Fabrication and characterization of UV-written channel waveguides in Bi2O3-based glass


Favre, Angélique, Lee, Eric, Apostolopoulos, Vasilis, Gawith, Corin B.E., Tai, Chao-Yi, Taylor, Elizabeth R., Kondo, Yuki and Koizumi, Fumihito (2004) Fabrication and characterization of UV-written channel waveguides in Bi2O3-based glass Optical Materials, 27, (1), pp. 7-13. (doi:10.1016/j.optmat.2004.01.009).

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Description/Abstract

Light-induced refractive index change was investigated in an erbium-doped Bi2O3-based bulk glass using direct UV laser writing at 244 nm. Single mode channel waveguides were obtained with a positive refractive index change of 4 × 10-4 at 633 nm. An upper limit for propagation losses at 980 nm was estimated at 4 dB/cm. A morphological study of the exposed regions revealed that strong interactions occurred between the UV beam and the glass sample, causing physical damage and stresses in the material. To our knowledge, this is the first paper reporting the use of 244 nm laser beam to produce waveguides in a Bi2O3-based glass.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1016/j.optmat.2004.01.009
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Keywords: Bi2O3 glass, UV-writing, optical materials
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ePrint ID: 57218
Date :
Date Event
October 2004Published
Date Deposited: 13 Aug 2008
Last Modified: 16 Apr 2017 17:39
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/57218

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