CAOSP abstracts, Volume: 49, No.: 2, year: 2019

Abstract: Astrophotonics is a field combining astronomical instrumentation and photonics, with the aim of making instruments cheaper, smaller or increasing their functionality. Small telescopes are perfectly placed to take advantage of these technologies, as their size reduces the complexity of instruments. In our group at the Landessternwarte we are working on two experimental technologies that could greatly benefit spectrographs behind small telescopes. The first is photonic reformatting, akin to image slicing, but using a photonic lantern to sample the telescope point spread function. The second technology is a sensor at the focal plane of the telescope, allowing increased coupling efficiency. This sensor is composed of a 3D printed microlens array coupled to a fibre bundle. We summarise both of these devices and their potential in future small telescope instruments.

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Last update: May 30, 2019