Evolution of nonlinear guided waves along a bent planar waveguide

Abstract

Optical field propagation in a nonlinear bent slab waveguide with a Kerr-like nonlinear cladding medium is presented. With increasing input power, the self-focusing effect significantly disturbs the original waveguide configuration, and a nonstationary evolution behavior is found. It is shown that the onset and the direction of soliton emission are sensitive to the guiding capability of the initial waveguide. In pariicular, a novel result is observed when the waveguide supporis more than one mode. 0 ABSTRACT A technique using a coaxial diode test fixture for the mount-independenr characterization of potentially unstable two-terminal devices is presented. A standard three-terminal calibration procedure using reference packages is used to calibrate to the surface of the packaged device. The test fixture is designed to present a low, nonresonant impedance to the device so that measurement resolution is enhanced. The Characterization of an IMPATT diode is presented as an example. 0 1993 John Wiley & Sons, Inc.