A multi-object spectrograph using single-mode fibers with a coronagraph:  progress towards laboratory results on the high-contrast testbed for segmented telescopes

Coker, Carl T.; Sayson, Jorge Llop; Shaklan, Stuart; Riggs, A. J. Eldorado; Mawet, Dimitri; Ruane, Garreth; Jovanović, Nemanja; Echeverri, Daniel

doi:10.1117/12.2528569

Cited by 1 publication

(1 citation statement)

References 28 publications

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“…They can also help filter out unwanted speckle (star light), 32 and they make future wavefront control relatively simple in that only a few spatial frequencies need to be addressed, 33 which allows the bandwidth to be increased with these algorithms. 34 Finally, they allow the use of compact fiber-fed spectrographs that can be located of the telescope in a more stable environment. If fed by an SMF, the position and shape of the beam inside a fiber-fed spectrograph is agnostic of input conditions and greatly simplifies the spectral calibration by making the line spread function, a Gaussian profile in this case, which is extremely stable.…”

Section: Fiu Phase I Goals and Requirementsmentioning

confidence: 99%

Keck Planet Imager and Characterizer: a dedicated single-mode fiber injection unit for high-resolution exoplanet spectroscopy

Delorme

Jovanović

Echeverri

et al. 2021

J. Astron. Telesc. Instrum. Syst.

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The Keck Planet Imager and Characterizer (KPIC) is a purpose-built instrument to demonstrate technological and instrumental concepts initially developed for the exoplanet direct imaging field. Located downstream of the current Keck II adaptive optic (AO) system, KPIC contains a fiber injection unit (FIU) capable of combining the high-contrast imaging capability of the AOs system with the high dispersion spectroscopy capability of the current Keck high resolution infrared spectrograph (NIRSPEC). Deployed at Keck in September 2018, this instrument has already been used to acquire high-resolution spectra (R > 30;000) of multiple targets of interest. In the near term, it will be used to spectrally characterize known directly imaged exoplanets and low-mass brown dwarf companions visible in the northern hemisphere with a spectral resolution high enough to enable spin and planetary radial velocity measurements as well as Doppler imaging of atmospheric weather phenomena. Here, we present the design of the FIU, the unique calibration procedures needed to operate a single-mode fiber instrument and the system performance. © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Section: Fiu Phase I Goals and Requirementsmentioning

confidence: 99%

Keck Planet Imager and Characterizer: a dedicated single-mode fiber injection unit for high-resolution exoplanet spectroscopy

Delorme

Jovanović

Echeverri

et al. 2021

J. Astron. Telesc. Instrum. Syst.

Self Cite

View full text Add to dashboard Cite

show abstract

A multi-object spectrograph using single-mode fibers with a coronagraph: progress towards laboratory results on the high-contrast testbed for segmented telescopes

Abstract: A multi-object spectrograph using single-mode fibers with a coronagraph: progress towards laboratory results on the high-contrast testbed for segmented telescopes,"

Cited by 1 publication

References 28 publications

Keck Planet Imager and Characterizer: a dedicated single-mode fiber injection unit for high-resolution exoplanet spectroscopy

Keck Planet Imager and Characterizer: a dedicated single-mode fiber injection unit for high-resolution exoplanet spectroscopy

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