Focal ratio degradation in optical fibres for the Hector integral field units

Adeline Haobing Wang; Rebecca Brown; Julia J. Bryant; Sergio Leon-Saval

doi:10.1093/mnras/stad1273

Focal ratio degradation in optical fibres for the Hector integral field units

Adeline Haobing Wang^*, Rebecca Brown, Julia J. Bryant, Sergio Leon-Saval

^*Corresponding author for this work

Australian Astronomical Optics

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

4 Citations (Scopus)

61 Downloads (Pure)

Abstract

Focal Ratio Degradation (FRD) in optical fibres can result in light loss. In astronomical instrumentation, FRD must be controlled because light levels are low. A new Integral Field Spectrograph (IFS) instrument called Hector, was recently completed and was installed on the Anglo-Australian Telescope (AAT) in Australia in 2021 December. The integral field units (IFUs) for Hector made with hexagonally packed multi-mode fibres are called hexabundles. In this paper, we introduce a cone-beam measurement method to measure FRD at optical wavelengths. We present the FRD and throughput performance of the hexabundles for Hector and show that the process for making hexabundles introduced no additional significant FRD beyond that of the bare fibre.

Original language	English
Pages (from-to)	4310-4322
Number of pages	13
Journal	Monthly Notices of the Royal Astronomical Society
Volume	522
Issue number	3
DOIs	https://doi.org/10.1093/mnras/stad1273
Publication status	Published - Jul 2023

Bibliographical note

Copyright the Author(s) 2023. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

instrumentation: detectors
techniques: imaging spectroscopy
techniques: miscellaneous

Access to Document

10.1093/mnras/stad1273Licence: CC BY

Publisher version (open access)Final published version, 1.92 MBLicence: CC BY

Cite this

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title = "Focal ratio degradation in optical fibres for the Hector integral field units",

abstract = "Focal Ratio Degradation (FRD) in optical fibres can result in light loss. In astronomical instrumentation, FRD must be controlled because light levels are low. A new Integral Field Spectrograph (IFS) instrument called Hector, was recently completed and was installed on the Anglo-Australian Telescope (AAT) in Australia in 2021 December. The integral field units (IFUs) for Hector made with hexagonally packed multi-mode fibres are called hexabundles. In this paper, we introduce a cone-beam measurement method to measure FRD at optical wavelengths. We present the FRD and throughput performance of the hexabundles for Hector and show that the process for making hexabundles introduced no additional significant FRD beyond that of the bare fibre.",

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author = "Wang, {Adeline Haobing} and Rebecca Brown and Bryant, {Julia J.} and Sergio Leon-Saval",

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AU - Wang, Adeline Haobing

AU - Brown, Rebecca

AU - Bryant, Julia J.

AU - Leon-Saval, Sergio

N1 - Copyright the Author(s) 2023. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

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N2 - Focal Ratio Degradation (FRD) in optical fibres can result in light loss. In astronomical instrumentation, FRD must be controlled because light levels are low. A new Integral Field Spectrograph (IFS) instrument called Hector, was recently completed and was installed on the Anglo-Australian Telescope (AAT) in Australia in 2021 December. The integral field units (IFUs) for Hector made with hexagonally packed multi-mode fibres are called hexabundles. In this paper, we introduce a cone-beam measurement method to measure FRD at optical wavelengths. We present the FRD and throughput performance of the hexabundles for Hector and show that the process for making hexabundles introduced no additional significant FRD beyond that of the bare fibre.

AB - Focal Ratio Degradation (FRD) in optical fibres can result in light loss. In astronomical instrumentation, FRD must be controlled because light levels are low. A new Integral Field Spectrograph (IFS) instrument called Hector, was recently completed and was installed on the Anglo-Australian Telescope (AAT) in Australia in 2021 December. The integral field units (IFUs) for Hector made with hexagonally packed multi-mode fibres are called hexabundles. In this paper, we introduce a cone-beam measurement method to measure FRD at optical wavelengths. We present the FRD and throughput performance of the hexabundles for Hector and show that the process for making hexabundles introduced no additional significant FRD beyond that of the bare fibre.

KW - instrumentation: detectors

KW - techniques: imaging spectroscopy

KW - techniques: miscellaneous

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JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 3

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Focal ratio degradation in optical fibres for the Hector integral field units

Abstract

Bibliographical note

Keywords

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Hector-1: completing the revolutionary multi integral field spectrograph

Hector-1: Completing a revolutionary machine to unravel how galaxies evolve

Cite this

Focal ratio degradation in optical fibres for the Hector integral field units

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Projects

Hector-1: completing the revolutionary multi integral field spectrograph

Hector-1: Completing a revolutionary machine to unravel how galaxies evolve

Cite this