Citation
U. Peschel et al., Nonlinearly induced escape from a defect state in waveguide arrays, APPL PHYS L, 75(10), 1999, pp. 1348-1350
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951
→ ACNP
Volume
75
Issue
10
Year of publication
1999
Pages
1348 - 1350
Database
ISI
SICI code
0003-6951(19990906)75:10<1348:NIEFAD>2.0.ZU;2-Y
Abstract
We experimentally investigate the linear and nonlinear optical properties o
f a nonuniform waveguide array. By reducing the width of a single waveguide
, we decrease its effective index and induce waveguiding along the defect.
Due to the positive nonlinearity, the index difference is reduced for incre
asing power levels with the result that the field escapes. Waveguiding is s
uppressed by the action of the nonlinearity. (C) 1999 American Institute of
Physics. [S0003-6951(99)01136-5].