Direct laser written multimode waveguides for astronomical applications

Nemanja Jovanovic, Simon Gross, Christopher Miese, Alexander Fuerbach, Jon Lawrence, Michael Withford

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

1 Citation (Scopus)


 There is a high demand for multimode waveguides in astronomical instrumentation, as atmospheric turbulence distorts stellar wavefronts, broadening the point spread function in the telescope focal plane from the ideal diffraction limit, making coupling to single-mode fibres very lossy. With the aim of creating integrated photonic devices that are compatible with existing multimode fibre installations, we present a thorough characterisation of multimode optical waveguides created by the direct write technique. The waveguides reported are the largest to date (~40 μm core diameters) fabricated by the direct write technique and have numerical apertures of 0.2, which are both commensurate values with standard multimode fibres (50 μm and 0.2 respectively). However, waveguide ellipticity needs to be first overcome.

Original languageEnglish
Title of host publicationAdvanced Photonics & Renewable Energy, OSA Technical Digest- 2010
Place of PublicationWashington, DC
PublisherOptical Society of America (OSA)
Number of pages2
ISBN (Electronic)9781557528964
ISBN (Print)9781557528964
Publication statusPublished - 2010
EventBragg Gratings, Photosensitivity, and Poling in Glass Waveguides, BGPP 2010 - Karlsruhe, Germany
Duration: 21 Jun 201024 Jun 2010

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701


OtherBragg Gratings, Photosensitivity, and Poling in Glass Waveguides, BGPP 2010


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