Second generation OH suppression filters using multicore fibres

R. Haynes, T.A. Birks, J. Bland-Hawthorn, J.L. Cruz, A. Diez, S.C. Ellis, D. Haynes, R.G. Krämer, B.J. Mangan, S. Min, D.F. Murphy, S. Nolte, J.C. Olaya, J.U. Thomas, C.Q. Trinh, A. Tünnermann, C. Voigtländer

Research output: Contribution to journalArticle

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Abstract

Ground based near-infrared observations have long been plagued by poor sensitivity when compared to visible observations as a result of the bright narrow line emission from atmospheric OH molecules. The GNOSIS instrument recently commissioned at the Australian Astronomical Observatory uses Photonic Lanterns in combination with individually printed single mode fibre Bragg gratings to filter out the brightest OH-emission lines between 1.47 and 1.70μm. GNOSIS, reported in a separate paper in this conference, demonstrates excellent OH-suppression, providing very "clean" filtering of the lines. It represents a major step forward in the goal to improve the sensitivity of ground based near-infrared observation to that possible at visible wavelengths, however, the filter units are relatively bulky and costly to produce. The 2nd generation fibre OH-Suppression filters based on multicore fibres are currently under development. The development aims to produce high quality, cost effective, compact and robust OH-Suppression units in a single optical fibre with numerous isolated single mode cores that replicate the function and performance of the current generation of "conventional" photonic lantern based devices. In this paper we present the early results from the multicore fibre development and multicore fibre Bragg grating imprinting process.
Original languageEnglish
Article number845011
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume8450
DOIs
Publication statusPublished - 2012
EventModern Technologies in Space- and Ground-Based Telescopes and Instrumentation II - Amsterdam, Denmark
Duration: 1 Jul 20126 Jul 2012

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retarding
Fiber
Fiber Grating
Fiber Bragg gratings
Bragg Grating
Filter
Photonics
filters
fibers
Fibers
Line
Infrared
Infrared radiation
Unit
Single-mode Fiber
Bragg gratings
Observatories
Single mode fibers
Single Mode
Observatory

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Second generation OH suppression filters using multicore fibres. / Haynes, R.; Birks, T.A.; Bland-Hawthorn, J.; Cruz, J.L.; Diez, A.; Ellis, S.C.; Haynes, D.; Krämer, R.G.; Mangan, B.J.; Min, S.; Murphy, D.F.; Nolte, S.; Olaya, J.C.; Thomas, J.U.; Trinh, C.Q.; Tünnermann, A.; Voigtländer, C.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 8450, 845011, 2012.

Research output: Contribution to journalArticle

Haynes, R, Birks, TA, Bland-Hawthorn, J, Cruz, JL, Diez, A, Ellis, SC, Haynes, D, Krämer, RG, Mangan, BJ, Min, S, Murphy, DF, Nolte, S, Olaya, JC, Thomas, JU, Trinh, CQ, Tünnermann, A & Voigtländer, C 2012, 'Second generation OH suppression filters using multicore fibres', Proceedings of SPIE - The International Society for Optical Engineering, vol. 8450, 845011. https://doi.org/10.1117/12.925923
Haynes, R. ; Birks, T.A. ; Bland-Hawthorn, J. ; Cruz, J.L. ; Diez, A. ; Ellis, S.C. ; Haynes, D. ; Krämer, R.G. ; Mangan, B.J. ; Min, S. ; Murphy, D.F. ; Nolte, S. ; Olaya, J.C. ; Thomas, J.U. ; Trinh, C.Q. ; Tünnermann, A. ; Voigtländer, C. / Second generation OH suppression filters using multicore fibres. In: Proceedings of SPIE - The International Society for Optical Engineering. 2012 ; Vol. 8450.
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