Low-loss planar optical waveguides in strontium barium niobate crystals formed by ion-beam implantation
Publication date
1995
Document type
Research article
Author
Organisational unit
Universität Osnabrück
Pubmed ID
ISSN
Series or journal
Optics letters
Periodical volume
20
Periodical issue
11
First page
1256
Last page
1258
Part of the university bibliography
Nein
Abstract
Planar optical waveguides have been formed in strontium barium niobate single crystals by either proton or heliumion implantation. The profiles of the ordinary and the extraordinary refractive indices are deduced from dark-line mode spectroscopy. Optical barriers with depths to Deltan(e) = 2.6% for protons and Deltan(e) = 5.5% for helium are obtained. By proton implantation we find a very low intensity loss of 0.4 cm(-1) for ordinarily and a higher value of 2.7 cm(-1) for extraordinarily polarized light at 632.8 nm. For helium-implanted waveguides both values are ~4 cm(-1).
Version
Not applicable (or unknown)
Access right on openHSU
Metadata only access