CUED Publications database

Observation of locked phase dynamics and enhanced frequency stability in synchronized micromechanical oscillators

Agrawal, DK and Woodhouse, J and Seshia, AA (2013) Observation of locked phase dynamics and enhanced frequency stability in synchronized micromechanical oscillators. Physical Review Letters, 111. ISSN 0031-9007

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Abstract

Even though synchronization in autonomous systems has been observed for over three centuries, reports of systematic experimental studies on synchronized oscillators are limited. Here, we report on observations of internal synchronization in coupled silicon micromechanical oscillators associated with a reduction in the relative phase random walk that is modulated by the magnitude of the reactive coupling force between the oscillators. Additionally, for the first time, a significant improvement in the frequency stability of synchronized micromechanical oscillators is reported. The concept presented here is scalable and could be suitably engineered to establish the basis for a new class of highly precise miniaturized clocks and frequency references. © 2013 American Physical Society.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div C > Applied Mechanics
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:45
Last Modified: 08 Dec 2014 02:17
DOI: 10.1103/PhysRevLett.111.084101