Analysis of antiresonant reflecting optical waveguide gratings by use of the Method of Lines
2003 (English)In: Applied Optics, ISSN 0003-6935, E-ISSN 1539-4522, Vol. 42, no 18, 3488-3494 p.Article in journal (Refereed) Published
The modal spectral response of an antiresonant reflecting optical waveguide (ARROW) with periodic corrugations or grating is calculated for both shallow and deep gratings with the Method of Lines. The effect of the ARROW layer thickness and the grating depth on the spectral response is studied. It is found that when the ARROW-layer thickness is close to resonance, the ripples in the reflection spectra become smooth and the peak reflectivity drops. This is attributed to the large increase in the leakage loss of the ARROW waveguide near resonance. The ARROW grating is characterized by modal reflectivity spectra, which exhibit a strong polarization discrimination property, in favor of the TE polarization.
Place, publisher, year, edition, pages
2003. Vol. 42, no 18, 3488-3494 p.
Spectral response; Diffraction gratings; Light polarization; Optical fibers; Optical waveguides
IdentifiersURN: urn:nbn:se:kth:diva-24233DOI: 10.1364/AO.42.003488ISI: 000183661700005OAI: oai:DiVA.org:kth-24233DiVA: diva2:345776
QC 201008272010-08-272010-08-272010-08-27Bibliographically approved