LOW-LOSS PLANAR OPTICAL WAVE-GUIDES IN STRONTIUM BARIUM NIOBATE CRYSTALS FORMED BY ION-BEAM IMPLANTATION

Autor(en): KIP, D
AULKEMEYER, S
MORETTI, P
Stichwörter: BATIO3; KNBO3; LINBO3; Optics; PROFILES; WAVE-GUIDES
Erscheinungsdatum: 1995
Herausgeber: OPTICAL SOC AMER
Journal: OPTICS LETTERS
Volumen: 20
Ausgabe: 11
Startseite: 1256
Seitenende: 1258
Zusammenfassung: 
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 Delta n(e) = 2.6% for protons and Delta n(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 similar to 4 cm(-1).
ISSN: 01469592
DOI: 10.1364/OL.20.001256

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