NQontrol: An open-source platform for digital control-loops in quantum-optical experiments

Christian Darsow-Fromm; Luis Dekant; Stephan Grebien; Maik Schroeder; Roman Schnabel; Sebastian Steinlechner

doi:10.1063/1.5135873

NQontrol: An open-source platform for digital control-loops in quantum-optical experiments

Christian Darsow-Fromm^*
, Luis Dekant
, Stephan Grebien
, Maik Schroeder
, Roman Schnabel
, Sebastian Steinlechner

^*Corresponding author for this work

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

69 Downloads (Pure)

Abstract

In this paper, we present NQontrol, a digital feedback-control solution based on the ADwin platform that delivers eight simultaneous feedback loops running with 200 kHz sampling frequency and offers five second-order filtering sections per channel for flexible shaping of the feedback loop. With this system, we demonstrate a Pound-Drever-Hall lock of an optical resonator and compare its performance to an analog reference implementation. A comprehensive support package written in Python, together with a web-based graphical user interface, makes the system quick to setup and easy to use, while maintaining the full flexibility of open-source platforms.

Original language	English
Article number	035114
Number of pages	7
Journal	Review of Scientific Instruments
Volume	91
Issue number	3
DOIs	https://doi.org/10.1063/1.5135873
Publication status	Published - 1 Mar 2020

Access to Document

10.1063/1.5135873

Full TextFinal published version, 1.79 MBLicence: Taverne

Cite this

@article{b0051fad50b149ac8ab98eab2a93d49b,

title = "NQontrol: An open-source platform for digital control-loops in quantum-optical experiments",

abstract = "In this paper, we present NQontrol, a digital feedback-control solution based on the ADwin platform that delivers eight simultaneous feedback loops running with 200 kHz sampling frequency and offers five second-order filtering sections per channel for flexible shaping of the feedback loop. With this system, we demonstrate a Pound-Drever-Hall lock of an optical resonator and compare its performance to an analog reference implementation. A comprehensive support package written in Python, together with a web-based graphical user interface, makes the system quick to setup and easy to use, while maintaining the full flexibility of open-source platforms.",

author = "Christian Darsow-Fromm and Luis Dekant and Stephan Grebien and Maik Schroeder and Roman Schnabel and Sebastian Steinlechner",

note = "Funding Information: This research was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation, Grant No. 388405737). This work was funded by the Deutsche Forschungsgemeinschaft (DFG) under Germany{\textquoteright}s Excellence Strategy EXC2121 (“Quantum Universe,” 390833306). Publisher Copyright: {\textcopyright} 2020 Author(s).",

year = "2020",

month = mar,

day = "1",

doi = "10.1063/1.5135873",

language = "English",

volume = "91",

journal = "Review of Scientific Instruments",

issn = "0034-6748",

publisher = "American Institute of Physics",

number = "3",

}

TY - JOUR

T1 - NQontrol

T2 - An open-source platform for digital control-loops in quantum-optical experiments

AU - Darsow-Fromm, Christian

AU - Dekant, Luis

AU - Grebien, Stephan

AU - Schroeder, Maik

AU - Schnabel, Roman

AU - Steinlechner, Sebastian

N1 - Funding Information: This research was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation, Grant No. 388405737). This work was funded by the Deutsche Forschungsgemeinschaft (DFG) under Germany’s Excellence Strategy EXC2121 (“Quantum Universe,” 390833306). Publisher Copyright: © 2020 Author(s).

PY - 2020/3/1

Y1 - 2020/3/1

N2 - In this paper, we present NQontrol, a digital feedback-control solution based on the ADwin platform that delivers eight simultaneous feedback loops running with 200 kHz sampling frequency and offers five second-order filtering sections per channel for flexible shaping of the feedback loop. With this system, we demonstrate a Pound-Drever-Hall lock of an optical resonator and compare its performance to an analog reference implementation. A comprehensive support package written in Python, together with a web-based graphical user interface, makes the system quick to setup and easy to use, while maintaining the full flexibility of open-source platforms.

AB - In this paper, we present NQontrol, a digital feedback-control solution based on the ADwin platform that delivers eight simultaneous feedback loops running with 200 kHz sampling frequency and offers five second-order filtering sections per channel for flexible shaping of the feedback loop. With this system, we demonstrate a Pound-Drever-Hall lock of an optical resonator and compare its performance to an analog reference implementation. A comprehensive support package written in Python, together with a web-based graphical user interface, makes the system quick to setup and easy to use, while maintaining the full flexibility of open-source platforms.

U2 - 10.1063/1.5135873

DO - 10.1063/1.5135873

M3 - Article

C2 - 32260013

SN - 0034-6748

VL - 91

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 3

M1 - 035114

ER -

NQontrol: An open-source platform for digital control-loops in quantum-optical experiments

Abstract

Access to Document

Fingerprint

Cite this