Abstract
The linear and nonlinear optical properties of a nonuniform waveguide array are experimentally investigated. By reducing the width of a single waveguide, the effective index and induced waveguiding along the defect is decreased. Due to the positive nonlinearity, the index difference is reduced for increasing power levels with the result that the field escapes. Waveguiding is suppressed by the action of the nonlinearity.
Original language | English |
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Pages (from-to) | 1348-1350 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 75 |
Issue number | 10 |
DOIs | |
State | Published - 6 Sep 1999 |
Externally published | Yes |