Astrophotonic spectroscopy: defining the potential advantage
arXiv:0910.4361 · doi:10.1111/j.1365-2966.2009.16173.x
Abstract
A photonic spectrograph can be much smaller than a conventional spectrograph with the same resolving power. Individual devices can be integrated with optical fibres to improve the multiplex gain in astronomical spectroscopy. Although experimental devices have been tested, the parameter space where integrated photonic spectrographs give a significant advantage over traditional methods has not been defined. This paper gives an overview of the theory with verification by direct simulation using Fresnel propagation and quantifies the benefit for representative spectroscopic capabilities. We thereby confirm the advantage of photonic spectrographs, especially to the next generation of Extremely Large Telescopes, and therefore conclude that these devices may be important for the future development of astronomical instrumentation.
Revised version submitted to MNRAS
References in corpus (4)
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Cited by in corpus (8)
- Arrayed Waveguide Grating Spectrometers for Astronomical Applications: New Results
- Astrophotonic Spectrographs
- 2023 Astrophotonics Roadmap: pathways to realizing multi-functional integrated astrophotonic instruments
- Spectrographs for astrophotonics
- Compact high-resolution spectrographs for large and extremely large telescopes: using the diffraction limit
- Photonic lantern behaviour and implications for instrument design
- Astrophotonic micro-spectrographs in the era of ELTs
- Astro2020: Astrophotonics White Paper