PIMMS: photonic integrated multimode microspectrograph

Joss Bland-Hawthorn; Jon Lawrence; Gordon Robertson; Sam Campbell; Ben Pope; Chris Betters; Sergio Leon-Saval; Tim Birks; Roger Haynes; Nick Cvetojevic; Nem Jovanovic

doi:10.1117/12.856347

14 July 2010 PIMMS: photonic integrated multimode microspectrograph

Joss Bland-Hawthorn, Jon Lawrence, Gordon Robertson, Sam Campbell, Ben Pope, Chris Betters, Sergio Leon-Saval, Tim Birks, Roger Haynes, Nick Cvetojevic, Nem Jovanovic

Author Affiliations +

Proceedings Volume 7735, Ground-based and Airborne Instrumentation for Astronomy III; 77350N (2010) https://doi.org/10.1117/12.856347
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

We present the first integrated multimode photonic spectrograph, a device we call PIMMS #1. The device comprises a set of multimode fibres that convert to single-mode propagation using a matching set of photonic lanterns. These feed to a stack of cyclic array waveguides (AWGs) that illuminate a common detector. Such a device greatly reduces the size of an astronomical instrument at a fixed spectroscopic resolution. Remarkably, the PIMMS concept is largely independent of the telescope diameter, input focal ratio and entrance aperture - i.e. one size fits all! The instrument architecture can also exploit recent advances in astrophotonics (e.g. OH suppression fibres). We present a movie of the instrument's operation and discuss the advantages and disadvantages of this approach.

Citation Download Citation

Joss Bland-Hawthorn, Jon Lawrence, Gordon Robertson, Sam Campbell, Ben Pope, Chris Betters, Sergio Leon-Saval, Tim Birks, Roger Haynes, Nick Cvetojevic, and Nem Jovanovic "PIMMS: photonic integrated multimode microspectrograph", Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 77350N (14 July 2010); https://doi.org/10.1117/12.856347

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