Seeing through multimode fibers with real-valued intensity transmission matrices
arXiv:2003.00224 · doi:10.1364/OE.396734
Abstract
Image transmission through multimode optical fibers has been an area of immense interests driven by the demand for miniature endoscopes in biomedicine and higher speed and capacity in telecommunications. Conventionally, a complex-valued transmission matrix is obtained experimentally to link the input and output light fields of a multimode fiber for image retrieval, which complicates the experimental setup and increases the computational complexity. Here, we report a simple and high-speed method for image retrieval based on our discovery of a pseudo-linearity between the input and output light intensity distributions of multimode fibers. We studied the impact of several key parameters to image retrieval, including image pixel count, fiber core diameter and numerical aperture. We further demonstrated that a wide variety of input binary images could be faithfully retrieved from measured output speckle patterns using this method, promising to be useful for highly miniaturized endoscopy in biomedicine and spatial-mode-division multiplexing in telecommunications.
References in corpus (23)
- Double-slit photoelectron interference in strong-field ionization of the neon dimer
- Measuring the Transmission Matrix in Optics : An Approach to the Study and Control of Light Propagation in Disordered Media
- Non-invasive real-time imaging through scattering layers and around corners via speckle correlations
- Image Transmission Through an Opaque Material
- Light fields in complex media: mesoscopic scattering meets wave control
- Deep speckle correlation: a deep learning approach towards scalable imaging through scattering media
- Focusing and Compression of Ultrashort Pulses through Scattering Media
- Learning to see through multimode fibers
- Superpixel-based spatial amplitude and phase modulation using a digital micromirror device
- High-fidelity multimode fibre-based endoscopy for deep-brain in vivo imaging
- Reference-less measurement of the transmission matrix of a highly scattering material using a DMD and phase retrieval techniques
- Transmission of natural scene images through a multimode fibre
- Digital confocal microscopy through a multimode fiber
- Online learning of the transfer matrix of dynamic scattering media: wavefront shaping meets multidimensional time series
- Wavefront shaping in complex media at 350 KHz with a 1D-to-2D transform
- Light scattering control in transmission and reflection with neural networks
- Mode Control in a Multimode Fiber Through Acquiring its Transmission Matrix from a Reference-less Optical System
- Transmission-matrix-based point-spread-function engineering through a complex medium
- Non-invasive light focusing in scattering media using speckle variance optimization
- Characterising optical fibre transmission matrices using metasurface reflector stacks for lensless imaging without distal access
- Principal modes in multimode fibers: exploring the crossover from weak to strong mode coupling
- Two-Photon Lensless Micro-endoscopy with in-situ Wavefront Correction
- Spatio-temporal correlations in multimode fibers for pulse delivery
Cited by in corpus (4)
- Controlling light propagation in multimode fibers for imaging, spectroscopy and beyond
- Image transmission through a flexible multimode fiber by deep learning
- Video-rate dual-modal forward-viewing photoacoustic and fluorescence endo-microscopy through a multimode fibre
- Single-step transmission matrix retrieval for fast imaging through multi-mode fibers