Integrated optical frequency division for stable microwave and mmWave generation

The generation of ultra-low noise microwave and mmWave in miniaturized, chip-based platforms can transform communication, radar, and sensing systems. Optical frequency division that leverages optical references and optical frequency combs has emerged as a powerful technique to generate microwaves wi...

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Bibliographic Details
Main Authors Sun, Shuman, Wang, Beichen, Liu, Kaikai, Harrington, Mark, Tabatabaei, Fatemehsadat, Liu, Ruxuan, Wang, Jiawei, Hanifi, Samin, Morgan, Jesse S, Jahanbozorgi, Mandana, Yang, Zijiao, Bowers, Steven, Morton, Paul, Nelson, Karl, Beling, Andreas, Blumenthal, Daniel, Yi, Xu
Format Journal Article
LanguageEnglish
Published 22.05.2023
Subjects
Physics - Applied Physics
Physics - Optics
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Summary:The generation of ultra-low noise microwave and mmWave in miniaturized, chip-based platforms can transform communication, radar, and sensing systems. Optical frequency division that leverages optical references and optical frequency combs has emerged as a powerful technique to generate microwaves with superior spectral purity than any other approaches. We demonstrate a miniaturized optical frequency division system that can potentially transfer the approach to a CMOS-compatible integrated photonic platform. Phase stability is provided by a large-mode-volume, planar-waveguide-based optical reference coil cavity and is divided down from optical to mmWave frequency by using soliton microcombs generated in a waveguide-coupled microresonator. Besides achieving record-low phase noise for integrated photonic microwave/mmWave oscillators, these devices can be heterogeneously integrated with semiconductor lasers, amplifiers, and photodiodes, holding the potential of large-volume, low-cost manufacturing for fundamental and mass-market applications.
DOI:10.48550/arxiv.2305.13575