Compressive optical imaging with a photonic lantern

Abstract

The thin and flexible nature of optical fibres often makes them the ideal technology to view biological processes in-vivo, but current microendoscopic approaches are limited in spatial resolution. Here, we demonstrate a new route to high resolution microendoscopy using a multicore fibre (MCF) with an adiabatic multimode-to-singlemode photonic lantern transition formed at the distal end by tapering. We show that distinct multimode patterns of light can be projected from the output of the lantern by individually exciting the single-mode MCF cores, and that these patterns are highly stable to fibre movement. This capability is then exploited to demonstrate a form of single-pixel imaging, where a single pixel detector is used to detect the fraction of light transmitted through the object for each multimode pattern. A custom compressive imaging algorithm we call SARA-COIL is used to reconstruct the object using only the pre-measured multimode patterns themselves and the detector signals.

24 pages, 5 figs

References in corpus (6)

• Compressive ghost imaging
• Normalized Ghost Imaging
• The Photonic Lantern
• Compressed sensing imaging techniques for radio interferometry
• Sparsity Averaging Reweighted Analysis (SARA): a novel algorithm for radio-interferometric imaging
• Multiplexed Single-Mode Wavelength-to-Time Mapping of Multimode Light

Cited by in corpus (7)

• Memory effect assisted imaging through multimode optical fibres
• Confocal 3D reflectance imaging through multimode fibers without wavefront shaping
• How to build the optical inverse of a multimode fibre
• Three-Mode Photonic Lanterns: Comprehensive Analysis from Theory to Experiments
• Illuminating the lantern: coherent, spectro-polarimetric characterisation of a multimode converter
• Source Wavefront Generation for a Non-Interferometric Reconfigurable Null Test using a Photonic Lantern
• Wavelength-Dependent Evolution of Full-Field Transfer Matrices in Photonic Lanterns