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This research demonstrates a breakthrough in chip-scale optical frequency combs by using an inverted architecture with octave-separated pumps to achieve self-aligned, stable generation on a single photonic chip. The innovation directly enables deployable optical atomic clocks and precision quantum sensing without the complex external stabilization controls that previously limited microcomb metrology. By solving long-standing stability issues in this hardware foundation, the work advances practical applications for GPS-denied quantum navigation and absolute frequency measurement.

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University of Auckland, NIST, and UMD Demonstrate Octave-Spanning Chip-Scale Microcomb in Nature

Quantum Computing ReportOctober 9, 20263 min read

Researchers from the University of Auckland, NIST, UMD, and UC Santa Barbara have developed a chip-integrated optical frequency comb that addresses long-standing stability and control issues in microcomb metrology. They achieved this by inverting traditional frequency comb architectures, using two pump lasers an octave apart to generate a self-aligned, octave-spanning microcomb on a single chip. This innovation has significant implications for deployable optical atomic clocks, GPS-denied quantum navigation, and precision quantum sensing, with a provisional patent filed for commercialization. The post University of Auckland, NIST, and UMD Demonstrate Octave-Spanning Chip-Scale Microcomb in Nature appeared first on Quantum Computing Report.

Concept of self-aligned PDCS microcomb generation with octave-separated lasers. In a study published in Nature, an international research collaboration led by the University of Auckland, the National Institute of Standards and Technology (NIST), the University of Maryland (UMD), and UC Santa…

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