Abstract
We report the transformation of a linear electro-optically tunable
non-phase-matched second-order nonlinear process into a cascaded
second-order nonlinear process in a bulk KTP crystal to generate the
effect of electro-optically tunable Kerr-type nonlinearity. By applying an
electric field on the x–y plane, parallel to the z-axis of the crystal,
phase mismatch is created, which introduces a nonlinear phase shift
between the launched and reconverted fundamental waves from the generated
second harmonic wave. Due to the nonuniform radial intensity distribution
of a Gaussian beam, a curvature will be introduced into the fundamental
wavefront, which focuses or defocuses the incident beam while propagating
through the crystal.
© 2016 Chinese Laser Press
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription