title: Depolarization of Pulsar Radio Emission.
abstract: We show that intensity-dependent depolarization of single pulses may be due to the nonlinear decay of the "upper" ordinary (O) mode into an unpolarized extraordinary mode and a backward-propagating wave. The decay occurs in the innermost parts of the pulsar magnetosphere for obliquely propagating O waves.
authors.initials: M
authors.lastname: Lyutikov