Enhancement of three-mode optomechanical interaction by feedback-controlled light

Nenad Kralj; Massimiliano Rossi; Stefano Zippilli; Riccardo Natali; Antonio Borrielli; Gregory Pandraud; Enrico Serra; Giovanni Di Giuseppe; David Vitali

doi:10.1088/2058-9565/aa7d7e

Enhancement of three-mode optomechanical interaction by feedback-controlled light

Nenad Kralj, Massimiliano Rossi, Stefano Zippilli, Riccardo Natali, Antonio Borrielli, Gregory Pandraud, Enrico Serra, Giovanni Di Giuseppe, David Vitali^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

19 Citations (Scopus)

Abstract

We realise a feedback-controlled optical Fabry-Pérot cavity in which the transmitted cavity output is used to modulate the input amplitude fluctuations. The resulting phase-dependent fluctuations of the in-loop optical field, which may be either sub-shot or super-shot noise, can be engineered to favourably affect the optomechanical interaction with a nanomechanical membrane placed within the cavity. Here we show that in the super-shot-noise regime ('anti-squashed light') the in-loop field has a strongly reduced effective cavity linewidth, corresponding to an increased optomechanical cooperativity. In this regime, feedback improves the simultaneous resolved-sideband cooling of two nearly degenerate membrane mechanical modes by one order of magnitude.

Original language	English
Article number	034014
Pages (from-to)	1-12
Number of pages	12
Journal	Quantum Science and Technology
Volume	2
Issue number	3
DOIs	https://doi.org/10.1088/2058-9565/aa7d7e
Publication status	Published - 2017

Keywords

cavity optomechanics
in-loop optical fields
mechanical resonators
optical measurement and feedback

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10.1088/2058-9565/aa7d7e

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title = "Enhancement of three-mode optomechanical interaction by feedback-controlled light",

abstract = "We realise a feedback-controlled optical Fabry-P{\'e}rot cavity in which the transmitted cavity output is used to modulate the input amplitude fluctuations. The resulting phase-dependent fluctuations of the in-loop optical field, which may be either sub-shot or super-shot noise, can be engineered to favourably affect the optomechanical interaction with a nanomechanical membrane placed within the cavity. Here we show that in the super-shot-noise regime ('anti-squashed light') the in-loop field has a strongly reduced effective cavity linewidth, corresponding to an increased optomechanical cooperativity. In this regime, feedback improves the simultaneous resolved-sideband cooling of two nearly degenerate membrane mechanical modes by one order of magnitude.",

keywords = "cavity optomechanics, in-loop optical fields, mechanical resonators, optical measurement and feedback",

author = "Nenad Kralj and Massimiliano Rossi and Stefano Zippilli and Riccardo Natali and Antonio Borrielli and Gregory Pandraud and Enrico Serra and {Di Giuseppe}, Giovanni and David Vitali",

year = "2017",

doi = "10.1088/2058-9565/aa7d7e",

language = "English",

volume = "2",

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journal = "Quantum Science and Technology",

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Enhancement of three-mode optomechanical interaction by feedback-controlled light. / Kralj, Nenad; Rossi, Massimiliano; Zippilli, Stefano; Natali, Riccardo; Borrielli, Antonio; Pandraud, Gregory; Serra, Enrico; Di Giuseppe, Giovanni; Vitali, David.

In: Quantum Science and Technology, Vol. 2, No. 3, 034014, 2017, p. 1-12.

Research output: Contribution to journal › Article › Scientific › peer-review

TY - JOUR

T1 - Enhancement of three-mode optomechanical interaction by feedback-controlled light

AU - Kralj, Nenad

AU - Rossi, Massimiliano

AU - Zippilli, Stefano

AU - Natali, Riccardo

AU - Borrielli, Antonio

AU - Pandraud, Gregory

AU - Serra, Enrico

AU - Di Giuseppe, Giovanni

AU - Vitali, David

PY - 2017

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N2 - We realise a feedback-controlled optical Fabry-Pérot cavity in which the transmitted cavity output is used to modulate the input amplitude fluctuations. The resulting phase-dependent fluctuations of the in-loop optical field, which may be either sub-shot or super-shot noise, can be engineered to favourably affect the optomechanical interaction with a nanomechanical membrane placed within the cavity. Here we show that in the super-shot-noise regime ('anti-squashed light') the in-loop field has a strongly reduced effective cavity linewidth, corresponding to an increased optomechanical cooperativity. In this regime, feedback improves the simultaneous resolved-sideband cooling of two nearly degenerate membrane mechanical modes by one order of magnitude.

AB - We realise a feedback-controlled optical Fabry-Pérot cavity in which the transmitted cavity output is used to modulate the input amplitude fluctuations. The resulting phase-dependent fluctuations of the in-loop optical field, which may be either sub-shot or super-shot noise, can be engineered to favourably affect the optomechanical interaction with a nanomechanical membrane placed within the cavity. Here we show that in the super-shot-noise regime ('anti-squashed light') the in-loop field has a strongly reduced effective cavity linewidth, corresponding to an increased optomechanical cooperativity. In this regime, feedback improves the simultaneous resolved-sideband cooling of two nearly degenerate membrane mechanical modes by one order of magnitude.

KW - cavity optomechanics

KW - in-loop optical fields

KW - mechanical resonators

KW - optical measurement and feedback

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M1 - 034014

ER -

Enhancement of three-mode optomechanical interaction by feedback-controlled light

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