Researching | Microcomb technology: enabling scalable integrated photonic systems

Photonics Insights, Volume. 4, Issue 3, C05(2025)

Microcomb technology: enabling scalable integrated photonic systems

Changhao Han and John E. Bowers^*

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Department of Electrical and Computer Engineering, University of California, Santa Barbara, USA

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References(11)

[1] S. B. Papp et al. Microresonator frequency comb optical clock. Optica, 1, 10(2014). https://doi.org/10.1364/OPTICA.1.000010

[2] D. T. Spencer et al. An optical-frequency synthesizer using integrated photonics. Nature, 557, 81(2018). https://doi.org/10.1038/s41586-018-0065-7

[3] J. Riemensberger et al. Massively parallel coherent laser ranging using a soliton microcomb. Nature, 581, 164(2020). https://doi.org/10.1038/s41586-020-2239-3

[4] H. Shu et al. Microcomb-driven silicon photonic systems. Nature, 605, 457(2022). https://doi.org/10.1038/s41586-022-04579-3

[5] A. Rizzo et al. Massively scalable Kerr comb-driven silicon photonic link. Nat. Photonics, 17, 781(2023). https://doi.org/10.1038/s41566-023-01244-7

[6] H. Shu et al. Microcomb technology: from principles to applications. Photonics Insights, 3, R09(2024). https://doi.org/10.3788/PI.2024.R09

[7] X. Jia et al. Continuous-variable multipartite entanglement in an integrated microcomb. Nature, 639, 329(2025). https://doi.org/10.1038/s41586-025-08602-1

[8] B. Bai et al. Microcomb-based integrated photonic processing unit. Nat. Commun., 14, 66(2023). https://doi.org/10.1038/s41467-022-35506-9

[9] Y. Liu et al. Parallel wavelength-division-multiplexed signal transmission and dispersion compensation enabled by soliton microcombs and microrings. Nat. Commun., 15, 3645(2024). https://doi.org/10.1038/s41467-024-47904-2

[10] Q.-F. Yang et al. Efficient microresonator frequency combs. eLight, 4, 18(2024). https://doi.org/10.1186/s43593-024-00075-5

[11] C. Xiang et al. Laser soliton microcombs heterogeneously integrated on silicon. Science, 373, 99(2021). https://doi.org/10.1126/science.abh2076

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Changhao Han, John E. Bowers, "Microcomb technology: enabling scalable integrated photonic systems," Photon. Insights 4, C05 (2025)

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Paper Information

Category: Commentaries

Received: Jun. 27, 2025

Accepted: Jun. 30, 2025

Published Online: Jul. 18, 2025

The Author Email: John E. Bowers (bowers@ece.ucsb.edu)

DOI:10.3788/PI.2025.C05

CSTR:32396.14.PI.2025.C05

Topics

laser devices and laser physics

Lasers and Laser Optics

laser manufacturing

Instrumentation, Measurement and Metrology