J.; García Cabañes, A.; Carrascosa, M.; Olivares Villegas, José; Agulló-López, F.; Méndez, A.; Ramiro, J.B.
Issue Date: 2012
Publisher: Springer
Citation: Applied Physics B: Lasers and Optics 107: 157- 162 (2012)
Abstract: The propagation losses (PL) of lithium niobate optical planar waveguides fabricated by swift heavy-ion irradiation (SHI), an alternative to conventional ion implantation, have been investigated and optimized. For waveguide fabrication, congruently melting LiNbO 3 substrates were irradiated with F ions at 20 MeV or 30 MeV and fluences in the range 10 13- 10 14 cm -2. The influence of the temperature and time of post-irradiation annealing treatments has been systematically studied. Optimum propagation losses lower than 0.5 dB/cm have been obtained for both TE and TM modes, after a two-stage annealing treatment at 350 and 375°C. Possible loss mechanisms are discussed. © 2012 Springer-Verlag.
URI: http://hdl.handle.net/10261/56910
Identifiers: doi: 10.1007/s00340-012-4897-9
issn: 0946-2171
DOI: 10.1007/s00340-012-4897-9
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