TY - JOUR
T1 - Second-harmonic generation in surface periodically poled lithium niobate waveguides
T2 - On the role of multiphoton absorption
AU - Cherchi, M.
AU - Stivala, S.
AU - Pasquazi, A.
AU - Busacca, A. C.
AU - Riva Sanseverino, S.
AU - Cino, A. C.
AU - Colace, L.
AU - Assanto, G.
PY - 2008/11/1
Y1 - 2008/11/1
N2 - Second-harmonic generation is investigated in lithium niobate channels realized by proton exchange and quasi-phase matched by surface periodic poling. The reduction in conversion efficiency at high powers is interpreted in terms of multiphoton absorption via two-color terms, yielding an estimate of the dominating three-photon process.
AB - Second-harmonic generation is investigated in lithium niobate channels realized by proton exchange and quasi-phase matched by surface periodic poling. The reduction in conversion efficiency at high powers is interpreted in terms of multiphoton absorption via two-color terms, yielding an estimate of the dominating three-photon process.
UR - http://www.scopus.com/inward/record.url?scp=55349146569&partnerID=8YFLogxK
U2 - 10.1007/s00340-008-3219-8
DO - 10.1007/s00340-008-3219-8
M3 - Article
AN - SCOPUS:55349146569
SN - 0946-2171
VL - 93
SP - 559
EP - 565
JO - Applied Physics B: Lasers and Optics
JF - Applied Physics B: Lasers and Optics
IS - 2-3
ER -