“Photonic lantern” spectral filters in multi-core fibre
- 8 June 2012
- journal article
- Published by Optica Publishing Group in Optics Express
- Vol. 20 (13) , 13996-14008
- https://doi.org/10.1364/oe.20.013996
Abstract
Fibre Bragg gratings are written across all 120 single-mode cores of a multi-core optical fibre. The fibre is interfaced to multimode ports by tapering it within a depressed-index glass jacket. The result is a compact multimode “photonic lantern” filter with astrophotonic applications. The tapered structure is also an effective mode scrambler.Keywords
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