Low-Noise Amplification and Frequency Conversion with a Multiport Microwave Optomechanical Device

Caspar Ockeloen-Korppi, Erno Damskägg, Juha-Matti Pirkkalainen, T. T. Heikkilä, Francesco Massel, Mika Sillanpää

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56 Citations (Scopus)
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High-gain amplifiers of electromagnetic signals operating near the quantum limit are crucial for quantum information systems and ultrasensitive quantum measurements. However, the existing techniques have a limited gain-bandwidth product and only operate with weak input signals. Here, we demonstrate a two-port optomechanical scheme for amplification and routing of microwave signals, a system that simultaneously performs high-gain amplification and frequency conversion in the quantum regime. Our amplifier, implemented in a two-cavity microwave optomechanical device, shows 41 dB of gain and has a high dynamic range, handling input signals up to 1013 photons per second, 3 orders of magnitude more than corresponding Josephson parametric amplifiers. We show that although the active medium, the mechanical resonator, is at a high temperature far from the quantum limit, only 4.6 quanta of noise is added to the input signal. Our method can be readily applied to a wide variety of optomechanical systems, including hybrid optical-microwave systems, creating a universal hub for signals at the quantum level.
Original languageEnglish
Article number041024
Number of pages7
JournalPhysical Review X
Publication statusPublished - 28 Oct 2016
MoE publication typeA1 Journal article-refereed


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