Brief Communications

Coupled-wave equations for a corrugated waveguide

N. N. Martynov


Abstract: A theoretical analysis is made of the diffraction of a guided mode in a periodically corrugated section of a slab waveguide. The case of the Nth Bragg resonance is considered. It is shown that the amplitudes of the guided modes satisfy the coupled-wave equations. Analytic expressions are given for the amplitudes of the continuous-spectrum modes.

UDC: 621.378.33

PACS: 42.80.Lt

Received: 15.01.1979

 English version: Soviet Journal of Quantum Electronics, 1979, 9:8, 1062–1063