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arXiv · 1311.0549

Multiband processing of multimode light: combining 3D photonic lanterns with waveguide Bragg gratings

Izabela Spaleniak·Simon Gross·Nemanja Jovanovic·Robert J. Williams·Jon S. Lawrence·Michael J. Ireland·Michael J. Withford
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Abstract

The first demonstration of narrowband spectral filtering of multimode light on a 3D integrated photonic chip using photonic lanterns and waveguide Bragg gratings is reported. The photonic lanterns with multi-notch waveguide Bragg gratings were fabricated using the femtosecond direct-write technique in boro-aluminosilicate glass (Corning, Eagle 2000). Transmission dips of up to 5 dB were measured in both photonic lanterns and reference single-mode waveguides with 10.4-mm-long gratings. The result demonstrates efficient and symmetrical performance of each of the gratings in the photonic lantern. Such devices will be beneficial to space-division multiplexed communication systems as well as for units for astronomical instrumentation for suppression of the atmospheric telluric emission from OH lines.

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Izabela Spaleniak, Simon Gross, Nemanja Jovanovic, Robert J. Williams, Jon S. Lawrence, Michael J. Ireland, Michael J. Withford. 2013-11-04. Multiband processing of multimode light: combining 3D photonic lanterns with waveguide Bragg gratings. https://doi.org/10.1002/lpor.201300129

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