Related papers: Fast, low-loss all-optical phase modulation in warm rubidium vapour

Fast, low-loss all-optical phase modulation in warm rubidium vapour

URL: http://arxiv.org/abs/2309.04313v2
Date: Mon, 26 Aug 2024 01:12:55 GMT
Title: Fast, low-loss all-optical phase modulation in warm rubidium vapour
Authors: William Davis, Paul Burdekin, Tabijah Wasawo, Sarah E Thomas, Peter J Mosley, Joshua Nunn, Cameron McGarry,
Abstract summary: Phase modulation is one method of achieving this switching, but existing optical phase modulators either achieve high bandwidth or low loss, but not both. We demonstrate fast ($100,mathrmMHz$ bandwidth), low-loss ($83pm2%$ transmission) phase shifting in a signal field, induced by a control field, and mediated by the two-photon $5S_1/2 rightarrow 5P_3/2 rightarrow 5D_5/2$ transition in $87textRb$ vapour.
Score: 0.4083411699102074
License: http://creativecommons.org/licenses/by/4.0/
Abstract: Low-loss high-speed switches are an integral component of future photonic quantum technologies, with applications in state generation, multiplexing, and the implementation of quantum gates. Phase modulation is one method of achieving this switching, but existing optical phase modulators either achieve high bandwidth or low loss, but not both. We demonstrate fast ($100\,\mathrm{MHz}$ bandwidth), low-loss ($83\pm2\%$ transmission) phase shifting ($\Delta\phi = (0.90\pm0.05)\pi$) in a signal field, induced by a control field, and mediated by the two-photon $5S_{1/2} \rightarrow{} 5P_{3/2} \rightarrow{} 5D_{5/2}$ transition in $^{87}\text{Rb}$ vapour. We discuss routes to enhance both performance and scalability for application to a range of quantum and classical technologies.

Related papers

Quantum Frequency Conversion of $μs$-long Photons from the Visible to the Telecom-C-Band [0.0]
Quantum Frequency Conversion (QFC) is a technique to interface atomic systems with the telecom band in order to facilitate propagation over longer distances in fiber. We demonstrate the difference-frequency conversion from 606 nm to 1552 nm of microsecond-long weak coherent pulses at the single photon level.
arXiv Detail & Related papers (2024-12-19T18:57:52Z)
Quantum-enabled continuous microwave-to-optics frequency conversion [6.646547697436899]
A quantum interface between microwave and optical photons is essential for entangling remote superconducting quantum processors. We present a platform that meets these criteria, utilizing a combination of electrostatic and optomechanical interactions in devices made entirely from crystalline silicon.
arXiv Detail & Related papers (2024-06-04T18:34:01Z)
A Thin Film Lithium Niobate Near-Infrared Platform for Multiplexing Quantum Nodes [0.0]
Quantum networks will require quantum nodes consisting of many memory qubits. This in turn will require strategies to multiplex memories and overcome the inhomogeneous distribution of their transition frequencies. In this work, we realize a VNIR thin-film lithium niobate (TFLN) integrated photonics platform with the key components to meet these requirements.
arXiv Detail & Related papers (2024-05-07T00:13:46Z)
All-optical modulation with single-photons using electron avalanche [69.65384453064829]
We demonstrate all-optical modulation using a beam with single-photon intensity. Our approach opens up the possibility of terahertz-speed optical switching at the single-photon level.
arXiv Detail & Related papers (2023-12-18T20:14:15Z)
A unipolar quantum dot diode structure for advanced quantum light sources [0.0]
diode structure embedding semiconductor quantum dots. Blinking-free single-photon emission and high two-photon indistinguishability is observed.
arXiv Detail & Related papers (2023-01-09T17:47:10Z)
Integrated Quantum Optical Phase Sensor [48.7576911714538]
We present a photonic integrated circuit fabricated in thin-film lithium niobate. We use the second-order nonlinearity to produce a squeezed state at the same frequency as the pump light and realize circuit control and sensing with electro-optics. We anticipate that on-chip photonic systems like this, which operate with low power and integrate all of the needed functionality on a single die, will open new opportunities for quantum optical sensing.
arXiv Detail & Related papers (2022-12-19T18:46:33Z)
Quantum-limited millimeter wave to optical transduction [50.663540427505616]
Long distance transmission of quantum information is a central ingredient of distributed quantum information processors. Current approaches to transduction employ solid state links between electrical and optical domains. We demonstrate quantum-limited transduction of millimeter-wave (mmwave) photons into optical photons using cold $85$Rb atoms as the transducer.
arXiv Detail & Related papers (2022-07-20T18:04:26Z)
Dispersive optical systems for scalable Raman driving of hyperfine qubits [45.82374977939355]
We introduce a new method for generating amplitude modulation by phase modulating a laser. This approach is passively stable, offers high efficiency, and is compatible with high-power laser sources. We benchmark this new approach by globally driving an array of $sim 300$ neutral $87$Rb atomic qubits trapped in optical tweezers.
arXiv Detail & Related papers (2021-10-27T18:00:00Z)
Fast Generation and Detection of Spatial Modes of Light using an Acousto-Optic Modulator [62.997667081978825]
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%.
arXiv Detail & Related papers (2020-07-31T14:58:30Z)
Minimum optical depth multi-port interferometers for approximating any unitary transformation and any pure state [52.77024349608834]
We show that any pure state, in any dimension $d$, can be prepared with infidelity $le 10-15$ using multi-port interferometers. The schemes in [Phys. Rev. Lett. textbf73, 58 (1994) and Optica text3, 1460, 1460, only achieves an infidelity in the order of $10-7$ for block-diagonal unitary transformations.
arXiv Detail & Related papers (2020-02-04T15:40:49Z)

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