Iterative Adaptive Spectroscopy of Short Signals
Avishek Chowdhury, Anh Tuan Le, Eva M. Weig, Hugo Ribeiro
TL;DR
This paper introduces an iterative adaptive spectroscopy protocol using Ramsey interferometry that accurately estimates unknown frequencies from short signals, reducing experimental overhead and mitigating systematic errors.
Contribution
The paper presents a novel iterative, adaptive frequency sensing method based on Ramsey interferometry, improving precision and efficiency in short signal analysis.
Findings
Achieves high-precision frequency estimation from short signals.
Reduces experimental overhead related to sampling.
Mitigates systematic errors in Fourier-based frequency estimation.
Abstract
We develop an iterative, adaptive frequency sensing protocol based on Ramsey interferometry of a two-level system. Our scheme allows one to estimate unknown frequencies with a high precision from short, finite signals. It avoids several issues related to processing of decaying signals and reduces the experimental overhead related to sampling. High precision is achieved by enhancing the Ramsey sequence to prepare with high fidelity both the sensing and readout state and by using an iterative procedure built to mitigate systematic errors when estimating frequencies from Fourier transforms.
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Taxonomy
TopicsSemiconductor Lasers and Optical Devices · Advanced Fiber Optic Sensors · Advanced Frequency and Time Standards