Short-term stability of Cs microcell-stabilized lasers using dual-frequency sub-Doppler spectroscopy

A. Gusching, M. Petersen, N. Passilly, D. Brazhnikov, M. Abdel Hafiz, R. Boudot

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

Аннотация

The combination of atomic spectroscopy, integrated photonics, and microelectromechanical systems leads the way to the demonstration of microcell-based optical atomic clocks. Here, we report the short-term stability budget of table-top Cs microcell-stabilized lasers based on dual-frequency sub-Doppler spectroscopy (DFSDS). The dependence of the sub-Doppler resonance properties on key experimental parameters is studied. The detection noise budget and absolute phase noise measurements are in good agreement with the measured short-term frequency stability of the laser beatnote, at the level of 1.1 × 10−12τ1/2 until 100 s, currently limited by the intermodulation effect from a distributed-feedback laser setup. The fractional frequency stability of the laser beatnote at 1 s is about 100 times greater than that of commercial microwave chip-scale atomic clocks and validates interest in the DFSDS approach for the development of high-performance microcell-based optical standards.

Язык оригиналаанглийский
Страницы (с-по)3254-3260
Число страниц7
ЖурналJournal of the Optical Society of America B: Optical Physics
Том38
Номер выпуска11
DOI
СостояниеОпубликовано - нояб. 2021

Предметные области OECD FOS+WOS

  • 1.03 ФИЗИЧЕСКИЕ НАУКИ И АСТРОНОМИЯ

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