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Optical Engineering

Focused ion-beam writing of channel waveguides in bismuth germanate crystal for telecommunication bands
Author(s): Ruiyun He; Sudheer Kumar Vanga; Andrew A. Bettiol; Feng Chen
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Paper Abstract

We report on the fabrication of channel waveguides in bismuth germanate (BGO) crystal using focused ion-beam writing. 1 and 2 MeV He+ ions with different fluences are utilized to directly write waveguides in BGO crystal. The guiding properties of the BGO waveguides are explored at the wavelengths of 632.8 nm, 1.31  μm and 1.55  μm, showing that the channel waveguides support light guidance from visible to telecommunication bands along both transverse-electric and transverse-magnetic polarizations.

Paper Details

Date Published: 28 May 2015
PDF: 4 pages
Opt. Eng. 54(5) 057108 doi: 10.1117/1.OE.54.5.057108
Published in: Optical Engineering Volume 54, Issue 5
Show Author Affiliations
Ruiyun He, Shandong Univ. (China)
Sudheer Kumar Vanga, National Univ. of Singapore (Singapore)
Andrew A. Bettiol, National Univ. of Singapore (Singapore)
Feng Chen, Shandong Univ. (China)


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