Abstract

It is shown how the impulse response of Bragg reflection grating filters may be found from coupled-mode theory, by optical path integration in the time domain. The solution is found as a series of integrals, which shows that the response is discontinuous and of significant duration for realistic coupling strength. Problems with convergence of the solution are discussed. The results are applicable to guided-wave demultiplexers based on volume gratings.

© 1993 Optical Society of America

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