Fast Generation and Detection of Spatial Modes of Light using an Acousto-Optic Modulator

• URL: http://arxiv.org/abs/2007.16115v1
• Date: Fri, 31 Jul 2020 14:58:30 GMT
• Title: Fast Generation and Detection of Spatial Modes of Light using an Acousto-Optic Modulator
• Authors: Boris Braverman, Alexander Skerjanc, Nicholas Sullivan, Robert W. Boyd
• Abstract summary: spatial modes of light provide a high-dimensional space that can be used to encode both classical and quantum information. Current approaches for dynamically generating and measuring these modes are slow, due to the need to reconfigure a high-resolution phase mask. We experimentally realize this approach, using a double-pass AOM to generate one of five orbital angular momentum states. We are able to reconstruct arbitrary states in under 1 ms with an average fidelity of 96.9%.
• Score: 62.997667081978825
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Spatial modes of light provide a high-dimensional space that can be used to encode both classical and quantum information. Current approaches for dynamically generating and measuring these modes are slow, due to the need to reconfigure a high-resolution phase mask such as a spatial light modulator or digital micromirror device. The process of updating the spatial mode of light can be greatly accelerated by multiplexing a set of static phase masks with a fast, image-preserving optical switch, such as an acousto-optic modulator (AOM). We experimentally realize this approach, using a double-pass AOM to generate one of five orbital angular momentum states with a switching rate of up to 500 kHz. We then apply this system to perform fast quantum state tomography of spatial modes of light in a 2-dimensional Hilbert space, by projecting the unknown state onto six spatial modes comprising three mutually unbiased bases. We are able to reconstruct arbitrary states in under 1 ms with an average fidelity of 96.9%.

Related papers

• Ultrafast all-optical second harmonic wavefront shaping [0.0]
  We experimentally realize a hybrid meta-optical system that enables complex control of the wavefront of light with pulse-duration limited dynamics. Our results pave the way to robust encoding of information for free space optical links, while reaching response times compatible with real-world telecom applications.
  arXiv  Detail & Related papers  (2023-11-09T07:54:43Z)
• Shaping Single Photons through Multimode Optical Fibers using Mechanical Perturbations [55.41644538483948]
  We show an all-fiber approach for controlling the shape of single photons and the spatial correlations between entangled photon pairs. We optimize these perturbations to localize the spatial distribution of a single photon or the spatial correlations of photon pairs in a single spot.
  arXiv  Detail & Related papers  (2023-06-04T07:33:39Z)
• High-dimensional quantum correlation measurements with an adaptively gated hybrid single-photon camera [58.720142291102135]
  We propose an adaptively-gated hybrid intensified camera (HIC) that combines a high spatial resolution sensor and a high temporal resolution detector. With a spatial resolution of nearly 9 megapixels and nanosecond temporal resolution, this system allows for the realization of previously infeasible quantum optics experiments.
  arXiv  Detail & Related papers  (2023-05-25T16:59:27Z)
• Multi-scale architecture for fast optical addressing and control of large scale qubit arrays [0.0]
  We present a technique for rapid site-selective control of the quantum state of particles in a large array using a combination of a fast deflector and a relatively slow spatial light modulator. We calculate qubit addressing rates that are tens to hundreds of times faster than using an SLM alone.
  arXiv  Detail & Related papers  (2022-12-23T16:05:24Z)
• Super-resolution atomic microscopy using orbit angular momentum laser with temporal modulation [6.518672953447181]
  We propose a dark-state-based trapping strategy to break the optical diffraction limit for microscopy. We utilize a spatially dependent coupling field and a probe laser field with temporal and spatial modulation to interact with three-level atoms.
  arXiv  Detail & Related papers  (2022-09-24T03:55:56Z)
• Optical mode conversion via spatiotemporally modulated atomic susceptibility [0.0]
  Space-divisioning has gained attention as a means to substantially increase the rate of information transfer. We demonstrate devices capable of manipulating photonic degrees of freedom with high efficiency.
  arXiv  Detail & Related papers  (2022-08-09T00:49:04Z)
• A full degree-of-freedom photonic crystal spatial light modulator [39.67745538418647]
  Control of optical fields requires complete control of all degrees-of-freedom within a region of space and time. Work opens a new regime of programmability at the fundamental limits of multimode optical control.
  arXiv  Detail & Related papers  (2022-04-21T17:36:34Z)
• Ultra-long photonic quantum walks via spin-orbit metasurfaces [52.77024349608834]
  We report ultra-long photonic quantum walks across several hundred optical modes, obtained by propagating a light beam through very few closely-stacked liquid-crystal metasurfaces. With this setup we engineer quantum walks up to 320 discrete steps, far beyond state-of-the-art experiments.
  arXiv  Detail & Related papers  (2022-03-28T19:37:08Z)
• Superposition of two-mode squeezed states for quantum information processing and quantum sensing [55.41644538483948]
  We investigate superpositions of two-mode squeezed states (TMSSs) TMSSs have potential applications to quantum information processing and quantum sensing.
  arXiv  Detail & Related papers  (2021-02-01T18:09:01Z)
• Hyperentanglement in structured quantum light [50.591267188664666]
  Entanglement in high-dimensional quantum systems, where one or more degrees of freedom of light are involved, offers increased information capacities and enables new quantum protocols. Here, we demonstrate a functional source of high-dimensional, noise-resilient hyperentangled states encoded in time-frequency and vector-vortex structured modes. We generate highly entangled photon pairs at telecom wavelength that we characterise via two-photon interference and quantum state tomography, achieving near-unity visibilities and fidelities.
  arXiv  Detail & Related papers  (2020-06-02T18:00:04Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.