We report on the observation of spatial optical simultons in a novel geometry consisting of two partially overlapped, linearly uncoupled planarwaveguides in lithium niobate obtained by reverse proton exchange. Two orthogonally polarized modes are coupled through an off-diagonal tensor element of the quadratic nonlinearity, giving rise to second harmonicgeneration and mutual trapping via cascading. This phenomenon demonstrates a balance between diffraction and self-focusing for two orthogonal modes of different waveguides, and occurs at room temperature in longitudinally uniform waveguides.
|Rivista||JOURNAL OF OPTICS|
|Stato di pubblicazione||Published - 2004|
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy (miscellaneous)
Cino, A. C., Cino, A. C., Di Falco, A., Colace, L., Assanto, G., Amoroso, A., Leo, G., & Amoroso, A. (2004). Bi-color spatial solitons in linearly uncoupled planar waveguides. JOURNAL OF OPTICS, 6, S217-S222.