Automated testing of optical fibres: towards the design of the Maunakea Spectroscopic Explorer Fibre Transmission System

Stephanie Monty; Farbod Jahandar; Jooyoung Lee; Kim A. Venn; Colin Bradley; Darren Erickson; David Crampton; Victor Nicolov; Collin L. Kielty; Celine Mazoukh; Patrick Hall

doi:10.1117/12.2311952

9 July 2018 Automated testing of optical fibres: towards the design of the Maunakea Spectroscopic Explorer Fibre Transmission System

Stephanie Monty, Farbod Jahandar, Jooyoung Lee, Kim A. Venn, Colin Bradley, Darren Erickson, David Crampton, Victor Nicolov, Collin L. Kielty, Celine Mazoukh, Patrick Hall

Author Affiliations +

Proceedings Volume 10702, Ground-based and Airborne Instrumentation for Astronomy VII; 107027I (2018) https://doi.org/10.1117/12.2311952
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

We present the results of an automated fibre optic test bench constructed at the University of Victoria as part of the Maunakea Spectroscopic Explorer (MSE) Fibre Transmission System (FiTS). In preparation for MSE-FiTS, we have begun characterizing the focal ratio degradation (FRD) of candidate multi-mode fibres with the ultimate goal of testing all 4000 MSE fibres. To achieve this, we have built an optical bench to perform an automated version of the collimated beam test. Herein we present the design of the bench and discuss the automation of components by introducing the Big FiTS Fibre Wrapper (Big FFW), our open-source automation software. We conclude with the results of tests performed using the Big FFW on a sample of candidate fibre, comparing the Big FFW results against those found using manual methods. Our results suggest that the candidate MSE fibre meets the science requirement of < 5% FRD at f /2 and find less than 1% disagreement between both measurement methods.

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Stephanie Monty, Farbod Jahandar, Jooyoung Lee, Kim A. Venn, Colin Bradley, Darren Erickson, David Crampton, Victor Nicolov, Collin L. Kielty, Celine Mazoukh, and Patrick Hall "Automated testing of optical fibres: towards the design of the Maunakea Spectroscopic Explorer Fibre Transmission System", Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 107027I (9 July 2018); https://doi.org/10.1117/12.2311952

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KEYWORDS

Cameras

Optical benches

Collimation

Optical testing

Spectroscopy

Optical fibers

Telescopes

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