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Cited by 426

The DOI matches its Crossref record; 45 of the 45 references it cites were found in a registry or an index.

Sub-hertz fundamental linewidth photonic integrated Brillouin laser

Open access
Gundavarapu, Sarat, Brodnik, Grant M., Puckett, Matthew, Huffman, Taran, Bose, Debapam, Behunin, Ryan, Wu, Jianfeng, Qiu, Tiequn, Pinho, Cátia, Chauhan, Nitesh, Nohava, Jim, Rakich, Peter T., Nelson, Karl D., Salit, Mary, Blumenthal, Daniel J.·2019·Nature Photonics

Abstract

Spectrally pure lasers, the heart of precision high-end scientific and commercial applications, are poised to make the leap from the laboratory to integrated circuits. Translating this performance to integrated photonics will dramatically reduce cost and footprint for applications such as ultrahigh capacity fibre and data centre networks, atomic clocks and sensing. Despite the numerous applications, integrated lasers currently suffer from large linewidth. Brillouin lasers, with their unique properties, offer an intriguing solution, yet bringing their performance to integrated platforms has remained elusive. Here, we demonstrate a sub-hertz (~0.7 Hz) fundamental linewidth Brillouin laser in an integrated Si3N4 waveguide platform that translates advantages of non-integrated designs to the chip scale. This silicon-foundry-compatible design supports low loss from 405 to 2,350 nm and can be integrated with other components. Single- and multiple-frequency output operation provides a versatile low phase-noise solution. We highlight this by demonstrating an optical gyroscope and a low-phase-noise photonic oscillator.Brillouin lasing with 0.7 Hz fundamental linewidth is observed by optically exciting a monolithic bus–ring Si3N4 waveguide resonator. The Brillouin laser is applied to an optical gyroscope and a low phase-noise photonic microwave oscillator.

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Metadata

Authors
Gundavarapu, S., Brodnik, G. M., Puckett, M., Huffman, T., Bose, D., Behunin, R., Wu, J., Qiu, T., Pinho, C., Chauhan, N., Nohava, J., Rakich, P. T., Nelson, K. D., Salit, M., & Blumenthal, D. J.
Venue
Nature Photonics
Published
2018-12-10
Volume
13
Issue
1
Pages
60-67
ISSN
  • 1749-4885 (ISSN-L)
  • 1749-4893
OpenAlex
W2788994739
Cited by
426
References
45
FWCI
11.95
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Sub-hertz fundamental linewidth photonic integrated Brillouin laser. https://app.cochat.ai/papers/10.1038/s41566-018-0313-2
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Gundavarapu, S., Brodnik, G. M., Puckett, M., Huffman, T., Bose, D., Behunin, R., Wu, J., Qiu, T., Pinho, C., Chauhan, N., Nohava, J., Rakich, P. T., Nelson, K. D., Salit, M., & Blumenthal, D. J. (2019). Sub-hertz fundamental linewidth photonic integrated Brillouin laser. Nature Photonics. https://doi.org/10.1038/s41566-018-0313-2

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.