Light-induced optical waveguide uptapers

descriptionPublicationkeyboard_double_arrow_right Article 01 Jul 1993 English Publisher:Optica Publishing GroupJournal:Optics Letters, volume 18, page 1,035 (issn: 0146-9592, eissn: 1539-4794,

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Authors: S J, Frisken;

doi: 10.1364/ol.18.001035

pmid: 19823281

Light-induced optical waveguide uptapers

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Abstract

Permanent uptapers have been produced in a UV-cured epoxy by a self-induced waveguide, created by exposure to cw 532-nm light. The photorefractive effect in this material produces high-quality, low-loss waveguides, which adiabatically taper to give spot sizes of as much as 50 μm diameter. The waveguides can be used at 1550 nm to form low-cost beam expanders with separations of a few millimeters.

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