Related papers: Frequency drift corrected ultra-stable laser through phase-coherent fiber producing a quantum channel

Frequency drift corrected ultra-stable laser through phase-coherent fiber producing a quantum channel

URL: http://arxiv.org/abs/2509.08419v1
Date: Wed, 10 Sep 2025 09:06:25 GMT
Title: Frequency drift corrected ultra-stable laser through phase-coherent fiber producing a quantum channel
Authors: Stanley Johnson, Sandeep Mishra, Anirban Pathak, Subhadeep De,
Abstract summary: Phase coherent fibers (PCF) are essential to distribute nearly monochromatic photons, ultra-stable in their frequency and phases.<n>We report the development of a novel system that produces PCF links, also actively corrects the unavoidable slow frequency drift of the source laser.
Score: 2.5076621152335408
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: Phase coherent fibers (PCF) are essential to distribute nearly monochromatic photons, ultra-stable in their frequency and phases, which have demanding requirements for state-of-the-art networked experiments, quantum as well as very high-speed communications. We report the development of a novel system that produces PCF links, also actively corrects the unavoidable slow frequency drift of the source laser. The PCF follows white phase noise limited $\sigma_o \times \tau^{-1}$ stability behavior having $\sigma_o$ values $1.9(2) \times 10^{-16}$ and $2.6(1) \times 10^{-16}$ for a 3.3 km field-deployed and 71 km spool fibers, respectively, with up to 47.5 dB suppression of the phase noise compared to a normal fiber. Additionally, the system is featured to correct the source laser's 33.8 mHz/s frequency drift to as low as $\simeq 0.05$ mHz/s. Therefore, this all-in-one solution producing a quantum link can potentially enhance the effectiveness of the twin field quantum key distribution (TF-QKD) by nearly a 73-fold reduction of the QBER that arises from using unstabilized fiber links, as well as relaxes the laser frequency drift correction constraints by severalfold.

Related papers

High-Performance Quantum Frequency Conversion from Ultraviolet to Telecom Band [29.56767830548318]
Quantum frequency conversion (QFC) is essential for bridging the spectral gap between stationary qubits and low-loss optical communication channels.<n>We demonstrate a short-wavelength-matched QFC with the first-order quasi-phase matching period of 3.07 um on thin-film lithium niobate.<n>We achieve a record-high external efficiency of 28.8% and an ultra-low noise of 35 counts per second.
arXiv Detail & Related papers (2026-03-02T11:15:33Z)
Deterministic single-photon source with on-chip 5.6 GHz acoustic clock [59.38889796913807]
We demonstrate triggering of a quantum dot (QD) single photon emission using dynamic Purcell effect induced at a frequency of several GHz by acoustic strain.<n>InAs QDs are integrated in a hybrid photon-phonon patterned microcavity.
arXiv Detail & Related papers (2025-10-26T20:43:00Z)
Sub-femtosecond stabilization of multicore fiber for high-fidelity quantum networking at 100% duty cycle [2.121469897194146]
MCF cores have a high degree of noise correlation which can be harnessed for a variety of applications.<n>We achieve 100 attosecond integrated jitter on one core by using phase information derived from another core.<n>Our results with MCF are a promising approach to ultra-stable quantum networks with 100% duty cycle on the quantum channel.
arXiv Detail & Related papers (2025-09-22T16:30:43Z)
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.<n>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)
Polarization-encoded quantum key distribution with a room-temperature telecom single-photon emitter [47.54990103162742]
Single photon sources (SPSs) are directly applicable in quantum key distribution (QKD) We report an observation of polarization-encoded QKD using a room-temperature telecom SPS based on a GaN defect.
arXiv Detail & Related papers (2024-09-25T16:17:36Z)
Quantum nonlocal modulation cancellation with distributed clocks [0.33827079164159196]
We demonstrate nonlocal modulation of entangled photons with truly distributed RF clocks. We multiplex the RFoF clock with one photon from a frequency-bin-entangled pair and distributing the coexisting quantum-classical signals over fiber.
arXiv Detail & Related papers (2024-07-24T14:53:58Z)
Polarization Purity and Dispersion Characteristics of Nested Antiresonant Nodeless Hollow-Core Optical Fiber at Near- and Short-wave-IR Wavelengths for Quantum Communications [3.9479376216271516]
Antiresonant nodeless fibers (NANF) have been shown to possess unparalleled polarization purity with minimal birefringence in the telecom wavelength range.<n>Our results show a polarization extinction ratio between -30 dB and -70 dB across the 1520 to 1620 nm range in CW operation, peaking at -60 dB at the 2-$mu$m design wavelength.
arXiv Detail & Related papers (2024-05-05T16:32:28Z)
Towards Fully Passive Time-Bin Quantum Key Distribution over Moving Free-Space Channels [36.136619420474766]
Quantum information in photonic time-bin states is typically considered impractical for moving free-space quantum communication.<n>We demonstrate a novel approach using reference frame independent time-bin quantum key distribution.<n>The scheme can be readily applied over various spatially multi-mode and fluctuating channels involving rapidly moving platforms.
arXiv Detail & Related papers (2023-02-10T03:53:21Z)
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)
Picosecond Pulsed Squeezing in Thin-Film Lithium Niobate Strip-Loaded Waveguides at Telecommunication Wavelengths [52.77024349608834]
We show quadrature squeezing of picosecond pulses in a thin-film lithium niobate strip-loaded waveguide. This work highlights the potential of the strip-loaded waveguide platform for broadband squeezing applications.
arXiv Detail & Related papers (2022-04-12T10:42:19Z)
Telecom-band Hyperentangled Photon Pairs from a Fiber-based Source [49.06242674127539]
We experimentally demonstrate the generation of telecom-band biphotons hyperentangled in both the polarization and frequency DoFs. The states produced by our hyperentanglement source can enable protocols such as dense coding and high-dimensional quantum key distribution.
arXiv Detail & Related papers (2021-12-06T21:37:43Z)
Stable Polarization Entanglement based Quantum Key Distribution over Metropolitan Fibre Network [55.41644538483948]
We demonstrate a quantum key distribution implementation over deployed dark telecom fibers with polarisation-entangled photons generated at the O-band. One of the photons in the pairs are propagated through 10km of deployed fiber while the others are detected locally. This ensures continuous and stable QKD operation with an average QBER of 6.4% and a final key rate of 109 bits/s.
arXiv Detail & Related papers (2020-07-04T02:36:57Z)
Frequency-Domain Quantum Interference with Correlated Photons from an Integrated Microresonator [96.25398432840109]
We report frequency-domain Hong-Ou-Mandel interference with spectrally distinct photons generated from a chip-based microresonator. Our work establishes four-wave mixing as a tool for selective high-fidelity two-photon operations in the frequency domain.
arXiv Detail & Related papers (2020-03-14T01:48:39Z)

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