Coupling of partially coherent light into planar waveguides

Author

Saastamoinen, Toni ; Kuittinen, Markku ; Vahimaa, Pasi ; Turuneru, J. ; Tervo, Jani

Author_Institution

Dept. of Phys., Joensuu Univ., Finland

Volume

2

fYear

2005

fDate

12-17 Sept. 2005

Firstpage

264

Abstract

Edge coupling of a focused partially coherent Gaussian Schell-model beam into a planar dielectric waveguide is examined. The incident field is decomposed into a sum of coherent modes that are expressed as a discrete superposition of plane-wave components. A model based on the rigorous diffraction theory of gratings is used to replace the waveguide with a corresponding periodic multilayer structure to determine the coupling efficiencies. The results obtained with the quasi-rigorous approach are compared with the predictions of the overlap integral method.

Keywords

diffraction gratings; laser beams; light coherence; optical couplers; optical planar waveguides; optical waveguide theory; Gaussian Schell-model beam; coherent modes; coupling efficiency; edge coupling; focusing; partially coherent light; periodic multilayer structure; planar waveguides; rigorous diffraction grating theory; Coherence; Dielectrics; Diffraction gratings; Optical coupling; Optical waveguide theory; Optical waveguides; Periodic structures; Planar waveguides; Waveguide components; Waveguide discontinuities;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Optoelectronics and Lasers, 2005. Proceedings of CAOL 2005. Second International Conference on

Print_ISBN

0-7803-9130-6

Type

conf

DOI

10.1109/CAOL.2005.1553972

Filename

1553972