Work

Nineteen-port photonic lantern with multimode delivery fiber

Year: 2012

Type: article

Abstract: We demonstrate efficient multimode (MM) to single-mode (SM) conversion in a 19-port photonic lantern with a 50 μm core MM delivery fiber. The photonic lantern can be used within the field of astrophotonics for coupling MM starlight to an ensemble of SM fibers in order to perform fiber-Bragg-grating-based spectral filtering. An MM delivery fiber spliced to the photonic lantern offers the advantage that the delivery fiber guides the light from the focal plane of the telescope to the splitter. Therefore, it is no longer necessary to have the splitter mounted directly in the focal plane of the telescope. The coupling loss from a 50 μm core MM fiber to an ensemble of 19 SM fibers and back to a 50 μm core MM fiber is below 1.1 dB.

Source: Optics Letters

DOI: 10.1364/ol.37.000452

Authors: D. Noordegraaf, P. M. W. Skovgaard, R. H. Sandberg, M. D. Maack, J. Bland-Hawthorn, J. S. Lawrence, J. Lægsgaard

Institutions: NKT Holding (Denmark), The University of Sydney, Australian Astronomical Observatory, Technical University of Denmark

Language: English

Topic: Astronomy and Astrophysical Research

Subfield: Instrumentation

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W1996397204

FWCI: 6.423

Cites: 12

Cited by: 22

Related to: 10