A 75-mL intrinsically stable atom-filtered laser enabling deployable quantum devices

Abstract

Numerous quantum devices require lasers strictly locked to atomic transitions. Atom-filtered lasers (AFLs) are considered a leading candidate for quantum device laser sources due to their ability to self-align to atomic transitions. However, the sub-GHz sharp transmission spectra of conventional atomic filters impose constraints on both laser miniaturization and output stability. Herein, we demonstrate a micro Faraday anomalous dispersion optical filter (μFADOF) operating within the extreme hyperfine Paschen-Back regime, generating a 7.5 GHz flat-top transmission window. By integrating this filter, the miniaturization bottleneck of the AFLs is overcome, achieving a 30-fold volume reduction to a compact package volume of 75 mL. Simultaneously, investigations into the optical self-feedback characteristics of the μFADOF reveal a stable operating regime, where the optical self-feedback of the atomic filter acts as a stabilizing mechanism, enabling the laser to achieve a power instability of 9 x 10^-6 at 1 s and 3.2 x 10^-5 at 8400 s. The optical frequency standard based on this 75-mL AFL achieves a further improvement in long-term frequency stability to 3 x 10^-13 at 10000 s and maintains turn-key operation under environmental shocks, highlighting the critical role of this laser in the development of deployable quantum devices.

Energy-filtered quantum states and the emergence of non-local correlations
Gianluca Morettini, Luca Capizzi, Maurizio Fagotti +1
Physical Review Letters1 Oct 2026Peer-reviewedHAL deposit licenceFull text5 citedCondensed matter Quantum physics & quantum informationHAL
Thermally melted quadrupolar order and intrinsically quantum phases in 5d¹ double perovskites
Rong Cong, Ginevra Corsale, Ilija K. Nikolov +3
arXiv21 Sep 2026PreprintCC BY-NC-SA 4.0Full textCondensed matterarXiv
Enabling chemically accurate quantum phase estimation in the early fault-tolerant regime via unitary weight concentration
Shota Kanasugi, Riki Toshio, Kazunori Maruyama +1
PRX Quantum28 Oct 2026Peer-reviewedPublisher termsQuantum physics & quantum informationCrossref
Energy-filtered readout preserves gap-enhanced sensing in interacting quantum dots
Shirwan Abdullah
arXiv2 Oct 2026PreprintCC BY 4.0Full textCondensed matter Quantum physics & quantum informationarXiv
Quantum Simulation of Nuclear Shell Model Using GCM-Based Methods on NISQ Devices
Durgesh Pandey, Ashutosh Singh, Ankit Kumar Das +1
HAL1 Sep 2026PreprintLicence not statedNuclear physics Quantum physics & quantum informationHAL

Cite

BibTeX RIS

BibTeX

@misc{liu202675ml,
  title = {{A 75-mL intrinsically stable atom-filtered laser enabling deployable quantum devices}},
  author = {Zijie Liu and Zheng Xiao and Zhiyang Wang and Xiaolei Guan and Xiaomin Qin and Suyang Wei and Hongtian Song and Baoshuai Wang and Jia Zhang and Xiaopeng Xie and Tiantian Shi and Anhong Dang and Jingbiao Chen},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.27447},
  eprint = {2609.27447},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.27447},
}

RIS

TY  - UNPB
TI  - A 75-mL intrinsically stable atom-filtered laser enabling deployable quantum devices
AU  - Zijie Liu
AU  - Zheng Xiao
AU  - Zhiyang Wang
AU  - Xiaolei Guan
AU  - Xiaomin Qin
AU  - Suyang Wei
AU  - Hongtian Song
AU  - Baoshuai Wang
AU  - Jia Zhang
AU  - Xiaopeng Xie
AU  - Tiantian Shi
AU  - Anhong Dang
AU  - Jingbiao Chen
PY  - 2026
DA  - 2026/09/23
PB  - arXiv
DO  - 10.48550/arxiv.2609.27447
UR  - https://arxiv.org/abs/2609.27447
AB  - Numerous quantum devices require lasers strictly locked to atomic transitions. Atom-filtered lasers (AFLs) are considered a leading candidate for quantum device laser sources due to their ability to self-align to atomic transitions. However, the sub-GHz sharp transmission spectra of conventional atomic filters impose constraints on both laser miniaturization and output stability. Herein, we demonstrate a micro Faraday anomalous dispersion optical filter (μFADOF) operating within the extreme hyperfine Paschen-Back regime, generating a 7.5 GHz flat-top transmission window. By integrating this filter, the miniaturization bottleneck of the AFLs is overcome, achieving a 30-fold volume reduction to a compact package volume of 75 mL. Simultaneously, investigations into the optical self-feedback characteristics of the μFADOF reveal a stable operating regime, where the optical self-feedback of the atomic filter acts as a stabilizing mechanism, enabling the laser to achieve a power instability of 9 x 10^-6 at 1 s and 3.2 x 10^-5 at 8400 s. The optical frequency standard based on this 75-mL AFL achieves a further improvement in long-term frequency stability to 3 x 10^-13 at 10000 s and maintains turn-key operation under environmental shocks, highlighting the critical role of this laser in the development of deployable quantum devices.
ER  -

Abstract

Related

Cite