Microlenses for astrophotonic instruments manufactured by ultrafast-laser assisted etching - INSU - Institut national des sciences de l'Univers Access content directly
Conference Papers Year : 2020

Microlenses for astrophotonic instruments manufactured by ultrafast-laser assisted etching

Calum A. Ross
  • Function : Author
David Lee
  • Function : Author
Robert R. Thomson
  • Function : Author

Abstract

The performance of astrophotonic instruments is determined by various factors including the quality of optical surfaces and the precise alignment of components. As instruments become more complex and compact, the manufacture and assembly of components is increasingly challenging. We propose that a laser-based glass microfabrication technique known as ultrafast-laser assisted etching (ULAE) is ideally suited to the manufacture of both existing and novel components for astrophotonic instruments. To demonstrate this potential, we will present ULAE manufactured microlenses with integrated passive alignment features for efficient optical fiber coupling. A full physical and optical characterization of the micro-lenses is given. These components have applications in fiber-fed multi-object spectrographs.
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Dates and versions

insu-03969068 , version 1 (02-02-2023)

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Calum A. Ross, David Lee, Isabelle Guinouard, Robert R. Thomson. Microlenses for astrophotonic instruments manufactured by ultrafast-laser assisted etching. Proceedings of the SPIE, 0000, à renseigner, Unknown Region. ⟨10.1117/12.2561481⟩. ⟨insu-03969068⟩
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