COUPLED-WAVE ANALYSIS OF THE BRAGG EFFECT WAVE-GUIDE COUPLER

Autor(en): DRIEMEIER, W
Stichwörter: DIFFRACTION; GRATING COUPLERS; GUIDES; Optics; PHASE GRATINGS; POLYMER
Erscheinungsdatum: 1991
Herausgeber: TAYLOR & FRANCIS LTD
Journal: JOURNAL OF MODERN OPTICS
Volumen: 38
Ausgabe: 2
Startseite: 363
Seitenende: 377
Zusammenfassung: 
A coupled-wave analysis is presented for the Bragg effect waveguide coupler. This device consists of a slanted volume phase grating which is integrated inside the lightguiding layer of an optical waveguide. The wave propagation is described by a set of leaky wave modes. Self-consistency relations are derived to determine the angular mode spectrum and the corresponding radiation loss coefficients. A maximum input coupling efficiency of 80% is predicted for an incident Gaussian beam. The power of a waveguide mode should be emitted into a single output beam reaching an efficiency of almost 100%.
ISSN: 09500340
DOI: 10.1080/09500349114550371

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