Multicore fibre Bragg grating developments for OH suppression

Seong-sik Min; Christopher Trinh; Sergio Leon-Saval; Nemanja Jovanovic; Peter Gillingham; Joss Bland-Hawthorn; Jon Lawrence; Tim A. Birks; Martin M. Roth; Roger Haynes; Lisa Fogarty

doi:10.1117/12.925791

13 September 2012 Multicore fibre Bragg grating developments for OH suppression

Seong-sik Min, Christopher Trinh, Sergio Leon-Saval, Nemanja Jovanovic, Peter Gillingham, Joss Bland-Hawthorn, Jon Lawrence, Tim A. Birks, Martin M. Roth, Roger Haynes, Lisa Fogarty

Author Affiliations +

Proceedings Volume 8450, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II; 84503L (2012) https://doi.org/10.1117/12.925791
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

Abstract

We discuss the development of multi-core fiber Bragg gratings (FBGs) to be applied to astrophotonics, more specifically to near-infrared spectroscopy for ground-based instruments. The multi-core FBGs require over 100 notches to reject the OH lines in a broad wavelength range (160 nm). The number of cores of the fiber should correspond to the mode number in the multi-mode fibers and should be large enough to be able to capture a sufficient amount of light from the telescope. A phase-mask based technique is used to fabricate the multi-core FBGs.

Citation Download Citation

Seong-sik Min, Christopher Trinh, Sergio Leon-Saval, Nemanja Jovanovic, Peter Gillingham, Joss Bland-Hawthorn, Jon Lawrence, Tim A. Birks, Martin M. Roth, Roger Haynes, and Lisa Fogarty "Multicore fibre Bragg grating developments for OH suppression", Proc. SPIE 8450, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II, 84503L (13 September 2012); https://doi.org/10.1117/12.925791

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