Ultrafast laser inscription: an enabling technology for astrophotonics

Details Ultrafast laser inscription: an enabling technology for astrophotonics Ultrafast laser inscription: an enabling technology for astrophotonics

2009-08-10

arxiv.org/abs/0908.1325v1

Thomson, R.R., Kar A.K., and Allington-Smith, J.R. Optics Express 17, 1963 (2009)

Astronomy and Astrophysics

Astrophysics

Instrumentation and Methods for Astrophysics

Published in Optics Express

Scientific paper

The application of photonics to astronomy offers major advantages in the area of highly-multiplexed spectroscopy, especially when applied to extremely large telescopes. These include the suppression of the near-infrared night-sky spectrum [J. Bland-Hawthorn et al, Opt. Express 12, 5902 (2004), S. G. Leon-Saval et al, Opt. Lett. 30, 2545 (2005)] and the miniaturisation of spectrographs so that they may integrated into the light-path of individual spatial samples [J. Bland-Hawthorn et al, Proc SPIE 6269, 62690N (2006)]. Efficient collection of light from the telescope requires multimode optical fibres and three-dimensional photonic devices. We propose ultrafast laser inscription (ULI) [R. R. Thomson et al, Opt. Express 15, 11691 (2007)] as the best technology to fabricate 3D photonic devices for astrophotonic applications.

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