| Autor: |
Jubera, M., Villarroel, J., García-Cabañes, A., Carrascosa, M., Olivares, J., Agullo-López, F., Méndez, A., Ramiro, J. B. |
| Předmět: |
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| Zdroj: |
Applied Physics B: Lasers & Optics; Apr2012, Vol. 107 Issue 1, p157-162, 6p |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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