@inproceedings{b4a32da4b11e49e296f53b89f0dfd8e3,
title = "Microlenses for astrophotonic instruments manufactured by ultrafast-laser assisted etching",
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. ",
keywords = "direct laser writing, fused silica, microlens, multi-object spectroscopy, passive alignment, ultrafast laser assisted etching",
author = "Ross, {Calum A.} and David Lee and Isabelle Guinouard and Thomson, {Robert R.}",
year = "2020",
month = dec,
day = "13",
doi = "10.1117/12.2561481",
language = "English",
isbn = "9781510636897",
series = "Proceedings of SPIE",
publisher = "SPIE",
editor = "Ramon Navarro and Roland Geyl",
booktitle = "Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV",
address = "United States",
note = "SPIE Astronomical Telescopes + Instrumentation 2020 ; Conference date: 14-12-2020 Through 22-12-2020",
}