NanoSpec: a diffraction limited micro-spectrograph for pico- and nano-satellites

Christopher H. Betters; S. G. Leon-Saval; J. Bland-Hawthorn

doi:10.1117/12.925819

21 September 2012 NanoSpec: a diffraction limited micro-spectrograph for pico- and nano-satellites

Christopher H. Betters, S. G. Leon-Saval, J. Bland-Hawthorn

Proceedings Volume 8442, Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave; 84424B (2012) https://doi.org/10.1117/12.925819
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

Abstract

Here we present a novel diffraction limited spectrograph (NanoSpec) designed for integration in the 0.75kg i-INPSIRE satellite at the University of Sydney. NanoSpec is a single-mode fibre fed spectrograph operating very close to the diffraction limit over a wavelength range of 450nm to 700nm. The spectrograph is fed light via a single-mode (and thus diffraction limited) fibre pseudo-slit, allowing an extremely compact spectrograph while maintaining high performance. The current design has two configurations (for two different detectors), both achieving diffraction limited resolving powers (λ/Δλ) of 650 and 1400 respectively. The primary goal of NanoSpec is to demonstrate the potential of the PIMMS (photonic integrated multimode micro-spectrograph) type design for deployment in high altitude and space-based applications. To that end we present the optical design and laboratory based testing in preparation for a high altitude balloon launch and later on the i-INPSIRE satellite.

Citation Download Citation

Christopher H. Betters, S. G. Leon-Saval, and J. Bland-Hawthorn "NanoSpec: a diffraction limited micro-spectrograph for pico- and nano-satellites", Proc. SPIE 8442, Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave, 84424B (21 September 2012); https://doi.org/10.1117/12.925819

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