PIMMS: Photonic integrated multimode microspectrograph

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

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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.
Original languageEnglish
Article number77350N
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume7735
DOIs
Publication statusPublished - Jun 2010
EventGround-Based and Airborne Instrumentation for Astronomy III, June 27, 2010 - July 2, 2010 - San Diego, CA, USA United States
Duration: 1 Jun 2010 → …

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