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 or sweeping, 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 cavity optomechanical sensors, this optical frequency comb-based approach can be utilized for interrogation in a wide range of physical and chemical sensors.

5 pages, 6 figures

References in corpus (3)

• Strong dispersive coupling of a high finesse cavity to a micromechanical membrane
• Multiplexed sub-Doppler spectroscopy with an optical frequency comb
• Electro-optic dual-comb interferometry over 40-nm bandwidth

Cited by in corpus (8)

• Ultrasound sensing at thermomechanical limits with optomechanical buckled-dome microcavities
• Spatially resolved mass flux measurements with dual comb spectroscopy
• Interleaved Electro-Optic Dual Comb Generation to Expand Bandwidth and Scan Rate for Molecular Spectroscopy and Dynamics Studies near 1.6 μm
• High accuracy, high dynamic range optomechanical accelerometry enabled by dual comb spectroscopy
• Difference-Frequency Chirped-Pulse Dual-comb Generation in the THz Region: Temporal Magnification of the Quantum Dynamics of Water Vapor Lines by >60,000
• Real-Time Electro-Optic Dual Comb Detection of Ultrasound Waves
• Phononic Combs in Lithium Niobate Acoustic Resonators
• Intrinsically accurate sensing with an optomechanical accelerometer