CubeSpec: LED-based calibration system

Job Schuermans; Gert Raskin; Dominic Bowman; Jeroen De Maeyer; Maarten Kempenaers; Jacob Pember; Pierre Royer; Hugues Sana; Christian Schwab; Bart Vandenbussche

doi:10.1117/12.2630366

CubeSpec: LED-based calibration system

Job Schuermans^*, Gert Raskin, Dominic Bowman, Jeroen De Maeyer, Maarten Kempenaers, Jacob Pember, Pierre Royer, Hugues Sana, Christian Schwab, Bart Vandenbussche

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

Abstract

CubeSpec is an in-orbit CubeSat mission aiming to demonstrate high-spectral-resolution astronomical spectroscopy with a 10 × 20cm² aperture telescope. A robust calibration system is crucial for CubeSpec's spectrograph to operate reliably and autonomously. Typically, flat-field illumination defines order locations, while a line source ties wavelength values to detector pixels. The main challenge is to fit everything into a 10 × 10 × 20cm³ volume without forfeiting quality and control. This work proposes Calibration Unit for CUbespec (CUCU). CUCU offers a compact, energy-efficient calibration solution for space-borne spectrograph platforms, miniaturizing both calibration stages. A blue and white LED coupled into one fiber produce the continuum light source, spanning the spectrograph's operational range of 420nm to 620nm. The line standards emerge from injecting collimated LED light into a solid Fabry-Pérot etalon. To satisfy the mission requirements, CUCU should deliver calibration exposures with an SNR of 200. Throughput measurements estimate calibration exposures to take no longer than 0.5s.

Original language	English
Title of host publication	Space Telescopes and Instrumentation 2022
Subtitle of host publication	Optical, Infrared, and Millimeter Wave
Editors	Laura E. Coyle, Shuji Matsuura, Marshall D. Perrin
Place of Publication	Bellingham, Washington
Publisher	SPIE
Pages	1218030-1-1218030-9
Number of pages	9
ISBN (Electronic)	9781510653429
ISBN (Print)	9781510653412
DOIs	https://doi.org/10.1117/12.2630366
Publication status	Published - 27 Aug 2022
Event	Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave - Montreal, Canada Duration: 17 Jul 2022 → 22 Jul 2022

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	12180
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave
Country/Territory	Canada
City	Montreal
Period	17/07/22 → 22/07/22

Keywords

CubeSat
echelle spectrograph
Fabry-Pérot
radial velocity
wavelength calibration

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10.1117/12.2630366

Cite this

Schuermans, J., Raskin, G., Bowman, D., De Maeyer, J., Kempenaers, M., Pember, J., Royer, P., Sana, H., Schwab, C., & Vandenbussche, B. (2022). CubeSpec: LED-based calibration system. In L. E. Coyle, S. Matsuura, & M. D. Perrin (Eds.), Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave (pp. 1218030-1-1218030-9). Article 1218030 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 12180). SPIE. https://doi.org/10.1117/12.2630366

Schuermans, Job ; Raskin, Gert ; Bowman, Dominic et al. / CubeSpec : LED-based calibration system. Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave. editor / Laura E. Coyle ; Shuji Matsuura ; Marshall D. Perrin. Bellingham, Washington : SPIE, 2022. pp. 1218030-1-1218030-9 (Proceedings of SPIE - The International Society for Optical Engineering).

@inproceedings{eb72209efad94aa6a47e0fc558f6fd28,

title = "CubeSpec: LED-based calibration system",

abstract = "CubeSpec is an in-orbit CubeSat mission aiming to demonstrate high-spectral-resolution astronomical spectroscopy with a 10 × 20cm2 aperture telescope. A robust calibration system is crucial for CubeSpec's spectrograph to operate reliably and autonomously. Typically, flat-field illumination defines order locations, while a line source ties wavelength values to detector pixels. The main challenge is to fit everything into a 10 × 10 × 20cm3 volume without forfeiting quality and control. This work proposes Calibration Unit for CUbespec (CUCU). CUCU offers a compact, energy-efficient calibration solution for space-borne spectrograph platforms, miniaturizing both calibration stages. A blue and white LED coupled into one fiber produce the continuum light source, spanning the spectrograph's operational range of 420nm to 620nm. The line standards emerge from injecting collimated LED light into a solid Fabry-P{\'e}rot etalon. To satisfy the mission requirements, CUCU should deliver calibration exposures with an SNR of 200. Throughput measurements estimate calibration exposures to take no longer than 0.5s.",

keywords = "CubeSat, echelle spectrograph, Fabry-P{\'e}rot, radial velocity, wavelength calibration",

author = "Job Schuermans and Gert Raskin and Dominic Bowman and {De Maeyer}, Jeroen and Maarten Kempenaers and Jacob Pember and Pierre Royer and Hugues Sana and Christian Schwab and Bart Vandenbussche",

year = "2022",

month = aug,

day = "27",

doi = "10.1117/12.2630366",

language = "English",

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series = "Proceedings of SPIE - The International Society for Optical Engineering",

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note = "Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave ; Conference date: 17-07-2022 Through 22-07-2022",

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Schuermans, J, Raskin, G, Bowman, D, De Maeyer, J, Kempenaers, M, Pember, J, Royer, P, Sana, H, Schwab, C & Vandenbussche, B 2022, CubeSpec: LED-based calibration system. in LE Coyle, S Matsuura & MD Perrin (eds), Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave., 1218030, Proceedings of SPIE - The International Society for Optical Engineering, vol. 12180, SPIE, Bellingham, Washington, pp. 1218030-1-1218030-9, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, Montreal, Canada, 17/07/22. https://doi.org/10.1117/12.2630366

CubeSpec: LED-based calibration system. / Schuermans, Job; Raskin, Gert; Bowman, Dominic et al.
Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave. ed. / Laura E. Coyle; Shuji Matsuura; Marshall D. Perrin. Bellingham, Washington: SPIE, 2022. p. 1218030-1-1218030-9 1218030 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 12180).

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

TY - GEN

T1 - CubeSpec

T2 - Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave

AU - Schuermans, Job

AU - Raskin, Gert

AU - Bowman, Dominic

AU - De Maeyer, Jeroen

AU - Kempenaers, Maarten

AU - Pember, Jacob

AU - Royer, Pierre

AU - Sana, Hugues

AU - Schwab, Christian

AU - Vandenbussche, Bart

PY - 2022/8/27

Y1 - 2022/8/27

N2 - CubeSpec is an in-orbit CubeSat mission aiming to demonstrate high-spectral-resolution astronomical spectroscopy with a 10 × 20cm2 aperture telescope. A robust calibration system is crucial for CubeSpec's spectrograph to operate reliably and autonomously. Typically, flat-field illumination defines order locations, while a line source ties wavelength values to detector pixels. The main challenge is to fit everything into a 10 × 10 × 20cm3 volume without forfeiting quality and control. This work proposes Calibration Unit for CUbespec (CUCU). CUCU offers a compact, energy-efficient calibration solution for space-borne spectrograph platforms, miniaturizing both calibration stages. A blue and white LED coupled into one fiber produce the continuum light source, spanning the spectrograph's operational range of 420nm to 620nm. The line standards emerge from injecting collimated LED light into a solid Fabry-Pérot etalon. To satisfy the mission requirements, CUCU should deliver calibration exposures with an SNR of 200. Throughput measurements estimate calibration exposures to take no longer than 0.5s.

AB - CubeSpec is an in-orbit CubeSat mission aiming to demonstrate high-spectral-resolution astronomical spectroscopy with a 10 × 20cm2 aperture telescope. A robust calibration system is crucial for CubeSpec's spectrograph to operate reliably and autonomously. Typically, flat-field illumination defines order locations, while a line source ties wavelength values to detector pixels. The main challenge is to fit everything into a 10 × 10 × 20cm3 volume without forfeiting quality and control. This work proposes Calibration Unit for CUbespec (CUCU). CUCU offers a compact, energy-efficient calibration solution for space-borne spectrograph platforms, miniaturizing both calibration stages. A blue and white LED coupled into one fiber produce the continuum light source, spanning the spectrograph's operational range of 420nm to 620nm. The line standards emerge from injecting collimated LED light into a solid Fabry-Pérot etalon. To satisfy the mission requirements, CUCU should deliver calibration exposures with an SNR of 200. Throughput measurements estimate calibration exposures to take no longer than 0.5s.

KW - CubeSat

KW - echelle spectrograph

KW - Fabry-Pérot

KW - radial velocity

KW - wavelength calibration

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U2 - 10.1117/12.2630366

DO - 10.1117/12.2630366

M3 - Conference proceeding contribution

AN - SCOPUS:85146707999

SN - 9781510653412

T3 - Proceedings of SPIE - The International Society for Optical Engineering

SP - 1218030-1-1218030-9

BT - Space Telescopes and Instrumentation 2022

A2 - Coyle, Laura E.

A2 - Matsuura, Shuji

A2 - Perrin, Marshall D.

PB - SPIE

CY - Bellingham, Washington

Y2 - 17 July 2022 through 22 July 2022

ER -

Schuermans J, Raskin G, Bowman D, De Maeyer J, Kempenaers M, Pember J et al. CubeSpec: LED-based calibration system. In Coyle LE, Matsuura S, Perrin MD, editors, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave. Bellingham, Washington: SPIE. 2022. p. 1218030-1-1218030-9. 1218030. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.2630366

CubeSpec: LED-based calibration system

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