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Electro-optic frequency combs for rapid interrogation in cavity optomechanics.

ABSTRACT: Electro-optic frequency combs were employed to rapidly interrogate an optomechanical sensor, demonstrating spectral resolution substantially exceeding that possible with a mode-locked frequency comb. Frequency combs were generated using an integrated-circuit-based direct digital synthesizer and utilized in a self-heterodyne configuration. Unlike approaches based upon laser locking, the present approach allows rapid, parallel measurements of full optical cavity modes, large dynamic range of sensor displacement, and acquisition across a wide frequency range between DC and 500 kHz. In addition to being well suited to measurements of acceleration, this optical frequency comb-based approach can be utilized for interrogation in a wide range of cavity optomechanical sensors.

SUBMITTER: Long DA

PROVIDER: S-EPMC8278764 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature

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Electro-optic frequency combs for rapid interrogation in cavity optomechanics.

Long D A DA Reschovsky B J BJ Zhou F F Bao Y Y LeBrun T W TW Gorman J J JJ

Optics letters 20210201 3

Electro-optic frequency combs were employed to rapidly interrogate an optomechanical sensor, demonstrating spectral resolution substantially exceeding that possible with a mode-locked frequency comb. Frequency combs were generated using an integrated-circuit-based direct digital synthesizer and utilized in a self-heterodyne configuration. Unlike approaches based upon laser locking, the present approach allows rapid, parallel measurements of full optical cavity modes, large dynamic range of senso ...[more]

PMID: 33528430

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