Propagation of eigenmodes and transfer functions in waveguide WDM structures

Autor:	K. Neiser, U. Geuss, Vladimir A. Mashkov, S. Francoeur, Henryk Temkin
Rok vydání:	1998
Předmět:	Wave propagation business.industry Photonic integrated circuit Mathematical analysis Physics::Optics Waveguide (optics) Transfer function WKB approximation Amplitude Optics Electromagnetism business Star coupler Mathematics
Zdroj:	SPIE Proceedings.
ISSN:	0277-786X
DOI:	10.1117/12.300940
Popis:	A method of propagation functions and transfer amplitudes suitable for the design of integrated optical circuits is presented. The method is based on vectorial formulation of electrodynamics: the distributions and propagation of electromagnetic fields in optical circuits is described by equivalent surface sources. This approach permits a division of complex optical waveguide structures into sets of primitive blocks and to separately calculate the transfer function and the transfer amplitude for each block. The transfer amplitude of the entire optical system is represented by a convolution of transfer amplitudes of its primitive blocks. The eigenvalues and eigenfunctions of arbitrary waveguide structure are obtained in the WKB approximation and compared with other methods. The general approach is illustrated with the transfer amplitude calculations for Dragone's star coupler and router.
Databáze:	OpenAIRE
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